CN210483554U - Anti-leakage oil well tee joint - Google Patents
Anti-leakage oil well tee joint Download PDFInfo
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- CN210483554U CN210483554U CN201920200511.6U CN201920200511U CN210483554U CN 210483554 U CN210483554 U CN 210483554U CN 201920200511 U CN201920200511 U CN 201920200511U CN 210483554 U CN210483554 U CN 210483554U
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Abstract
The utility model provides an antiseep oil well tee bend, including main line (1), side pipeline (2) and sealing member (3), wherein: an opening is formed in the side wall of the main pipeline (1), and the side pipeline (2) is communicated with the main pipeline (1) through the opening; the sealing element (3) is sleeved on the side port (201) of the side pipeline (2) to seal the side port (201), and the sealing element (3) is provided with a sealing hole which is opened along the direction of the side pipeline (2), so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline (2). The sealing element (3) prevents crude oil entering the tee joint from the hollow sucker rod from flowing out of the tee joint along a gap between the side port (201) and the cable, thereby well avoiding environmental pollution and reducing explosion risks caused by oil leakage.
Description
Technical Field
The utility model relates to a tee bend, in particular to antiseep oil well tee bend.
Background
The wax deposition of the oil well is a long-standing problem in the oil field development process, when the temperature in the oil well is reduced to a certain temperature, the wax begins to be condensed and deposited on the inner wall of the oil pipe, so that the oil pipe is narrowed, the yield of the oil well is reduced, and the oil pipe is blocked to stop the production of the oil well in serious cases. And the thicker crude oil which is difficult to flow out of the oil well is difficult to produce.
Among the prior art, for solving above-mentioned problem, generally can adopt the electrical heating rod oil recovery technique, the electrical heating rod oil recovery technique indicates to give the cable circular telegram of going into in the hollow sucker rod through the ground control cabinet, utilize the terminal bar copper of cable and the reducer union contact of hollow sucker rod bottom to cause the return circuit, heat the body of rod of hollow sucker rod, through heat-conduction, improve crude oil temperature in the oil pit shaft, reduce crude oil viscosity, strengthen crude oil's mobility, so that thick, the crude oil of the difficult oil well that flows out can be exploited smoothly, prevent the oil well wax deposition simultaneously.
The inventor finds that at least the following problems exist in the prior art:
the most key part in the existing electric heating rod oil extraction technology is a tee joint, the bottom end of the tee joint is communicated with a hollow sucker rod, the upper end of the tee joint is connected with a pull rod, and a cable is inserted into the hollow rod through the side end of the tee joint. However, in the up-down stroke of the pumping unit, because of the abrasion of the hollow sucker rod or the breakdown of the cable, the crude oil can permeate into the hollow sucker rod, and after the crude oil enters the tee joint through the hollow sucker rod, the crude oil can flow out of the tee joint along the gap between the side end of the tee joint and the cable, so that the environment is polluted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an antiseep oil well tee bend can solve above-mentioned technical problem.
Specifically, the method comprises the following technical scheme:
the embodiment of the utility model provides an antiseep oil well tee bend, including main line, side pipeline and sealing member, wherein:
the lateral wall of the main pipeline is provided with an opening, and the lateral pipeline is communicated with the main pipeline through the opening.
The upper port of the main pipeline is suitable for being connected with the solid pull rod, and the lower port of the main pipeline is suitable for being connected with the hollow sucker rod.
The sealing piece is sleeved on the side port of the side pipeline to seal the side port, and the sealing piece is provided with a sealing hole which is opened along the direction of the side pipeline, so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline.
Optionally, the sealing member includes a lower gasket, at least one sealing ring, an upper gasket, and a pressure cap stacked in sequence on the side port.
Optionally, the outer diameter of the lower gasket and the outer diameter of the upper gasket are equal to the outer diameter of the side port, and the outer diameter of the at least one seal ring and the outer diameter of the pressure cap are smaller than the outer diameter of the side port.
Optionally, the seal further comprises a gland, wherein:
lower gasket, at least one sealing washer, go up gasket and pressure cap all set up inside the gland.
The outer diameters of the lower gasket, the at least one sealing ring, the upper gasket and the pressing cap are all smaller than the inner diameter of the pressing cover.
Alternatively, the threads provided on the inner wall of the gland are adapted to threadedly mate with the threads provided on the outer wall of the side port.
Optionally, the at least one sealing ring is made of an elastomeric material and the gland is adapted to compress the at least one sealing ring during threaded engagement with the side port and gradual tightening.
Optionally, the gland, the lower gasket, the at least one sealing ring, the upper gasket and the gland are all provided with through holes.
All through holes form sealing holes adapted to let cables pass.
Optionally, the inner diameter of the through hole formed in the lower gasket, the upper gasket, the pressing cap and the pressing cover is larger than the outer diameter of the cable, and the inner diameter of the at least one sealing ring is equal to the outer diameter of the cable.
Optionally, the tee further comprises a pressure tap and a pressure gauge, wherein:
the pressure connecting pipe is fixed on the outer wall of the main pipeline, and the first end of the pressure connecting pipe is communicated with the main pipeline.
The pressure gauge is connected with the second end of the pressure connecting pipe and used for displaying the pressure value inside the pressure connecting pipe.
Optionally, the tee further comprises a remote transmitter for transmitting the pressure value measured by the pressure gauge to a control duty room.
The embodiment of the utility model provides a technical scheme's beneficial effect includes at least:
the utility model provides an antiseep oil well tee bend, including main line, side pipeline and sealing member, wherein: an opening is arranged on the side wall of the main pipeline, and the side pipeline is communicated with the main pipeline through the opening; the upper port of the main pipeline is suitable for being connected with the solid pull rod, and the lower port of the main pipeline is suitable for being connected with the hollow sucker rod; the sealing piece is sleeved on the side port of the side pipeline to seal the side port, and the sealing piece is provided with a sealing hole which is opened along the direction of the side pipeline, so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline. Because the side port of the side pipeline is sealed by the sealing element, the crude oil entering the tee joint from the hollow sucker rod cannot flow out of the tee joint along the gap between the side port and the cable, thereby not only avoiding the pollution to the environment, but also reducing the explosion risk possibly generated due to oil leakage.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an anti-leakage oil well tee provided by an embodiment of the present invention;
the reference numerals in the figures are respectively:
1-a main pipeline;
101-an upper port;
102-a lower port;
2-side pipeline;
201-side port;
3-a seal;
301-lower spacer;
302-sealing ring;
303-upper gasket;
304-pressing a cap;
305-a gland;
4-pressure connection pipe;
5-a pressure gauge;
6-remote transmitter.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.
In the embodiment of the present invention, the first end refers to the end close to the hollow sucker rod, and the second end is the end far away from the hollow sucker rod.
The embodiment of the utility model provides an antiseep oil well tee bend, including main line 1, side pipeline 2 and sealing member 3, wherein:
an opening is arranged on the side wall of the main pipeline 1, and the side pipeline 2 is communicated with the main pipeline 1 through the opening.
The upper port 101 of the main pipeline 1 is suitable for being connected with a solid pull rod, and the lower port 102 of the main pipeline 1 is suitable for being connected with a hollow sucker rod.
It will be appreciated that the leak-proof tee has three ports, the first being a lower port 102 provided at a first end of the main conduit 1, the lower port 102 being adapted to communicate with a hollow sucker rod which can be heated by a cable to prevent the crude oil from waxing. As an alternative embodiment, the outer wall of the lower port 102 may be provided with screw threads which are screw-engaged with the screw threads provided on the inner wall of the hollow sucker rod, so that the lower port 102 is fixed to the hollow sucker rod, and the main pipeline 1 is communicated with the hollow sucker rod. The second port is an upper port 101 arranged at the second end of the main pipeline 1, the upper port 101 is suitable for being connected with a solid pull rod, the solid pull rod is a pull rod which is connected with a horse head and drives a hollow sucker rod to move up and down through the up-and-down movement of the solid pull rod, so that crude oil in the well is mined, as an optional embodiment, the inner wall of the upper port 101 can be provided with threads, and the threads are in threaded fit with the threads arranged on the outer wall of the solid pull rod, so that the upper port 101 and the solid pull rod are fixed with each other. The upper port 101 is a sealed port and is provided with a sealed end face, crude oil in the tee joint cannot flow out from the upper port 101, and threads are arranged on the inner wall of the main pipeline 1 between the sealed end face and the second end of the main pipeline 1. The tee also has a third port, namely a side port 201 arranged at the second end of the side pipeline 2, the side port 201 is a port for passing a cable, and the cable for supplying power and heating to the hollow sucker rod penetrates into the tee from the side port 201.
