CN205100951U - Interior lubricated eccentric wear prevention oil production device - Google Patents
Interior lubricated eccentric wear prevention oil production device Download PDFInfo
- Publication number
- CN205100951U CN205100951U CN201520920429.2U CN201520920429U CN205100951U CN 205100951 U CN205100951 U CN 205100951U CN 201520920429 U CN201520920429 U CN 201520920429U CN 205100951 U CN205100951 U CN 205100951U
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- piston
- oil pipe
- oil
- valve
- polished rod
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Abstract
The utility model relates to an interior lubricated eccentric wear prevention oil production device, its technical scheme is: oil pipe's external fixation oil pumping pump barrel, oil pipe's bottom union tail, the sealed ware sealing connection of well head is passed through at oil pipe's top, and oil pipe's inside is equipped with the piston and connects the pole, and the piston connects the upper portion of pole to connect hollow polished rod, and the piston connects the sub -unit connection piston of pole, piston upper portion be equipped with valve on the strong double -walled piston, the lower part of piston is equipped with strong closed fixed valve, one side of oil pipe be equipped with the oiling and connect, the piston that passes through connect and be equipped with special check valve on the pole, the high pressure hose that produces oil is connected through the crossover sub in the outside of hollow polished rod, the beneficial effects of the utility model are that: through special check valve with hollow bar and oil pipe organic separate with the intercommunication, can become emollient with other liquid artificial completely replacement of lubricating oil in with the oil pipe annular space, through going out liquid between the hollow bar, changed liquid channel, solved the beam hanger in high moisture stage in oil field development later stage and oil pipe's friction medium.
Description
Technical field
The utility model relates to a kind of oil production equipment, particularly a kind of interior lubrication eccentric abrasion prevention extracting device of oil.
Background technology
Current oil field at home has arrived high water-cut stage, the composite water cut of Shengli Oil Field has exceeded 90%, and oil field adopts sucker rod pumping mode mostly, sucker rod drives reciprocating motion of the pistons to realize oil pumping in oil pipe, due to the formation water that the medium between beam hanger and oil pipe is high salinity in well, considerably increase the friction factor between beam hanger and oil pipe, some wells three months just can worn out oil pipe, cause the maintenance that stops production, though also have at present and use fuel-displaced technique in hollow stem, but due to the open communication of hollow stem and oil pipe annular space, tens meters of even hundreds of rice are displaced by the open fire in well in addition in the bottom of oil pipe, the position that exactly eccentric wear is the most serious just on pump near, fundamentally do not solve the friction media between high water-cut well beam hanger and oil pipe.
China Patent No. is 201220356703.4, patent name is a kind of " Novel sucker rod pipe anti-attrition device ", disclose a kind of Novel sucker rod pipe anti-attrition device and comprise hollow polished rod, polished rod sealer, fuel-displaced flexible pipe, oil pipe, hollow rod, oil well pump etc., fuel-displaced flexible pipe is connected from top to bottom successively with hollow polished rod, hollow rod, oil pump plunger piston, oil pipe connects oil pump sleeve, polished rod sealer is set on hollow polished rod, there is axially through fluid course in the top connection of described oil pump plunger piston, be communicated with plunger cavity and hollow rod inner chamber; By the production tree below polished rod sealer having an oiling branch road, in order to inject lubrication oil in oil pipe, cannot realize the lubrication of inside when hollow polished rod and piston extension bar move, effect is bad, causes piston extension bar eccentric wear serious.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of interior lubrication eccentric abrasion prevention extracting device of oil is provided, by changing the friction media between original R a T, by special one way valve, sliding agent is injected oil pipe and hollow stem annular space, be the abrasion media being transformed into oil lubrication the wear medium people of the High water cut extracted out in well, by hollow stem inner chamber fluid, greatly reduce the friction factor of hollow stem and oil pipe, changing oil pipe and hollow stem open communication in the past causes oil pipe annular space to have the pattern of extracting water in well out, water in oil pipe effectively can be split, what extend oil well is excused from a college course the cycle, heat can also wash between oil pipe and hollow stem, the constructions such as circulation wax removal.
