CN216642061U

CN216642061U - Sampling valve for oil extraction well mouth

Info

Publication number: CN216642061U
Application number: CN202220266583.2U
Authority: CN
Inventors: 冯锶桁; 高长旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-05-31
Anticipated expiration: 2032-02-10

Abstract

The utility model provides an oil extraction wellhead sampling valve which comprises a valve body assembly, a sealing assembly and an observation assembly, wherein the valve body assembly comprises a valve body, a threaded through hole, a threaded rod, a handle, a valve rod, a pipe body, an oil outlet pipe and a valve; the sealing assembly comprises an annular shell, a first sealing gasket, a through groove, a second sealing gasket, a bulge and a diversion groove; the observation assembly comprises an acrylic plate and a scale part; the annular shell is welded on the inner side wall of the valve body; according to the utility model, the volume of the petroleum temporarily stored in the valve body is observed through the acrylic plate and the scale part, the sampling bottle is placed at the bottom port of the oil outlet pipe, the petroleum temporarily stored in the valve body enters the sampling bottle through the oil outlet pipe, the volume of the sampled petroleum does not exceed the budget of workers, the situation that the petroleum is excessively taken out to cause the petroleum to be scattered to the outside is avoided, and the complex operation that the volume of the petroleum taken out is too small and the sampling is carried out for the second time is also avoided.

Description

Sampling valve for oil extraction well mouth

Technical Field

The utility model relates to the technical field of oil extraction sampling, in particular to an oil extraction wellhead sampling valve.

Background

The oil extraction engineering is a general term for various engineering technical measures which are taken for an oil reservoir through a production well and an injection well according to development targets in the oil field exploitation process;

sampling valves are valves used to obtain media samples in pipes or equipment, and are used in situations where chemical analysis of media samples is required on a regular basis.

In the oil extraction engineering, in order to ensure the quality of the extracted crude oil, the oil extraction well head is required to be subjected to oil extraction sampling;

at the in-process of getting oil, the staff opens the valve, takes a sample to the oil through the sampling bottle, however current oil recovery sampling valve for the well head still has some not enoughly:

firstly, in the process of sampling petroleum by workers, the valves are usually opened firstly, the petroleum flows out from the sampling valves, when a sampling bottle is filled up, the sampling valves are closed, which sometimes occurs, when the sampling bottle is filled up, the workers cannot close the sampling valves in time, so that too much or too little petroleum is taken out, when the workers close and seal the sampling bottle by using bottle caps when the petroleum is too much, the petroleum in the sampling bottle is scattered to the outside, when the petroleum is too little, the valves are required to be opened again for sampling, the operation is complex, or residual petroleum at the outlets of the sampling valves drips to the ground, and the waste of petroleum resources can be caused;

secondly, the existing sampling valve has poor sealing effect, and sometimes petroleum leakage occurs when workers do not tighten the sampling valve;

therefore, the sampling valve of the oil extraction wellhead is provided.

SUMMERY OF THE UTILITY MODEL

Accordingly, embodiments of the present invention are directed to a sampling valve for a wellhead to solve or mitigate the problems of the prior art, and to at least provide a useful choice.

The technical scheme of the embodiment of the utility model is realized as follows: a sampling valve of an oil extraction wellhead comprises a valve body assembly, a sealing assembly and an observation assembly, wherein the valve body assembly comprises a valve body, a threaded through hole, a threaded rod, a handle, a valve rod, a pipe body, an oil outlet pipe and a valve;

the sealing assembly comprises an annular shell, a first sealing gasket, a through groove, a second sealing gasket, a bulge and a diversion groove;

the observation assembly comprises an acrylic plate and a scale part;

annular housing weld in the inside wall of valve body, first sealed pad cup joint in the lateral wall of valve rod, the laminating in the outside of first sealed pad the inboard of annular housing, the one end of body is run through one side of valve body and with annular housing intercommunication, the guiding gutter has evenly been seted up to first sealed lateral wall bottom of filling up, the embedded installation of ya keli board in the outside of valve body.

In some embodiments: the threaded through hole is opened in the upper surface of valve body, the outside of threaded rod with the inboard threaded connection of threaded through hole, the bottom of threaded rod with the top welding of valve rod, the bottom of threaded rod with the bottom welding of handle rotates the handle, drives the threaded rod and rotates at threaded through hole inside, and the threaded rod pivoted is the time, drives the valve rod up-and-down motion.

In some embodiments: the bellying weld in the bottom of valve rod, the embedded installation of second sealed pad in the inside diapire of valve body improves the sealed effect that valve rod and the inside diapire of valve body are connected, prevents that the oil from leaking.

In some embodiments: the bellying possesses the cylinder structure of radian for the lower extreme, and the inboard of the sealed inboard of filling up of second of bottom laminating of bellying, strengthens the leakproofness that valve rod and the inside diapire of valve body are connected.

