CN111322030A - High temperature high pressure is with recovery type packing element prevents abrupt mechanism - Google Patents
High temperature high pressure is with recovery type packing element prevents abrupt mechanism Download PDFInfo
- Publication number
- CN111322030A CN111322030A CN202010225829.7A CN202010225829A CN111322030A CN 111322030 A CN111322030 A CN 111322030A CN 202010225829 A CN202010225829 A CN 202010225829A CN 111322030 A CN111322030 A CN 111322030A
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- Prior art keywords
- supporting block
- torsion spring
- limiting
- high temperature
- high pressure
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Links
- 238000012856 packing Methods 0.000 title claims description 4
- 238000011084 recovery Methods 0.000 title description 3
- 230000002265 prevention Effects 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000008602 contraction Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Images
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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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)
- Springs (AREA)
Abstract
The invention discloses a recyclable rubber cylinder outburst prevention mechanism for high temperature and high pressure, which comprises supporting blocks and limiting supporting blocks which are sequentially hinged at intervals and form a circular ring, wherein the supporting blocks and the limiting supporting blocks on two sides of the supporting blocks are hinged through commonly penetrating guide rods, the guide rods on two sides of the supporting blocks are respectively sleeved with a left-handed cylindrical spiral torsion spring and a right-handed cylindrical spiral torsion spring, one end torsion arms of the left-handed cylindrical spiral torsion spring and one end torsion arm of the right-handed cylindrical spiral torsion spring are positioned in the supporting blocks, the other end torsion arms of the left-handed cylindrical spiral torsion spring and the right-handed cylindrical spiral torsion springs are positioned in the limiting supporting blocks on two sides. The recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure can realize the contraction and expansion of the outer diameter, solves the problems of protrusion and puncture leakage of the recoverable rubber sleeve during high temperature and high pressure sealing in the prior art, and improves the working pressure of the recoverable packer.
Description
Technical Field
The invention belongs to the technical field of petroleum and natural gas downhole testing tools, and relates to a recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure.
Background
The protruding prevention mechanism of the rubber cylinder is the key for improving the sealing performance of the rubber cylinder, and the sealing protruding prevention mechanism of the prior high-temperature and high-pressure rubber cylinder mainly has three forms: a bowl-shaped metal ring combination, an end face rubber cylinder shoulder part spring adding structure and a metal wire mesh structure;
the bowl-shaped metal ring combined mechanism has reliable performance on the outburst prevention effect of the rubber cylinder, but the metal ring can not be recovered after the expanded outer diameter is enlarged, so the metal ring combined mechanism can only be used in a non-recoverable rubber cylinder and is mostly used on a permanent packer;
the end face rubber cylinder shoulder is provided with a spring structure, is used for a recyclable rubber cylinder, is generally applied in 70MPa, is limited by the strength of a spring, improves the pressure grade and has unstable performance;
the wire mesh structure is limited by the strength of the wire mesh, in practical application, the performance is unstable when high-pressure sealing is carried out, the compressed and expanded outer diameter of the wire mesh structure cannot be recovered, and the wire mesh structure has the hidden trouble of difficult deblocking when used in a recoverable packer;
the current recyclable packer is limited by the sealing pressure of a rubber sleeve, so that the requirement of high-temperature and high-pressure well testing fracturing operation is difficult to meet, and a recyclable rubber sleeve outburst prevention mechanism is urgently needed to improve the sealing performance of the rubber sleeve in the recyclable packer.
Disclosure of Invention
The invention aims to provide a recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure, which can realize the contraction and expansion of the outer diameter, solve the problems of protrusion and puncture of a recoverable rubber sleeve during high temperature and high pressure sealing in the prior art and improve the working pressure of a recoverable packer.
