Fluid medium sampler

FIELD: process engineering.

SUBSTANCE: proposed device is intended for fluid medium flowing in min pipe and containing at least selected phase and another phase, and comprises sampling device to sample specimen from fluid medium from multiphase mixture. Proposed device comprises sampling variable-volume chamber to allow gravity-forced disintegration of fluid medium into that enriched by selected phase and fluid medium enriched by at least another one phase. Device incorporates also valve-type manifold that communicates sampling device to sampling chamber to direct fluid medium into said chamber and enriched fluid medium back into main pipe. Proposed method consists of three stages. First stage comprises sampling multiphase fluid medium by connecting one probe to sampling chamber and increasing chamber inner volume to allow gravity-forced fluid medium specimen disintegration into that enriched with selected phase and at least one another fluid medium enriched with useless phase. Second phase comprises draining at least one fluid medium enriched with useless phase back into main pipe by connecting sampling chamber with one probe to reduce chamber inner volume. Then first and second stages are repeated to produce given amount of fluid medium enriched by selected phase in sampling chamber. Third stage consists in forcing aforesaid phase from sampling chamber, connecting the latter to outlet channel and reducing chamber inner volume.

EFFECT: improved operating performances.

16 cl, 2 dwg

 

The technical field to which the invention relates.

The present invention relates to a device for selection of one phase of the multiphase mixture flowing environments.

The particular application of the invention relates to the selection of the various phases of the multiphase mixture fluid from a hydrocarbon well. Such multiphase mixture fluid usually contains three phases: an aqueous phase, a liquid hydrocarbon phase and a gaseous hydrocarbon phase.

Background of invention

After drilling and security of hydrocarbon wells, usually perform various operations, such as operations testing, intended to characterize the various components of the waste stream arising from the well, and evaluation of the productive capacities of the wells, and then the operation well operation, while the extracted oil meets the requirements of quality, flow, etc.

During these operations, the composition of the waste stream changes. The waste stream is initially consists mainly of water. Then the percentage of water balance is gradually reduced and the composition of the waste stream is enriched in oil and gas. Thus, the exhaust stream is a multiphase mixture flowing environments. In addition, the multiphase mixture flowing environments can be complex flow conditions, such as aerosol, a bubble, a dream is adny, emulsion modes, etc. in the well bore or flow lines. During testing and operation important as closely as possible to identify and/or analyze the different phases of the components of the multiphase mixture flowing environments. At the preliminary stage get a representative sample of the multiphase mixture fluid resulting from hydrocarbon wells. Known systems are disclosed in U.S. patents 6,182,505 and 6,212,948 and relate to a device for sampling fluid.

For the selection phase of the multiphase mixture fluid according to the prior art provide a pipe through which the multiphase mixture fluid, provided with a tank-traps (upper and lower traps)connected to the corresponding drain to collect specific phase. The representation phase, collected by the tank-traps, is problematic because of the phase in the tank-traps are not updated continuously. In addition, at the bottom of the trap going all the heavy phase, such as liquid (oil, water and solids. These solids often clog up the drain, preventing further selection, and if the flow of the heavy liquid (water), it is very difficult to pour more light (oil), because the rate of accumulation can exceed the speed of flow.

Also the known method according to which a disposable sample (Zabo is hydrated cylinder) is extracted from the pipe, by flowing the multiphase mixture fluid, for further recovery operations of the sample and separation of the phases in the laboratory. Recovery of the sample in the laboratory is to reproduce the conditions of temperature and pressure existing in the pipe, to achieve the initial thermodynamic equilibrium and, thus, the initial phases of the fluid. Then the stable phases are separated and transferred into multiple cells for physico-chemical measurements. This method does not allow you to manage selected volume of each phase, which can lead to insufficient amount of this phase for measurements after the selection.

The invention

One purpose of the present invention is to provide a device for sampling, which overcomes at least one of the disadvantages of the known devices.

According to the invention a device for sampling a fluid medium is an active device for sampling, collecting from multi-phase mixture fluid flowing in the main pipe, the sample phase, without changing its composition and condition. Device for sampling selects the current sample fluid in a selected position of the pipe, collect the sample in the chamber of variable volume and enriches the sample in this phase, dropping back into the main pipe unnecessary the basics in an iterative process. Device for sampling includes a phase detector for the perception of the type of fluid taken and ejected from the chamber, and the detector volume measurement for measuring the volume of the chamber.

Device for sampling allows you to select significant and a controlled amount of the selected phase for further analysis.

Device for sampling allows to maintain the sample under the conditions (pressure and temperature) linear flow during the entire selection process in order to avoid changes in the composition due to mass transfer.

In particular, the present invention relates to a device for sampling fluid enriched in the selected phase of the multiphase mixture fluid flowing in the main pipe, and containing at least the selected phase and another phase containing the selected device for selection of the sample fluid from the multiphase mixture fluid flowing in the main pipe, a sampling chamber having a variable volume for collecting a sample of fluid from a multiphase mixture of fluid and software bundle under the action of gravity of the sample fluid to the fluid enriched in the selected phase, and the fluid enriched with at least one phase, and valve manifold, connecting the selected device to select the camera to direct fluid sample the environment in the selected chamber and for directing a fluid medium, enriched in the selected phase in the outlet channel for the sample and the fluid enriched in the other phase, back in the main tunnel.

