CN101984215A - Tubing drain - Google Patents
Tubing drain Download PDFInfo
- Publication number
- CN101984215A CN101984215A CN2010105523500A CN201010552350A CN101984215A CN 101984215 A CN101984215 A CN 101984215A CN 2010105523500 A CN2010105523500 A CN 2010105523500A CN 201010552350 A CN201010552350 A CN 201010552350A CN 101984215 A CN101984215 A CN 101984215A
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- China
- Prior art keywords
- oil
- friction mechanism
- drain
- sealing shroud
- gland cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention provides a tubing drain. The tubing drain consists of a friction mechanism, an inner tube and a gland cover, wherein the friction mechanism and the gland cover are sleeved outside the inner tube; the friction mechanism is arranged on the gland cover; an oil drain hole is arranged on the lower part of the inner tube; a thread is arranged on the drain hole, and is coupled with the inner thread on the upper part of the gland cover; and the lower part of the gland cover covers the drain hole on the lower part of the inner tube. When the tubing drain is connected to a defueling pump, and an oil extraction tube is required to drain oil in next operation, the oil extraction tube is assembled to ensure that two raised keys are buckled together, the inner tube is rotated, and the friction mechanism and the gland cover stand still under the friction force action between the friction mechanism and a sleeve; and under the action of turning moment, the coupled threads of the inner tube and the gland cover are released, and the gland cover moves upwards, coverage of the oil drain hole is lost to ensure that the inside and outside of the drain hole on the inner tube are communicated to drain oil. Oil drainage is performed by rotating the oil tube after the oil tube is lifted upwards in oil draining, the time for draining oil can be manually controlled at will, so the tubing drain is convenient in oil drainage, reliable in operation, high in operation success rate, simple in structure and convenient in processing and use.
Description
Technical field
The present invention is the downhole tool of oil field oil recovery usefulness, is a kind of tubing drain.
Background technology
Existing bleeder kind is a lot, as Chinese patent application 96238554.9 " a kind of split type oil riser bleeder ", its brace type is separated lock assembly and will be contacted and draining with the draining assembly when carrying oil pipe last, will cause bleeder to open draining when running in the operation workman operate miss or the process of going into the well when new situation needs to carry oil pipe, make operation unsuccessful.Also there is the problem of above-mentioned patent in Chinese patent application 00247456.5 " oil riser bleeder " and for example.The operating worker operate miss is the custom that is difficult to change that itself needs the operation of carrying oil pipe and form for many years because of in the following oil pipe process, all might cause the draining of opening of this type of bleeder.Chinese patent application 00258996.6 " slip-type rotation bleeder ", slips can not radially open, and can not be stuck on the sleeve pipe, so draining not is that slips can radially open and is stuck on the sleeve pipe, slips can not be regained sometimes and blocks tubing string behind the draining, causes the accident.Chinese patent application 2007200290118 " a kind of tubing drain " and for example, it simple in structure, but its sealing shroud (5) and interior pipe (3) are for being threaded, because there are problems such as fouling, corrosion in the well that has, the connecting thread that causes sealing shroud (5) and interior pipe (3) easily can't get loose and can not draining.Chinese patent application 200510043764.x " oil riser bleeder " and for example, the tubing string elongation is shortened and is caused bleeder action draining during for fear of oil pumping, can not arrive lock ball (5) when making its release cover (4) inner reaming be in tubing string elongation shortening locates, need design interior pipe (1), release cover (4) very long, and to go up the elongation that causes when oil well pump work is satisfied in processing at interior pipe (1) and shorten the rail groove that requires, interior pipe (1) must be selected thick tubing for use again, therefore, cost of materials and processing charges are all higher.
Summary of the invention
The objective of the invention is to avoid the deficiency of existing bleeder, a kind of tubing drain is provided, carry the draining of opening of oil pipe realization bleeder when carrying oil pipe on the rotation back.
The object of the present invention is achieved like this: be made up of friction mechanism, interior pipe, sealing shroud, pipe was outside in friction mechanism, sealing shroud were sleeved on, friction mechanism is on sealing shroud, the draining hole is arranged at interior pipe bottom, the draining hole of pipe bottom in the sealing shroud bottom covers, there is protruding key the friction mechanism lower end, there is protruding key the sealing shroud upper end, pin nose is installed on inner pipe, perpendicular rail groove, horizontal rail groove are set on the sealing shroud, perpendicular rail groove, horizontal rail groove communicate, and the pin rear end is in the horizontal rail groove on the sealing shroud, and pin can arrive in the perpendicular rail groove on the sealing shroud.
The invention has the beneficial effects as follows: during draining of the present invention by on carry behind the oil pipe rotation pipeline and carry the oil pipe draining on again, do not need to unscrew screw thread, draining is convenient, reliable operation, the job success ratio height, the present invention does not need to process on inner pipe rail groove, simple in structure, cost of materials and processing charges are low, are convenient to processing, help promoting the use of.
Description of drawings
Fig. 1 is the assembling drawing of the embodiment of the invention.
Fig. 2 is the raceway surface expanded view of part 5 among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described.