Its technical scheme is: comprise the fuel-displaced flexible pipe of high pressure, crossover sub, hollow polished rod, oiling joint, oil pipe, special single-way valve, piston extension bar, valve on strong double-walled piston, oil pumping barrel, piston, strong enclosed standing valve, wellhead sealing device and tail pipe, the external stability oil pumping barrel of oil pipe, the bottom union tail of oil pipe, the top of oil pipe is tightly connected by wellhead sealing device, the inside of oil pipe is provided with piston extension bar, the top of piston extension bar connects hollow polished rod, the bottom of piston extension bar connects piston, described upper piston area is provided with valve on strong double-walled piston, the bottom of piston is provided with strong enclosed standing valve, the side of described oil pipe is provided with oiling joint, described is provided with special single-way valve by piston extension bar, the outside of hollow polished rod connects the fuel-displaced flexible pipe of high pressure by crossover sub.
The opening of above-mentioned special single-way valve connects one-way flow valve by spring, and the liquid of special single-way valve flow to hollow polished rod from oil pipe inner chamber.
The beneficial effects of the utility model are: organically to be separated with oil pipe by hollow stem by special single-way valve and be communicated with, artificial for other liquid in oil pipe annular space can be replaced as sliding agent by lubrication oil completely, by fluid between hollow stem, change liquid outlet channel, solve the beam hanger in latter period of oilfield development High water cut stage and the friction media of oil pipe, hollow stem drives reciprocating motion of the pistons in oil pipe, rubbing surface between hollow stem and oil pipe has the protection of one deck oil film, decrease friction factor, reduce frictional resistance, in well, High water cut liquid flows out in hollow stem, oil pipe and hollow stem annular space can not be entered, any wearing and tearing can not be caused to oil pipe and hollow stem, the one way valve of hollow stem lower end can to carry out in oil pipe wax removal and for the profit in flowline annular space, at little space Inner eycle, can change original well-flushing pattern, decrease the injury that formation causes.Strong enclosed standing valve and strong enclosed upper traveling valve, can make standing valve and travelling valve close by force, solve a difficult problem for oil well non-fluid because of gas lock, can improve pump efficiency simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of special single-way valve;
In upper figure: valve 8, oil pumping barrel 9 on the fuel-displaced flexible pipe 1 of high pressure, crossover sub 2, hollow polished rod 3, oiling joint 4, oil pipe 5, special single-way valve 6, piston extension bar 7, strong double-walled piston, piston 10, strong enclosed standing valve 11, wellhead sealing device 12 and tail pipe 13; One-way flow valve 6.1, spring 6.2.
Detailed description of the invention
1-2 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises the fuel-displaced flexible pipe 1 of high pressure, crossover sub 2, hollow polished rod 3, oiling joint 4, oil pipe 5, special single-way valve 6, piston extension bar 7, valve 8 on strong double-walled piston, oil pumping barrel 9, piston 10, strong enclosed standing valve 11, wellhead sealing device 12 and tail pipe 13, the external stability oil pumping barrel 9 of oil pipe 5, the bottom union tail 13 of oil pipe 5, the top of oil pipe 5 is tightly connected by wellhead sealing device 12, the inside of oil pipe 5 is provided with piston extension bar 7, the top of piston extension bar 7 connects hollow polished rod 3, the bottom of piston extension bar 7 connects piston 10, described piston 10 top is provided with valve 8 on strong double-walled piston, the bottom of piston 10 is provided with strong enclosed standing valve 11, the side of described oil pipe 5 is provided with oiling joint 4, described is provided with special single-way valve 6 by piston extension bar 7, the outside of hollow polished rod 3 connects the fuel-displaced flexible pipe 1 of high pressure by crossover sub 2.
Wherein, the opening of special single-way valve 6 connects one-way flow valve 6.1 by spring 6.2, the liquid of special single-way valve 6 flow to hollow polished rod from oil pipe inner chamber.
