FIELD: petroleum industry.
SUBSTANCE: invention relates to the mining industry and can be used for taking subsurface samples of oil in production and exploration wells, mainly operating by the natural flow production method. The subsurface sampler contains the receiving chamber, the upper and the lower valves, the piston, sealing assemblies, valve rods for retaining samples in the sampler, the locking mechanism, the upper head and the lower tail piece with a hole for passing the fluid; the sampler is also provided with a stirrer located in the receiving chamber between the upper and the lower valves. The piston is of cylindrical form with axial boring, in which a spring-loaded valve is accommodated. The retaining and restricting nuts are provided in the bottom of the piston. The subsurface sampler is made so that it can be connected with the valve control mechanism in the upper and in the lower parts of the sampler.
EFFECT: increased strength of the sampler and operational reliability.
2 cl, 3 dwg
The invention relates to the mining industry and can be used for selection of deep oil samples in operating and exploration wells, mainly working fountain method.
Famous deep sampler flow-type containing accommodated in the housing locking mechanism that interacts with the control and the controlled valve nodes and the relay device, when the valves are made with all-rubber taper angles equal to 30°and as the relay device applied butt relay, consisting of a body with holes for the pin pusher, interacting with the control valve hub and sleeve with holes for the passage of fluid, and butt relays are equipped with antennae to toe with connection tubing when moving the sampler down. (See RF patent №2265123, IPC EV 49/08, publ. 20.01.2005,).
A disadvantage of the known depth of the sampler flow type is in contact with the working fluid, which has a negative effect on the quality of the selected depth of the sample.
The closest in technical essence and the achieved result to the stated us deep sampler is a device for sampling formation fluids in the well, the piston sampler deep BCP-3, including the tip, the lower and upper valves,piston, the collet, spacer ball, lever pushers, spring, pin (see Ashalii, Kvinesdal Determining saturation pressure of the reservoir oil directly on the borehole bottom" of the Azerbaijan state publishing petroleum and scientific-technical literature. Baku, 1960, p.45-47).
A disadvantage of the known device, taken as a prototype, is the design complexity, low reliability, due to the large dead volume and the availability of "extra" parts in the camera, such as a cable, a loose collet and valve fixed ball.
The present invention is to simplify the design of the sampler and reliability in operation.
The task in the deep sampler that includes receiving chamber, the upper and lower valves, piston, seal assemblies, valve stems to hold the sample in the sampler, the locking mechanism, the upper head and the lower tip with holes for the passage of fluid, is solved in that deep sampler equipped with a mixing device located between the upper and lower valves, and the piston is made in the form of a cylindrical body with an axial groove in which is placed a spring-loaded valve, and the piston in the lower part of the holding and restrictive nuts, with deep probate the nick is made with the possibility of its connection with the mechanism control valves, as in the lower and in the upper part of the sampler.
The task is also solved by the fact that the mixing device is designed as a sleeve, the mating parts which the diameter of the holes, and made a hole in the Central part, while on the outer side of the sleeve at the same distance from each other made the slits.
The main features of the declared our invention are:
the piston is made in the form of a cylindrical body with an axial groove in which is placed a spring-loaded valve, and the piston in the lower part of the holding and restrictive nuts;
- deep sampler made with the possibility of its connection with the control mechanism of the valves, as in the lower and in the upper part of the sampler;
- deep sampler equipped with a mixing device located in the inlet chamber between the top and bottom flaps;
- mixing device made in the form of a sleeve, the mating parts which the diameter of the holes, and made a hole in the Central part, while on the outer side of the sleeve at the same distance from each other made the slits.
The above salient characteristics were not known from the sources of patent and scientific and technical and the formation and therefore are "new", which corresponds to the condition of patentability "novelty".
Declared significant features in conjunction with the known can achieve the technical result is not obvious to a person skilled in this field of knowledge that contributes to the condition of patentability "inventive step".
The claimed technical solution successfully passed field tests, which allows us to conclude that the technical solution meets the condition of patentability "industrial applicability".
Figure 1 shows the declared us deep sampler in the cut. Figure 2 shows a mixing device in section, and figure 3 shows a top view of the mixing device.