In some embodiments: the oil outlet pipe is communicated with the bottom of the valve body and is positioned at one side of the pipe body, the valve is installed at the outer side of the oil outlet pipe, the valve is opened, and oil in the valve body flows out through the oil outlet pipe.

In some embodiments: and a scale part is integrally formed on the outer side of the acrylic plate to determine the volume of the petroleum flowing out of the valve body.

In some embodiments: a through groove is formed in the bottom of the outer side wall of the first sealing gasket, so that oil flows out of the annular shell.

In some embodiments: the acrylic plate is located on one side, far away from the pipe body, of the valve body.

Due to the adoption of the technical scheme, the embodiment of the utility model has the following advantages:

firstly, the utility model observes the volume of the petroleum temporarily stored in the valve body through the acrylic plate and the scale part, places the sampling bottle at the bottom port of the oil outlet pipe, and the petroleum temporarily stored in the valve body enters the sampling bottle through the oil outlet pipe, so that the volume of the sampled petroleum does not exceed the budget of workers, thereby avoiding the occurrence of the situation that the petroleum is too much taken out to cause the petroleum to be scattered to the outside and avoiding the complex operation that the volume of the petroleum taken out is too little and the sampling is carried out for the second time.

The valve is provided with the cylindrical structure, the lower end of the cylindrical structure is provided with the protruding portion, the protruding portion is inserted into the second sealing gasket, the sealing effect of the connection between the valve rod and the bottom wall of the interior of the valve body is improved, oil leakage is prevented, double sealing is achieved by matching the valve with the first sealing gasket, the protruding portion and the second sealing gasket, and the sealing effect is good.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a block diagram of the valve stem of the present invention;

fig. 3 is a structural view of the valve body in the present invention.

Reference numerals: 10. a valve body assembly; 11. a valve body; 12. a threaded through hole; 13. a threaded rod; 14. a handle; 15. a valve stem; 16. a pipe body; 17. an oil outlet pipe; 18. a valve; 20. a seal assembly; 21. an annular housing; 22. a first gasket; 23. a through groove; 24. a second gasket; 25. a boss portion; 26. a diversion trench; 30. an observation assembly; 31. acrylic plates; 32. a scale section.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-3, an embodiment of the present invention provides a sampling valve at an oil production wellhead, which includes a valve body assembly 10, a sealing assembly 20 and an observation assembly 30, wherein the valve body assembly 10 includes a valve body 11, a threaded through hole 12, a threaded rod 13, a handle 14, a valve rod 15, a pipe body 16, an oil outlet pipe 17 and a valve 18;

the seal assembly 20 comprises an annular housing 21, a first seal 22, a through groove 23, a second seal 24, a boss 25 and a diversion groove 26;

the observation assembly 30 includes an acrylic plate 31 and a scale portion 32;

annular housing 21 welds in the inside wall of valve body 11, and first sealed 22 cup joints in the lateral wall of valve rod 15, the inboard of the annular housing 21 of the outside laminating of first sealed 22, and one side that valve body 11 was run through to the one end of body 16 and communicates with annular housing 21, and guiding gutter 26 has evenly been seted up to the lateral wall bottom of first sealed 22, and the embedded outside of installing in valve body 11 of inferior gram force board 31.

In one embodiment: the threaded through hole 12 is formed in the upper surface of the valve body 11, the outer side of the threaded rod 13 is in threaded connection with the inner side of the threaded through hole 12, the bottom of the threaded rod 13 is welded with the top of the valve rod 15, and the bottom of the threaded rod 13 is welded with the bottom of the handle 14; by rotating the handle 14, the threaded rod 13 is driven to rotate inside the threaded through hole 12, and the threaded rod 13 drives the valve rod 15 to move up and down while rotating.

In one embodiment: the convex part 25 is welded at the bottom of the valve rod 15, and the second sealing gasket 24 is embedded and arranged at the inner bottom wall of the valve body 11; through above setting, when valve rod 15 downstream, insert inside the sealed 24 of second through bellying 25, improve the sealed effect that valve rod 15 and the inside diapire of valve body 11 are connected, prevent that the oil from leaking.

In one embodiment: the lower end of the bulge 25 is of a cylindrical structure with a radian, and the bottom of the bulge 25 is attached to the inner side of the second sealing gasket 24; with the above arrangement, the sealing property of the connection of the valve rod 15 and the inner bottom wall of the valve body 11 can be enhanced.

In one embodiment: the oil outlet pipe 17 is communicated with the bottom of the valve body 11, the oil outlet pipe 17 is positioned at one side far away from the pipe body 16, and a valve 18 is arranged at the outer side of the oil outlet pipe 17; with the above arrangement, the valve 18 is opened, and the oil in the valve body 11 flows out through the oil outlet pipe 17.