The invention adopts the technical scheme that the recyclable rubber cylinder outburst prevention mechanism for high temperature and high pressure comprises supporting blocks and limiting supporting blocks which are sequentially hinged at intervals and form a circular ring, the supporting blocks and the limiting supporting blocks on two sides of the supporting blocks are hinged through commonly penetrating guide rods, a left-handed cylindrical spiral torsion spring and a right-handed cylindrical spiral torsion spring are respectively sleeved on the guide rods on two sides of the supporting blocks, one ends of the left-handed cylindrical spiral torsion spring and one ends of the right-handed cylindrical spiral torsion spring are located in the supporting blocks, the other ends of the left-handed cylindrical spiral torsion spring and the right-handed cylindrical spiral torsion spring are located in the limiting supporting blocks on two sides of the supporting blocks, and.
The present invention is also characterized in that,
the two sides of the supporting block and the two sides of the limiting supporting block are both arranged in a step shape, the steps on the two sides of the supporting block and the two sides of the limiting supporting block are matched, hinge holes are formed in the steps on the two sides of the supporting block and the two sides of the limiting supporting block, the hinge holes on the two sides of the supporting block and the hinge holes of the two sides of the limiting supporting block which are hinged with the hinge holes are arranged correspondingly, and the guide rod is used for hinging the supporting block and the limiting supporting.
A spring mounting groove has all been seted up on supporting shoe and the spacing supporting shoe, and the spring mounting groove on supporting shoe and the spacing supporting shoe lies in same one side at the circumferencial direction, and levogyration cylinder spiral torsion spring installs in the spring mounting groove of supporting shoe, and dextrorotation cylinder spiral torsion spring installs in the spring mounting groove of spacing supporting shoe.
The spring mounting grooves are respectively arranged on the end faces of the supporting blocks and the limiting supporting blocks, which are positioned on the same clockwise side in the circumferential direction.
And a screw is further fixed at one end of the guide rod, which is positioned outside the circular ring formed by the supporting block and the limiting supporting block.
The positions of the supporting block and the limiting supporting block, which correspond to the torsion arms at the two ends of the left-handed cylindrical spiral torsion spring or the right-handed cylindrical spiral torsion spring, are provided with elongated holes, and the torsion arms at the two ends of the left-handed cylindrical spiral torsion spring or the right-handed cylindrical spiral torsion spring respectively extend into the corresponding elongated holes.
The invention has the beneficial effects that:
according to the recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure, when initial assembly of the outburst prevention mechanism is completed, the outburst prevention mechanism is kept in a contraction state with a smaller outer diameter under the matching use of the left-handed torsion spring and the right-handed torsion spring, and the requirement of the outer diameter of a packer during downhole is met; when setting, axial compression force is applied, the anti-protruding mechanism is expanded into a plane shape along with the increase of the axial compression force, the outer diameter is increased to form a full-circle structure, the anti-protruding mechanism is in contact with the inner wall of the sleeve, the radial gap between the drift diameter gauge and the sleeve is completely filled, the anti-protruding effect is achieved on the sealing of the rubber cylinder, the rubber cylinder is prevented from protruding and leaking from the annular gap between the drift diameter gauge and the sleeve under high temperature and high pressure, and the sealing performance of the rubber cylinder is improved; after the axial compression force is removed during deblocking, the outburst prevention mechanism is restored to a contraction state with a smaller outer diameter under the action of the torsional spring force, the requirement of the recoverable packer for deblocking is met, the problems in the prior art are solved, and the device can bear high strength.
Drawings
FIG. 1 is a front view of a recyclable rubber sleeve outburst prevention mechanism for high temperature and high pressure in accordance with the present invention;
FIG. 2 is a schematic structural diagram of a left-handed helical torsion spring and a right-handed helical torsion spring mounted on the recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure according to the invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a perspective view of FIG. 3;
FIG. 6 is a schematic view of the mechanism for preventing the recyclable rubber cylinder from protruding out of the plane for high temperature and high pressure;
FIG. 7 is an expanded view of the recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure in accordance with the present invention;
FIG. 8 is a cross-sectional view of FIG. 7;
FIG. 9 is a schematic view of the FIG. 8 expanded flat;
FIG. 10 is a schematic structural view of a right-handed helical torsion spring in a recoverable rubber sleeve anti-protrusion mechanism for high temperature and high pressure according to the present invention;
fig. 11 is a schematic structural view of a left-handed helical torsion spring in the recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure according to the invention.