Device for sampling further comprises a device for temperature control to maintain the selected camera and the valve manifold at the temperature of the multiphase mixture fluid in the main pipe. Device for temperature control can contain the heat insulator, the heating device and the temperature controller.

Select the device may contain a sampling tube, which is adapted for connection to the main pipe and containing at least one selected probe. Select the camera contains the upper channel and the lower channel. Valve manifold connects the selected probe to the camera and has an exhaust channel for sample to ensure the fluid enriched in the selected phase. It contains at least one valve of the probe, connects the selected probe to the phase detector, the valve upper channel connecting the phase detector to the upper channel, the lower valve channel connecting the phase detector to the lower channel, and an exhaust valve that connects the phase detector to the exhaust channel for the sample.

The phase detector is, for example, the optical detector of the phase.

Select the camera may include a piston that is capable of the move up and back in a choice chamber under the action of the actuator piston. Variable amount is determined by the position of the piston in the selected cell. The piston is separated from the wall of the selected camera annular hole to create the conditions for draining the fluid present in the chamber, to the lower channel.

Selected pipe may include lower, middle and upper selective probes, respectively located in the deep part, the Central part and the upper part of the selected pipe. Upper, middle and lower selective probes directed to the flow of the multiphase mixture flowing environments.

Selected pipe may further comprise a selective probe for gas, located either in the middle or in the upper part of the selected tube, and oriented in the opposite direction relative to the lower, middle and upper selective probes.

Selected pipe may contain one selected probe with adjustable position in the selected pipe.

Device for sampling may further comprise a sensor for measuring the volume of the selected camera (for example, measuring the position of the piston in the selected camera).

The present invention also relates to a method of sampling fluid enriched in the selected phase of the multiphase mixture fluid flowing in the main pipe connected with a device for sampling according to the invention. The method of sampling includes the first stage,containing the steps of selection of sample fluid from the multiphase mixture fluid connection one selected probe to the selected chamber and increase the volume of the chamber and ensure separation under the action of gravity sample the fluid in the selected camera on the fluid enriched in the selected phase, and at least one fluid medium, enriched with unnecessary phase, the second phase containing the steps of draining at least one fluid medium, enriched with unnecessary phase back into the main pipe connection selected camera with one selected probe and reducing the volume of the chamber, the repetition of the first and second stages to obtain a given quantity of the fluid enriched in the selected phase in the selected cell, and the third stage of ejection of the fluid enriched in the selected phase from the camera by connecting the camera with an outlet channel and reducing the volume of the chamber.

During the operation of the sampling device for sampling is maintained at a temperature of the multiphase mixture fluid flowing in the main pipe. In addition, the phase of the fluid flowing in the selected cell and deriving from it, are tracked.

Brief description of drawings

The present invention is illustrated in the examples and is not limited to the attached drawings, provided end-to-end system of notation, which shows the following:

figure 1 depicts the scheme of hydrocarbon wells and downhole equipment that contains a device for sampling;

figure 2 depicts a diagram of a device for selection of one phase of the multiphase mixture is ecochic environments according to the invention.

Detailed description of the invention

Figure 1 schematically shows a drilling rig OR production of hydrocarbons. The exhaust flow E follows from the well through the wellhead WH hole. Mouth WH well connected with a variety of downhole equipment OE through the main pipe FL. The downhole equipment may contain any known equipment for testing of the well or well operation, which will not be additionally described. The main pipe FL contains a device 1 for sampling the fluid enriched in the selected phase from the waste stream E, formed of a multiphase mixture flowing environments. Device for sampling delivers the selected fluid SF environment or to the appropriate analyzer ANA for analysis in the field or in the vessel SB for samples for subsequent analysis in the laboratory LAB.

Figure 2 schematically shows a device for selection of one phase of the multiphase mixture fluid according to the invention.

The device 1 for sampling includes sampling pipe 2, select camera 3 variable displacement, valve manifold 4 and the device 6 to control the temperature.

Selected pipe 2 is adapted for connection to the main pipe FL, for example, by known means flange/nipple and connections. Selected tube 2 contains four selected probe: select the th probe SP1 for gas, the lower selective probe SP2, average of selected probe SP3 and top selected probe SP4.

The lower selective probe SP2 is located in the lower part of the selected pipe 2. Average selected probe SP3 is located in the Central part of the tube. Top selected probe SP4 is located in the upper part of the tube. Upper, middle and lower selective probes directed to the flow of the multiphase mixture fluid FF (i.e. selected tips of the upper, middle and lower selected probes directed against the flow). Selected probe SP1 for gas is located in the middle part of the tube and oriented in the direction of flow of the multiphase mixture fluid FF, ie in the opposite direction relative to the upper, middle and lower selective probes (i.e. selected selected tip of the probe gas is directed downstream).

Selected probes SP1, SP2, SP3, SP4 allow to select samples in different positions and directions in the main pipe. In particular, this location allows you to capture the predominant phase of the multiphase mixture fluid FF flowing in the main pipe 2, depending on its quality (gas, liquid) and flow conditions (spray, bubble, shell, emulsion modes etc). To capture the dominant phase one of the selected probes can be selected through the built-valve manifold, further described below.

