CN113309484A - Rotary blowout preventer for oil well construction operation - Google Patents
Rotary blowout preventer for oil well construction operation Download PDFInfo
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- CN113309484A CN113309484A CN202110728879.1A CN202110728879A CN113309484A CN 113309484 A CN113309484 A CN 113309484A CN 202110728879 A CN202110728879 A CN 202110728879A CN 113309484 A CN113309484 A CN 113309484A
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- middle ring
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000003129 oil well Substances 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 238000010030 laminating Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 46
- 230000000694 effects Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000009471 action Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/08—Wipers; Oil savers
- E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers
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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)
- Earth Drilling (AREA)
Abstract
The invention relates to the field of well control equipment, and discloses a rotary blowout preventer for oil well construction operation, which comprises a lower shell and a drill rod, wherein the top of the lower shell is provided with an upper shell, the inner side of the lower shell is provided with a rotatable middle ring sleeve, the inner side of the middle ring sleeve is provided with an expansion rubber sleeve filled with gas, the inner side of the expansion rubber sleeve is attached to the inner wall of the drill rod, and the top of the inner cavity of the middle ring sleeve is provided with an upper sliding ring capable of moving longitudinally. Through the structural design of the inboard inflation gum cover of middle ring cover, the slip crown plate and the linkage compensation arrangement of cooperation linkage utilize the sealed drilling rod of laminating of the high pressure state that is full of gas in the inflation gum cover to need to change not unidimensional drilling rod, effectually avoided current rotatory preventer when using, because the size of gluing the core is fixed, only can seal the drilling tool of single size, can not realize the whole well section accuse and press the operation of having a job, and can't satisfy the technical problem of the sealed demand of compound drilling tool.
Description
Technical Field
The invention relates to the field of well control equipment, in particular to a rotary blowout preventer for oil well construction operation.
Background
The rotary blowout preventer is one of key equipment for implementing underbalanced drilling and pressure control drilling, and is mainly used for providing wellhead pressure control to realize rotary sealing, and the rotary blowout preventer is used for sealing an annular space of a wellhead so as to prevent the problem of dead pressing or pollution of an oil-gas reservoir due to overhigh pressure of a drilling fluid column when the oil-gas reservoir is drilled, so that the pressure of the drilling fluid column is slightly lower than the pressure of a bottom layer, the bottom hole is kept to slightly overflow, and the operation of drilling while jetting or tripping under pressure is realized.
When the existing rotary blowout preventer is used, the rubber core is fixed in size and only can seal a drilling tool with a single size, and the technical problem that the sealing requirement of the composite drilling tool cannot be met due to the fact that the composite drilling tool is frequently encountered in an oil drilling field and the whole-well-section pressure-control tripping operation cannot be realized is solved, so that the rotary blowout preventer for oil well construction operation is provided.
Disclosure of Invention
The invention provides a rotary blowout preventer for oil well construction operation, which has the advantages of meeting the sealing requirement of a composite drilling tool and prolonging the service life of a rotary sealing part and solves the technical problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme to realize: the rotary blowout preventer comprises a lower shell and a drill rod, wherein the top of the lower shell is provided with an upper shell, the inner side of the lower shell is provided with a rotatable middle ring sleeve, the inner side of the middle ring sleeve is provided with an expansion rubber sleeve filled with gas, the inner side of the expansion rubber sleeve is attached to the inner wall of the drill rod, the top of the inner cavity of the middle ring sleeve is provided with an upper sliding ring capable of moving longitudinally, a lower sealing rubber ring and an upper sealing rubber ring are respectively arranged between the top of the upper sliding ring and the bottom of the upper shell, a sliding ring plate positioned above the expansion rubber sleeve is movably sleeved in the middle ring sleeve, a linkage compensation device is arranged between the sliding ring plate and the upper sliding ring, a positioning spring positioned above the sliding ring plate is further arranged in the middle ring sleeve, and the sliding ring plate keeps moving downwards under the elastic force action of the positioning spring.
Optionally, the fixed cover in inboard of middle ring cover is equipped with position sleeve, the spout has all been seted up to position sleeve's both sides, slip crown plate activity suit is in position sleeve's inboard, and the equal fixedly connected with stop block in both sides of slip crown plate, stop block cup joints with the spout activity, and the outer side of stop block and the inner wall laminating of spout, position sleeve's top fixedly connected with upper ring plate, positioning spring locates between upper ring plate and the slip crown plate.
