CN110080720B - Balanced type impact blowout prevention oil drainage device - Google Patents
Balanced type impact blowout prevention oil drainage device Download PDFInfo
- Publication number
- CN110080720B CN110080720B CN201910440901.5A CN201910440901A CN110080720B CN 110080720 B CN110080720 B CN 110080720B CN 201910440901 A CN201910440901 A CN 201910440901A CN 110080720 B CN110080720 B CN 110080720B
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- Prior art keywords
- thread
- oil
- screw thread
- internal
- mounting groove
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- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 59
- 238000000034 method Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- 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
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Sink And Installation For Waste Water (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to a balanced type impact blowout prevention oil drain device, which comprises an oil pipe coupling, a sealing sliding sleeve, a clamp spring, an oil drain main body, an oil drain pin, a combined gasket, a switch sleeve, a blowout prevention overcurrent mandrel and a joint, and is characterized in that: the oil pipe coupling on be equipped with internal thread one and internal thread two, the internal thread incline outward, the internal thread incline inboard, a drain main part end on be equipped with external screw thread one, external screw thread one and internal screw thread two cooperation, external screw thread two and three cooperation of internal screw thread, the drain main part in be equipped with the installation cavity, the switch cover install in the installation cavity, the installation cavity divide into the installation end, macroporous end and aperture end, macroporous end diameter be greater than between the aperture end. The invention avoids the phenomenon that the pump is not in place and is closed in the later period due to the upward acting force of the bottom hole oil gas pressure to the valve plate by arranging the balanced impact blowout prevention oil drain device.
Description
Technical Field
The invention relates to a balanced type impact blowout prevention oil drainage device.
Background
The existing impact blowout-preventing oil drain device is used for bumping pump operation under the condition that the bottom hole oil gas pressure is not large in the oil extraction pump-down process of an oil field, a plunger pushes a sealing sliding sleeve to move downwards, and a clamp spring enters a lower clamp spring groove to ensure that a valve plate is normally open. However, when the oil gas pressure at the bottom of the well and the high-yield well is particularly high, the valve plate is protected by the crude oil with viscosity, and the valve plate at the moment is equivalent to a piston to generate an upward acting force from the valve plate, so that the plunger downwards bumps the pump clamp spring and does not fall into the lower clamp spring groove. Therefore, the pumping capacity of the oil pump is increased in the beginning, but the oil gas pressure at the bottom of the well quickly enables the valve plate to be closed and restored to the initial state, so that the production is delayed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a balanced impact blowout prevention oil drainage device.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a balanced striking blowout prevention bleeder, includes oil pipe coupling, sealing sliding sleeve, jump ring, oil drainage main part, oil drainage pin, combination gasket, switch cover, blowout prevention overflow dabber, joint, its characterized in that: the oil pipe coupling on be equipped with internal thread one and internal thread two, the internal thread incline to the outside, the internal thread incline to the inboard, the one end of oil drainage main part on be equipped with external screw thread one, external screw thread one with the cooperation of internal screw thread two, the oil drainage main part other end be equipped with external screw thread two, the inboard of joint be equipped with internal screw thread three, external screw thread two and the cooperation of internal screw thread three, the oil drainage main part in be equipped with the installation cavity, the switch cover install at the installation cavity, the switch cover divide into the installation end, macroporous end and aperture end, the macroporous end diameter be greater than between the aperture end, the installation cavity in be equipped with the mounting groove one, the installation end in be equipped with the internal screw thread four, the sealing sleeve on be equipped with the external screw thread four, the outer lane on be equipped with the mounting groove two, the jump ring install between mounting groove one and the mounting groove two, the anti-spraying mandrel install the pin five thread pin in the other end in the installation of the inner side of the switch core shaft, the plug pin is equipped with the five thread pin, the plug pin is equipped with the other end in the installation hole, five the inner thread pin is equipped with to the inside the installation pin.
Preferably, the first internal thread has an inclination angle of 1:16, and the second internal thread has an inclination angle of 1:16.
Preferably, the blowout-preventing and overcurrent-preventing mandrel comprises a hollow mandrel and a sealed bottom end, wherein the sealed bottom end is arranged at one end of the hollow mandrel, the hollow mandrel is hollow, and a plurality of notches are arrayed on the hollow mandrel at one side of the sealed bottom end.
Preferably, one side of the external thread II of the oil drainage main body is provided with a mounting groove II, the other side of the external thread II of the oil drainage main body is provided with a mounting groove III, oil-resistant rubber I is mounted in the mounting groove II, and oil-resistant rubber II is mounted in the mounting groove II.
Preferably, one end of the joint is provided with an external thread six.
By adopting the technical scheme, compared with the prior art, the invention avoids the phenomenon that the pump is not in place due to upward acting force of bottom hole oil gas pressure on the valve plate and is closed in the later period due to collision, the acting force for opening the oil inlet channel is very small, and the phenomenon that the oil inlet channel is half-opened and then closed due to the influence of the bottom hole oil gas pressure is avoided, so that the oil inlet channel can be opened under the small acting force, and the invention is very practical under the well condition of large well deviation.
The invention is further described below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a front cross-sectional view of a balanced impact blowout preventer of the present invention.
Fig. 2 is a front cross-sectional view of a tubing collar of a balanced impact blowout preventer of the present invention.
Fig. 3 is a partial view of a balanced impact blowout preventer of the present invention.
Fig. 4 is a front cross-sectional view of a blowout prevention and overflow mandrel of a balanced type impact blowout preventer of the present invention.
Fig. 5 is a front cross-sectional view of a drain body of a balanced impact blowout preventer of the present invention.
In the figure: 1. the oil pipe coupling comprises an oil pipe coupling body, a first internal thread, a first 1b, a second internal thread, a second 2, a sealing sliding sleeve, a fourth external thread, a second 2b, a second mounting groove, a 3, a clamp spring, a 4, an oil drainage main body, a 4a, a first external thread, a 4b, a second external thread, a 4c, a mounting cavity, a 4c1, a first mounting groove, a 4d, a threaded hole, a 4e, a second mounting groove, a 4f, a third mounting groove, a 5, an oil drainage pin, a 6, a combined gasket, a 7, a switch sleeve, a 7a, a mounting end, a 7b, a large hole end, a 7c, a small hole end, a 7d, a fourth internal thread, a 8, an anti-blowout and overcurrent mandrel, a fifth external thread, a hollow mandrel, a 8c, a sealing bottom end, an 8d, a notch, 9, an oil-resistant rubber, a 10, an oil-resistant rubber second, a joint, a 11a, a third internal thread, a 11b, a fifth internal thread, a 11c and a sixth external thread.
Detailed Description
Examples:
as shown in fig. 1-5, a balanced impact blowout prevention oil drain device comprises an oil pipe coupling 1, a sealing sliding sleeve 2, a clamping spring 3, an oil drain main body 4, an oil drain pin 5, a combined gasket 6, a switch sleeve 7, a blowout prevention overcurrent mandrel 8 and a joint 11, and is characterized in that: the oil pipe coupling 1 on be equipped with internal thread 1a and internal thread 1b, internal thread 1a outside slope, internal thread 1b inside slope, the one end of bleeder main part 4 on be equipped with external thread 4a, external thread 4a and the cooperation of internal thread 1b, bleeder main part 4 other end be equipped with external thread 4b, joint 11's inboard be equipped with internal thread three 11a, external thread 4b and three internal thread 11a cooperate, bleeder main part 4 in be equipped with installation cavity 4c, switch 7 install in installation cavity 4c, switch 7 divide into installation end 7a, big hole end 7b and little hole end 7c, big hole end 4c2 diameter be greater than between little hole end 4c3, installation end 4c1 in be equipped with installation groove 4c1, installation end 4c1 in be equipped with internal thread four 7d, the inside of joint 11 be equipped with internal thread three 11a, the sealing sleeve 2a be equipped with the sealing sleeve 2a, the sealing sleeve 2a is equipped with the sealing sleeve 2a, the sealing sleeve 2 is equipped with the three-thread 3 a, the five-way pin joint is equipped with the five-thread 5 b is equipped with the three external thread 5 b, the five-way joint is equipped with the five-thread 5 a, the five-way joint pin is equipped with the five-hole 2a, the five-way joint pin joint is equipped with the five-hole 5, the five-tip is equipped with the five-tip 5, and is equipped with the five-tip 5 a 5, and is equipped with the five-tip 5 on the five-tip 5.