The shape of the selected pipe and agenie selected probes SP1, SP2, SP3 on the same vertical line, as shown in figure 2, are not limitations. Alternative selected pipe can have shapes and configurations other than shown in figure 2, for example, it may be a pipe having a T-shaped branching, knee, etc. in Addition, the position of the selected probes, and their number can vary depending on the characteristics of the flow of fluid. In particular, the flow characteristics of the fluid depend on the location of the sampling point after cranked or straight part of the main pipe, etc. This configuration main pipe possible, and therefore the position of the selected probe can be adapted to the configuration. Thus, the selected probes SP1, SP2, SP3, SP4 can be located in accordance with different positions, angles and directions relative to the direction of flow of the fluid in the main pipe.

Fixed the location of the selected probes in the pipe and the absence of moving parts has the advantage that the selected pipe and selected probes is very robust against leaks and problems of jamming regardless of the characteristics of the flow of the multiphase mixture fluid (flow regime, pressure, temperature, composition ...).

Select camera 3 variable volume contains the upper channel 3A and the lower channel 3B. Choice Luggage 3 extra content the t piston 7A. The piston can move in the chamber, therefore the variable volume of the selected camera 3 is determined by the position of the piston 7A in it. The size of the piston and its position in the chamber defines a circular hole 9, allowing fluid to flow into the chamber or out through the bottom channel 3B. The camera is isolated from the piston seal 7B. Mainly the lower channel is located at the level of the packing of the piston, i.e. at the lowest point, where you can collect the fluid present in the chamber (for example, heavy liquid phase).

The piston 7A is driven by its drive 7D. The 7D drive piston may be a hydraulic drive unit containing the hydraulic actuator to move the piston in the chamber and a loaded spring to move the piston from the chamber. Alternative piston selected camera can be triggered by any other known mechanical drive (depending on the available energy).

Device for sampling further comprises a sensor (not shown) for measuring the volume (empty space) selected camera. A sensor such as an encoder that measures the position of the piston in the selected cell. The value of this volume may be available for reading with mechanical tools (Vernier) and/or digital display.

Select a camera with a similar piston syringe, high pressure, p is Solea be sucked into the chamber the fluid, selected selected probe, and throw him out of the cell. The camera acts as a gravitational separator for the selected fluid.

For specific applications in the development of oil fields mixture of hydrocarbon fluid flowing in the main pipe, is a mixture that usually contains three phases: an aqueous phase (water phase is in fact a phase enriched water), liquid hydrocarbon phase (oil phase is in fact a phase enriched in oil) and gaseous hydrocarbon phase (gas phase). Selected fluid (mixture of hydrocarbon fluid)coming into the camera, splits under the action of gravity on the fluid layer and the layer of GE gas. The fluid layer consists of a layer WE enriched water (water with dissolved gases, salts and impurities, namely oil), and a layer enriched with oil, OE (oil with dissolved gases and impurity, namely water). The fluid layer may further comprise emulsion layer between the layer of enriched water, and a layer enriched with oil. The thickness of the emulsion layer depends on the relative physical and chemical properties (e.g., density, interfacial tension, etc) the oil and water phases. Fluid selected one of the selected probes can be absorbed into the camera either through the upper channel 3A, or through the bottom channel 3B. predpochtitelno fluid is sucked through the upper channel 3A.

Fluid located in the chamber can be exhausted from the chamber through the upper channel 3A or through the lower channel 3B. Preferably the lighter phase (gas phase, but also the phase, enriched in oil) are ejected from the chamber through the upper channel 3A, and the heavier phase (phase enriched water, but also the phase, enriched in oil) are emitted through the lower channel 3B. Any selected probe SP1, SP2, SP3, SP4 can be used to clear unwanted phase back into the main pipe FL. The advantage is that the camera can be constructed so as to minimize unused space.

Valve manifold 4 connects the selected probes SP1, SP2, SP3 and SP4 selected camera 3. Valve manifold provides hydraulic and mechanical connection between the probes and the camera.

Valve manifold 4 includes an outlet 5 for sample for supplying fluid enriched in one phase, for example, to the appropriate analyzer for direct analysis of the fluid or in the transport cylinder or vessel for subsequent analysis in the laboratory.

Valve manifold 4 also contains the detector 8 phase to determine the type of phase, the current from the selected probes in the camera and back or from the chamber to the exhaust channel. Mainly the phase detector is an optical detector phase. Probe with optical directorates built-in valve manifold, that allows us to perceive all of the fluids flowing into the chamber and flowing out of it.

Valve manifold 4 includes at least one valve V1, V2, V3, V4 probe, the valve V5 of the upper channel, the valve V6 lower channel and an exhaust valve V7.

Four valves V1, V2, V3, V4 probe respectively connect the gas SP1, bottom SP2, average SP3 and upper SP4 selected probes to the detector 8 phase.

Valve V5 of the upper channel connects the detector 8 phase to the upper channel 3A of the chamber 3.

Valve V6 lower channel connects the phase detector to the lower channel 3B camera 3.

Exhaust valve V7 connects the detector 8 phase to the exhaust channel 5 for a sample.

Valve manifold 4 allows the selection of the selected probes connect to the selected camera (top or bottom) and the activation of the discharge channel for the sample.

Valve manifold 4 allows selected to throw the fluid from the chamber or in the main pipe through one of the selected probes SP1, SP2, SP3 or SP4, or into the exhaust channel for sample 5 for further use (direct analysis or transport cylinder).

Valve manifold 4 can manually control the operator depending on the indication provided by the phase detector or the control unit (not shown) in the automatic or semi-automatic mode. The control unit can open or close p is lichnye valves and to control the movement of the piston in accordance with the measurement conducted a phase detector and programmed phase, which is mainly subject to selection.

The device 1 for sampling contains the device 6 to control the temperature to maintain the selected camera 3 and the valve manifold 4 at the temperature of the multiphase mixture fluid FF flowing in the main pipe FL. The device 6 for controlling the temperature includes a heat insulator (not shown). Insulator allows the valve manifold and select the camera to use heat, portable selected fluid medium through a different connection.

Device for temperature control may also include a heating device and a temperature controller (not shown). This alternative is applicable in the case when a very important temperature gradient between the main pipe and selected by the camera due to insufficient heat transfer.

In addition, the piston 7A and 7D drive piston can be insulated from the chamber by the heat insulator 7C of the piston. Mainly insulator is a special connection materials.

Device for temperature control allows you to maintain the sample fluid at the same temperature, which is a multiphase mixture of fluid flowing in the main pipe, in order to avoid mass transfer between different phases in accordance to the laws of thermodynamics.

Mostly all wetted parts in devices for taking samples made of the proper alloy for best chemical resistance and inertness, and better mechanical strength. The maximum working pressure and temperature depend on the application, for example, in the oil industry, the sampling device operates at pressures up to 700 bar and temperatures up to 150C.

The above-described device for sampling works as follows.

After you connect the device for sampling to the main pipe hydrocarbon wells in the first stage, the sampling operation. At first, all the valves are closed. In the operation of sampling selected in the main sample of the fluid enriched in the selected phase of the multiphase mixture fluid flowing in the main pipe. Depending on which phase is selected for selection, choose a specific selective probe of the four selected probes SP1, SP2, SP3, SP4. The choice of the selected probe is valve manifold 4. For example, for selection of the sample fluid, enriched gas, choose selected probe SP1 for gas, opening a gas selected valve V1, for selection of the sample fluid, enriched with oil, choose an average SP3 and/or upper SP4 selected probe, opening with the NGOs selected average valve V3 and/or the upper selective valve V4, for selection of sample fluid enriched water, choose the bottom choice probe SP2, opening the lower selective valve V2.

However, depending on the flow regime prevailing in the main pipe, and the configuration of the pipe, each of the probes SP2, SP3, SP4, facing the stream, you can choose to select basically this heavy phase (fluid-enriched water, or fluid, enriched with oil).

Selected probe SP1 for gas is located at the top of the pipe and in accordance with the direction of flow will be used for selection in the main fluid enriched gas. Due to differences in density, and therefore, the internal forces between a liquid and a gas selected probe SP1 for gas takes more gas, since the liquid will not easily change its direction of flow.

At this first stage valve V5 of the upper channel also preferably opens, enabling the selected fluid to flow into the chamber 3 through the upper channel 3A. An alternative may open valve V6 lower channel, enabling the selected fluid to flow into the chamber 3 through the lower channel 3B. Alternative can break off valves both channels, enabling the selected fluid to flow into the chamber 3.

Simultaneously, the piston 7A is moved back to the suction of the selected fluid in the chamber. Preferably the piston d is izhitsa with speed, which provides a low pressure drop between the main pipe and Luggage.

Therefore, in the first stage, the selected fluid is transferred from the main pipe into the selected chamber with minimal pressure drop.

At the first stage of the phase detector is used to control type phase fluid flowing in the selected cell.

In the second stage, the selected fluid present in the chamber, enriched with the selected phase. This is due to the suction of the selected fluid in the selected chamber and discharge the unnecessary phase back into the main pipe. The selected fluid is sucked into the selected camera is deposited with the formation of the layer under the action of gravity. Preferably, the sampling device operates in a vertical position to strengthen the gravitational segregation of the different phases. In particular, the heavy phase (e.g., fluid environment WE enriched water) settles to the bottom of the channel 3B through the annular opening 9 between the piston 7A and the wall of the chamber 3, while the lighter phase (e.g. phase GE-enriched gas, and/or phase OE enriched oil remains near the top of the camera. Unnecessary phase dumped back into the main pipe or through the upper channel 3A, or through the bottom channel 3B depending on their density relative to the selected phase. The reset operation is butanediamine piston 7A up in the chamber 3 and the opening of the corresponding channel of the valve V5 or V6. Unnecessary phase is discharged into the main pipe FL through one of the selected probes SP1, SP2, SP3 or SP4 through the valve V1, V2, V3, or V4.

These steps can be repeated in an iterative process for the accumulation of a significant or sufficient volume of sample fluid enriched in the selected phase, the selected camera. The phase detector can be used for perception of the type of fluid leaving the selected camera, and definitions, full choice Luggage mainly selected phase, in order to be selected.

In the General case, the selection of the fluid enriched in this phase, the flow of the multiphase mixture fluid is impossible as such due to the variety of flow conditions and relations between the phases encountered. However, the flow in the pipeline there is always the position where the phase is mainly present. Thus, the correct choice of the selected probe can reduce the number of iterations for the enrichment of selected fluid this phase.

In the third phase, a known volume of sample fluid enriched in the selected phase is expelled through the exhaust channel to an external device (for example, transport vessel, the analyzing device). This is done by opening the exhaust valve V7 and one or both of the upper V5 and V6 lower channel Klah the ANOVA and move the piston 7A up in the chamber 3. The phase detector can be used for perception of the type of fluid emerging from the selected camera, and confirm that it matches the selected phase, in order to be selected.

At this stage, the sample is maintained under conditions of temperature and pressure main pipe. This avoids mass transfer between different phases according to the laws of thermodynamics.

Preferably the pressure is maintained at the pressure valve in the main pipe due to the fact that it remains an open connection through the selected probe during the whole process, while in the camera there is more than one phase (during the selection process or reset). Pressure control during the transfer of the selected fluid medium with the selected phase adjustment is carried out manually or automatically by adjusting the speed of the piston 7A and the hole exhaust valve V7.

According to the above variant of implementation of the device for sampling contains four selective probe for the selection of different phases. However, from the above principle of operation of specialists in this field it is clear that the selected pipe may contain less or more selected probes, but at least one selected probe. In particular, in order of alternative (not shown) selected pipe may contain one selected probe having an adjustable position along the height of the boric pipe. This is one selected probe, connected to the phase detector, allows for selective probe in position in the pipe for the preferential selection of the fluid enriched in this phase.

One probe can actively post in the correct phase by means of the actuator with hydraulic or mechanical control depending on the signal of the phase detector.

Although the device for sampling has been described with reference to a specific example, consisting in the selection of a large volume of sample water, oil or gas flowing in the main pipe after the wellhead on the surface, it obviously can be used in other types of applications, for example in the underwater field, or in the pipeline, or in conjunction with the multiphase flow meter and so on

Described the particular application of the invention in the oil industry. However, the invention is applicable also to other industries where it is necessary to analyze the specific phase of the multiphase mixture fluid flowing in the main pipe (for example, in the food industry, chemical industry and so on).

The drawings and the above description illustrate, but not limit the invention.

Any symbol in the claims should not be considered in the order of its limitations. The word "comprising" does not exclude on the ice other elements in addition to those listed in the claims. The use of an element in the singular does not exclude the presence of a combination of such elements.

1. The device (1) for sampling the fluid enriched in the selected phase of the multiphase mixture fluid (FF)flowing in the main pipe (FL) and containing at least the selected phase and another phase containing the selected fixture (2, SP1, SP2, SP3, SP4) for selection of sample fluid from the multiphase mixture fluid (FF)flowing in the main pipe (FL), select the camera (3)having a variable volume for collecting a sample of fluid from a multiphase mixture of fluid and software bundle under the action of gravity of the sample fluid to the fluid enriched in the selected phase, and the fluid enriched in at least one phase, and the valve manifold (4)connecting the selected device to select the camera (3) for the direction of sample fluid into a sampling chamber (3) and the direction of the fluid enriched in the selected phase in the outlet channel (5) for the sample and the fluid enriched in the other phase, back to the main pipe (FL).

2. Device for sampling according to claim 1, which further comprises a device (6) for controlling the temperature to maintain the selected camera (3) and valve manifold (4) at the temperature of the multiphase mixture fluid (FF)in CH the main pipe (FL).

3. Device for sampling according to claim 2, in which the device (6) for controlling the temperature includes heat insulator, the heating device and the temperature controller.

4. Device for sampling according to any one of the preceding paragraphs, in which the selected device contains selected pipe (2), adapted for connection with the main pipe (FL), and containing at least one selected probe (SP1, SP2, SP3, SP4), select the camera (3) has a variable volume and contains the upper channel (3A) and the lower channel (3B), and valve manifold (4)connecting the selected probe with camera and having a discharge channel (5) for the sample to ensure a fluid medium, enriched the selected phase contains at least one valve (V1, V3, V3, V4) of the probe, connecting the selected probe to the detector (8) phase, the valve (V5) of the upper channel, connecting the phase detector to the upper channel, the valve (V6) bottom channel connecting the phase detector to the lower channel, and an exhaust valve (V7), connecting the phase detector to the exhaust channel for the sample.

5. Device for sampling according to any one of claims 1 to 3, in which the selected chamber contains a piston (7A), and there is also a drive (7D) of the piston to move the piston in a selected chamber (3), and a variable volume of this chamber is defined by the position of the piston in it.

6. The device for selecting the sample further machining work : what according to claim 5, in which the piston (7A) is separated from the wall of the selected camera (3) a circular hole (9) to ensure the flow of the fluid present in the chamber, to the lower channel (3B).

7. The sampling device according to any one of claims 1 to 3, 6, in which the selected pipe (2) further comprises a lower selective probe (SP2), located in the lower part of the selected pipe, medium selective probe (SP3), located in the Central part of the selected pipe, the upper selective probe (SP4), located in the upper part of the selected tubes, and upper, middle and lower selective probes directed to the flow of the multiphase mixture flowing environments.

8. Device for sampling according to any one of claims 1 to 3, 6, in which the selected pipe (2) further comprises a selective probe (SP1) for gas, located in the middle part of the selected pipe and oriented in the opposite direction relative to the lower, middle and upper selective probes (SP2, SP3, SP4).

9. Device for sampling according to any one of claims 1 to 3, 6, in which the selected pipe (2) further comprises a selective probe (SP1) for gas, located in the upper part of the selected pipe and oriented in the opposite direction relative to the lower, middle and upper selective probes (SP2, SP3, SP4).

10. Device for sampling according to any one of claims 1 to 3, 6, in which the selected pipe contains one selected probe, keyserialnumber position in the selected pipe.

