Sampling device

FIELD: oil and gas industry.

SUBSTANCE: sampling device contains a main pipeline, a sampling section joined with the main pipeline with a possibility of sampling with coverage of liquid flow cross section, a sampling tap and a manometer. The sampling tap is designed as housing and bushing which is rigidly joined with a handle, and in a starting position the bushing shuts a drain hole of the housing, and the handle can move together with the bushing, opening the drain hole of the housing in working position. The hollow cylinder with the central channel is installed in the main pipeline, and the hollow cylinder from side of liquid flow movement is fitted with the input cone tapering the flow and the output cone expanding the flow on the other side of the hollow cylinder. The whirler fitted inside with tangential channels is installed in the central channel of the hollow cylinder from the input cone. The bushing of the sampling tap covers hermetically from outside the housing with the drain hole and can move restrictedly in axial direction with reference to the housing. The housing has the first and second external cylindrical grooves and the cutting spring lock ring is located inside. The bushing is fitted with internal ring sampler.

EFFECT: improvement of quality of liquid sampling, improvement of operational reliability of the sampling tap and increase of level of correctness of identified process parameters of wells and layers according to analyses of samplings.

2 dwg

 

The invention relates to the production, collection, preparation and transport of liquid and gas products and can be used in the oil and gas industry where you work on sampling fluid from the pipeline.

Known sampling device (patent RU №2298096, IPC EV 49/08, G01N 1/10, publ. in bul. No. 12 dated 27.04.2007) containing the main pipeline, the sampling section attached to the main pipeline with the possibility of sampling covering the cross section of fluid flow, selective valve, pressure gauge, characterized in that the sampling section at the inlet of the fluid flow inside the main pipe is provided with a pipe with radial holes placed against the fluid flow, with a beveled upper end, with the cut of the beveled upper end is placed on the opposite radial side holes of the nozzle, and the nozzle in the main pipeline is installed, narrowing the stream, and select the crane is made in the form of a spring-loaded relative to the sampling section of the gate-core housing with a drain hole and a coil, and the gate-core sealingly mounted within the housing, made of a dielectric material, and the coil is located on the housing, wherein in the initial position, the gate-core overlaps the drain hole of the housing and in working� under the influence of an electromagnetic field, created by the coil when it is applied to the electric current, has the possibility of axial movement within the housing, compressing the spring and opening the drain hole of the housing.

The disadvantages of this device are:

- first, the low quality of the samples, which do not allow to reliably determine the cut because the sampling occurs through the beveled upper end of the pipe, which may not provide full coverage around the perimeter of the cross section of layered fluid flow in the pipeline, therefore, through the beveled upper end of the tube in the sampling section fall outside of the faction, located on the periphery of the main pipeline and, as a result, distorted volume flow fractions of the phases (water, oil) in the stream;

- secondly, the low reliability of selected tap in the work associated with a high probability of failure of the gate-core, creativeimage under the influence of an electromagnetic field generated by the coil when it is applied to the electric current;

- thirdly, the low level of accuracy determined by the technological parameters (reservoir pressure, bottomhole pressure, productivity index) wells and reservoirs by analyses of samples taken;

- fourthly, the presence of a source of electric current for opening (closing) of selected crane.

Also known as�STN sampling device (RU patent for useful model No. 40391 IPC 7 E21B 49/08, F17D 3/10, publ. in bul. No. 25 dated 10.09.2004) mounted on the main pipe and is made in two sections, fastened to the main pipe by means of flange connections, and provided with adjustable three-way ball valves, selected valve and manometer, three-way ball valve shaft connected with the control lever alternately with the ability to cut off one of the sections, and each section is arranged to pass the entire flow of fluid, and one of the sections is a bypass and the other sampling (measuring) with sampling covering the cross section of fluid flow without losses.