In one embodiment: a scale part 32 is integrally formed on the outer side of the acrylic plate 31; the volume of oil flowing out of the valve body 11 is determined by the scale portion 32.

In one embodiment: the bottom of the outer side wall of the first sealing gasket 22 is provided with a through groove 23; oil can be made to flow out of the annular housing 21.

In one embodiment: the acrylic plate 31 is positioned on one side of the valve body 11 away from the tube body 16; for observing the volume of oil temporarily stored in the valve body 11.

The utility model is in operation: during the process of sampling petroleum by a worker, firstly, the handle 14 is rotated clockwise, the handle 14 drives the threaded rod 13 to rotate in the threaded through hole 12, meanwhile, the threaded rod 13 drives the valve rod 15 to move upwards, during the process of moving upwards the valve rod 15, the first sealing gasket 22 is driven to move upwards, and simultaneously the protrusion part 25 is driven to be separated from the second sealing gasket 24, when the first sealing gasket 22 moves upwards to the position where the diversion trench 26 is adjacent to the outlet of the pipe body 16, petroleum in the pipe body 16 flows to the bottom inside the annular shell 21 through the diversion trench 26, then flows out of the annular shell 21 through the through trench 23, reaches one side of the valve body 11 far away from the pipe body 16, the worker observes the volume of the petroleum temporarily stored in the valve body 11 through the acrylic plate 31 and the scale part 32, when the volume of the petroleum temporarily stored in the valve body 11 meets the volume required to be sampled by the worker, the handle 14 is rotated anticlockwise, the valve rod 15 moves downwards, the mouth of pipe of body 16 is sealed up to first sealed pad 22, cooperation bellying 25 inserts in the sealed pad 24 of second, improve the sealed effect to body 16, prevent oil leakage, then place the sampling bottle at the bottom port of oil pipe 17, open valve 18, temporarily store in the inside oil of valve body 11 gets into the sampling bottle through oil pipe 17, the oil volume of sample can not surpass staff's budget, neither need worry to take out oil too much, lead to unrestrained external condition to appear, avoided taking out oil volume too little, still need the secondary to carry out the complicated operation of taking a sample, and simultaneously, after the sample finishes, the remaining oil in oil pipe 17 bottom, can slowly use the sampling bottle to take over, need not to close the sampling bottle in the rush, valve 18 cooperation first sealed pad 22, bellying 25 and the sealed pad 24 of second, realize double seal, sealed effectual.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a production well head sample valve, includes valve body subassembly (10), seal assembly (20) and observation subassembly (30), its characterized in that: the valve body assembly (10) comprises a valve body (11), a threaded through hole (12), a threaded rod (13), a handle (14), a valve rod (15), a pipe body (16), an oil outlet pipe (17) and a valve (18);

the sealing assembly (20) comprises an annular shell (21), a first sealing gasket (22), a through groove (23), a second sealing gasket (24), a convex part (25) and a diversion groove (26);

the observation assembly (30) comprises an acrylic plate (31) and a scale portion (32);

annular housing (21) weld in the inside wall of valve body (11), first sealed pad (22) cup joint in the lateral wall of valve rod (15), the outside laminating of first sealed pad (22) the inboard of annular housing (21), the one end of body (16) is run through one side of valve body (11) and communicate with annular housing (21), guiding gutter (26) have evenly been seted up to the lateral wall bottom of first sealed pad (22), inferior gram force board (31) embedded install in the outside of valve body (11).

2. The production wellhead sampling valve of claim 1, wherein: the threaded through hole (12) is arranged on the upper surface of the valve body (11), the outer side of the threaded rod (13) is in threaded connection with the inner side of the threaded through hole (12), the bottom of the threaded rod (13) is welded with the top of the valve rod (15), and the bottom of the threaded rod (13) is welded with the bottom of the handle (14).

3. The production wellhead sampling valve of claim 1, wherein: the bulge (25) is welded at the bottom of the valve rod (15), and the second sealing gasket (24) is installed on the inner bottom wall of the valve body (11) in an embedded mode.

4. The production wellhead sampling valve of claim 1, wherein: the lower end of the bulge (25) is of a cylindrical structure with a radian, and the bottom of the bulge (25) is attached to the inner side of the second sealing gasket (24).

5. The production wellhead sampling valve of claim 1, wherein: the oil outlet pipe (17) is communicated with the bottom of the valve body (11), the oil outlet pipe (17) is located at one side far away from the pipe body (16), and a valve (18) is installed on the outer side of the oil outlet pipe (17).

6. The production wellhead sampling valve of claim 1, wherein: the outer side of the acrylic plate (31) is integrally formed with a scale part (32).

7. The production wellhead sampling valve of claim 1, wherein: the bottom of the outer side wall of the first sealing gasket (22) is provided with a through groove (23).

8. The production wellhead sampling valve of claim 1, wherein: the acrylic plate (31) is positioned on one side of the valve body (11) far away from the pipe body (16).