Optionally, be equipped with location bearing between the outside of middle ring cover and the inner wall of lower casing, be equipped with footstep bearing between the bottom of lower position ring board and the bottom of lower casing inner chamber, also be equipped with footstep bearing between the top of middle ring cover and the bottom of last casing, and the bottom fixed connection of footstep bearing's top and last casing, the top swing joint of footstep bearing's bottom and middle ring cover.
Optionally, a whole circle of anti-slip rubber sleeve is arranged in the middle of the inner side of the expansion rubber sleeve, and the friction coefficient of the anti-slip rubber sleeve is greater than that of the expansion rubber sleeve.
Optionally, the linkage compensation device includes the standpipe of fixed connection at slip crown plate top, and the top of standpipe cup joints with the activity of last crown plate, the inside movable sleeve of standpipe is equipped with the sliding block, and the outside of sliding block and the inner wall laminating of standpipe, the top fixedly connected with universal driving shaft of sliding block, the top of universal driving shaft and the bottom fixed connection of last sliding ring, the magnetic sheet on the bottom fixedly connected with of sliding block, the bottom of standpipe inner chamber is equipped with down magnetic sheet, and down magnetic sheet is the same with the opposite magnetic pole of last magnetic sheet.
The invention provides a rotary blowout preventer for oil well construction operation, which has the following beneficial effects:
1. this oil well construction operation is with rotatory preventer, structural design through the inboard inflation gum cover of middle ring cover, the slip crown plate and the linkage compensation arrangement of cooperation linkage, the sealed drilling rod of laminating is come to the high pressure state that utilizes to be filled with gas in the inflation gum cover, so that need change not unidimensional drilling rod, the effectual current rotatory preventer of having avoided is when using, because the size of gluey core is fixed, only can seal the drilling tool of single size, because of the on-the-spot complex drilling tool that often meets of oil drilling, can not realize the whole well section accuse and press the operation of putting into the well, and can't satisfy the technical problem of the sealed demand of complex drilling tool.
2. This oil well construction operation is with rotatory preventer, under the effect of lower magnetic sheet to upper magnetic sheet magnetic repulsion through linkage compensation arrangement, make the lower sealed rubber ring at upper sliding ring top tightly laminate with the upper sealed rubber ring of last casing bottom, and along with the friction loss between lower sealed rubber ring and the upper sealed rubber ring, utilize this magnetic force to compensate in real time, ensure that lower sealed rubber ring and upper sealed rubber ring remain the state of sealed laminating all the time, this magnetic repulsion still available spring elasticity replaces, thereby the life of rotatory preventer has been improved, avoid frequently changing trouble and the problem that probably influences the efficiency of construction that sealed rubber ring brought.
3. The rotary blowout preventer for oil well construction operation is characterized in that a sliding ring plate and a linkage compensation device which are linked are matched through the structural design of an expansion rubber sleeve on the inner side of a middle ring sleeve, when the size of a replaced drill rod is reduced, the magnetic repulsion force of a lower magnetic plate in the linkage compensation device on an upper magnetic plate is reduced, the frictional resistance of the lower sealing rubber ring relative to an upper sealing rubber ring is also reduced, the problem that when the frictional loss of the lower sealing rubber ring and the upper sealing rubber ring is compensated by using the magnetic repulsion force or a spring is effectively avoided, the drill rod cannot drive the expansion rubber sleeve to rotate integrally when the pressure value of the expansion rubber sleeve on the drill rod is reduced to be the same as or lower than the magnetic repulsion force or the spring force value, the abrasion of the drill rod relative to the expansion rubber sleeve is caused, the problem of later replacement is solved, and the energy consumption during rotation is also saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top cut away view of the expansion shell of the structure of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the linkage compensating device of FIG. 1 according to the present invention.