The disadvantages of this device are:

- first, the design complexity, due to the large number of units and details, as well as the complexity and intensity;

- secondly, with frequent sampling of the items selected tap wear out and it loses integrity, thereby reducing the service life of the device as a whole and requires a revision of the sealing elements selected crane or replacement;

- thirdly, the low quality of the samples, which do not allow to reliably determine the water cut of the product;

- fourthly, the low degree of correctness is determined by technological parameters (reservoir pressure, bottomhole pressure,productivity index) wells and reservoirs by analysis of sampling.

The closest in technical essence and the achieved result is a sampling device (patent RU №2292514, IPC F17D 3/10, publ. in bul. No. 3 dated 27.01.2007 city) containing the main pipeline, the sampling section attached to the main pipeline with the possibility of sampling covering the cross section of fluid flow, selective valve, pressure gauge, wherein the sampling section at the inlet of the fluid flow inside the main pipe is provided with a pipe with radial holes placed against the fluid flow, with a beveled upper end, with the cut of the beveled upper end is placed on the opposite radial side holes of the nozzle, and the nozzle in the main pipeline is installed, narrowing the stream, and the selected tap is made in the form of a sleeve, rigidly connected with the handle and sealingly mounted within the housing, is provided with a through a horizontal slot through which is passed above the handle, wherein in the initial position the sleeve covers the drain hole of the housing, and the handle by means of the support ring is spring-loaded relative to the housing and has the possibility of axial movement together with the sleeve, opening the drain hole of the housing in the working position. The disadvantages of this device are:

- first, the poor quality of General relativity�early samples which do not allow to reliably determine the cut because the sampling occurs through the beveled upper end of the pipe, which may not provide full coverage around the perimeter of the cross section of layered fluid flow in the pipeline, therefore, through the beveled upper end of the tube in the sampling section fall outside of the faction, located on the periphery of the main pipeline and, as a result, distorted volume flow fractions of the phases (water, oil) in the stream;

- secondly, the low reliability of selected tap in the work associated with a high probability of breakage of the spring compression under alternating loads (opening and closing of selected crane);

- thirdly, the low level of accuracy determined by the technological parameters (reservoir pressure, bottomhole pressure, productivity index) wells and reservoirs by analysis of sampling.

The technical objective of the proposal is to improve the quality of samples of liquid, improving the reliability of selected tap in the work and increase the degree of correctness is determined by technological parameters of wells and reservoirs by analysis of sampling.

The stated technical problem is solved by sampling device comprising a main duct, a sampling section, is fixed with the main drobopro�house with the possibility of sampling covering the cross section of fluid flow, select a valve and a pressure gauge, wherein the sampling section at the inlet of the fluid flow inside the main pipe is provided with a pipe, with the gauge installed on the nozzle in front of the select valve, and the pipe in the main pipe is installed, narrowing the stream, select the tap is made in the form of casing and sleeve, rigidly connected with the handle, wherein in the initial position the sleeve covers the drain hole of the housing, and the handle is movable together with the sleeve, opening the drain hole of the housing in the working position.

What is new is that in the main pipeline installed hollow cylinder with a Central channel, wherein the hollow cylinder by the flow of liquid is equipped with an inlet cone, narrowing the stream, and the output cone that extends the thread from the other side of the hollow cylinder, wherein the Central channel of the hollow cylinder from the front of the cone is set swirler supplied inside tangential channels, wherein the swirler opposite the entrance cone slitted and provided with radial grooves, and in the Central channel of the hollow cylinder for swirler placed the nozzle of the sampling sections for the entrance of fluid flow communicating with the selected tap, in this case the sleeve is selected crane hermetically covers the outside body with a drain hole and who has�agnosti limited axial movement relative to the housing, wherein the casing includes first and second outer cylindrical grooves, and the sleeve has an internal annular sample, in which is placed a split retaining ring, and in the initial position, the split retaining ring is fixed to the first outer cylindrical recess of the housing and has the ability to compress a split spring retaining ring into the inner ring sample sleeve in an axial displacement of the sleeve relative to the housing and fixing the split spring locking ring to the second outer cylindrical recess in the housing in the working position.