In the figure, the support block 1, the limit support block 2, the left-handed cylindrical spiral torsion spring 3, the right-handed cylindrical spiral torsion spring 4, the screw 5, the guide rod 6, the hinge hole 7, the spring mounting groove 8 and the elongated hole 9 are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a recoverable rubber cylinder outburst prevention mechanism for high temperature and high pressure, which is structurally shown in figures 1-5 and comprises supporting blocks 1 and limiting supporting blocks 2 which are sequentially hinged at intervals and form a circular ring, wherein the supporting blocks 1 and the limiting supporting blocks 2 on two sides of the supporting blocks are hinged through commonly penetrating guide rods 6, as shown in figures 10-11, the guide rods 6 on two sides of the supporting blocks 1 are respectively sleeved with a left-handed cylindrical spiral torsion spring 3 and a right-handed cylindrical spiral torsion spring 4, one end of the left-handed cylindrical spiral torsion spring 3 and one end of the right-handed cylindrical spiral torsion spring 4 are positioned in the supporting blocks 1, the other end of the left-handed cylindrical spiral torsion spring 3 and the other end of the right-handed cylindrical spiral torsion spring 4 are positioned in the limiting supporting blocks 2.
Supporting shoe 1 and limit support 2's both sides all set up to the step form, the step of supporting shoe 1 and limit support 2 both sides cooperatees, hinge hole 7 has all been seted up on the step of supporting shoe 1 and limit support 2 both sides, hinge hole 7 of supporting shoe 1 both sides and the corresponding setting of hinge hole 7 of the articulated both sides limit support 2 with it, guide arm 6 is articulated supporting shoe 1 and limit support 2 through wearing to establish in hinge hole 7 that supporting shoe 1 and limit support 2 correspond, hinge hole 7 is radial hole.
A spring mounting groove 8 has all been seted up on supporting shoe 1 and the spacing supporting shoe 2, spring mounting groove 8 on supporting shoe 1 and the spacing supporting shoe 2 is located same one side at the circumferencial direction, and levogyration cylindrical helical torsion spring 3 is installed in spring mounting groove 8 of supporting shoe 1, and dextrorotation cylindrical helical torsion spring 4 is installed in spring mounting groove 8 of spacing supporting shoe 2.
The spring mounting grooves 8 are respectively arranged on the end faces of the supporting block 1 and the limiting supporting block 2 on one side clockwise in the circumferential direction.
And a screw 5 is further fixed at one end of the guide rod 6, which is positioned at the outer side of the circular ring formed by the supporting block 1 and the limiting supporting block 2.
The positions of the supporting block 1 and the limiting supporting block 2 corresponding to the torsion arms at the two ends of the left-handed cylindrical helical torsion spring 3 or the right-handed cylindrical helical torsion spring 4 are provided with elongated holes 9, and the torsion arms at the two ends of the left-handed cylindrical helical torsion spring 3 or the right-handed cylindrical helical torsion spring 4 respectively extend into the corresponding elongated holes 9.
The assembly process of the recyclable rubber cylinder outburst prevention mechanism for high temperature and high pressure comprises the following steps:
the spring mounting groove 8 with supporting shoe 1 packs into levogyration cylindrical helical torsion spring 3, and dextrorotation cylindrical helical torsion spring 4 is packed into to the spring mounting groove 8 of spacing supporting shoe 2 for the example:
as shown in fig. 3, a torsion arm of the left-handed cylindrical helical torsion spring 3 is arranged in a slender hole 9 of the supporting block 1, another torsion arm of the left-handed cylindrical helical torsion spring 3 is arranged in the slender hole 9 of the limiting supporting block 2, a guide rod 6 penetrates through the left-handed cylindrical helical torsion spring 3 and penetrates through the hinge hole 7 of the limiting supporting block 2, then a screw 5 is screwed in the upper end of the guide rod 6, a torsion arm of the right-handed cylindrical helical torsion spring 4 is arranged in the slender hole 9 of the limiting supporting block 2, another torsion arm of the right-handed cylindrical helical torsion spring 4 is arranged in the slender hole 9 of the next supporting block 1, the guide rod 6 penetrates through the hinge hole 7 at the lower end of the limiting supporting block 2, the guide rod 6 penetrates through the right-handed cylindrical helical torsion spring 4 and penetrates through the limiting block 1 and the screw 5 is screwed in the upper end of the guide rod 6, and the whole circle of the recoverable rubber, as shown in fig. 1-6.