In the figure: 1. a lower housing; 2. an upper housing; 3. a middle ring sleeve; 4. positioning the bearing; 5. a thrust bearing; 6. a lower ring plate; 7. positioning the sleeve; 701. a chute; 702. an upper ring plate; 8. expanding the rubber sleeve; 801. an anti-slip rubber sleeve; 9. a slip ring plate; 901. a limiting slide block; 10. a drill stem; 11. a positioning spring; 12. an upper slip ring; 13. a lower sealing rubber ring; 14. an upper sealing rubber ring; 15. a linkage compensation device; 151. a vertical tube; 152. a slider; 153. a linkage shaft; 154. an upper magnetic plate; 155. a lower magnetic plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a rotary blowout preventer for oil well construction operation comprises a lower housing 1 and a drill rod 10, wherein the top of the lower housing 1 is connected with an upper housing 2 through a flange, the drill rod 10 penetrates through the middle parts of the lower housing 1 and the upper housing 2, a rotatable middle ring sleeve 3 is arranged in the lower housing 1, the bottom of the middle ring sleeve 3 is fixedly connected with a lower ring plate 6, a positioning sleeve 7 is fixedly sleeved on the inner side of the middle ring sleeve 3, sliding grooves 701 are respectively formed in both sides of the positioning sleeve 7, a sliding ring plate 9 is movably sleeved in the positioning sleeve 7, limiting sliders 901 are respectively and fixedly connected to both sides of the sliding ring plate 9, the outer sides of the limiting sliders 901 are movably sleeved with the sliding grooves 701, an expansion rubber sleeve 8 is arranged between the sliding ring plate 9 and the lower ring plate 6, the interior of the expansion rubber sleeve 8 is in a pressurized state, an upper ring plate 702 is fixedly connected to the top of the positioning sleeve 7, a positioning spring 11 movably sleeved outside the drill rod 10 is arranged between the bottom of the upper ring plate 702 and the top of the sliding ring plate 9, an upper sliding ring 12 positioned above the upper ring plate 702 is movably sleeved inside the middle ring sleeve 3, a lower sealing rubber ring 13 is fixedly connected to the top of the upper sliding ring 12, an upper sealing rubber ring 14 positioned below the lower sealing rubber ring 13 is fixedly connected to the bottom of the upper shell 2, the upper surface of the upper sealing rubber ring 14 is attached to the lower surface of the lower sealing rubber ring 13 in a sealing manner, linkage compensation devices 15 positioned on two sides of the positioning spring 11 are arranged at the top of the sliding ring plate 9, and the top of the linkage compensation devices 15 is fixedly connected to the bottom of the upper sliding ring 12.
Under normal state, the inner side of the expansion rubber sleeve 8 is tightly attached to the outer side of the drill rod 10 to form sealing by the elastic force of the positioning spring 11 in cooperation with the high-pressure state of the gas filled in the expansion rubber sleeve 8, meanwhile, the lower magnetic plate 155 in the vertical pipe 151 is tightly attached to the upper magnetic plate 154 under the action of the magnetic repulsion force of the upper magnetic plate 154, the lower sealing rubber ring 13 at the top of the upper sliding ring 12 is tightly attached to the upper sealing rubber ring 14 at the bottom of the upper shell 2, and the magnetic repulsion force is used for real-time compensation along with the friction loss between the lower sealing rubber ring 13 and the upper sealing rubber ring 14, so that the lower sealing rubber ring 13 and the upper sealing rubber ring 14 are always kept in a sealing and attaching state, the magnetic repulsion force can be replaced by the spring elastic force, the service life of the rotary blowout preventer is prolonged, the trouble caused by frequent replacement of the sealing rubber rings and the problem that the construction efficiency is possibly influenced are avoided, and the pressure value of the inner side of the expansion rubber sleeve 8 to the outer side of the drill rod 10 is always greater than the magnetic repulsion value of the lower magnetic plate 155 to the upper magnetic plate 154, when the drill rod 10 rotates, the expansion rubber sleeve 8, the lower ring plate 6, the middle ring sleeve 3, the sliding ring plate 9 and the lower sealing rubber ring 13 can be driven to integrally rotate, so that the lower sealing rubber ring 13 rotates relative to the upper sealing rubber ring 14, thereby facilitating the later replacement of the lower sealing rubber ring 13 and the upper sealing rubber ring 14, avoiding the problems of friction loss and difficult replacement of the sealing structure when the rotary blowout preventer is used, when the drill rods 10 with different sizes need to be replaced, the drill rods 10 are directly pulled out and then the drill rods 10 which need to be replaced are inserted, so that the problems that when the existing rotary blowout preventer is used, because the size of the rubber core is fixed, only a drilling tool with a single size can be sealed, and the technical problem that the sealing requirement of the composite drilling tool cannot be met because the composite drilling tool is frequently encountered in an oil drilling field and the pressure-controlled tripping operation of the whole well section cannot be realized.