Figure 1 shows the proposed sampling device.

Figure 2 shows a section a-a proposed sampling devices.

The sampling device comprises a main duct 1 (see Fig. 1), the sampling section 2 secured to the main pipe 1 with the possibility of sampling covering the cross section of fluid flow, select the tap 3 and the 4 gauge.

The sampling section 2 and the inlet of the fluid flow inside the main pipe 1 is provided with a pipe 5.

The pressure gauge 4 is mounted on the pipe 2 in front of the select crane 3 and the pipe 2 in the main pipeline 1 device, narrowing the stream, 6.

Select the crane 3 is in the form of the housing 7 and the sleeve 8, getcashadvance with arm 9. In the initial position the sleeve 8 overlaps the drain hole 10 of the housing 7 and the arm 9 is movable together with the sleeve 8, opening the drain hole 10 of the housing 7 in the working position.

In the main pipeline 1 is mounted a hollow cylinder 11 with a Central channel 12. The hollow cylinder 11 by the flow of liquid is equipped with an inlet cone 13, narrowing the stream, and the outlet cone 14 that extends the thread from the other side of the hollow cylinder 11.

In the Central channel 12 of the hollow cylinder 11 from the side of the inlet cone 13 is set swirler 15 (see figs 1 and 2), are supplied inside a tangential channels 16. For example, the swirler 15 is in the form of a Cup, which is placed tangential channels 16 formed in the form of an auger with tangential blades.

Swirl ring 15 opposite the inlet cone 13 slitted and provided with radial grooves 17. In the Central channel 9 (see Fig. 1) a hollow cylinder 8 varicela 15 is placed in the sampling pipe 5 section 2 for the entrance of fluid flow communicating with the selected tap 3.

Bushing 8 selected crane 3 by hermetically sealing rings 18 covers the exterior of the body 7 with a drain hole 10 and has the possibility of limited axial movement relative to the housing 7.

The housing 7 is equipped with first and second outer cylindrical grooves 19 and 20 of suitable�NGOs, and the sleeve 8 has an internal annular sample 21, in which is placed a split retaining ring 22, for example, of circular cross-section.

In the initial position, the split retaining ring 22 is fixed to the first outer cylindrical recess 19 of the housing 7 and has the ability to compress a split spring retaining ring 22 in the inner ring sample 21 of the sleeve 8 in the axial displacement of the sleeve 8 relative to the housing 7 and fixing a split spring retaining ring 22, the second outer cylindrical recess 20 of the housing 7 in the working position.

The sampling device operates as follows.

In the process of movement on the main pipe 1 (see Fig. 1 and 2) fluid flow, reaching the hollow cylinder 11, through the inlet cone 13 narrows and goes to the swirler 15. The flow of fluid through the radial grooves 17 of the swirler 15 is adjudged to be in tangential channels 16, which is twisted. The result is a turbulence of fluid flow and due to the centrifugal force of the mixed liquid phase moves along the peripheral portion of the Central channel 12 of the hollow cylinder 11 behind the swirler 15. In the Central channel 12 (see Fig. 1) a hollow cylinder 11 behind the swirler 15 the liquid stream is mixed and when closed, select the tap 3 of the sampling section 2 is divided into two areas:

first, santralleri channel 12 of a hollow cylinder 11 through the outlet cone 14, the fluid flow expands and enters the main pipeline 1, and then in the device, narrowing the stream, 6 and then again in the main pipeline 1 for the sampling section 2;

- second, through a pipe 5, the liquid stream flows down and into the sampling section 2, where, filling the inner space of the fluid flow and the tube 5 is selected for the crane 3, and again flows into the main pipe 1 with the device, narrowing the stream, 6 and connects with the flow moving in the first direction.