The design size of the outer diameter of a ring formed by the support blocks 1 and the limiting support blocks 2 after being unfolded is selected to be close to the inner diameter of the sleeve;
as shown in fig. 5 and 7-8, when the assembly is completed, the support block 1 and the limit support block 2 are maintained in the ' ﹀ ' shape by the left-hand cylindrical torsion spring 3, and the support block 1 and the limit support block 2 are maintained in the ' type and sequentially arranged in a whole circle by the right-hand cylindrical torsion spring 4, and at this time, the retractable rubber cylinder protrusion preventing mechanism is maintained in the ' type ' with a smaller outer diameter
The type shrinkage state meets the requirement of the outer diameter of the packer during the well descending.
When the packer is set, axial compression force is applied to act on the end face of the recoverable rubber sleeve outburst prevention mechanism, so that the outburst prevention mechanism
The mold is expanded into a plane, as shown in fig. 6 and 9, the outer diameter is increased to be a full circle structure, the full circle structure is contacted with the inner wall of the sleeve, the annular radial gap between the drift diameter gauge and the sleeve is completely filled, the rubber cylinder is prevented from protruding and leaking from the annular gap between the drift diameter gauge and the sleeve under high temperature and high pressure, the sealing performance of the rubber cylinder is improved, wherein the left-handed cylindrical helical torsion spring 3 and the right-handed cylindrical helical torsion spring 4 are twisted along with the process that the anti-protruding mechanism is pressed into the plane; as shown in fig. 1, the complete side of the protrusion prevention mechanism without the spring mounting groove 8 faces the glueA cartridge;
when deblocking, the packer lifts, removes the axial compressive force, but recovery type packing element prevents protruding mechanism and under the effect of the power of levogyration cylindrical helical torsion spring 3 and dextrorotation cylindrical helical torsion spring 4, resumes to the less effect of external diameter
The type shrinkage state meets the deblocking requirement of the recoverable packer.
Claims (6)
1. The utility model provides a mechanism is prevented suddenly with recoverable packing element for high temperature high pressure, its characterized in that, including supporting shoe (1) and the limit support piece (2) of interval articulated and formation ring in proper order, supporting shoe (1) and limit support piece (2) of its both sides are articulated through wearing to be equipped with guide arm (6) jointly, it is equipped with levogyration cylinder spiral torsion spring (3) and dextrorotation cylinder spiral torsion spring (4) to overlap respectively on guide arm (6) of supporting shoe (1) both sides, the one end of levogyration cylinder spiral torsion spring (3) and dextrorotation cylinder spiral torsion spring (4) is located in supporting shoe (1), the other end is located limiting support piece (2) of supporting shoe (1) both sides, levogyration cylinder spiral torsion spring (3) and dextrorotation cylinder spiral torsion spring (4) interval distribution in proper order on the ring.
2. The recoverable rubber sleeve outburst prevention mechanism for the high temperature and the high pressure according to claim 1, wherein the two sides of the supporting block (1) and the limiting supporting block (2) are both arranged in a step shape, the steps on the two sides of the supporting block (1) and the limiting supporting block (2) are matched, the steps on the two sides of the supporting block (1) and the limiting supporting block (2) are both provided with hinge holes (7), the hinge holes (7) on the two sides of the supporting block (1) are correspondingly arranged with the hinge holes (7) of the limiting supporting block (2) hinged to the hinge holes, and the guide rod (6) is arranged in the hinge holes (7) corresponding to the supporting block (1) and the limiting supporting block (2) in a penetrating mode to hinge the supporting block (1) and the limiting supporting block (2).
