CN103452489A - Wellhead four-way casing for oil production deep well - Google Patents
Wellhead four-way casing for oil production deep well Download PDFInfo
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- CN103452489A CN103452489A CN2012101781697A CN201210178169A CN103452489A CN 103452489 A CN103452489 A CN 103452489A CN 2012101781697 A CN2012101781697 A CN 2012101781697A CN 201210178169 A CN201210178169 A CN 201210178169A CN 103452489 A CN103452489 A CN 103452489A
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- hole
- seal groove
- oil
- sleeve pipe
- oil outlet
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Abstract
The invention discloses a wellhead four-way casing for an oil production deep well. The wellhead four-way casing for the oil production deep well comprises a sealing groove (1), a connecting hole (2), an inner conical surface (3), a threaded connecting hole (4), an oil outlet hole (5), a sealing groove (6), an inner cylindrical hole (7), an upper end surface (8), an inner cylindrical hole (9), an inner conical surface (10), a drum hole (11), a sealing groove (12), a connecting hole (13), an upper outer circle (14), a threaded connecting hole (15), a sealing groove (16), an oil outlet hole (17), a drum hole (18), a cylindrical hole (19), a cylindrical hole (20) and a lower end surface (21), flange plates on two end surfaces are provided with the sealing grooves (1 and 12) and the connecting holes (2 and 13), the two oil outlet holes (5 and 17) are radially formed in the middle of the wellhead four-way casing, the end surfaces of the oil outlet holes (5 and 17) are provided with the threaded connecting holes (4 and 15) ad the sealing grooves (6 and 16), and the two drum holes (11 and 18) are formed in a diameter inner hole.
Description
Technical field
The present invention relates to the four-way sleeve pipe, be specifically related to a kind of oil recovery deep-well well head four-way sleeve pipe, be applicable to shunting and the guiding of oil, saline solution, mirabilite, natural gas extraction well head.
Background technology
The exploitation of current underground fluid resource has developed into tertiary recovery, and primary oil recovery is the natural ability by stratum itself, and oil is ejected to ground, and tar productivity is very low, tar productivity 5%; After natural ability drops to a certain degree, at this time, just by water filling in oil reservoir, improve the pressure on stratum, by improving pressure, oil water from stratum to be extruded, this is secondary oil recovery, tar productivity 40%; Developed at present to the stratum injection of polymer, by chemical agent oil wash out, tar productivity is very high.These three kinds of oil production methods, the pressure ratio on stratum is higher, and especially latter two oil production method strata pressure is higher.Traditional well head four-way sleeve pipe, inner surface is columniform straight hole, when the fluid of underground high-voltage high-speed passes through well head four-way sleeve pipe, the shunting of clashing into both sides is taken over, and produces vibration, and the long-play connecting bolt is loosening, cause leakage phenomenon, very easily cause fire, the safety of harm people and equipment.
Summary of the invention
The object of the invention is to: a kind of oil recovery deep-well well head four-way sleeve pipe is provided, the inner chamber of four-way sleeve pipe is arranged to be a bit larger tham inner chamber latus rectum cydariform hole, be arranged on the pipeline of fluid issuing, play cushioning effect and absorption portion vibrations, avoid bolt looseness to cause leakage phenomenon.
The technical scheme that technical solution problem of the present invention is taked is: oil recovery deep-well well head four-way sleeve pipe comprises: seal groove, connecting hole, inner conical surface, threaded connection hole, oil outlet, seal groove, interior cylindrical hole, upper surface, interior cylindrical hole, inner conical surface, the cydariform hole, seal groove, connecting hole, upper cylindrical, threaded connection hole, seal groove, oil outlet, the cydariform hole, cylindrical hole, cylindrical hole and lower surface, the flange be connected with pipeline is arranged at the upper and lower two ends of well head four-way sleeve pipe, the flange of both ends of the surface is provided with seal groove and connecting hole, well head four-way sleeve pipe middle part radially arranges two oil outlets, the end face of oil outlet is provided with threaded connection hole and seal groove.
In oil recovery deep-well well head four-way sleeve pipe of the present invention, two cydariform holes are set in the latus rectum endoporus.