When you are constantly running from the storage tank 1, the flow of the liquid covering its entire cross section in two directions and sampling section 2 is constantly filled breakdown of fluid with a composition corresponding to the time and conditions of its selection without the formation of stagnant zones.

The 4 gauge is installed in the sampling section 2 for the purpose of pressure control in the operation and sampling.

Sampling is as follows.

Open the selected crane 3 by physical action on the handle 9 in the direction of the second outer cylindrical ducts 20 of the housing 7, while the split retaining ring 22, which is in the initial position in engagement with the first outer cylindrical groove 19 of the housing 7, is compressed in the inner ring sample 21 of the sleeve 8 and out of engagement with the first outer cylindrical groove 19 of the housing 7.

For arm� 9 moves the sleeve 8 relative to the fixed housing 7 as long while the split retaining ring 22 radially to uncoil and engages with the second outer cylindrical groove 20 of the housing 7, in which a split retaining ring 22 is fixed, occupying a working position.

At some point, during the movement of the sleeve 8 relative to the fixed body 7 opens the drain port 10 of the housing 7 selected tap 3, while the pressure drop over the device, narrowing the stream, 6, due to the occurrence of the negative pressure due to the opening of the discharge hole 10 of the housing 7 selected crane 3. As a result the entire flow of fluid from the Central channel 12 of a hollow sleeve 11 is directed in a second direction, i.e. the flow is then directed only at the sampling section 2 through conduit 5 and the housing 7 selected tap 3 through the drain hole 10 of the housing 7 selected crane 3 is discharged into the container (Fig. 1 and 2 not shown), designed for sampling.

Stratified liquid phase, moving across the cross section of the main pipe 1 (see Fig. 1), due to the presence of centrifugal forces (tangential channels 16 in the swirler 15) is mixed in the Central channel 12 of the hollow cylinder 11 and the agitator 15 and moves along the peripheral portion of the Central channel 12 of the hollow cylinder 11, so when sampling through the sampling pipe 5 Secchi in the container for sampling gets mixed liquid, and not stratified liquid phase, as described in the prior art, which allows to have a high degree of identification of samples with the real volume flow fractions of the phases (water, oil) in the stream.

According to the analysis of selected samples using the proposed sampling devices increases the correctness of the defined process parameters (reservoir pressure, bottomhole pressure, productivity index) of wells and reservoirs.

Having obtained the required sample volume, close the selected crane 3. To do this, perform a physical effect on the handle 9 in the direction of the first outer cylindrical groove 19 of the housing 7, while the split retaining ring 22, located in a working position in engagement with the second outer cylindrical groove 20 of the housing 7, is compressed in the inner ring sample 21 of the sleeve 8 and out of engagement with the second outer cylindrical groove 20 of the housing 7.

The lever 9 moves the sleeve 8 relative to the fixed housing 7 until and unless the split retaining ring 22 radially to uncoil and engages with the first outer cylindrical groove 19 of the housing 7, occupying the initial position in which the selected tap 3 is closed.

The absence in the design of the device is a compression spring eliminates the probability of failure when opening and closing �bornago crane 3 and its failure, therefore increasing the reliability of the selected crane is in operation.

The proposed device allows to increase the quality of the samples of fluid, to increase the reliability of selected tap in the work and increase the level of accuracy determined by the technological parameters of wells and reservoirs by analysis of sampling.