In order to prevent the crude oil from leaking out from the gap between the side port 201 and the cable after entering the tee, the side port 201 needs to be sealed, therefore the utility model provides a tee also comprises a sealing element 3.
Optionally, the sealing element 3 comprises a lower gasket 301, at least one sealing ring 302, an upper gasket 303 and a pressure cap 304, stacked in sequence on the side port 201.
Alternatively, the outer diameter of the lower gasket 301 and the outer diameter of the upper gasket 303 are equal to the outer diameter of the side port 201, and the outer diameter of the at least one seal ring 302 and the outer diameter of the pressure cap 304 are smaller than the outer diameter of the side port 201.
The outer diameter of the lower gasket 301 is equal to the outer diameter of the side port 201, a through hole is provided on the side port 201, and the area of the end surface of the side port 201 is adapted to enable the lower gasket 301 to be attached to the end surface of the side port 201 without falling into the inside of the side pipe 2, so that the lower gasket 301, the at least one seal ring 302, the upper gasket 303, and the pressure cap 304 can be stacked on the side port 201 in this order.
And the lower gasket 301 and the upper gasket 303 are set to be the same in outer diameter, so that the overall manufacturing cost of the tee joint is reduced.
The outer diameter of the seal ring 302 is smaller than the outer diameter of the side port 201, so that the outer diameter of the seal ring can be increased even after the seal ring is compressed with respect to the lower gasket 301 and the upper gasket 303.
Optionally, the seal 3 further comprises a gland 305, wherein:
a lower gasket 301, at least one sealing ring 302, an upper gasket 303, and a gland 304 are all disposed inside a gland 305.
The outer diameters of the lower gasket 301, the at least one sealing ring 302, the upper gasket 303, and the gland 304 are all smaller than the inner diameter of the gland 305.
The gland 305 is a cylindrical hollow shell open at one end and closed at the other end but provided with a through hole, shaped like a bottle cap, and provided with threads on the inner wall.
Alternatively, the threads provided on the inner wall of the gland 305 are adapted to threadedly mate with the threads provided on the outer wall of the side port 201.
The outer diameters of the lower gasket 301, the at least one sealing ring 302, the upper gasket 303, and the press cap 304 are all smaller than the inner diameter of the press cover 305, so that the lower gasket 301, the at least one sealing ring 302, the upper gasket 303, and the press cap 304 can be nested inside the press cover 305.
Optionally, the at least one sealing ring 302 is made of an elastomeric material and the gland 305 is adapted to compress the at least one sealing ring 302 during the threaded engagement and tightening of the side port 201.
The thickness of the pressure cap 304 is greater than the thicknesses of the lower gasket 301, the upper gasket 303 and the sealing ring 302, and the pressure cap 304 is used for solving the problem that the sealing ring 302 cannot be compressed because the inner end surface of the pressure cap 305 cannot press the upper gasket 303 even if the pressure cap 305 is screwed to a position where the side port 201 of the side pipeline 2 cannot be screwed continuously because the length of the side pipeline 2 of the tee joint is limited or the included angle between the side pipeline 2 and the main pipeline 1 is too small. A pressure cap 304 of greater thickness is provided so that the pressure cap 305 only has to be screwed onto the side port 201 of the side pipe 2 a few turns in order to press the pressure cap 304 against the upper gasket 303 so that the sealing ring 302 can be sufficiently compressed.
As an alternative embodiment, the lower gasket 301 and the upper gasket 303 are made of rigid metal materials, and are used for uniformly compressing the sealing ring 302, so as to avoid the situations of nonuniform stress and nonuniform compression deformation of the sealing ring 302, which may be caused when the sealing ring 302 is directly compressed by the end surface of the side port 201 of the side pipeline 2 and the pressure cap 304.
Since the sealing member 3 is required to seal the second port 201 of the side pipe 2 and also to allow the cable to pass through the sealing member 3, in the present embodiment, the gland 305, the lower gasket 301, the at least one seal ring 302, the upper gasket 303, and the gland cap 304 may be provided with through holes, as an alternative.
All through holes form sealing holes adapted to let cables pass.