Deep sampler includes receiving chamber 1 (see figure 1), in which is placed a piston 2 o-rings 3. In the axial groove 4 piston placed the rod 5 with the lock nut 6 at the bottom and spring loaded by the spring 7, the valve 8. In the lower part of the piston 2 has a restrictive nut 9 to limit the movement of the piston 2 downward in the receiving chamber 1 and the piston 2 provided with a retaining nut 10 to prevent movement of the piston 2 in the selection process of the sample fluid.
The upper part of chamber 1 deep sampler connected to the valve hub 11, which includes SEB the rod 12 with the spring 13, sealing rings 14 and valve 15.
In the upper part of the valve, the node 11 is connected to the cylinder 16 to attach the deep sampler using wire to the winch at the deep descent of the sampler in the well (figne shown).
In the lower part of the receiving chamber 1 (see figure 1) is connected with a lug 17, which is made openings 18 for the passage of fluid.
The receiving chamber 1 between the upper valve node 11 and the piston 2 is posted mixing device 19, which includes a sleeve 20, the mating cylindrical part 21, in which the diameter of the holes 22 and hole 23 in the Central part of the fitting cylindrical part 21 (see figure 2 and 3).
On the outside of the sleeve 20 (see figure 2 and 3) performed at the same distance as the slots 24.
In the process of working with the deep sampler use the mechanisms of control valves (Fig. not shown).
Deep sampler works as follows:
Before descending "deep sampler in the well for sampling depth sample fluid it equip mechanisms control valve (MUK), for this sbencivu head 16 and tip 17 in figure 1, these places we have identified POS. When the screw mechanism control valves (MUK) in the upper part of the sampler POS pusher MUK (Fig. not showing the but) acts on the rod 12 and opens the valve 15 of the sampler. In the same way, when the screw MUK (Fig. not shown), the plunger MUK (Fig. not shown) acts on the rod 5 and opens the valve 8 of the sampler. Then the sampler with open valves 8 and 15 down into the well. The sampler at this moment works as a running. At a given point sampling depth of the sample in the well trimmed and bagged pins ANGUISH and the plunger MUK (Fig. not shown) moves up in the glass (Fig. not shown). The valves 8 and 15 under the action of pressure in the well is closed and the springs 7 and 13 of the sampler firmly hold the valves sampler 8 and 15 in the closed state. The sampler with the selected breakdown extracted from wells. After lifting the deep sampler to the surface Unscrew the ring mechanisms control valve of the sampler in the upper and lower parts (see POS figure 1), then Unscrew too restrictive nut 9 and in its place screw up the cover (Fig. not shown) to prevent the opening of the valve and hit the buffer fluid in the receiving chamber 1 of the sampler in the translation process of the deep samples in research equipment. Next at the top and bottom of the sampler screw head with valves for translation samples (Fig. not shown) in the research instrument. On the sampler wear thermostatic shirt, connect with those whom moschatum and pressure (Fig. not shown). Then create the pressure and temperature of the sampling point depth of the sample in the well and by swinging the sampler mixing device 19 is moved in the chamber 1 of the sampler and the sample of oil passing through the hole 22 of the mixing device, is mixed in the chamber 1. Then head for translation samples (Fig. not shown) of the buffer fluid creates pressure on the flap (Fig. not shown)installed instead of the restrictive nuts 9. The cap testing pressure buffer fluid moves the piston 2 with the valves 8 up and displaces selected a sample of oil, which, passing through the hole 22 of the mixing device 19, and mixed perelavlivaet through the press and the buffer fluid in the research instrument (Fig. not shown).
1. Deep sampler that includes receiving chamber, the upper and lower valves, piston, seal assemblies, valve stems to hold the sample in the sampler, the locking mechanism, the upper head and the lower tip with a hole for passage of a fluid, characterized in that deep sampler equipped with a mixing device located in the inlet chamber between the upper and lower valves, and the piston is made in the form of a cylindrical body with an axial groove in which is placed modplugin the config valve, as the piston in the lower part of the holding and restrictive nuts, with deep sampler made with the possibility of its connection with the control mechanism of the valves, as in the lower and in the upper part of the sampler.
