CN107178322A - A kind of hydraulic oil pipe buffer used for dropped from high place - Google Patents
A kind of hydraulic oil pipe buffer used for dropped from high place Download PDFInfo
- Publication number
- CN107178322A CN107178322A CN201710577454.9A CN201710577454A CN107178322A CN 107178322 A CN107178322 A CN 107178322A CN 201710577454 A CN201710577454 A CN 201710577454A CN 107178322 A CN107178322 A CN 107178322A
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- piston
- cylinder body
- pipe
- dropped
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 38
- 239000004576 sand Substances 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 17
- 239000013049 sediment Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
Abstract
The present invention, which is related to, discloses a kind of hydraulic oil pipe buffer used for dropped from high place, including sleeve pipe, sand sediment pipe, cylinder body, piston mechanism, stifled husky plate and plug connection composition.Described sand sediment pipe is arranged within sleeve pipe, the lower end of sand sediment pipe is connected to oil pipe section hoop, the inner arm centre position of oil pipe section hoop is provided with stifled sand plate, the lower end of oil pipe section hoop is connected to cylinder body, and the top of cylinder body arm is provided with two fluid spray orifices up and down, and cylinder body is built with piston and back-moving spring, the lower end of cylinder body cylinder cap by screwed connection, sealing ring is housed on piston arm, is screwed connection between piston and piston rod, and adds a clamp nut locking；Described piston-rod lower end flaps using screwed connection.Fallen buffer gear it is an advantage of the invention that being provided with a kind of hydraulic oil pipe in the bottom of sand sediment pipe, normal operation when can ensure installation or well workover, can make the pipe string of high-speed falling slow down to greatest extent, market prospects are superior under accident conditions again, production cost is low, stable.
Description
Technical field
The present invention relates to oil well bottom contingency protector, and in particular to a kind of hydraulic oil pipe buffer used for dropped from high place.
Background technology
The composition of oil well generally can be divided into ground installation and underground facility two parts, underground facility be broadly divided into beam hanger,
Oil pipe and oil well pump three-major-items, are referred to as bar, pipe, pump.Its structure is：All oil pipes are connected by screwed connection, the oil pipe of bottom
Connect oil pump, oil pump lower end union tail, screen casing, sand sediment pipe.Beam hanger upper end connects polished rod eye, bottom connection oil pump piston.
Current production well does not use oil pipe buffer used for dropped from high place.In production, because fluid burn into screw thread is impaired, oil
The factor such as bar and oil pipe eccentric wear, causes screw thread dropout shock of a fall artificial bottom of a well between oil pipe, causes oil pipe, beam hanger deformation thing
Therefore.Salvage expenses tens thousand of members, at most hundreds thousand of members, and have 20% -50% oil pipe, beam hanger needs at least needed for well workover
Renew, emergency repair time one week at least, at most some months, indivedual accident wells can only be forced to scrap because that can not salvage, cause directly warp
The up to millions of members of Ji loss.Oil pipe falling accident occurs for annual You Approximately 30 percent producing well according to statistics.
For pre- preventing oil pipe and the deformation of beam hanger severe bends, it is necessary to slow down the speed of falling of tubing string to greatest extent, use
Hydraulic oil pipe buffer used for dropped from high place can make one's wish fulfilled, and cushioning effect mitigates the impact to shaft bottom, so as to reduce oil pipe and beam hanger
Economic loss caused by deformation.
The present invention has filled up the blank of the technical field, and oil field production cost will be substantially reduced after promoting the use of, and improves
The economic benefit of enterprise.
The content of the invention
It is an object of the invention to can during both having ensured well workover there is provided one kind for above-mentioned defect of the prior art
Normal operation, high-speed falling pipe string can be reduced impact hydraulic oil pipe buffer used for dropped from high place under accident conditions again.In order to realize
Above-mentioned purpose, the technical solution adopted by the present invention is：A kind of hydraulic oil pipe buffer used for dropped from high place, including sleeve pipe, sand sediment pipe, oil pipe
Save hoop, cylinder body, piston body, piston rod, back-moving spring, sealing ring, cylinder cap, stifled husky plate and plug connection composition.Described sand setting
Pipe is arranged within sleeve pipe, and the lower end of sand sediment pipe is connected to oil pipe section hoop, and the inner arm centre position of oil pipe section hoop is provided with stifled sand
Plate, the lower end of oil pipe section hoop is connected to cylinder body；The top of the cylinder body arm provided with up and down two fluid spray orifices, cylinder body built with
Piston body and back-moving spring, the lower end of cylinder body by screwed connection is equipped with sealing ring on cylinder cap, piston body；Described piston body
It is screwed connection between piston rod, and installs on the piston rod of connecting portion a clamp nut locking additional；Described piston
Bar lower end plug using screwed connection.