Beneficial effect of the present invention is: snubber partly vibrates, and avoids bolt looseness to cause leakage phenomenon; Simple in structure, strength increase, safe and reliable.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. seal groove, 2. connecting hole, 3. inner conical surface, 4. threaded connection hole, 5. oil outlet, 6. seal groove, 7. interior cylindrical hole, 8. upper surface, 9. cylindrical hole, 10. inner conical surface, 11. cydariform holes, 12. seal grooves, 13. connecting hole, cylindrical on 14., 15. threaded connection holes, 16. seal groove, 17. oil outlets, 18. cydariform holes, 19. cylindrical hole, 20. cylindrical holes, 21. lower surfaces.
The specific embodiment
As shown in Figure 1, this oil recovery deep-well well head four-way sleeve pipe comprises: seal groove 1, connecting hole 2, inner conical surface 3, threaded connection hole 4, oil outlet 5, seal groove 6, interior cylindrical hole 7, upper surface 8, interior cylindrical hole 9, inner conical surface 10, cydariform hole 11, seal groove 12, connecting hole 13, upper cylindrical 14, threaded connection hole 15, seal groove 16, oil outlet 17, cydariform hole 18, cylindrical hole 19, cylindrical hole 20 and lower surface 21, the flange be connected with pipeline is arranged at the upper and lower two ends of well head four-way sleeve pipe, the flange of both ends of the surface is provided with seal groove (1, 12) and connecting hole (2, 13), well head four-way sleeve pipe middle part radially arranges two oil outlets (5, 17), oil outlet (5, 17) end face is provided with threaded connection hole (4, 15) and seal groove (6, 16).
In oil recovery deep-well well head four-way sleeve pipe of the present invention, two cydariform holes (11,18) are set in the latus rectum endoporus.
Claims (2)
1. oil recovery deep-well well head four-way sleeve pipe, this oil recovery deep-well well head four-way sleeve pipe comprises: seal groove (1), connecting hole (2), inner conical surface (3), threaded connection hole (4), oil outlet (5), seal groove (6), interior cylindrical hole (7), upper surface (8), interior cylindrical hole (9), inner conical surface (10), cydariform hole (11), seal groove (12), connecting hole (13), upper cylindrical (14), threaded connection hole (15), seal groove (16), oil outlet (17), cydariform hole (18), cylindrical hole (19), cylindrical hole (20) and lower surface (21), the flange be connected with pipeline is arranged at the upper and lower two ends of well head four-way sleeve pipe, the flange of both ends of the surface is provided with seal groove (1, 12) and connecting hole (2, 13), well head four-way sleeve pipe middle part radially arranges two oil outlets (5, 17), oil outlet (5, 17) end face is provided with threaded connection hole (4, 15) and seal groove (6, 16).
2. oil recovery deep-well well head four-way sleeve pipe according to claim 1, is characterized in that: two cydariform holes (11,18) are set in the latus rectum endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101781697A CN103452489A (en) | 2012-06-01 | 2012-06-01 | Wellhead four-way casing for oil production deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101781697A CN103452489A (en) | 2012-06-01 | 2012-06-01 | Wellhead four-way casing for oil production deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103452489A true CN103452489A (en) | 2013-12-18 |
Family
ID=49735273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101781697A Pending CN103452489A (en) | 2012-06-01 | 2012-06-01 | Wellhead four-way casing for oil production deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103452489A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2444054Y (en) * | 2000-06-13 | 2001-08-22 | 王顺利 | Well head device for extracting oil with turning regulating type suspending device |
| CN201826804U (en) * | 2010-10-22 | 2011-05-11 | 江贵洪 | Twin-well ocean wellhead assembly |
| CN202176297U (en) * | 2011-06-16 | 2012-03-28 | 美钻石油钻采系统(上海)有限公司 | Multistage suspension composite type cross joint |
| CN202596591U (en) * | 2012-06-01 | 2012-12-12 | 洪泽东俊机械有限公司 | Four-way sleeve of well opening |
-
2012
- 2012-06-01 CN CN2012101781697A patent/CN103452489A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2444054Y (en) * | 2000-06-13 | 2001-08-22 | 王顺利 | Well head device for extracting oil with turning regulating type suspending device |
| CN201826804U (en) * | 2010-10-22 | 2011-05-11 | 江贵洪 | Twin-well ocean wellhead assembly |
| CN202176297U (en) * | 2011-06-16 | 2012-03-28 | 美钻石油钻采系统(上海)有限公司 | Multistage suspension composite type cross joint |
| CN202596591U (en) * | 2012-06-01 | 2012-12-12 | 洪泽东俊机械有限公司 | Four-way sleeve of well opening |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |