CN110700791A - Environment-friendly oil drainage tool for oil pipe - Google Patents
Environment-friendly oil drainage tool for oil pipe Download PDFInfo
- Publication number
- CN110700791A CN110700791A CN201911058064.6A CN201911058064A CN110700791A CN 110700791 A CN110700791 A CN 110700791A CN 201911058064 A CN201911058064 A CN 201911058064A CN 110700791 A CN110700791 A CN 110700791A
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- Prior art keywords
- tooth
- threaded connection
- shaped
- oil
- guide
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 44
- 239000010779 crude oil Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an environment-friendly oil drainage tool for an oil pipe, which comprises a central pipe, wherein the upper end of the central pipe is in threaded connection with an upper joint, the lower end of the central pipe is in threaded connection with a lower joint, the upper joint is provided with a circumferential strip-shaped hole groove and an oil drainage hole I, the upper joint is in threaded connection with a protection ring, the upper joint is sleeved with a sealing sleeve, the sealing sleeve is provided with a toothed rear end, and the sealing sleeve is provided with a pin shaft hole and an; the middle part of the central tube is sleeved with a tooth-shaped retainer ring, a centering body main body and a friction block, the rear part of the guide sleeve is provided with a guide groove, the lower joint is provided with a guide pin, and the guide pin is arranged in the guide groove; and the lower end of the lower connector is in threaded connection with an anti-collision ring. The invention can effectively prevent the crude oil from overflowing from the oil pipe to the wellhead to cause environmental pollution during operation through simple operations such as lifting, rotating and the like, thereby improving the operation condition of the wellhead.
Description
Technical Field
The invention relates to an oil field oil extraction operation tool, in particular to an oil pipe environment-friendly oil drainage tool.
Background
In the process of carrying out secondary construction operation on an oil well on site by an oil field operation team, because residual oil in the oil pipe can not be discharged, the oil overflows to cause environmental pollution when the oil pipe string is lifted, the crude oil exploitation cost and the difficulty of well head operation are increased, and the construction progress is also influenced. With the increasing requirements of various domestic oil fields on green and environment-friendly operation and construction, the problem is urgently needed to be effectively solved in terms of economic benefit and long-term social benefit.
Disclosure of Invention
In order to make up the defects of the prior art, the invention aims to provide an environment-friendly oil drainage tool for an oil pipe, which can effectively prevent crude oil from overflowing from the oil pipe to a wellhead to cause environmental pollution during operation through simple operations such as lifting, rotating and the like, so that the operation condition of the wellhead is improved.
The invention aims to realize the following technical scheme that the environment-friendly oil drainage tool for the oil pipe comprises a central pipe, wherein the upper end of the central pipe is in threaded connection with an upper joint, the lower end of the central pipe is in threaded connection with a lower joint, the upper joint is provided with a circumferential strip-shaped hole groove and an oil drainage hole I, and a sealing ring is arranged in the oil drainage hole I; the upper joint is in threaded connection with a protection ring, a sealing sleeve is sleeved on the upper joint and provided with a toothed rear end, a pin shaft hole and an oil drainage hole II are formed in the sealing sleeve, a positioning pin is arranged in the pin shaft hole, the positioning pin is screwed into the sealing sleeve in a threaded manner, and a cylindrical shaft part at the lower part of the positioning pin enters a strip-shaped hole groove of the upper joint;
the middle part of the central tube is sleeved with a tooth-shaped check ring, a centralizing body main body and a friction block, the tooth-shaped check ring is provided with a tooth-shaped front end, and the tooth-shaped front end of the tooth-shaped check ring can be meshed with the tooth-shaped rear end of the sealing sleeve; the inner side of the tooth-shaped retainer ring is provided with a step I and a step II; the lower adapter is sleeved with a guide sleeve, and the inner side of the front end of the guide sleeve is provided with a step III and a step IV; the two ends of the centralizing body main body are respectively provided with a boss I and a boss II, the boss I is in threaded connection with the step I, and the boss II is in threaded connection with the step III; a plurality of spring mounting holes are formed in the friction block, compression springs are arranged in the spring mounting holes, and two ends of the friction block are respectively arranged below the step II and the step IV;
the rear part of the guide sleeve is provided with a guide groove, the lower joint is provided with a guide pin, and the guide pin is arranged in the guide groove; and the lower end of the lower connector is in threaded connection with an anti-collision ring.
The invention has the beneficial effects that:
(1) when the pump is started, the tool can enable residual oil in the oil pipe to be discharged into the oil sleeve through simple operations such as lifting, rotating and the like, and can effectively prevent crude oil from overflowing from the oil pipe to cause environmental pollution, so that the operation condition of the wellhead is improved.