2. Deep sampler according to claim 1, characterized in that the mixing device is made in the form of a sleeve, the mating parts which the diameter of the holes, and made a hole in the Central part, while on the outer side of the sleeve at the same distance from each other made the slits.
FIELD: petroleum industry.
SUBSTANCE: invention relates to investigations of subsurface samples of fluids and particularly, to taking aliquot subsurface microsamples of formation fluids for conducting in-situ express analysis. The well device contains the sampling tank and several microsampling chambers. Microsampling chambers may have at least one window for input of energy of visible emission, emissions in the near and middle fields of the infrared range and energy of other kinds of electromagnetic emission into the tank for samples collected in the microsampling chamber, in the well or downhole. Such window can be made of sapphire or another material transparent for electromagnetic emission. Besides the whole microsampling chamber can be made of sapphire or other material transparent for electromagnetic emission with a possibility of visual control or analysis of samples in the microsampling chamber. The microsampling chamber makes it possible to immediately analyse a sample obtained in situ, on the surface to determine the quality of the sample contained in the main sampling tank or to make thorough analysis of the same.
EFFECT: increased sampling capacity and express analysis of samples, more accurate determination of the parameters of the sample.
30 cl, 8 dwg
SUBSTANCE: invention relates to determination of various well characteristics in the underground formation, through which the borehole passes. For this purpose a pressure drop is created due to the difference between the internal pressure of fluid that passes through the drilling tools and pressure in the circular space in the borehole. The device contains an extension arm that can be connected with the drilling tools and has an opening that enters into the chamber in the extension arm. A piston is located in the chamber with a rod passing through the opening. The piston can move from the closed position when the rod blocks the opening to the open position when the rod is retracted into the chamber to form a cavity for intake of well fluid. A sensor is located inside the rod, which is intended for data collection from the well fluid contained in the cavity.
EFFECT: increase of accuracy of determination of well characteristics.
34 dwg, 9 dwg
FIELD: method and sensor for gas monitoring in well environment.
SUBSTANCE: method involves providing infrared light-emitting diode in well; transmitting corresponding infrared signals to the first optical path extending from the diode through well gas sample and the second optical path extending from the diode through gas sample; detecting transmitted infrared signals and determining concentration of component in well gas sample from detected signals. The first optical path is free of liquid.
EFFECT: increased accuracy of gas monitoring.
36 cl, 4 ex, 19 dwg
FIELD: equipment for reservoir gas presence in drilling mud flow passing via well during well drilling.
SUBSTANCE: device comprises at least on sensing chamber to be connected to drilling string for well drilling. Each sensing chamber contains taken gas volume and comprises membrane wall for reservoir gas penetration from drilling mud flow in sensing chamber. Sensor provides determination of said gas volume characteristics change caused by reservoir gas penetration from drilling mud flow in sensing chamber through membrane wall.
EFFECT: increased reliability and accuracy of gas detection.
16 cl, 4 dwg
FIELD: in-situ or remote measurement and analysis of drilling mud, completion fluid, completion fluid, industrial solutions and reservoir fluids.
SUBSTANCE: method involves taking liquid samples from predetermined liquid sample taking points where drilling mud, completion fluid, completion fluid, industrial solutions and reservoir fluid flow or are stored; introducing the samples in chemical analyzing microfluid system linked to computer device; performing one or several selected tests in said microfluid device with the use of test result detecting and data creation means; converting said data with analytic test results obtaining; monitoring said results to control selected parameters of drilling operation, reservoir penetration and operation.
EFFECT: decreased amount of sample and test reagents.
12 cl, 3 ex, 3 tbl, 5 dwg
FIELD: oil and gas production, particularly equipment for oil and gas property investigation under reservoir conditions.
SUBSTANCE: plant comprises piston container with plug and transfer unit, which moves sample from piston container into measuring press including two piston pumps having equal capacities. One piston pump delivers sample from piston container, another one lowers floating piston in measuring press. Measuring press is provided with floating piston having hollow shaft, ultrasonic linear displacement sensor for oil volume determination and electronic linear displacement sensor for gas volume determination. Circulation piston pump provides unidirectional oil circulation at controllable rate. Viscosimeter has bypass with shutoff valve. Single thermostating shell encloses all components of the plant.