Operating principle:
Completion tubular column enters first down tail pipe, strong enclosed standing valve, pump barrel, oil pipe, installation well head, then piston, hollow piston extension bar, special single-way valve, hollow stem, the hollow polished rod with strong enclosed travelling valve is entered down, mounting shaft sealer for mouth, is connected high-pressure hose with ground flow by dedicated convert joint; Then inject a certain amount of lightweight dewatered oil or sliding agent by oiling joint to oil pipe and hollow stem annular space, the profit in former well annular space is entered hollow stem by the circulation of special single-way valve, is finally circulated to surface line; Then start oil pumper, drive piston stroking upward when oil pumper is up by polished rod and hollow stem, travelling valve is closed by force under the active force of deadweight and spring, generation negative pressure in pump, and strong enclosed standing valve is opened under the effect of negative pressure, and in well, liquid enters pump barrel; Oil pumper is descending drives descent of piston by polished rod and hollow stem, and standing valve is closed by force under the active force of self gravitation and spring, and in pump, pressure increases, and opens travelling valve, and the liquid in pump barrel is entered in hollow stem by piston, until ground.When needs cleaning tubing, reuse after can ground being replaced out to reclaim separation by special single-way valve sliding agent, the well that the content of wax is higher regularly can also inject hot water from wax deposition in hollow stem Inner eycle cleaning tubing from the annular space of oil pipe and hollow stem, simple and fast, save great amount of cost, avoid the injury brought from sleeve pipe circulation well cleanup formation.
The above is only preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme of above-mentioned elaboration to the utility model correct or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (2)
1. lubricate eccentric abrasion prevention extracting device of oil in one kind, it is characterized in that: comprise the fuel-displaced flexible pipe of high pressure (1), crossover sub (2), hollow polished rod (3), oiling joint (4), oil pipe (5), special single-way valve (6), piston extension bar (7), valve (8) on strong double-walled piston, oil pumping barrel (9), piston (10), strong enclosed standing valve (11), wellhead sealing device (12) and tail pipe (13), the external stability oil pumping barrel (9) of oil pipe (5), the bottom union tail (13) of oil pipe (5), the top of oil pipe (5) is tightly connected by wellhead sealing device (12), the inside of oil pipe (5) is provided with piston extension bar (7), the top of piston extension bar (7) connects hollow polished rod (3), the bottom of piston extension bar (7) connects piston (10), described piston (10) top is provided with valve (8) on strong double-walled piston, the bottom of piston (10) is provided with strong enclosed standing valve (11), the side of described oil pipe (5) is provided with oiling joint (4), described is provided with special single-way valve (6) by piston extension bar (7), the outside of hollow polished rod (3) connects the fuel-displaced flexible pipe of high pressure (1) by crossover sub (2).
2. interior lubrication eccentric abrasion prevention extracting device of oil according to claim 1, it is characterized in that: the opening of described special single-way valve (6) connects one-way flow valve (6.1) by spring (6.2), and the liquid of special single-way valve (6) flow to hollow polished rod (3) from oil pipe inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920429.2U CN205100951U (en) | 2015-11-18 | 2015-11-18 | Interior lubricated eccentric wear prevention oil production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920429.2U CN205100951U (en) | 2015-11-18 | 2015-11-18 | Interior lubricated eccentric wear prevention oil production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100951U true CN205100951U (en) | 2016-03-23 |
Family
ID=55516737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520920429.2U Expired - Fee Related CN205100951U (en) | 2015-11-18 | 2015-11-18 | Interior lubricated eccentric wear prevention oil production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927163A (en) * | 2016-04-26 | 2016-09-07 | 中国石油天然气股份有限公司 | Lubricating grease wax-proof and scale-proof oil production pipe column and application thereof |
-
2015
- 2015-11-18 CN CN201520920429.2U patent/CN205100951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927163A (en) * | 2016-04-26 | 2016-09-07 | 中国石油天然气股份有限公司 | Lubricating grease wax-proof and scale-proof oil production pipe column and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20161118 |