The sampling device containing the main pipeline, the sampling section attached to the main pipeline with the possibility of sampling covering the cross section of fluid flow, the selected valve and a pressure gauge, wherein the sampling section at the inlet of the fluid flow inside the main pipe is provided with a pipe, with the gauge installed on the nozzle in front of the select crane, with the pipe in the main pipe installed constricting the flow device, and the selected tap is made in the form of casing and sleeve, rigidly connected with the handle, wherein in the initial position the sleeve covers the drain hole of the housing, and the handle is movable together with the sleeve, opening the drain hole of the housing in the working position, characterized in that in the main pipeline installed hollow cylinder with a Central channel, wherein the hollow cylinder by the flow of liquid is equipped with an inlet cone, narrowing the flow of fluid, and outlet cone that extends thread W�dcosta on the other hand a hollow cylinder, in the Central channel of the hollow cylinder from the front of the cone is set swirler supplied inside tangential channels, wherein the swirler opposite the entrance cone slitted and provided with radial grooves, and in the Central channel of the hollow cylinder for swirler placed the nozzle of the sampling sections for the entrance of fluid flow communicating with the selected valve, wherein the sleeve is selected crane hermetically covers the outside body with a drain hole and has the possibility of limited axial movement relative to the said casing, with the casing of selected crane is equipped with first and second outer cylindrical grooves in it and placed a split retaining ring, and the sleeve has an internal annular sample, and in the initial position, the split retaining ring is fixed to the first outer cylindrical recess in the housing choice crane and has the ability to compress a split spring retaining ring into the inner ring sample sleeve in an axial displacement of the sleeve relative to the said casing and fixing the split spring locking ring to the second outer cylindrical recess in the housing choice of the crane in working position.



 

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Sampling device // 2556851

FIELD: oil and gas industry.

SUBSTANCE: sampling device contains a main pipeline, a sampling section joined with the main pipeline with a possibility of sampling with coverage of liquid flow cross section, a sampling tap and a manometer. The sampling tap is designed as housing and bushing which is rigidly joined with a handle, and in a starting position the bushing shuts a drain hole of the housing, and the handle can move together with the bushing, opening the drain hole of the housing in working position. The hollow cylinder with the central channel is installed in the main pipeline, and the hollow cylinder from side of liquid flow movement is fitted with the input cone tapering the flow and the output cone expanding the flow on the other side of the hollow cylinder. The whirler fitted inside with tangential channels is installed in the central channel of the hollow cylinder from the input cone. The bushing of the sampling tap covers hermetically from outside the housing with the drain hole and can move restrictedly in axial direction with reference to the housing. The housing has the first and second external cylindrical grooves and the cutting spring lock ring is located inside. The bushing is fitted with internal ring sampler.

EFFECT: improvement of quality of liquid sampling, improvement of operational reliability of the sampling tap and increase of level of correctness of identified process parameters of wells and layers according to analyses of samplings.

2 dwg

FIELD: production of fittings.

SUBSTANCE: group of inventions relates to different media through pipeline pumping process and fluid sampling technique from pipeline and can be used in petrochemical industry, where accuracy of determining flow parameters in pipeline is required. Device includes mixing device, consisting of housing for local change in flow direction in pipeline. In mixing device are installed first mixing element in form of truncated cone with perforation made on its side surface, second mixer interacting with first mixing element due to drive. Mixing elements are arranged with possibility to turn and adjust flow passing through perforation holes mixing intensity on first mixing element side surface due to said holes overlapping or opening by second mixing element and, as a result, change of effective cross-section area during flow passage through first mixing element. At that, during sampling or flow parameters determining in device after both mixing elements in flow direction sampling element with valve or quality analyzer are installed. To change flow effective cross-section by adjustment outside of pipeline to transmit torque from drive hand wheel is used in device. Flow is mixed with permissible pressure drop on mixing in specified flow rate interval. Sample is taken using sampling element or one or more flow parameters are determined using quality analyzer. At that specified flow rate is set. Mixing is carried out under condition that its mixing intensity can be adjusted within permissible limits of pressure drop on mixing due to perforation holes overlapping or opening of on first mixing element side surface during second mixing element rotation by means of rotation mechanism.

EFFECT: higher accuracy of fluid pumped via pipeline quantitative and qualitative assessment.

3 cl, 1 dwg, 1 tbl

FIELD: oil and gas industry.