(2) Under the condition that the tubular column meets soft stifled or the pump plunger card is dead, can open this instrument draining passageway backwash and remove the pipe pole and block up, can normally wash the well, need not the mud wax on the clean tubular column in ground, reduce artifical intensity of labour, shorten the activity duration, improve work efficiency, save time, reduce the operating cost, satisfy the needs of oil field on-the-spot production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the upper joint and the sealing sleeve according to the present invention;
FIG. 3 is a schematic view of a top connector structure;
FIG. 4 is a schematic view of the seal cartridge structure;
FIG. 5 is a schematic view of a tooth-shaped retainer ring;
FIG. 6 is a schematic view of a seal ring structure;
fig. 7 is a schematic structural diagram of the centralizer.
The names of the structures in fig. 1-7 are: the oil leakage device comprises an upper joint 1, a protection ring 2, a sealing sleeve 3, a positioning pin 4, a sealing ring 5, a central pipe 6, a tooth-shaped check ring 7, a centralizer main body 8, a friction block 9, a compression spring 10, a guide sleeve 11, a lower joint 12, an anti-collision ring 13, a strip-shaped hole groove 14, an oil leakage hole I15, a tooth-shaped rear end 16, a pin shaft hole 17, an oil leakage hole II 18, a tooth-shaped front end 19, a step I20, a step II 21, a step III 22, a step IV 23, a boss I24, a boss II 25, a guide groove 26, an oblique guide groove 27, a longitudinal guide groove 28 and a guide pin 29.
Detailed Description
Referring to fig. 1 to 7, the specific structure of the present embodiment is: an oil pipe oil drainage device comprises a central pipe 6, wherein the upper end of the central pipe 6 is in threaded connection with an upper joint 1, the lower end of the central pipe 6 is in threaded connection with a lower joint 12, a circumferential strip-shaped hole groove 14 and an oil drainage hole I15 are formed in the upper joint 1, and a sealing ring 5 is arranged in the oil drainage hole I15; the upper joint 1 is in threaded connection with a protection ring 2, the upper joint 1 is sleeved with a sealing sleeve 3, the sealing sleeve 3 is located behind the protection ring 2, the sealing sleeve 3 is provided with a toothed rear end 16, the sealing sleeve 3 is provided with a pin shaft hole 17 and an oil drainage hole II 18, a positioning pin 4 is arranged in the pin shaft hole 17, the positioning pin 4 is screwed into the sealing sleeve 3 in a threaded manner, and a cylindrical shaft part at the lower part of the positioning pin 4 enters a strip-shaped hole groove 14 of the upper joint 1 to limit the sealing sleeve 3 and the upper joint 1;
the middle part of the central tube 6 is sleeved with a tooth-shaped retainer ring 7, a centralizing body main body 8 and a friction block 9, the tooth-shaped retainer ring 7 is provided with a tooth-shaped front end 19, and the tooth-shaped front end 19 of the tooth-shaped retainer ring 7 is meshed with a tooth-shaped rear end 16 of the seal sleeve 3; the inner side of the tooth-shaped retainer ring 7 is provided with a step I20 and a step II 21; the lower joint 12 is sleeved with a guide sleeve 11, and the inner side of the front end of the guide sleeve 11 is provided with a step III 22 and a step IV 23; a boss I24 and a boss II 25 are respectively arranged at two ends of the centralizing body main body 8, the boss I24 is in threaded connection with the step I20, and the boss II 25 is in threaded connection with the step III 22; a plurality of spring mounting holes 26 are formed in the friction block 9, compression springs 10 are arranged in the spring mounting holes 26, and two ends of the friction block 9 are respectively arranged below the step II 21 and the step IV 23;
a guide groove 26 is formed in the rear part of the guide sleeve 11, and a downward inclined guide groove 27 and a longitudinal guide groove 28 are formed in the guide groove 26; a guide pin 29 is arranged on the lower joint 12, and the guide pin 29 is arranged in the guide groove 26; the lower end of the lower joint 12 is connected with an anti-collision ring 13 through threads.
