Mechanism of sampler valve control

FIELD: oil and gas industry.

SUBSTANCE: invention relates to devices for sampling of horizon fluids from gas and oil wells at specified depth. The technical result is achieved in the mechanism of valve control by means of the following: in a case with a bushing and a plunger with holes for a calibrated pin positioned therein the mechanism is additionally equipped with a device in form of a cartridge located in the case of the mechanism above the bushing and interacting with the upper part of the plunger equipped with sealing rings insulating a cavity of the cartridge placed above the upper part of the plunger.

EFFECT: upgraded reliability and quality of sampling at any horizon conditions including aggressiveness of horizon and also possibility of operation of mechanism valve control with majority of employed types of samplers.

1 dwg

 

The invention relates to the oil and gas industry, in particular to a device for sampling fluids from a well to a specified depth.

The mechanism control valves samplers described in the device for sampling formation fluids in the well [see RF patent №2054541, IPC EV 49/08. Publ. 20.02.1996,].

The mechanism control valves samplers (MUK) includes a housing in which is located the clutch consisting of the coupling halves, each with its plunger and cylinder. The coupling halves are joined estimated sets of pins of various sizes and with known parameters, force slice.

The disadvantage of this mechanism of control valves samplers, taken as a prototype, is the complexity of its service in the field, as well as the impossibility of its use with the basic types of samplers flow type.

The objective of the invention is to improve the reliability and quality of sampling in any reservoir conditions, including chemical aggressiveness of the reservoir, as well as the possibilities for the mechanism of control valves used with many types of samplers.

The task in the mechanism control valves sampler comprising a body placed in it a bushing and plunger with oversteeped bagged pins is solved in that the mechanism is further provided with means, in the form of glass, located in the housing of the mechanism above the sleeve and communicating with the upper part of the plunger, provided with sealing rings, insulating the cavity of the Cup above the top of the plunger.

Salient features of the claimed technical solution in contrast to the prototype are the following:

a mechanism is further provided with means, in the form of glass;

the tool, made in the form of glass, is located in the housing of the mechanism above the sleeve and communicates with the upper part of the plunger, provided with sealing rings, insulating the cavity of the Cup above the top of the plunger.

The applicant submitted that the essential distinguishing characteristics outlined above are new, as neither of practice, or of the information and patent sources were not previously known.

Inventive step of the claimed invention, according to the applicant, no doubt, since the essential features of the invention in conjunction with the known helps to solve the problem posed by the invention, and are not obvious to specialists in this field of knowledge.

The invention can be easily implemented in the oil and gas p is the itsindustry when sampling of reservoir fluids. This solution successfully passed field tests when sampling oil wells in the Timano-Pechora province. Therefore, the claimed technical solution meets the criterion of "Industrial applicability".

The mechanism control valves sampler (MUK) includes a housing 1, which is connected by threads with the sub 2. In case 1, sub 2 posted by the plunger 3, is placed into the sleeve 4 with the required number of holes of different sizes and kit bagged pins 5 with known parameters, force slice. In the upper part of the plunger 3 by the sealing rings 6 is connected with the tool 7, is made in the form of glass, the cavity 8 which is isolated by the sealing rings 6. The adapter 2 with a hole 9 for receiving the reservoir fluid, connected by means of a thread with the housing valve block 10 sampler 11. The valve unit consists of a valve 12, the seal 13, a guide 14, a piston 15, a spring 16, crosses, 17, connected with the plunger 18, and the seat 19. Setting MUK (drawing) is in this selection and combination of pins 5, to provide equivalent pressure cutoff pins and pressure in the well, where the selected sample.

MUK (drawing) is being prepared in accordance with methods common to all deep downhole tools and devices. Mechanism the sm MUK (drawing) set up on a known pressure at a given depth of the well, where it is assumed sampling.

During movement of the Assembly consisting of the sampler 11 and ANGUISH in the hole down in the THROES of oil through the holes 9 and begins to create pressure on the plunger 3. The pressure increases with lowering of the Assembly down to the target depth of the well reaches critical when will be pressure cutoff pins 5. The pins 5 are cut off, the plunger 3 under the action of pressure moves into the glass 7 and the valve 12 under the action of the spring 16 is closed. When lifting MUK with sampler external pressure starts to drop. Excess pressure in the chamber of the sampler 11 is firmly pressed valve 12 to the seat 19. MUK in comparison with the prototype features reliability, as well as the opportunity to work with most types of samplers.

The mechanism control valves sampler comprising a body placed in it a bushing and plunger with holes for calibration pins, wherein the mechanism is further provided with means, in the form of glass, located in the housing of the mechanism above the sleeve and communicating with the upper part of the plunger, provided with sealing rings, insulating the cavity of the Cup above the top of the plunger.



 

Same patents:

FIELD: mining; physics.

SUBSTANCE: device includes seat and ferromagnetic valve, the seat being equipped with a permanent magnet system, while the valve has ferromagnetic inserts with Curie magnetic transition point equal to oil temperature at the sampling site.

EFFECT: improved device efficiency due to actuating valve device at given oil sampling site and creating additional press force.

1 dwg

Subsurface sampler // 2333358

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

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

FIELD: mining.

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.

1 dwg

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.

1 dwg

Sample taker // 2299983

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.

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

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

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.

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

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

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