As an alternative embodiment, the inner diameter of the through holes provided on the lower gasket 301, the upper gasket 303, the pressing cap 304 and the pressing cover 305 is larger than the outer diameter of the cable, and the inner diameter of the at least one sealing ring 302 is equal to the outer diameter of the cable.
Because the lower gasket 301, the upper gasket 303, the upper pressing cap 304 and the pressing cover 305 are all made of rigid metal materials, the inner diameter of the arranged through hole is larger than the outer diameter of the cable, so that the cable can smoothly pass through the through hole, and the cable wall cannot be abraded.
And sealing washer 302 is made by elastic material, consequently sets the internal diameter to equal to the external diameter of cable for can closely laminate between the outer wall of the inner wall of sealing washer 302 and cable, improve sealed effect.
The sealing element 3 is sleeved on the side port 201 of the side pipeline 2 to seal the side port 201, and the sealing element 3 is provided with a sealing hole which is opened along the direction of the side pipeline 2, so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline 2.
The assembly and sealing process of the tee provided by the present embodiment is described below with reference to specific scenarios:
firstly, fixing an upper port 101 of a main pipeline 1 in a tee joint with a solid pull rod by using threads, fixing a lower port 102 of the main pipeline 1 with a hollow sucker rod by using threads, and at the moment, arranging a cable in the hollow sucker rod and passing through the lower half part of the main pipeline 1 and the whole of a side pipeline 2; a section of the side port 201 of the cable extending out of the side pipeline 2 sequentially passes through a lower gasket 301, at least one sealing ring 302, an upper gasket 303, a pressure cap 304 and a through hole arranged on a gland 305 in a sealing element 3, the lower gasket 301, the at least one sealing ring 302, the upper gasket 303, the pressure cap 304 and the pressure cap 304 are overlapped on the side port 201 in sequence, the lower gasket 301, the at least one sealing ring 302, the upper gasket 303 and the pressure cap 304 are completely covered by the gland 305, the gland 305 is gradually screwed by utilizing the threaded fit between the gland 305 and the side port 201, the gland 305 is pressed against the pressure cap 304 and the pressure cap 304 is pressed against the upper gasket 303 during screwing, the upper gasket 303 and the lower gasket 301 jointly press the at least one sealing ring 302, the outer diameter of the sealing ring 302 is increased and pressed against the inner wall of the gland 305, the inner diameter is reduced, the outer wall of the cable is firmly sleeved by the sealing ring 302, and crude oil leaking from the side port in the gland, so that it cannot pass through the sealing ring 302 and enter the cavity between the sealing ring 302 and the second end of the gland 305, thereby providing a seal.
In order to enable an operator to master the pressure condition in the tee in real time so as to find out the condition that the crude oil permeates into the hollow sucker rod in time, as an optional embodiment, the tee further comprises a pressure connecting pipe 4 and a pressure gauge 5, wherein:
the pressure connection pipe 4 is fixed on the outer wall of the main pipeline 1, and a first end of the pressure connection pipe 4 is communicated with the main pipeline 1.
The first end of the pressure connection pipe 4 and the main pipeline 1 can be directly welded or connected by screw threads.
The pressure gauge 5 is connected with the second end of the pressure connecting pipe 4, and the pressure gauge 5 is used for displaying the pressure value inside the pressure connecting pipe 4.
As an alternative embodiment, the pressure gauge 5 and the second end of the pressure connection 4 may be connected by means of a screw thread.
And because the pressure connecting pipe 4 is communicated with the main pipeline 1, the pressure value inside the pressure connecting pipe 4 can also reflect the pressure inside the main pipeline 1 so as to indicate whether crude oil permeates into the tee joint.
As an alternative embodiment, the tee further comprises a remote transmitter 6, the remote transmitter 6 is used for transmitting the pressure value measured by the pressure gauge 5 to a control duty room, so that an operator can master the pressure condition in the tee at any time.
The embodiment of the utility model provides a technical scheme's beneficial effect includes at least:
the utility model provides an antiseep oil well tee bend, including main line 1, side pipeline 2 and sealing member 3, wherein: an opening is arranged on the side wall of the main pipeline 1, and the side pipeline 2 is communicated with the main pipeline 1 through the opening; the upper port 101 of the main pipeline 1 is suitable for being connected with a solid pull rod, and the lower port 102 of the main pipeline 1 is suitable for being connected with a hollow sucker rod; the sealing element 3 is sleeved on the side port 201 of the side pipeline 2 to seal the side port 201, and the sealing element 3 is provided with a sealing hole which is opened along the direction of the side pipeline 2, so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline 2. Because the sealing element 3 is utilized to seal the side port 201, even if crude oil leaks into the hollow sucker rod and enters the tee joint from the hollow sucker rod, the crude oil cannot flow out of the tee joint along a gap between the side port 201 and a cable, so that the environment is well prevented from being polluted, and meanwhile, the explosion risk caused by the leakage of the crude oil is reduced.