EFFECT: increased accuracy of oil and gas volume and viscosity determination, decreased sample characteristic measurement time under reservoir conditions and, as a result, increased operational efficiency.
FIELD: oil and gas industry, particularly obtaining fluid samples or testing fluids in pipelines.
SUBSTANCE: device comprises pipeline, body made as connection pipe with hollow shaft and cock. Hollow shaft is fixedly connected to pipeline in air-tight manner and is made as connection pipe with beveled end and radial orifices facing liquid flow made in shaft side opposite to that provided with beveled end. Pipeline has restriction located downstream of the shaft. Another end of connection pipe is air-tightly connected to pipeline downstream of the restriction and located in decreased pressure zone. Connection pipe section defined by cock and the second end is provided with cylindrical case with piston, which may slide in axial direction with respect to the case. The case has discharge connection pipe arranged from cock side. The piston comprises valve providing liquid flow from the cock side. The cock is made as a cylinder with electromagnet and shaft air-tightly installed in the cylinder and sliding with respect to the cylinder in axial direction by means of electromagnet. Cylinder has outlet connection pipe and is communicated with discharge connection pipe. Both connection pipes are closed with shaft. The shaft has two annular grooves. The first groove may communicate connection pipe with cylinder to seal the connection pipe as shaft moves inside the cylinder. The second groove may communicate outlet and discharge connection pipes as shaft slides inside the cylinder.
EFFECT: increased sample taking quality.
FIELD: oil and gas industry, in particular, engineering of devices for integration sample taking of paraffin containing water-oil emulsions from pipelines.
SUBSTANCE: sample taker includes body mounted on pipeline, in the socket of which spindle is mounted with possible progressive movement along thread, valve positioned on spindle head, interacting with saddle, sample-taking pipe, mounted in threaded socket of body below saddle. Round rod, connected to valve, is coaxially positioned inside sample-taking pipe. Metallic plates for removing paraffin sedimentations are mounted on the rod. Sample-taking pipe is made with longitudinal slit recess facing the liquid stream.
EFFECT: increased efficiency.
FIELD: oil production, particularly devices to perform reservoir tests in wells, including that having opened bores.
SUBSTANCE: device comprises upper connection unit for device fixation on pipe string, upper and lower packers with sealing members, upper and lower movable rods provided with axial channels arranged inside packers and hollow filter installed between upper and lower packers. Axial channel of lower movable rod is provided with solid partition. Upper and lower movable rods are fixedly connected with each other in air-tight manner and provided with upper connection unit. Upper and lower rods may be displaced only in downward direction with respect to upper and lower packers. Sealing members of upper and lower packers are located between stops. Upper stop of lower packer is fixedly connected with lower stop of upper packer provided with balloon-type centrators through hollow filter. The balloon-type centrators are arranged from top thereof. One stop of each packer is made as hydraulic cylinder fixedly connected with packer and as annular piston cooperating with sealing member. Inner cavities of each hydraulic cylinder may cooperate with axial channels of movable rods over solid partition and may provide air-tight isolation thereof during movable rod displacement in downward direction with respect to packers. Upper movable rod is provided with radial channel sealed with packer and adapted to cooperate with ambient space through hollow filter during movable rods displacement in downward direction with respect to packers.
EFFECT: simplified structure, decreased costs of device production and increased operational reliability.
FIELD: hydro-geological well research, in particular, engineering of equipment for taking liquid samples from wells of various level depths.
SUBSTANCE: device includes rod with diaphragms in form of plugs, cylinder-shaped body with drain ports. Body is mounted on external side of upper diaphragm with possible longitudinal movement relatively to the rod. From above body is provided with hydraulic chamber with a wall. Hydraulic chamber from above is connected to pipes column. Piston, spring-loaded from below and hermetically enveloping the rod, is mounted inside hydraulic chamber. Circular recesses narrowing towards the top are made on external surface of rod above diaphragms, with distance between them equal to distance between diaphragms. Analogical circular recesses, narrowing towards bottom and equipped with stopper rings, are made on internal surface of wall and piston. Stopper rings are made with possible interaction with circular recesses of rod. From below the body is equipped with tail piece with longitudinal side channels. From below hydraulic chamber is equipped with technological apertures.