Furthermore, the inclination angle of the first internal thread 1a is 1:16, the inclination angle of the second internal thread 1b is 1:16, and the connection between the tubing coupling 1 and an external tubing is realized through the arrangement of the first internal thread 1 a.
Further, the blowout-preventing overcurrent mandrel 8 comprises a hollow mandrel 8b and a sealed bottom end 8c, the sealed bottom end 8c is arranged at one end of the hollow mandrel 8b, the hollow mandrel 8b is hollow, a plurality of notches 8d are arranged on the hollow mandrel 8b at one side of the sealed bottom end 8c, the blowout-preventing overcurrent mandrel 8 is sealed in a normal state through the sealed bottom end 8c, and the operation of oil drainage is realized by moving the hollow mandrel 8b under the condition of being stressed through the arrangement of the notches 8 d.
Further, a second installation groove 4e is formed in one side of the second external thread 4b of the oil drainage main body 4, a third installation groove 4f is formed in the other side of the second external thread 4b of the oil drainage main body 4, oil-resistant rubber I9 is installed in the second installation groove 4e, oil-resistant rubber II 10 is installed in the second installation groove 4f, and sealing connection between the oil drainage main body 4 and the joint 11 is achieved through arrangement of the oil-resistant rubber I9 and the oil-resistant rubber II 10.
Furthermore, one end of the connector 11 is provided with an external thread six 11c, and external connection of the connector 11 is facilitated through arrangement of the external thread six 11 c.
In the invention, when the oil well works, the blowout prevention overflow mandrel 8 and the switch sleeve 7 seal the inner cavity of the oil pipe, so that the oil gas in the oil pipe can be prevented from overflowing and being ejected in the process of lowering the oil pipe and the sucker rod string. When the sucker rod string is lowered in place, the pump is bumped, the sealing sliding sleeve 2 can be pushed by the plunger to move downwards, so that the blowout-preventing overcurrent mandrel 8 and the switch sleeve 7 move into a displacement, oil is drained through the notch 8d, and the blowout-preventing overcurrent mandrel is opened for unsealing; when the oil pipe is started, the sucker rod is put into, and the impact head connected to the head end of the sucker rod breaks the oil drainage pin 5, so that the oil pipe and the sleeve channel are opened to drain oil.
By adopting the technical scheme, compared with the prior art, the invention avoids the phenomenon that the pump is not in place due to upward acting force of bottom hole oil gas pressure on the valve plate and is closed in the later period due to collision, the acting force for opening the oil inlet channel is very small, and the phenomenon that the oil inlet channel is half-opened and then closed due to the influence of the bottom hole oil gas pressure is avoided, so that the oil inlet channel can be opened under the small acting force, and the invention is very practical under the well condition of large well deviation.
The present invention is not limited to the above-described preferred embodiments, and any person who can learn the structural changes made in the light of the present invention should fall within the scope of the present invention, even if the present invention has the same or similar technical solutions as the present invention.
Claims (5)
1. The utility model provides a balanced striking blowout prevention bleeder, includes oil pipe coupling, sealing sliding sleeve, jump ring, oil drainage main part, oil drainage pin, combination gasket, switch cover, blowout prevention overflow dabber, joint, its characterized in that: the oil pipe coupling on be equipped with internal thread one and internal thread two, the internal thread incline to the outside, the internal thread incline to the inboard, the one end of oil drainage main part on be equipped with external screw thread one, external screw thread one with the cooperation of internal screw thread two, the oil drainage main part other end be equipped with external screw thread two, the inboard of joint be equipped with internal screw thread three, external screw thread two and the cooperation of internal screw thread three, the oil drainage main part in be equipped with the installation cavity, the switch cover install at the installation cavity, the switch cover divide into the installation end, macroporous end and aperture end, the macroporous end diameter be greater than aperture end diameter, the installation cavity in be equipped with the mounting groove one, the installation end in be equipped with the internal screw thread four, the sealing sleeve on be equipped with the external screw thread four, the outer lane on be equipped with the mounting groove two, the jump ring install between mounting groove one and the mounting groove two, the anti-spraying mandrel install the five thread pin in the other end in the installation pin, the switch cover is equipped with the five thread pin in the inside the installation of the inner thread pin, the five-hole pin is equipped with to the installation core shaft.