The above is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a antiseep oil well tee bend which characterized in that, includes main pipeline (1), side pipeline (2) and sealing member (3), wherein:
an opening is formed in the side wall of the main pipeline (1), and the side pipeline (2) is communicated with the main pipeline (1) through the opening;
the upper port (101) of the main pipeline (1) is suitable for being connected with a solid pull rod, and the lower port (102) of the main pipeline (1) is suitable for being connected with a hollow sucker rod;
the sealing element (3) is sleeved on a side port (201) of the side pipeline (2) to seal the side port (201), and the sealing element (3) is provided with a sealing hole which is opened along the direction of the side pipeline (2), so that a cable arranged in the hollow sucker rod can pass through the sealing hole after passing through the side pipeline (2).
2. The tee according to claim 1, characterized in that said sealing element (3) comprises a lower gasket (301), at least one sealing ring (302), an upper gasket (303) and a pressure cap (304) superposed in sequence on said side port (201).
3. The tee according to claim 2, characterized in that the outer diameter of the lower gasket (301) and the outer diameter of the upper gasket (303) are both equal to the outer diameter of the side port (201), the outer diameter of the at least one sealing ring (302) and the outer diameter of the pressure cap (304) being both smaller than the outer diameter of the side port (201).
4. The tee according to claim 2, characterized in that said seal (3) further comprises a gland (305), wherein:
the lower gasket (301), the at least one sealing ring (302), the upper gasket (303) and the pressure cap (304) are all arranged inside the pressure cover (305);
the outer diameters of the lower gasket (301), the at least one sealing ring (302), the upper gasket (303) and the pressure cap (304) are all smaller than the inner diameter of the pressure cover (305).
5. The tee according to claim 4, characterized in that the screw thread provided by the inner wall of the gland (305) is adapted to form a screw thread fit with the screw thread provided by the outer wall of the side port (201).
6. The tee according to claim 5, characterized in that said at least one sealing ring (302) is made of an elastic material, said gland (305) being adapted to compress said at least one sealing ring (302) during the threaded engagement and progressive screwing with said side port (201).
7. The tee according to claim 4, characterized in that through holes are provided on said gland (305), said lower gasket (301), said at least one sealing ring (302), said upper gasket (303) and said gland cap (304);
all the through holes form the sealing hole and are suitable for the cable to pass through.
8. The tee according to claim 7, characterized in that the inner diameter of the through holes provided on the lower gasket (301), the upper gasket (303), the gland cap (304) and on the gland (305) is greater than the outer diameter of the cable, the inner diameter of the at least one sealing ring (302) being equal to the outer diameter of the cable.
9. The tee according to claim 1, characterized in that it further comprises a pressure tap (4) and a pressure gauge (5), wherein:
the pressure connecting pipe (4) is fixed on the outer wall of the main pipeline (1), and the first end of the pressure connecting pipe (4) is communicated with the main pipeline (1);
the pressure gauge (5) is connected with the second end of the pressure connecting pipe (4), and the pressure gauge (5) is used for displaying the pressure value inside the pressure connecting pipe (4).
10. The tee according to claim 9, characterized in that it further comprises a remote transmitter (6), said remote transmitter (6) being adapted to transmit the pressure value measured by said pressure gauge (5) to a control duty room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920200511.6U CN210483554U (en) | 2019-02-14 | 2019-02-14 | Anti-leakage oil well tee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920200511.6U CN210483554U (en) | 2019-02-14 | 2019-02-14 | Anti-leakage oil well tee joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210483554U true CN210483554U (en) | 2020-05-08 |
Family
ID=70486394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920200511.6U Active CN210483554U (en) | 2019-02-14 | 2019-02-14 | Anti-leakage oil well tee joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210483554U (en) |
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2019
- 2019-02-14 CN CN201920200511.6U patent/CN210483554U/en active Active
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