The beneficial effects of the invention are as follows：It is rational in infrastructure, when accident occurs for oil well, shadow of the pipe string by acceleration of gravity
Ring, speed can be increasingly faster, when pipe string impacts the moment of artificial bottom of a well, what is contacted first with artificial bottom of a well is piston-rod lower end
Plug, plug is pushed up piston by piston rod, and overcomes the liquid in the elastic force of back-moving spring, cylinder body to receive pressure
Sprayed after power from lower fluid spray orifice and upper fluid spray orifice, but because the aperture of upper and lower fluid spray orifice is limited, piston is in cylinder body
Movement velocity slows down rapidly, when piston movement to lower fluid spray orifice, and the speed that the liquid in cylinder body outwards sprays further subtracts
Small, so, the speed that piston is moved in cylinder body also can further slow down, so as to greatly reduce the pipe string that falls to artificial bottom of a well
Impact, makes oil pipe, beam hanger not but not deforms or few deformation, reduce material replacing, and reduces the difficulty of salvaging, so that
The economic loss caused after accident occurs is reduced, production cost has been saved.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
In figure：1. 5. times cylinder bodies of 6. back-moving spring of fluid spray orifice 7. of fluid spray orifice on the stifled husky plate 4. of the oil pipe section hoop 3. of sand sediment pipe 2.
8. the clamp nut of 13. plug of piston body 9. sealing ring, 10. cylinder cap, 11. piston rod, 12. sleeve pipe 14..
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As a kind of hydraulic oil pipe buffer used for dropped from high place shown in figure, including sleeve pipe, sand sediment pipe, oil pipe section hoop, cylinder body, piston
Body, piston rod, back-moving spring, sealing ring, cylinder cap, stifled husky plate and plug connection composition.Described sand sediment pipe 1 is arranged on sleeve pipe 12
Within, the lower end of sand sediment pipe is connected to lengthen oil pipe section hoop 2, and the inner arm centre position of oil pipe section hoop is provided with stifled sand plate 3, oil pipe
The lower end of section hoop is connected to cylinder body 7；The top of the cylinder body arm is provided with two fluid spray orifices 4,5 up and down, wherein lower fluid spray
The diameter in hole 5 is more than upper fluid spray orifice 4, and cylinder body passes through screwed connection built with piston body 8 and back-moving spring 6, the lower end of cylinder body
And sealing ring 9 is housed on cylinder cap 10, piston body；It is screwed connection between described piston body 8 and piston rod 11, and in connecting portion
A clamp nut 14 is installed additional on the piston rod 11 of position to lock；The described lower end of piston rod 11 plug 13 using screwed connection.
When installing or overhauling lower oil pipe, speed is slower, generally per second 1-3 meters, and 5 meters per second are most can reach soon, by every
Under the speed of 5 meters of second during oil pipe, the elastic force of back-moving spring 6 makes piston 8 without motion in normal direction cylinder body 7, therefore does not interfere with normal work
Industry.When pipe string sends accidental falling, pipe string impacts the moment of artificial bottom of a well, and what is contacted first with artificial bottom of a well is piston rod 11
The plug 13 of lower end, plug 13 is pushed up piston 8 by piston rod 11, is overcome in the elastic force of back-moving spring 6, cylinder body 7
Liquid is received after pressure to be sprayed from lower fluid spray orifice 5 and upper fluid spray orifice 4, but because the aperture of upper and lower fluid spray orifice is limited, it is living
8 movement velocity in cylinder body 7 of plug will slow down rapidly, when piston 8 moves to lower fluid spray orifice 5, liquid in cylinder body 7 to
The speed of outer ejection further reduces, so, and the speed of motion in cylinder body 7 of piston 8 also can further slow down, so as to subtract significantly
Small impact of the pipe string to artificial bottom of a well of falling, makes oil pipe, beam hanger not but not deforms or few deformation, reduce material replacing, and
And the difficulty of salvaging is reduced, so as to reduce the economic loss caused after accident occurs.Hydraulic oil pipe buffer used for dropped from high place exists
Stifled husky plate 12 is provided with oil pipe section hoop 1, sand plate 12 is blocked up and splits sand sediment pipe and buffer oil pocket, tail pipe, screen casing and sand sediment pipe
After the impurity such as the silt of precipitation stop, cylinder body 5 is set not enter the impurity things such as silt.
Present disclosure is not limited only to cited by embodiment, and those of ordinary skill in the art are by reading explanation of the invention
Book and any equivalent conversion taken technical solution of the present invention, are that the claim of the present invention is covered.
Claims (4)
1. a kind of hydraulic oil pipe buffer used for dropped from high place, including it is sleeve pipe, sand sediment pipe, oil pipe section hoop, cylinder body, piston body, piston rod, multiple
Position spring, sealing ring, cylinder cap, flaps and stifled husky plate connection composition, it is characterised in that described sand sediment pipe (1) is arranged on set
Manage within (12), the lower end of sand sediment pipe is connected to oil pipe section hoop (2), and the lower end of oil pipe section hoop is connected to cylinder body (7), and cylinder body is built-in
Have and sealing ring (9) is housed on piston body (8) and back-moving spring (6), piston body, be silk between piston body (8) and piston rod (11)
Button connection, and install clamp nut (14) locking additional on the piston rod (11) of connecting portion, piston rod (11) lower end is used
Plug (13) in screwed connection.