EFFECT: increased reliability and division quality of samples taken.
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
FIELD: oil industry.
SUBSTANCE: device has hollow body which is a fragment of force pipeline at vertically placed portion of mouth armature. Tool for controlling flow of multi-component gas-liquid substance is made in form of valve, connected to rotary support. Sample chamber is a ring-shaped hollow in hollow body, placed at same level with valve and connected at inlet to flow of multi-component gas-liquid substance through extracting channels, made on hollow body. Extracting channels are made in form of side slits, positioned symmetrically relatively to valve rotation axis. Ring-shaped hollow on hollow body is connected at outlet to locking tool, mounted at extension of valve shaft and made in form of sample-taking valve. Valve shaft and sample-taking valve are interconnected through hollow intermediate shaft. Sample-taking valve is placed in the body of locking tool with possible reciprocal movement. Valve shaft and hollow intermediate shaft are interconnected with possible mutual rotation for a quarter of one turn.
EFFECT: simplified construction and maintenance, higher quality.
FIELD: oil and gas industry.
SUBSTANCE: device has body in form of calibrated cylinder. From both sides lids are connected to body. Inside the body separating piston and ball for mixing sample are placed. Also provided is hydraulic resistance for slow inlet of sample. Slide valve is used for safe inletting, pressurization and depressurization of taken fluid, is connected to lid and consists of rod with channels and bushing with clamp. Clamp is held between nuts interconnected by threads, one of which is connected to rod by thread. Needle valve consists of locking pin and axle-bearing and is used to drain pressure from closed space above slide valve prior to disconnection of sample-taking container from bed-testing equipment.
EFFECT: simplified construction, higher reliability.
FIELD: oil industry.
SUBSTANCE: device has hollow body mounted in force pipeline, inside of which body tool for controlling flow of multi-component gas-liquid substance is placed, probing chamber with extracting channels, locking tool with handle and guiding pipe, driving valve for picking sample, mounted with possible interaction with spring-loaded rod, placed inside the shaft of flow control tool. Hollow body is a fragment of force pipeline at vertical portion of mouth armature, control tool is made in form of valve of lesser diameter, then inner diameter of hollow body, and probing chamber is a ring-shaped hollow in hollow body, positioned at same level with valve and connected at input to flow of multi-component gas-liquid substance through extraction channels, made symmetrically to rotation axis of valve, and at output - to locking tool, while rod is provided with shelves for multi-start thread of appropriate cross-section, made at shaft on length of no less than quarter of axial step of this thread.
EFFECT: simplified construction, higher efficiency.
FIELD: oil industry.
SUBSTANCE: device has hollow cylindrical body, branch pipes for extraction and output of sample and locking element. Body is made thick-walled. End portions of body are made in form of truncated cone and interconnected, on the side of lesser bases by means of channel. Branch pipe for extraction of sample is made elongated, with length equal to body diameter, and is let through in transverse direction of body through the center of said channel. Within limits of branch pipe cross-section its hollow is separated by slanted solid wall on two portions, each of which is connected thereto. One portion of branch pipe hollow is meant for taking sample, other one - for feeding reagent into well product. To receive trustworthy information about sample, by setting flow to homogenous state, inner surface of cone, on the side of larger base, is provided with rigidly fixed blades for turbulization of flow flowing into body, while diameter of channel connecting cones is selected equal to diameters of their lesser bases.
EFFECT: simplified construction, broader functional capabilities, higher quality of sample.
2 cl, 3 dwg
FIELD: oil industry.