When the size of the replaced drill rod 10 is reduced, the extrusion degree of the drill rod 10 on the expansion rubber sleeve 8 is reduced, when the pressure value in the expansion rubber sleeve 8 is unchanged, the sliding ring plate 9 moves downwards to compress the expansion rubber sleeve 8 under the action of the elastic force of the positioning spring 11, so that the inner side of the expansion rubber sleeve 8 is still in a joint sealing state with the drill rod 10, the sliding ring plate 9 drives the vertical pipe 151 to move downwards relative to the linkage shaft 153, the magnetic repulsion force of the lower magnetic plate 155 on the upper magnetic plate 154 is reduced, the pressure value of the lower sealing rubber ring 13 on the upper sealing rubber ring 14 is reduced, so that after the drill rod 10 with the smaller size is replaced, the friction resistance between the drill rod 10 and the expansion rubber sleeve 8 is reduced, the friction resistance of the lower sealing rubber ring 13 relative to the upper sealing rubber ring 14 is reduced, and the friction loss of the lower sealing rubber ring 13 and the upper sealing rubber ring 14 compensated by the magnetic repulsion force or the spring is effectively avoided, because of initial compensation effort is great, when changing the drilling rod 10 of less chi footpath, the pressure value of inflation gum cover 8 to drilling rod 10 reduces with magnetic repulsion or spring force value when the value is the same or lower, and drilling rod 10 can not drive 8 integral rotations of inflation gum covers, leads to the rotatory and wearing and tearing consumption of drilling rod 10 relative inflation gum cover 8, does not change the problem of later stage change, has still saved the energy consumption when rotatory.
The inboard middle part of inflation gum cover 8 is equipped with a whole circle of anti-skidding gum cover 801, and the coefficient of friction of anti-skidding gum cover 801 is greater than the coefficient of friction of inflation gum cover 8, so that when drilling rod 10 was rotatory, can drive inflation gum cover 8, lower ring plate 6, position sleeve 7, slip ring plate 9, upper sliding ring 12, lower sealed gum ring 13 bodily rotation, and then make the lower sealed gum ring 13 of sealed department rotatory relative upper sealed gum ring 14, so that later stage is to lower sealed gum ring 13 and upper sealed gum ring 14 change, the inflation gum cover 8 of having avoided changing, need dismantle the trouble of rotatory preventer completely, work efficiency is improved.
Be equipped with location bearing 4 between the outside of middle ring cover 3 and the inner wall of casing 1 down, be equipped with footstep bearing 5 between the bottom of lower position ring plate 6 and the bottom of casing 1 inner chamber down, also be equipped with footstep bearing 5 between the top of middle ring cover 3 and the bottom of last casing 2, and footstep bearing 5's top and the bottom fixed connection of last casing 2, footstep bearing 5's bottom and middle ring cover 3's top swing joint, through footstep bearing 5 and lower ring plate 6 thrust effect, when avoiding interior under-pressure or high pressure, lead to the effort increase between lower sealed rubber ring 13 and the upper sealed rubber ring 14, lead to frictional force to increase, the problem that the energy consumption machine degree of wear improves.
When the drill rod is used, under the action of the pressure in the expansion rubber sleeve 8 and the elastic force of the sliding ring plate 9, the inner wall of the expansion rubber sleeve 8 is tightly attached to the outer surface of the drill rod 10, and under the action of the repulsive force of the lower magnetic plate 155 to the upper magnetic plate 154, the lower sealing rubber ring 13 and the upper sealing rubber ring 14 are kept in a state of being attached to each other.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an oil well construction operation is with rotatory preventer, includes casing (1), drilling rod (10) down, and the top of casing (1) is equipped with casing (2) down, its characterized in that: the inner side of the lower shell (1) is provided with a rotatable middle ring sleeve (3), the inner side of the middle ring sleeve (3) is provided with an expansion rubber sleeve (8) filled with gas, the inner side of the expansion rubber sleeve (8) is attached to the inner wall of the drill rod (10), the top of the inner cavity of the middle ring sleeve (3) is provided with an upper sliding ring (12) which can move longitudinally, a lower sealing rubber ring (13) and an upper sealing rubber ring (14) are respectively arranged between the top of the upper sliding ring (12) and the bottom of the upper shell (2), a sliding ring plate (9) positioned above the expansion rubber sleeve (8) is movably sleeved in the middle ring sleeve (3), a linkage compensation device (15) is arranged between the sliding ring plate (9) and the upper sliding ring (12), and a positioning spring (11) positioned above the sliding ring plate (9) is also arranged in the middle ring sleeve (3), the sliding ring plate (9) keeps the downward moving trend under the elastic force of the positioning spring (11).
