Sample-taking container

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.

3 dwg

 

The invention relates to the sampling of reservoir fluids and gas in drilling oil and gas wells.

Known container QL-3 for transporting the sample from the well to the research laboratory (Mamun VP, Trebinje GF, Ulyanisky BV-Depth samplers and their application. Costoptimized. Moscow, 1961, str.), representing the high pressure cylinder, provided with connection fittings and valves. The disadvantages of this container are:

when the displacement of the sample from the container it is together with the working fluid, such as mercury;

- the need to use mercury to displace the sample from the container;

- need to use the “rocking” for mixing samples;

- the design of the container allows it to sample analysis.

Also known piston container QOL-5 (Mamun V.N., The Trebinje GF, Ulyanisky BV-Depth samplers and their application. Costoptimized. Moscow, 1961, str). The piston inside of the container, separates the oil from the working fluid, which allows not to use mercury, and used oil, glycerin and other liquids. It has drawbacks:

- need to use the “rocking” for mixing samples;

- the design of the container allows it to sample analysis.

Known QAM reception is RA sampler (U.S. Pat. Of the Russian Federation No. 2078205, E 21 In 49/08), adopted for the prototype, including a calibrated cylinder, dividing piston, flow rates, bowl for mixing samples. Disadvantages:

- this device is not adapted for sampling from plasticmetal equipment on the surface;

- complex structure.

The objective of the invention is to simplify the design of the container, adapted for reliable sampling of plasticmetal equipment on the surface, improving the reliability of the transportation and analysis of samples.

The problem is solved in that the container-sampler, comprising a housing in the form of a calibrated cylinder connected with both ends of the lids, the separating piston and a ball located inside the housing, and the flow rates supplied Bolotnikova valve and needle valve, while the spool valve is attached to the lid and consists of a rod with channels and bushes with collar, squeezed between the United threaded nuts, one of which is connected by a threaded rod, and a needle valve consists of locking needles and grandluxe and serves to bleed pressure from the confined space above Bolotnikova valve before removing the container sampler from plasticmetal equipment.

Distinctive features of the proposed technical solution from the prototype are the two which are:

- spool valve, is used to secure the inlet sealing and unsealing of the selected fluid;

- needle valve to bleed pressure from the confined space above Bolotnikova valve before removing the container sampler from plasticmetal equipment.

The applicant is not known technical solutions containing the above features distinguishing the claimed solution to the prototype, which together with the known can achieve the objectives of the invention. Based on the above, the applicant considers that the claimed invention meets the criteria of “Novelty” and “Inventive step”. The invention also meets the criterion of “Industrial applicability”, as tested in practice.

Container-the sampler is depicted in Fig.1-3. Figure 1 shows the lower part of the container sampler in longitudinal section; figure 2 is its upper part; figure 3 - cross section a-a in figure 2.

Container-the sampler consists of a housing in the form of a calibrated cylinder 1 and connected with both ends of the caps 2 and 3. Inside the housing is movably floating piston 5 and the ball 4 which is used for mixing the sample in the container, allowing the fluid in the container not to razgazirovanija and save homogeneous condition. The cover 2 is fastened with the help and thread the hydraulic resistance, consisting of a body 14, a stepped shaft 13, the tube 15, the fitting 16. Using hydraulic resistance is the slow movement of the piston. The cover 3 is mounted spool valve, consisting of a rod 6 with channels a, B, C, G, a sleeve 7 having an outer collar D, which is located between the nuts 8 and 9, connected by a thread, and the nut 9 is also connected by a threaded rod 6. Spool valve is used to secure the inlet sealing and unsealing of the selected fluid. The rod 6 is connected to the cap 11 with the fitting 12 to connect the container to the sampler with plasticmetal equipment. The cap is a needle valve, consisting of needles 17 and grandluxe 18 to bleed pressure from the confined space above Bolotnikova valve before removing from plasticmetal equipment.

Before sampling, the container must be prepared. The container can prepare in advance and immediately before sampling in the field. A needle valve is tightly closed. Retrieved stepped stem hydraulic resistance through the aperture closed by a plug 15, and through the fitting 16 is pumped ballast fluid (e.g. oil or water) inside the hydraulic resistance 14 and the piston 5. The rod is put in place. The device goth is in for sampling. For transportation of the container turns the fitting 16 and in its place install the tube.

The device operates as follows. Through the fitting device 12 is connected with the test equipment, which is located inside the fluid under pressure. Removed the side tube from the housing of the hydraulic resistance and in its place install the fitting 16 to which you can connect a tube to drain the oil. Opens bleeding or sampling valve testing equipment. Rotation of the nut 9 on the piston rod 6 is moved along the rod down the sleeve 7, opening the message channels B and C, the spool valve is opened. Fluid through the channels G, A, B and enters the cavity above the piston 5. The piston due to the pressure differential moves downward, displacing from the ballast chamber oil through the fitting 16 to the outside. After the piston will move to the lowest position, rotation of the nut 8 of the sleeve 7 is moved along the rod up, blocking the message channels, the spool valve is closed. Closes bleeding or sampling valve testing equipment. Between bleeding or sampling valve testing equipment and Bolotnikova valve of the container is fluid under pressure. Opens the needle valve by rotation of the needle 17 and the pressure in the cavity between the valve becomes equal to atmospheric. You can then disconnect the container from plasticmetal equipment. Then the container is transported to the laboratory for analysis. The study sample is carried out in a vessel equilibrium PVT similarly with “research Methods reservoir oil for piston type installations AFM”.

The container may contain adjustable sealing piston (for example, as in the prototype) to create a constant contact pressure of the sealing piston.

The use of the invention will help to make a safe selection sealed samples of oil in a homogeneous state at a pressure above the saturation pressure and gas isolated from a large volume of liquid plasticmetal equipment that, in turn, will increase the information content analysis of the sample.

Container-sampler, comprising a housing in the form of a calibrated cylinder attached at both ends to it covers, the separating piston and a ball located inside the housing, and the flow rates, characterized in that made with the possibility of joining plasticitatea equipment and provided Bolotnikova valve and needle valve, while the spool valve is attached to the lid and consists of a rod with channels and bushes with collar, squeezed between the United threaded nuts, one of which is connected through the battle with the rod, and a needle valve consists of locking needles and grandluxe and serves to bleed pressure from the confined space above Bolotnikova valve before removing the container sampler from plasticmetal equipment.



 

Same patents:

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.

4 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

Device for sampling // 2242607
The invention relates to the oil industry, in particular to devices for sampling of high pressure pipelines, and can be used to control the processes of production, preparation, transportation and storage of oil, oil products and gas, regardless of their rheological properties and the ambient temperature, providing high reliability

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The invention relates to the oil and gas industry and is designed to overlap the axial channel tubing string of pipe below the packer and the insulation layer from the cavity tubes

The invention relates to the testing of wells and can be used for sampling liquids with dissolved gas

The invention relates to the testing of wells and can be used for sampling liquids with dissolved gas

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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.

4 dwg

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.

3 dwg

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.

3 dwg

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.

7 dwg

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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.

1 dwg

Sampler // 2257471

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.

3 dwg

Sampling device // 2258807

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.

2 dwg

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EFFECT: increased operational reliability and prevention of oil sample degassing due to improved air-tightness of sampling device interior.

2 cl, 1 dwg

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