The use method and the principle of the invention are as follows:
(1) a compression spring 10 is placed in a hole of the friction block 9 and then is placed in the centralizing body main body 8, the lower part of the centralizing body main body 8 is connected with a guide sleeve 11 through threads after being installed, and the guide sleeve 11 is sleeved into the central tube 6 from the upper end after being connected with the centralizing body 8; the upper joint 1 is connected to the lower end of the oil pipe, and the lower joint 12 is connected to the upper end of the pump head;
(2) in the process of going down the well, the sealing sleeve 3 is connected with the upper joint 1, the tooth-shaped retainer ring 7 is connected to the centralizer main body 8, the guide pin 29 is arranged in the longitudinal guide groove 28, the oil drainage hole II 18 of the sealing sleeve 3 is not overlapped with the oil drainage hole I15 of the upper joint, the effect of sealing the oil drainage hole I15 is achieved, and the structure ensures that the oil drainage channel of the oil drainage device cannot be opened in advance by any rotation when the well goes down;
(3) before starting the pump, the central tube 6 is lifted upwards, the central tube 6 is fixedly connected with the lower joint 12, namely the lower joint 12 is lifted upwards, the guide pin 29 is fixed on the lower joint 12, and the guide pin 29 is lifted upwards; the central tube 6 rotates downwards again, when the central tube is rotated downwards, the guide pin 29 rotates to the lower end of the inclined guide groove 27 from the guide sleeve, the friction body 9 extrudes the inner wall of the oil sleeve by the friction force under the action of the compression spring 10, namely, the upper position and the lower position of the tooth-shaped retainer ring 7 are not moved, the central tube 6 is in sliding connection with the tooth-shaped retainer ring 7 and the centralizing body main body 8, the central tube 6 drives the sealing sleeve 3 fixedly connected with the central tube to rotate downwards, and the sealing sleeve 3 is meshed with the tooth-shaped retainer ring 7; the center tube rotates again, and the draining hole II 18 of seal cover 3 aligns with the draining hole I15 of top connection 1 this moment, reaches the purpose of draining.
Claims (1)
1. Oil pipe environmental protection draining instrument, including the center tube, threaded connection connects on the center tube, center tube lower extreme threaded connection lower clutch, characterized by: the upper joint is provided with a circumferential strip-shaped hole groove and an oil drainage hole I, and a sealing ring is arranged in the oil drainage hole I; the upper joint is in threaded connection with a protection ring, a sealing sleeve is sleeved on the upper joint and provided with a toothed rear end, a pin shaft hole and an oil drainage hole II are formed in the sealing sleeve, a positioning pin is arranged in the pin shaft hole, the positioning pin is screwed into the sealing sleeve in a threaded manner, and a cylindrical shaft part at the lower part of the positioning pin enters a strip-shaped hole groove of the upper joint;
the middle part of the central tube is sleeved with a tooth-shaped check ring, a centralizing body main body and a friction block, the tooth-shaped check ring is provided with a tooth-shaped front end, and the tooth-shaped front end of the tooth-shaped check ring can be meshed with the tooth-shaped rear end of the sealing sleeve; the inner side of the tooth-shaped retainer ring is provided with a step I and a step II; the lower adapter is sleeved with a guide sleeve, and the inner side of the front end of the guide sleeve is provided with a step III and a step IV; the two ends of the centralizing body main body are respectively provided with a boss I and a boss II, the boss I is in threaded connection with the step I, and the boss II is in threaded connection with the step III; a plurality of spring mounting holes are formed in the friction block, compression springs are arranged in the spring mounting holes, and two ends of the friction block are respectively arranged below the step II and the step IV;
the rear part of the guide sleeve is provided with a guide groove, the lower joint is provided with a guide pin, the guide groove is provided with a downward oblique guide groove and a longitudinal guide groove, and the guide pin is arranged in the guide groove; and the lower end of the lower connector is in threaded connection with an anti-collision ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058064.6A CN110700791A (en) | 2019-11-01 | 2019-11-01 | Environment-friendly oil drainage tool for oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058064.6A CN110700791A (en) | 2019-11-01 | 2019-11-01 | Environment-friendly oil drainage tool for oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700791A true CN110700791A (en) | 2020-01-17 |
Family
ID=69204078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911058064.6A Withdrawn CN110700791A (en) | 2019-11-01 | 2019-11-01 | Environment-friendly oil drainage tool for oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110700791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796703A (en) * | 2021-03-16 | 2021-05-14 | 大庆市天德忠石油科技有限公司 | Claw spring type sliding sleeve oil drain device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273767Y (en) * | 1996-09-25 | 1998-02-04 | 沈阳市蓝天采油工具研究所 | Sectional type crude lifting tube off-loading apparatus |
| CN110439506A (en) * | 2019-07-30 | 2019-11-12 | 辽宁新华仪器有限公司 | A kind of oil releasing device for oil pipe |
-
2019
- 2019-11-01 CN CN201911058064.6A patent/CN110700791A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273767Y (en) * | 1996-09-25 | 1998-02-04 | 沈阳市蓝天采油工具研究所 | Sectional type crude lifting tube off-loading apparatus |
| CN110439506A (en) * | 2019-07-30 | 2019-11-12 | 辽宁新华仪器有限公司 | A kind of oil releasing device for oil pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796703A (en) * | 2021-03-16 | 2021-05-14 | 大庆市天德忠石油科技有限公司 | Claw spring type sliding sleeve oil drain device |
| CN112796703B (en) * | 2021-03-16 | 2022-03-04 | 大庆市天德忠石油科技有限公司 | Claw spring type sliding sleeve oil drain device |
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200117 |