2. The rotary blowout preventer according to claim 1, wherein: the inner side of the middle ring sleeve (3) is fixedly sleeved with a positioning sleeve (7), sliding grooves (701) are formed in two sides of the positioning sleeve (7), a sliding ring plate (9) is movably sleeved on the inner side of the positioning sleeve (7), limiting sliding blocks (901) are fixedly connected to two sides of the sliding ring plate (9), the limiting sliding blocks (901) are movably sleeved with the sliding grooves (701), the outer sides of the limiting sliding blocks (901) are attached to the inner wall of the sliding grooves (701), an upper ring plate (702) is fixedly connected to the top of the positioning sleeve (7), and positioning springs (11) are arranged between the upper ring plate (702) and the sliding ring plate (9).
3. The rotary blowout preventer according to claim 1, wherein: be equipped with location bearing (4) between the outside of middle ring cover (3) and the inner wall of casing (1) down, be equipped with footstep bearing (5) between the bottom of lower ring board (6) and the bottom of casing (1) inner chamber down, also be equipped with footstep bearing (5) between the top of middle ring cover (3) and the bottom of last casing (2), and the bottom fixed connection of the top of footstep bearing (5) and last casing (2), the top swing joint of the bottom of footstep bearing (5) and middle ring cover (3).
4. The rotary blowout preventer according to claim 1, wherein: the middle part of the inner side of the expansion rubber sleeve (8) is provided with a whole circle of anti-skid rubber sleeve (801), and the friction coefficient of the anti-skid rubber sleeve (801) is greater than that of the expansion rubber sleeve (8).
5. The rotary blowout preventer according to claim 1, wherein: linkage compensation arrangement (15) include standpipe (151) of fixed connection at slip crown plate (9) top, and the top and the activity of last crown plate (702) of standpipe (151) cup joint, the inside movable sleeve of standpipe (151) is equipped with sliding block (152), and the outside of sliding block (152) and the inner wall laminating of standpipe (151), the top fixedly connected with universal driving shaft (153) of sliding block (152), the top of universal driving shaft (153) and the bottom fixed connection of last sliding ring (12), magnetic sheet (154) on the bottom fixedly connected with of sliding block (152), the bottom of standpipe (151) inner chamber is equipped with lower magnetic sheet (155), and lower magnetic sheet (155) are the same with the opposite magnetic pole of last magnetic sheet (154).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728879.1A CN113309484B (en) | 2021-06-29 | 2021-06-29 | Rotary blowout preventer for oil well construction operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728879.1A CN113309484B (en) | 2021-06-29 | 2021-06-29 | Rotary blowout preventer for oil well construction operation |
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| CN113309484A true CN113309484A (en) | 2021-08-27 |
| CN113309484B CN113309484B (en) | 2022-08-02 |
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| CN202110728879.1A Active CN113309484B (en) | 2021-06-29 | 2021-06-29 | Rotary blowout preventer for oil well construction operation |
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|---|---|---|---|---|
| GB849057A (en) * | 1958-03-10 | 1960-09-21 | Hydril Co | Rotatable well pressure seal |
| CA2040013A1 (en) * | 1990-07-27 | 1992-01-28 | Robert L. Heinonen | Blowout preventer |
