CN211777310U - Oil well head device for oil field - Google Patents
Oil well head device for oil field Download PDFInfo
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- CN211777310U CN211777310U CN201922137276.5U CN201922137276U CN211777310U CN 211777310 U CN211777310 U CN 211777310U CN 201922137276 U CN201922137276 U CN 201922137276U CN 211777310 U CN211777310 U CN 211777310U
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- sleeve
- oil
- circular plate
- pipe
- sealing ring
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Abstract
A kind of oil well wellhead device of oil field, one end of the tube connects the pressing sleeve, there is a pressing cap outside the pressing sleeve; the other end of the tube is sleeved into one end of the inner sleeve through a sealing ring A, a limiting threaded sleeve is arranged in a groove at the other end of the inner sleeve, the threaded sleeve is in threaded connection with the joint, and the bottom surface of the inner sleeve and the joint are sealed by a sealing ring B; the other end of the joint is fixed with an oil pipe through a coupling, the oil pipe is sleeved in a large circular plate contact coupling, the large circular plate and a small circular plate are sealed through a sealing ring C, a sleeve is welded at the rear end of the circular plate, a transverse pipe is welded on a through hole in the sleeve, the small circular plate is additionally arranged on the sleeve, the large circular plate is eccentric by 10mm, the gap between the outer diameter of the oil pipe and the inner diameter of the sleeve is about 25mm, when the axial lead of the sucker rod and the axial lead of a well head do not exceed 25mm offset, the oil pipe can automatically align and center when the sucker rod is driven by a horse head to move up and down, overflowed oil can be collected from the transverse pipe, the device can automatically adjust the centering of the sucker rod, reduce eccentric wear of the.
Description
Technical Field
The utility model belongs to the technical field of the import cooperation device, concretely relates to oil field oil well wellhead assembly.
Background
With the annual reduction of individual blowout wells in oil fields throughout the country, the vast majority of oil wells have shifted to mechanical production. The oil production wellhead device is indispensable equipment for realizing mechanical oil production. The oil production wellhead device is in great demand all over the country, and the crude oil produced by mechanical oil production accounts for 90 percent of the total crude oil production all over the country, which indicates that the oil production wellhead device is quite important oil production equipment.
According to field investigation, the oil wells with the axial leads parallel to or inclined relative to the axial lead of the well head occupy a large number when the sucker rod works. Because the wellhead device of the oil well does not adopt a structure for adjusting the parallel deviation of two axial lines and a structure for adjusting the skew of the two axial lines, the leakage of crude oil of the oil extraction wellhead device exists, and the sealing ring of the blowout prevention box needs to be frequently replaced.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model aims at providing an oil field oil well wellhead assembly, but the centering of automatically regulated sucker rod reduces the sucker rod to preventing the eccentric wear of spouting the box sealing washer, compact structure, can adjust the parallel skew of diaxon core line and crooked novel oil recovery wellhead assembly.
In order to realize the purpose, the utility model discloses a technical scheme is:
an oil well wellhead device of an oil field comprises a pipe (4), and is characterized in that one end of the pipe (4) is connected with a pressing sleeve (3), and a pressing cap (2) is arranged outside the pressing sleeve (3); the other end of the pipe (4) is sleeved into one end of the inner sleeve (5) through a sealing ring A (6), a groove limiting threaded sleeve (7) is arranged at the other end of the inner sleeve (5), the threaded sleeve (7) is in threaded connection with the joint (9), and the bottom surface of the inner sleeve (5) and the joint (9) are sealed through a sealing ring B (8); the other end of the joint (9) is fixed with an oil pipe (10) through a coupling (16), the oil pipe (10) is sleeved with a large circular plate (11) to contact the coupling (16), the large circular plate (11) and a small circular plate (13) are sealed through a sealing ring C (12), a sleeve (14) is welded at the rear end of the circular plate (13), and a transverse pipe (15) is welded on a through hole in the sleeve (14).
The pressing cap and the pressing sleeve are fixed through a bolt (1).
The hole centers of the large circular plate (11) and the small circular plate (13) are eccentric by 10 mm.