SUBSTANCE: hollow body of device is actually a fragment of force pipeline at mostly vertical portion of mouth armature. Organ for controlling flow of multi-component gas-liquid substance is made in form of valve mounted on shaft having lesser size, than inner diameter of hollow body. Sample chamber is in form of ring-shaped hollow on hollow body, positioned at same level with valve. Ring-shaped hollow is connected at input to flow of multi-component gas-liquid substance through intake channels, positioned symmetrically to valve rotation axis, and at output - with locking organ. Driving screw mounted on body of locking organ is connected to sample-taking valve with possible mutual rotation and combined axial displacement. Sample-taking valve and shaft with valve are mated with possible synchronous rotation around common axis and relative axial displacement. Working organs of device are positioned immediately near main flow of substance taken as sample to provide for lesser dimensions of device and prevented freezing in winter season.
EFFECT: simplified construction, simplified maintenance.
FIELD: oil production industry, particularly methods or devices for cementing, for plugging holes, crevices, or the like.
SUBSTANCE: device comprises inflatable packers to be lowered into well along with flow string. One flow string end is closed to provide simultaneous well bore packing, another end is connected to production equipment. Flow string is provided with centralizers located near inflatable packers. Formed in flow string are additional holes located opposite to packers. Well pump is installed inside flow string. High-pressure water conduit having low diameter is connected to above holes. Flow string has perforated orifices created between inflatable packers.
EFFECT: extended operational capabilities.
FIELD: oil-field equipment, particularly for obtaining fluid samples or testing fluids in boreholes or wells and may be used for integrated obtaining sample of multicomponent liquid-gas systems transported through pipelines.
SUBSTANCE: sampler comprises hollow body installed in high-pressure pipeline of wellhead fittings and extraction chamber with discharge channels. Rotary tool adapted for multicomponent liquid-gas medium flow regulation is installed inside the body. Sampler also has shutoff member with actuated sample extracting valve, handle and guiding tube. Sampler comprises hollow body made as a part of high-pressure pipeline and tool adapted for multicomponent liquid-gas medium flow regulation arranged in hollow body. The tool consists of flap installed on a shaft and having diameter corresponding to inner hollow body diameter, extraction chamber used to extract and mix multicomponent liquid-gas medium flow formed as annular cavity around hollow body. The cavity is divided into inlet and outlet parts by partition arranged at flap level. Inlet and outlet parts communicate with common multicomponent liquid-gas medium flow correspondingly through inlet and outlet channels on hollow body and through opening formed in the partition at sample extracting valve inlet. Drive screw installed in shutoff member body is connected with sample extracting valve so that drive screw and sample extracting valve may perform mutual rotation and move in axial direction. Sample extracting valve and shaft with flap mate each other so that they may perform synchronous limited rotation about common axis and mutual axial movement.
EFFECT: increased simplicity, provision of high-quality mixing of sample product and increased sample reliability.
FIELD: oil field equipment, particularly for take samples from wellhead, namely for integrated sampling multi-component gas-liquid medium transported through pipelines.
SUBSTANCE: device has hollow body built in pressure pipeline and formed as a part of the pipeline located on vertical part of wellhead fittings. Multi-component gas-liquid medium flow control unit is made as a gate connected to rotary support shaft. Sampling chamber is created as annular cavity arranged on hollow body at gate level. Sampling chamber inlet is communicated with multi-component gas-liquid medium flow through intake manifolds formed on hollow body. Intake manifolds are side slots arranged symmetrically about gate axis of rotation. Sampling chamber outlet is communicated with shutoff member installed on rotary gate support shaft extension. Shutoff member includes seat, hold-down screw and ball contacting with the seat and embedded in pressure screw end.
EFFECT: simplified structure and increased sampling quality.
FIELD: mining industry, particularly to take subsurface oil samples in running and exploratory wells working in flow mode.
SUBSTANCE: sampling device has tubular body with lock mechanism arranged inside the body and connected to controlling valve assembly from the first side and controllable valve assembly from the second side thereof. Joint relay is screwed on the controlling valve assembly. The controlling assembly is retained in its opened position by joint relay including body with orifices for pin receiving, pusher acting upon the controlling valve assembly and bush with fluid circulation orifices. Valve assemblies include all-rubber valves having 30° cone angles. The relay has barbs to engage with production string connector. When sampling device moves downwards the barbs are brought into folded state.
EFFECT: increased operational reliability and prevention of oil sample degassing due to improved air-tightness of sampling device interior.
2 cl, 1 dwg