| US5961094A (en) * | 1998-06-24 | 1999-10-05 | Tuboscope I/P Inc. | Method and apparatus for replacing a packer element |
| CN201443592U (en) * | 2009-05-30 | 2010-04-28 | 潍坊世华化工有限公司 | Combined device for sealing rotary shaft |
| CN101718181A (en) * | 2009-12-29 | 2010-06-02 | 西南石油大学 | Lifting valve type underground inside-outside integrated blowout preventer |
| CN101761320A (en) * | 2009-12-26 | 2010-06-30 | 杨颖辉 | Rotary ring-shaped blowout preventer |
| CN107355194A (en) * | 2017-08-30 | 2017-11-17 | 中联煤层气有限责任公司 | A kind of annular preventer |
| CN207485399U (en) * | 2017-08-30 | 2018-06-12 | 中联煤层气有限责任公司 | A kind of annular preventer |
| CN208122809U (en) * | 2018-05-03 | 2018-11-20 | 宋卫兵 | A kind of rotating blowout preventer |
| CN109162663A (en) * | 2018-10-18 | 2019-01-08 | 西南石油大学 | A kind of automatic downhole blow-out preventer device of circular cone valve type and application method |
| CN109237029A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts |
| CN110318704A (en) * | 2019-06-20 | 2019-10-11 | 中国石油大学(北京) | Pneumatic packer |
| CN111456669A (en) * | 2020-04-15 | 2020-07-28 | 青岛理工大学 | Follow-up centering self-compensating particle sealing and shaft-pushing clamping column blowout prevention integrated device |
| CN112112598A (en) * | 2020-11-03 | 2020-12-22 | 西安宇星石油机械新技术开发有限公司 | Compensation type multipurpose annular blowout preventer |
| CN212837671U (en) * | 2020-05-12 | 2021-03-30 | 中国石油天然气集团有限公司 | Rotary blowout preventer |
| CN213016269U (en) * | 2020-08-13 | 2021-04-20 | 北京方圆天地油气技术有限责任公司 | Wellhead fluid director |
-
2021
- 2021-06-29 CN CN202110728879.1A patent/CN113309484B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB849057A (en) * | 1958-03-10 | 1960-09-21 | Hydril Co | Rotatable well pressure seal |
| CA2040013A1 (en) * | 1990-07-27 | 1992-01-28 | Robert L. Heinonen | Blowout preventer |
| US5961094A (en) * | 1998-06-24 | 1999-10-05 | Tuboscope I/P Inc. | Method and apparatus for replacing a packer element |
| CN201443592U (en) * | 2009-05-30 | 2010-04-28 | 潍坊世华化工有限公司 | Combined device for sealing rotary shaft |
| CN101761320A (en) * | 2009-12-26 | 2010-06-30 | 杨颖辉 | Rotary ring-shaped blowout preventer |
| CN101718181A (en) * | 2009-12-29 | 2010-06-02 | 西南石油大学 | Lifting valve type underground inside-outside integrated blowout preventer |
| CN107355194A (en) * | 2017-08-30 | 2017-11-17 | 中联煤层气有限责任公司 | A kind of annular preventer |
| CN207485399U (en) * | 2017-08-30 | 2018-06-12 | 中联煤层气有限责任公司 | A kind of annular preventer |
| CN208122809U (en) * | 2018-05-03 | 2018-11-20 | 宋卫兵 | A kind of rotating blowout preventer |
| CN109162663A (en) * | 2018-10-18 | 2019-01-08 | 西南石油大学 | A kind of automatic downhole blow-out preventer device of circular cone valve type and application method |
| CN109237029A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts |
| CN110318704A (en) * | 2019-06-20 | 2019-10-11 | 中国石油大学(北京) | Pneumatic packer |
| CN111456669A (en) * | 2020-04-15 | 2020-07-28 | 青岛理工大学 | Follow-up centering self-compensating particle sealing and shaft-pushing clamping column blowout prevention integrated device |
| CN212837671U (en) * | 2020-05-12 | 2021-03-30 | 中国石油天然气集团有限公司 | Rotary blowout preventer |
| CN213016269U (en) * | 2020-08-13 | 2021-04-20 | 北京方圆天地油气技术有限责任公司 | Wellhead fluid director |
| CN112112598A (en) * | 2020-11-03 | 2020-12-22 | 西安宇星石油机械新技术开发有限公司 | Compensation type multipurpose annular blowout preventer |
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| Publication number | Publication date |
|---|---|
| CN113309484B (en) | 2022-08-02 |
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