The utility model has the advantages that:
the device can automatically adjust the centering of the sucker rod, reduce the eccentric wear of the sucker rod on the sealing ring of the blowout prevention box, prolong the service life of the sealing ring of the blowout prevention box, reduce the consumption of the sealing ring, reduce the workload of daily maintenance of an oil extraction worker, save part of material cost and have good use effect and application value.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the sleeve of the present invention.
Fig. 3 is the eccentric schematic diagram of the present invention.
Wherein, 1 is a bolt; 2, a pressing cap; 3, pressing sleeve; 4 is a tube; 5 is an inner sleeve; 6 is a sealing ring A; 7 is a screw sleeve; 8 is a sealing ring B; 9 is a joint; 10 is an oil pipe; 11 is a large round plate; 12 is a sealing ring C; 13 is a small circular plate; 14 is a sleeve; 15 is a transverse tube; and 16 is a coupling.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1, 2 and 3, the wellhead device for the oil well of the oil field comprises a pipe (4), and is characterized in that one end of the pipe (4) is connected with a pressing sleeve (3), and a pressing cap (2) is arranged outside the pressing sleeve (3); the other end of the pipe (4) is sleeved into one end of the inner sleeve (5) through a sealing ring A (6), a groove limiting threaded sleeve (7) is arranged at the other end of the inner sleeve (5), the threaded sleeve (7) is in threaded connection with the joint (9), and the bottom surface of the inner sleeve (5) and the joint (9) are sealed through a sealing ring B (8); the other end of the joint (9) is fixed with an oil pipe (10) through a coupling (16), the oil pipe (10) is sleeved with a large circular plate (11) to contact the coupling (16), the large circular plate (11) and a small circular plate (13) are sealed through a sealing ring C (12), a sleeve (14) is welded at the rear end of the circular plate (13), and a transverse pipe (15) is welded on a through hole in the sleeve (14).
The pressing cap and the pressing sleeve are fixed through a bolt (1).
The hole centers of the large circular plate (11) and the small circular plate (13) are eccentric by 10 mm.
The utility model discloses a theory of operation is:
install little plectane additional on the sleeve pipe, and big plectane eccentric 10mm, the oil pipe external diameter is 73mm and the sleeve pipe internal diameter is about 25mm for the clearance between 124mm, the coupling internal diameter that uses now is about 8mm for the clearance between 73mm with the oil pipe external diameter, under the condition that sucker rod axial lead and well head axial lead do not surpass 25mm offset, automatic centering can all be accomplished to oil pipe when the horse head drives sucker rod up-and-down motion to the oil that spills over can be followed and violently managed the collection.
Claims (3)
1. An oil well wellhead device of an oil field comprises a pipe (4), and is characterized in that one end of the pipe (4) is connected with a pressing sleeve (3), and a pressing cap (2) is arranged outside the pressing sleeve (3); the other end of the pipe (4) is sleeved into one end of the inner sleeve (5) through a sealing ring A (6), a groove limiting threaded sleeve (7) is arranged at the other end of the inner sleeve (5), the threaded sleeve (7) is in threaded connection with the joint (9), and the bottom surface of the inner sleeve (5) and the joint (9) are sealed through a sealing ring B (8); the other end of the joint (9) is fixed with an oil pipe (10) through a coupling (16), the oil pipe (10) is sleeved with a large circular plate (11) to contact the coupling (16), the large circular plate (11) and a small circular plate (13) are sealed through a sealing ring C (12), a sleeve (14) is welded at the rear end of the circular plate (13), and a transverse pipe (15) is welded on a through hole in the sleeve (14).
2. The wellhead assembly for oil wells in oil fields as claimed in claim 1, wherein the pressing cap and the pressing sleeve are fixed by bolts (1).
3. A wellhead device for oil wells in oil fields as claimed in claim 1, characterized in that the centers of the large circular plate (11) and the small circular plate (13) are eccentric by 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922137276.5U CN211777310U (en) | 2019-12-03 | 2019-12-03 | Oil well head device for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922137276.5U CN211777310U (en) | 2019-12-03 | 2019-12-03 | Oil well head device for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777310U true CN211777310U (en) | 2020-10-27 |
Family
ID=72972999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922137276.5U Active CN211777310U (en) | 2019-12-03 | 2019-12-03 | Oil well head device for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777310U (en) |
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2019
- 2019-12-03 CN CN201922137276.5U patent/CN211777310U/en active Active
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