2. a kind of hydraulic oil pipe buffer used for dropped from high place according to claim 1, it is characterised in that oil pipe section hoop (2) it is interior
Arm centre position is provided with stifled sand plate (3).
3. a kind of hydraulic oil pipe buffer used for dropped from high place according to claim 1, it is characterised in that cylinder body (7) arm
Top is provided with two fluid spray orifices (4), (5) up and down.
4. a kind of hydraulic oil pipe buffer used for dropped from high place according to claim 1, it is characterised in that described cylinder body (7)
Lower end cylinder cap (10) by screwed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577454.9A CN107178322A (en) | 2017-07-15 | 2017-07-15 | A kind of hydraulic oil pipe buffer used for dropped from high place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577454.9A CN107178322A (en) | 2017-07-15 | 2017-07-15 | A kind of hydraulic oil pipe buffer used for dropped from high place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107178322A true CN107178322A (en) | 2017-09-19 |
Family
ID=59837385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710577454.9A Pending CN107178322A (en) | 2017-07-15 | 2017-07-15 | A kind of hydraulic oil pipe buffer used for dropped from high place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107178322A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432326Y (en) * | 2000-06-28 | 2001-05-30 | 曹允良 | Downhole pipe string breakaway vibration damper |
| CN2477809Y (en) * | 2001-03-30 | 2002-02-20 | 赵文泉 | Hydraulic shock reduction anti-dropping appts. |
| CN2697300Y (en) * | 2003-12-31 | 2005-05-04 | 汪晶 | Shock-damping dropping resisting device for sucker rod |
| CN202108477U (en) * | 2011-04-22 | 2012-01-11 | 中国石油天然气股份有限公司 | Plunger water pumping gas production well mouth buffer |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
| CN102678809A (en) * | 2012-05-21 | 2012-09-19 | 宁波科赛特气动科技有限公司 | Hydraulic buffer |
| CN102705422A (en) * | 2012-05-21 | 2012-10-03 | 宁波科赛特气动科技有限公司 | Improved structure of oil pressure buffer |
| CN203948075U (en) * | 2013-11-13 | 2014-11-19 | 中国石油天然气股份有限公司 | A kind of reverse-filling formula oil well pipe falling proof device |
| CN204140749U (en) * | 2014-02-21 | 2015-02-04 | 温州泓力达自动化设备有限公司 | A kind of hydraulic buffer |
| CN204847668U (en) * | 2015-07-22 | 2015-12-09 | 宁波西博恩新材料科技有限公司 | Elevator safe operation protection buffer |
| CN204920834U (en) * | 2015-09-25 | 2015-12-30 | 曹许明 | Reducing formula oil pipe buffer |
| CN205876219U (en) * | 2016-08-08 | 2017-01-11 | 武际峰 | Sucker rod crash bar device |
| CN207315250U (en) * | 2017-07-15 | 2018-05-04 | 延长油田股份有限公司靖边采油厂 | A kind of hydraulic oil pipe buffer used for dropped from high place |
-
2017
- 2017-07-15 CN CN201710577454.9A patent/CN107178322A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432326Y (en) * | 2000-06-28 | 2001-05-30 | 曹允良 | Downhole pipe string breakaway vibration damper |
| CN2477809Y (en) * | 2001-03-30 | 2002-02-20 | 赵文泉 | Hydraulic shock reduction anti-dropping appts. |
| CN2697300Y (en) * | 2003-12-31 | 2005-05-04 | 汪晶 | Shock-damping dropping resisting device for sucker rod |
| CN202108477U (en) * | 2011-04-22 | 2012-01-11 | 中国石油天然气股份有限公司 | Plunger water pumping gas production well mouth buffer |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
| CN102678809A (en) * | 2012-05-21 | 2012-09-19 | 宁波科赛特气动科技有限公司 | Hydraulic buffer |
| CN102705422A (en) * | 2012-05-21 | 2012-10-03 | 宁波科赛特气动科技有限公司 | Improved structure of oil pressure buffer |
| CN203948075U (en) * | 2013-11-13 | 2014-11-19 | 中国石油天然气股份有限公司 | A kind of reverse-filling formula oil well pipe falling proof device |
| CN204140749U (en) * | 2014-02-21 | 2015-02-04 | 温州泓力达自动化设备有限公司 | A kind of hydraulic buffer |
| CN204847668U (en) * | 2015-07-22 | 2015-12-09 | 宁波西博恩新材料科技有限公司 | Elevator safe operation protection buffer |
| CN204920834U (en) * | 2015-09-25 | 2015-12-30 | 曹许明 | Reducing formula oil pipe buffer |
| CN205876219U (en) * | 2016-08-08 | 2017-01-11 | 武际峰 | Sucker rod crash bar device |
| CN207315250U (en) * | 2017-07-15 | 2018-05-04 | 延长油田股份有限公司靖边采油厂 | A kind of hydraulic oil pipe buffer used for dropped from high place |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170919 |