11. Device for sampling according to any one of claims 1 to 3, 6 in which the detector (8) phase represents the optical phase detector.

12. Device for sampling according to any one of claims 1 to 3, 6, which further comprises a sensor for measuring the volume of the selected camera.

13. Device for sampling according to item 12, in which the sensor measures the position of the piston in the selected cell.

14. The method of sampling fluid enriched in the selected phase of the multiphase mixture fluid (FF)flowing in the main pipe (FL), connected with a device for sampling a fluid medium according to any one of claims 1 to 13, containing the following steps:
the first stage, containing the steps of selection of sample fluid from the multiphase mixture fluid connection one selected probe to the selected chamber and increase the volume of the chamber, and the software bundle under the action of gravity of the sample fluid in the selected camera on the fluid enriched in the selected phase, and at least one fluid medium, enriched with unnecessary phase,
the second stage, containing the steps of draining at least one fluid medium, enriched with unnecessary phase back into the main pipe, the connection selected camera with one selected probe and reducing the volume of the chamber, the repetition of the first and second stages to obtain a given amount of fluid, about ashenai selected phase, in the selected cell, and
the third stage of ejection of the fluid enriched in the selected phase from the camera by connecting the camera to the exhaust channel and decrease the volume of the chamber.

15. The method of sampling at 14, which further comprises the step of maintaining the device for sampling at the temperature of the multiphase mixture fluid (FF)flowing in the main pipe.

16. The method of sampling at 14 or 15, which further comprises the step of monitoring the phases of the fluid flowing in the selected cell and deriving from it.



 

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3 dwg

FIELD: medicine.

SUBSTANCE: ejaculate is dissolved at 1:10-1:20 ratio by saline, fixated by 2.5% glutaric aldehyde solution. Obtained fixated material in the form of fixation agent drop with sediment cells suspended after resuspension is applied onto aluminium foil degreased preliminarily, incubated in humid chamber at room temperature for 2535 minutes, the foil with attached cells is flushed by 0.1 M phosphate buffer with pH 7.2-7.4, with further fixation in 1% osmic fixation agent and dehydration. Then the foil with cells is placed to saturated uranyl acetate solution in 70% ethanol and incubated in closed test tube for 12-14 hours. Afterwards the sample is dehydrated and filled by epoxy resin, after resin polymerisation the foil is separated from obtained epoxy resin plate with spermatozoids on its surface.

EFFECT: possible examination of single spermatozoids in samples with very low concentration and obtainment of ultra thin oriented sections of spermatozoids.

FIELD: physics.

SUBSTANCE: method involves determining number of samples, lowest permissible weight of a sample, taking samples from a mixture, finding concentration of the key component in the sample, calculation of the coefficient of irregularity of the mixture. When finding concentration of the key component, contents of the sample are first distributed in a uniform layer on a smooth surface, photographed and scanned. The image is processed using a computer and the image is presented in form of an array of numbers, each element of which is expressed by a pixel, value of which corresponds to the colour of the component. The range of pixel values is then selected and all pixels in that range are assigned the key component, and the other pixels - another component. Pixels corresponding to each component are counted and concentration of the key component, from which the coefficient of irregularity is calculated, is determined.

EFFECT: design of a fast method of determining coefficient of irregularity of a mixture of components which are difficult to separate.

FIELD: medicine.

SUBSTANCE: invention concerns medicine, particularly to pathomorphology. To estimate endometrium hormonal alteration in secretory phase of menstrual cycle, endometrium scrape is analysed for vessels, stroma, glands and epithelial component within histological study. The obtained data are compared to a reference morphological picture of any given stage of secretion phase. Morphological changes are estimated in a certain order - volume of material, dividing compact and spongy layers with characterising vessels, stroma, glands, and glandular epithelium. Further, considering match or mismatch of the obtained results with the reference, an individual histogram is prepared with reflecting presence and evidence of the signs listed above. Then match of morphological changes in the given period of menstrual cycle is concluded in terms of quantity in percentage of manifestation of any given phase stage of endometrium secretion.

EFFECT: method improves accuracy and objectivity of histomorphological assay of scraping from uterus cavity with specifying the quantitative criteria of endometrium transformation that is required to estimate functional adequacy of endometrium hormonal alteration in various menstrual dysfunctions, sterility - and degree of change within therapeutic actions.

2 ex, 2 tbl

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to oncology, pathomorphology. Differential diagnostics of tumours from peripheral nerve sheaths is ensured by analysing the results of excised soft tissue tumour morphology. At first, a neoplasm is considered to belong to tumours from nerve sheaths by specified criteria, and then differential diagnosis between nosologic forms making the given group follows. Values related with morphological signs, as tumour size, surrounding tissues border, tumour composition, histological pattern, cell morphology, malignance signs, axon presence, tumour stroma, secondary changes and immunohistochemical cell profile are specified and summarised. The greater amount of any given value indicate the diagnosis: A - neurofibroma, B - neuroschwannoma, C - perineurinoma, D - malignant tumour from peripheral nerve sheaths, A=B - hybrid neurofibroma and neuroschwannoma, A=C - hybrid neurofibroma and perineurinoma, B=C - hybrid neuroschwannoma and perineurinoma.

EFFECT: method improves diagnostic accuracy of tumours from peripheral nerve sheaths and ensures reduced time required for pathomorphological resolution due to detailed task-specific morphology of neoplasm characteristics.