2. The balanced impact blowout preventer of claim 1, wherein: the inclination angle of the first internal thread is 1:16, and the inclination angle of the second internal thread is 1:16.
3. The balanced impact blowout preventer of claim 1, wherein: the blowout-preventing overcurrent mandrel comprises a hollow mandrel and a sealed bottom end, wherein the sealed bottom end is arranged at one end of the hollow mandrel, the hollow mandrel is hollow, and a plurality of notches are arrayed on the hollow mandrel at one side of the sealed bottom end.
4. The balanced impact blowout preventer of claim 1, wherein: the oil-resistant oil drainage device is characterized in that a mounting groove II is formed in one side of the external thread II of the oil drainage main body, a mounting groove III is formed in the other side of the external thread II of the oil drainage main body, oil-resistant rubber I is mounted in the mounting groove II, and oil-resistant rubber II is mounted in the mounting groove II.
5. The balanced impact blowout preventer of claim 1, wherein: one end of the connector is provided with an external thread six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910440901.5A CN110080720B (en) | 2019-05-24 | 2019-05-24 | Balanced type impact blowout prevention oil drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910440901.5A CN110080720B (en) | 2019-05-24 | 2019-05-24 | Balanced type impact blowout prevention oil drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110080720A CN110080720A (en) | 2019-08-02 |
| CN110080720B true CN110080720B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910440901.5A Active CN110080720B (en) | 2019-05-24 | 2019-05-24 | Balanced type impact blowout prevention oil drainage device |
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| Country | Link |
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| CN (1) | CN110080720B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780226A (en) * | 2021-01-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Composite blowout-preventing oil drain valve, tubular column string with oil drain valve and application method |
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| CN209976519U (en) * | 2019-05-24 | 2020-01-21 | 盐城市弘通石油机械有限公司 | Balanced type impact blowout prevention oil drain device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2623902C (en) * | 2008-03-05 | 2016-02-02 | Stellarton Technologies Inc. | Downhole fluid recirculation valve |
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2019
- 2019-05-24 CN CN201910440901.5A patent/CN110080720B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2517868Y (en) * | 2001-11-27 | 2002-10-23 | 阜新市石油工具厂 | Impacting oil drain appts. |
| CN2616675Y (en) * | 2003-05-16 | 2004-05-19 | 程世英 | Not-well-killing blowout-preventing oil drainage device |
| CA2435268A1 (en) * | 2003-07-31 | 2005-01-31 | Frank Kaszuba | Sliding sleeve valve |
| CN2864087Y (en) * | 2006-02-25 | 2007-01-31 | 长庆石油勘探局 | Underwell anti-injection oil discharger |
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| CN201851082U (en) * | 2010-10-25 | 2011-06-01 | 张川民 | Fully-functional anti-spray oil drain device |
| CN201851083U (en) * | 2010-10-25 | 2011-06-01 | 张川民 | Two-way blowout-preventing oil drain device |
| CN205078234U (en) * | 2015-11-03 | 2016-03-09 | 中国石油天然气股份有限公司 | Pressure release relief valve of equilibrium oil cover pressure |
| CN205297473U (en) * | 2015-12-14 | 2016-06-08 | 中国石油天然气股份有限公司 | Prevent spouting draining switch in pit from formula that comes off |
| CN105971559A (en) * | 2016-06-22 | 2016-09-28 | 中国石油大学(华东) | Horizontal well staged fracturing sliding sleeve opening-closing tool |
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| CN207363643U (en) * | 2017-10-31 | 2018-05-15 | 阜新驰宇石油机械有限公司 | A kind of blowout prevention draining instrument |
| CN108086946A (en) * | 2018-01-18 | 2018-05-29 | 江苏航天鸿鹏数控机械有限公司 | Gas well induced flow switch valve |
| CN208594903U (en) * | 2018-06-29 | 2019-03-12 | 中国石油天然气股份有限公司 | Bleeder |
| CN209976519U (en) * | 2019-05-24 | 2020-01-21 | 盐城市弘通石油机械有限公司 | Balanced type impact blowout prevention oil drain device |
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| Publication number | Publication date |
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| CN110080720A (en) | 2019-08-02 |
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