SUBSTANCE: device for sampling liquid from pipeline includes a through adapter 3, a rotary valve 4 with vent through channel serially installed on a branch 1 of the pipeline 2. A flange 26 is connected to the valve branch pipe, and a screw mechanism 5 for input and output into the pipeline 2 of a sampling tube 6. The movement of the sampling tube is controlled by a flywheel 64. At that a horizontal axis 71 of rotation of the screw mechanism 5 is fixed on a body of the rotary valve 4. Three lugs 42 are mounted on the flange 35 of the screw mechanism body 5, 43 and 44 with longitudinal grooves. The body of the screw mechanism 5 and the body of the rotary valve 4 are provided with cooperating lug surfaces - a projection and a bore.

EFFECT: determination of quality parameters of liquid pumped in the pipelines, simplification of device servicing, reduction of service time, reduction of costs for thereof cleaning and repair, improvement of device operation reliability.

9 dwg

FIELD: measuring equipment.

SUBSTANCE: device includes a sampling device installed in the main pipeline, a bypass line from the main pipeline, a sampling element for automatic sampling, a dispersant, a sampling element for manual sampling, a sampler. The bypass line is connected in series with the sampling device. In this case, the dispersant and a sampling element for manual sampling are installed behind the sampling element for automatic sampling along the flow path of the bypass line from the main pipeline from the condition of increasing the differential head on the sampling element for automatic sampling. When the sampling device is simultaneously a sampling pipe for automatic sampling, the dispersant at the sampling site is set from the condition of increasing the differential head on the sampling device. The dispersant is used as an element to increase the differential head on the sampling element for automatic sampling. The dispersant is carried out with a variable cross-sectional configuration along the flow path, provided that in the horizontal part of the pipeline the average width of the pipeline internal cross-section in the horizontal plane is less than the average height of the pipeline internal cross-section in the vertical plane, and in the vertical part of the pipeline, so that the cross-section area of the passage decreases along the flow direction. The sampling device with the main pipeline is strapped by means of a bypass line from the main pipeline. The part of the flow of the main pipeline is pumped under the influence of excess pressure through the sampling device and a bypass line connected in series with the main pipeline. The bypass line from the main pipeline is connected with an automatic sampler channel and a sampling element. A dispersant and a sampling element are installed for manual sampling for the sampling element for automatic sampling along the flow path of the bypass line from the main pipeline. The strapping of the elements is performed from the condition of increasing the differential head in the channel connecting the bypass line from the main pipeline with the automatic sampler, in comparison with the differential head created due to the velocity head of the flow of the bypass line from the main pipeline or due to the velocity head of the main pipeline flow. Sampling is carried out by an automatic sampler from this channel. Manual sampling is carried out from the flow of the bypass line from the main pipeline. The strapping of the elements is performed with the formed transformation of the cross-section of the flow or its part at the sampling site.

EFFECT: high accuracy with quantitative and qualitative accounting of fluid pumped through the pipeline, conducted on a set of parameters.

2 cl, 4 dwg

FIELD: automatical aids for sampling liquids.

SUBSTANCE: system for sampling and delivering filtrate has filter submerged into tested medium and connected with collecting tank and vacuum pressure source which is connected with top hole of collecting tank by means of pneumatic pipe. System has sample receiving tank connected with collecting tank and control unit which has first output to be connected with vacuum pressure source. Collecting tank has two separated chambers - washing chamber and dispatching chamber. Lower hole of washing chamber has to be lower hole of collecting tank and side hole of dispatching chamber has to be side hole of collecting tank. Floating valve is installed inside washing chamber to shut off lower and top holes. Filter is connected with lower hole of collecting tank through sampling pipe. Side hole of collecting tank is connected with lower hole of tank for receiving samples through sampling pipe. Flow-type sensor and check valve are installed inside transportation pipe. Output of flow-type sensor is connected with input of control unit; second output of control unit is connected with control input of analyzer.

EFFECT: improved precision of measurement of sample ion composition; prolonged service life of filter.

1 cl, 1 dwg

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