3 dwg, 3 ex, 3 tbl

FIELD: physics.

SUBSTANCE: invention relates to a method of taking concretion samples from a sea shelf and a device for realising the method. The method involves sinking a vessel to the bottom of a water body from a waterborne vehicle, taking a sample from the bottom of the water body and raising the vessel to the waterborne vehicle. Samples are taken at the same time using vessels, equally spaced out in a horizontal plane and joined into a single unit. After raising the vessels, the samples are put into containers which are marked with relative position of the vessels, and the contents are analysed on quality, quantity and concretion distribution on the bottom surface of the water body, determined by the number vessels in the unit. The device has a vessel with intake and locking apparatus. The device is fitted with several vessels, equally spaced out in a horizontal plane, in form of vertical pipe sections mounted on a rigid rectangular frame. Triangular flap doors which be swung up are hinged to the bottom inner surface of the pipes, adjacent to each other, and can be held in the horizontal position while covering the cross sectional area of the pipes and can swing down. Top openings of the pipes are covered by airtight covers with connecting pipes, joined by flexible tubes with a controlled shut-off valve. The cross section of each pipe is such that, at least two concretion samples of maximum size can be accommodated. A vibrator is mounted at the centre of the frame.

EFFECT: possibility of quantitative evaluation of output of a concretion deposit per unit area of the bottom surface and evaluation of distribution of particle composition of concretion on that area.

4 cl, 5 dwg

FIELD: instrument making.

SUBSTANCE: invention is related to autonomous sampler of bottom water. Autonomous sampler comprises stem with float fixed on its upper end, ballast chamber, installed in medium part of stem and arranged in the form of conic bottom inverted by top to the side of float, and side surface with traction rods. Sampler is equipped with compression spring installed with the possibility of interaction with support ring fixed on stem, and tight vessel for water sampling. Sampler comprises washer installed above support ring with the possibility of displacement along stem, between which and support ring there is a compression spring. It also comprises cams installed with the possibility of rotation in vertical plane, fixed tangentially to stem section and having mouth on side surface and protrusion in lower parts. Cams interact by their protrusions with washer, which is spring-loaded relative to stem and is arranged in the form of diaphragm with openings and support plate fixed by braces with gap in between. Sampler is equipped with stands fixed on stem and installed in diaphragm openings with shelf fixed on their lower ends, which is installed between diaphragm and plate, and plug for vessel, installed on shelf, which is fixed on lower plane of diaphragm. At the same time ballast chamber is installed with the possibility of displacement along stem, and its side surface is arranged in the form of sectors hingedly installed on large base of conical bottom. Traction rods of ballast chamber are arranged in the form of flexible links fixed on sectors and having ring on free end.

EFFECT: by means of flexible links, chamber is freely suspended in mouth of cams, with the possibility of disconnection in extreme lower position of cams in position of chamber unloading from ballast.

1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a unit for producing biogas in a laboratory. The said unit has a flask with a tightly closing rubber stopper with an outlet glass pipe and a collapsible container for receiving gas. The flask is in form of a bioreactor, which is a glass cylinder with a ground stopper. In the bottom part of the cylinder there is a glass filter and a pipe for outlet of the formed biogas, which is connected in series to an adsorber, rotametre and sampler for taking samples of the biogas for chromatographic analysis.

EFFECT: wider functional capabilities of the laboratory unit, increased certainty of test results of biogas, detecting level of effect of factors on the process of formation of biogas, as well as reduced moisture content of the formed biogas.

1 dwg 1 tbl

FIELD: oil-and-gas production.

SUBSTANCE: sampler, consisting of system of fluid sampling, includes sampling valve and storage of fluid sample, electrohydraulic system. Electrohydraulic system is implemented as logical for fixation and unlock of sampler in well, which includes electric motor, connected to pump, which is connected to the first distributor through return valve, with filter, with safety valve and with the second distributor, connected to valve of sampling and storage of fluid sample, and also to the first, to the second, to the third and to the fourth sensor - pressure limit switch, the first distributor is connected parallel to head end of the first hydraulic ram, of the second hydraulic ram and the third hydraulic ram, stocked cavities of which are connected to third distributors, hydraulic accumulator, to the fifth sensor - pressure limit switch and to the fourth distributor.

EFFECT: reliability enhancement of sampler operation, improvement of automation of sampling and extension of capabilities.

1 dwg

Depth sampler // 2360109

FIELD: mining.

SUBSTANCE: depth sampler consists of ballast chamber, of actuator with module of control, of main and additional sample taking chambers equipped with medium-separating pistons, hydro-resistors and valve units. Each medium-separating piston is equipped with a compensating tube, which connects under-piston cavities of sampling chambers between them. Also hydro-resistor is assembled at the end of each tube.

EFFECT: simplification and upgraded efficiency of operation of units of device, decreased dimensions of sampler, improved quality of separation of taken samples, and validity of measured information.

1 dwg

FIELD: physics, measurements.

SUBSTANCE: proposed set of inventions relates to oil product, particularly, to getting and analysing the samples of in-place fluid medium. The proposed method comprises the steps that follow. First, optical density data on fluid medium sample is obtained for, at least, one-colour channel, water channel or a set of optical channels by measuring wavelength optical density with the help of fluid medium analyszer, and, at least, in one channel of fluid medium component to determined the fluid medium composition or properties with the help of fluid medium downhole sampler furnished with optical pickup. The colour absorption function is defined based on optical data for fluid medium sample in, at least, one colour channel. The part of optical density subject to color absorption, absorption in water in, at least, one aforesaid channel of fluid medium component. The electronic system designed to refine the data on the fluid medium sample incorporates an input device, memory coupled with input device and memory.