Embodiments of the invention are by friction mechanism 1, interior pipe 3, sealing shroud 5, pin 6 is formed, friction mechanism 1, pipe 3 outsides in sealing shroud 5 is sleeved on, friction mechanism 1 is on sealing shroud 5, draining hole 7 is arranged at interior pipe 3 bottoms, the draining hole 7 of pipe 3 bottoms in sealing shroud 5 bottoms cover, there is protruding key 2 friction mechanism 1 lower end, there is protruding key 4 sealing shroud 5 upper ends, manage on 3 in pin 6 front ends are installed in, perpendicular rail groove 8 is set on the sealing shroud 5, horizontal rail groove 9, perpendicular rail groove 8, horizontal rail groove 9 communicates, and pin 6 rear ends are in 9 li of horizontal rail grooves on the sealing shroud 5, and pin 6 can arrive 8 li of perpendicular rail grooves on the sealing shroud 5.Protruding key 2, protruding key 4 are buckled together can transfer torque, does not rotate so that make friction mechanism 1 fix sealing shroud 5.Protruding key 2 can process from friction mechanism 1, parts also can be installed in addition form protruding key 2, and protruding key 4 can process on sealing shroud 5 lower surfaces, parts also can be installed in addition form protruding key 4.Friction mechanism 1 lower end and sealing shroud 5 can link into an integrated entity, but this structure friction mechanism 1 easy wear sleeve, because the tubing string wriggling that produces in the oil well pump course of work can cause friction mechanism 1 together to move with tubing string, and friction mechanism 1 tightly is attached on the sleeve pipe, so easy wear sleeve, therefore, grand between friction mechanism 1 lower end and sealing shroud 5 upper ends have a segment distance, be together not move with tubing string for the tubing string that produces in oil well pump course of work wriggling can not cause friction mechanism 1, the distance of friction mechanism 1 lower end and sealing shroud 5 upper ends must be greater than the tubing string wriggling amount that produces in the oil well pump course of work, and friction mechanism 1 does not together move with tubing string in the time of could guaranteeing oil well pump work.Last supporting positive cover is arranged at interior pipe 3 tops, on interior pipe 3 lower thread following supporting positive cover is arranged, and last supporting positive cover, following supporting positive cover external diameter are ￠ 108-￠ 154mm.
Brake pad external diameter on the friction mechanism 1 is greater than casing inner diameter, can change with casing inner diameter, under spring action, brake pad is close to internal surface of sleeve pipe, and produce friction between the sleeve pipe, when the needs draining, on carry oil pipe, the protruding key 2 of friction mechanism 1 lower end and the protruding key 4 of sealing shroud 5 upper ends are buckled together, again the rotation in the pipe 3, sealing shroud 5 is integral with friction mechanism 1 and does not rotate, pin 6 moves to the lower end of the perpendicular rail groove 8 on the sealing shroud 59 li of the horizontal rail grooves on the sealing shroud 5, carries oil pipe on again, and interior pipe 3 is up, the perpendicular rail groove 8 of pin 6 on sealing shroud 5 is up, sealing shroud 5 does not move under the effect of friction mechanism 1, and sealing shroud 5 produces relative motion with interior pipe 3, and sealing shroud 5 is the draining hole 7 of pipe 3 bottoms in covering not, draining hole 7 arrives perpendicular rail groove 8 places of sealing shrouds 5, the oil of removing heat by catharsis of draining hole 7 internal and external antithetical couplets in making on the pipe 3.Interior pipe 7 places, draining hole, 3 bottom require wall thickness thicker, are economical with materials, can be designed to two bodies.
Claims (1)
1. tubing drain, by friction mechanism (1), interior pipe (3), sealing shroud (5) is formed, friction mechanism (1), sealing shroud (5) is sleeved on interior pipe (3) outside, friction mechanism (1) is on sealing shroud (5), draining hole (7) is arranged at interior pipe (3) bottom, the draining hole (7) of pipe (3) bottom in sealing shroud (5) bottom covers, there is protruding key (2) friction mechanism (1) lower end, there is protruding key (4) sealing shroud (5) upper end, it is characterized in that: pin (6) front end is installed on the interior pipe (3), perpendicular rail groove (8) is set on the sealing shroud (5), horizontal rail groove (9), perpendicular rail groove (8), horizontal rail groove (9) communicates, pin (6) rear end is in horizontal rail groove (9) lining on the sealing shroud (5), and pin (6) can arrive perpendicular rail groove (8) lining on the sealing shroud (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105523500A CN101984215A (en) | 2010-11-10 | 2010-11-10 | Tubing drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105523500A CN101984215A (en) | 2010-11-10 | 2010-11-10 | Tubing drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101984215A true CN101984215A (en) | 2011-03-09 |
Family
ID=43641385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105523500A Pending CN101984215A (en) | 2010-11-10 | 2010-11-10 | Tubing drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101984215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810081A (en) * | 2019-04-12 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil drainage device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909326A (en) * | 1989-07-05 | 1990-03-20 | Owen Thomas R | Tubing unloader |
| US5782303A (en) * | 1996-09-04 | 1998-07-21 | Christian; J. B. | Method and apparatus for draining fluids from tubing |
| CN201103379Y (en) * | 2007-10-10 | 2008-08-20 | 白霞 | Oil tube discharging device |
| CN201843584U (en) * | 2010-11-10 | 2011-05-25 | 白霞 | Tubing draining device |
-
2010
- 2010-11-10 CN CN2010105523500A patent/CN101984215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909326A (en) * | 1989-07-05 | 1990-03-20 | Owen Thomas R | Tubing unloader |
| US5782303A (en) * | 1996-09-04 | 1998-07-21 | Christian; J. B. | Method and apparatus for draining fluids from tubing |
| CN201103379Y (en) * | 2007-10-10 | 2008-08-20 | 白霞 | Oil tube discharging device |
| CN201843584U (en) * | 2010-11-10 | 2011-05-25 | 白霞 | Tubing draining device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810081A (en) * | 2019-04-12 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil drainage device |
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Legal Events
| 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: 20110309 |