EFFECT: accurate data on fluid medium sample resulted from elimination of colour, water and scattering effects.

25 cl, 13 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil-and-gas industry and can be used in analysing fluid dynamics of gas medium at hydrocarbons deposits and subterranean gas storages. The proposed method comprises forcing gas medium indicator marks representing gas-filled micro granules with the dispersion degree of 0.5 to 0.6 into the bench through different injection holes and sampling from output holes. Note that indicator mark sampling is realised by forcing gas through sampling tube along with controlling gas passing time and the hole rate of yield, the sampling tube gas flow rate is determined from mathematical expression. The content of micro particles in indicator mark is determined from mathematical expression. The invention covers also the device to embody the above-described method.

EFFECT: continuous sampling, higher sampling efficiency and validity of results.

3 cl, 1 ex, 2 dwg

FIELD: mining.

SUBSTANCE: device contains receiving chamber for samples, pump, communicating with chamber, pressure measuring device, communicating with sample and optical analyser, optically connected with sample; device and analyser facilitate pressure drop in sample and determine pressure which provides extremum of light amount passing through sample.

EFFECT: preventing precipitation of hard substances and bubbling during sampling.

19 cl, 27 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention refers to transporting samples of fluid mediums and/or rheological measurements to surface of division. According to one of versions the method consists in circulating heated fluid medium in the first region of the reservoir bed wherein a composition of heavy oil is present or considered present with implementation of a pump assembled on the surface and an installation for well completion containing a well pump and a sampling tool within the period of time and at consumption adequate for obtaining fluid composition of heavy oil; then sampling of fluid composition of heavy oil is performed by means of the sampling tool.

EFFECT: facilitation of sampling from reservoir bed by means of device or its part used for supply of heat into reservoir bed region in question.

20 cl, 14 dwg

FIELD: mining.

SUBSTANCE: method consists in pumping-out fluid from rock with pump assembled in well and in measuring fluid pressure and volume during pumping out by means of sensors arranged in well. Also during pumping out the pumped out volume is registered, rate of fluid inflow is evaluated on the base of measurements of pressure and volume and such rate of fluid pumping out is set that facilitates flowing of fluid practically in one-phase state.

EFFECT: determination of quality and structure of stratum fluid.

24 cl, 20 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention refers to subsurface sampling and specifically to continuous measurement of concerned parameters, as well as hydrocarbon sample analysis performed on sampling point after installed in sampling chamber of the downhole device. The device contains downhole sampling chamber for formation fluid sample and control module connected by fluid channel to a part of formation fluid sample in downhole sampling chamber and designed to control concerned parameter of formation fluid sample. Besides method for controlling concerned parameter of formation fluid sample is offered.

EFFECT: provided continuous control of sample integrity including sample surfacing to its delivery to analysis laboratory.

23 cl, 4 dwg

Subsurface sampler. // 2347906

FIELD: oil and gas industry.

SUBSTANCE: invention is applicable to the oil industry and particularly to equipment used for formation testing in oil production. The sampler consists of a cylindrical housing containing a sampling module that includes a flow-type sample receptacle, valve gear, and magnetic separator strainer; hydraulic drive module including a cylindrical chamber, ballast chamber, piston, push rod, and solenoid valve; electronic module including power supply unit and set of physical metering sensors connected with an electric recording circuit. The solenoid valve is located inside the piston of the hydraulic drive module; the sampling module is additionally fitted with a sealed chamber with one end connected to the rod and the other end connected to the valve gear; and the electronic module is additionally fitted with a piston proximity sensor.

EFFECT: better quality of information measured, as well as simplified and more reliable operation of mechanism components.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil and gas industry, in particular, to procedure of fluid and gas sampling in wells. Device consists of cylindrical casing, where the following components are installed: sample receiving chamber of suction type with separating piston, ballast chamber, module of control and information exchange interface. The following components are introduced into cylindrical casing between sample receiving and ballast chambers, leakproof relative to environment, serially connected downstream sample receiving chamber: uncontrolled adjustable reduction gear of fluid pressure and hydraulic relay controlled by electric current that is supplied from module of control and information exchange interface, which uses elastic mechanic oscillations excited on device body and noise-immune coding of information for control of device operation, and also for communication to personal computer.

EFFECT: increase of device operation reliability, monitoring of sample receiving chamber opening and time of its filling with fluid, expansion of equipment operation thermobaric range, provision of sample transport safety.

5 cl, 1 dwg

FIELD: oil and gas extractive industry.

SUBSTANCE: method includes picking a sample of bed fluid under pressure by means of pump. Sample of fluid is then compressed by moveable piston, actuated by hydrostatic pressure in well through valve. Compressed sample of bed fluid is contained under high pressure inside the chamber with fixed volume for delivery to well surface. Moveable piston is in form of inner and outer bushings, moveable relatively to each other. At the same time several tanks for picking samples from several areas may be lowered into well with minimal time delays. Tanks may be emptied on well surface by evacuation pressure, to constantly provide for keeping of pressure of fluid sample above previously selected pressure.

EFFECT: higher reliability.

6 cl, 14 dwg

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