3. The recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure according to claim 2, wherein the supporting block (1) and the limiting supporting block (2) are respectively provided with a spring installation groove (8), the spring installation grooves (8) on the supporting block (1) and the limiting supporting block (2) are located on the same side in the circumferential direction, the left-handed cylindrical helical torsion spring (3) is installed in the spring installation groove (8) of the supporting block (1), and the right-handed cylindrical helical torsion spring (4) is installed in the spring installation groove (8) of the limiting supporting block (2).
4. The recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure according to claim 3, wherein the spring installation grooves (8) are respectively arranged on the end surfaces of the supporting block (1) and the limiting supporting block (2) on one side clockwise in the circumferential direction.
5. The recyclable rubber barrel protrusion preventing mechanism for high temperature and high pressure as claimed in claim 2, wherein a screw (5) is further fixed to one end of the guide rod (6) located outside the circular ring formed by the supporting block (1) and the limiting supporting block (2).
6. The recoverable rubber sleeve outburst prevention mechanism for high temperature and high pressure according to claim 1, wherein the support block (1) and the limit support block (2) are provided with elongated holes (9) at positions corresponding to the torsion arms at the two ends of the left-handed cylindrical helical torsion spring (3) and the right-handed cylindrical helical torsion spring (4), and the torsion arms at the two ends of the left-handed cylindrical helical torsion spring (3) or the right-handed cylindrical helical torsion spring (4) respectively extend into the corresponding elongated holes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225829.7A CN111322030B (en) | 2020-03-26 | 2020-03-26 | High temperature high pressure is with recoverable packing element anti-protruding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225829.7A CN111322030B (en) | 2020-03-26 | 2020-03-26 | High temperature high pressure is with recoverable packing element anti-protruding mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN111322030A true CN111322030A (en) | 2020-06-23 |
| CN111322030B CN111322030B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010225829.7A Active CN111322030B (en) | 2020-03-26 | 2020-03-26 | High temperature high pressure is with recoverable packing element anti-protruding mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
| CN117345173A (en) * | 2023-11-22 | 2024-01-05 | 中国矿业大学(北京) | High drainage roadway gas sectional drainage method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2185169A1 (en) * | 1992-05-15 | 1993-11-16 | James D. Hendrickson | Retrievable well packer |
| CN201843570U (en) * | 2010-11-04 | 2011-05-25 | 中国石油天然气股份有限公司 | Bidirectional pressure-bearing packer |
| CN202483504U (en) * | 2012-03-20 | 2012-10-10 | 天津汇铸石油设备科技有限公司 | Packer capable of preventing packer rubber barrel from being damaged |
| CN204877370U (en) * | 2014-04-08 | 2015-12-16 | 兰州海默科技股份有限公司 | Abrupt protection device is prevented to compression packer |
| US20190010779A1 (en) * | 2017-07-10 | 2019-01-10 | Baker Hughes, A Ge Company, Llc | High Temperature and Pressure Packer |
| CN212003111U (en) * | 2020-03-26 | 2020-11-24 | 宝鸡市元亨石油设备有限责任公司 | Recoverable rubber sleeve outburst prevention mechanism |
-
2020
- 2020-03-26 CN CN202010225829.7A patent/CN111322030B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2185169A1 (en) * | 1992-05-15 | 1993-11-16 | James D. Hendrickson | Retrievable well packer |
| CN201843570U (en) * | 2010-11-04 | 2011-05-25 | 中国石油天然气股份有限公司 | Bidirectional pressure-bearing packer |
| CN202483504U (en) * | 2012-03-20 | 2012-10-10 | 天津汇铸石油设备科技有限公司 | Packer capable of preventing packer rubber barrel from being damaged |
| CN204877370U (en) * | 2014-04-08 | 2015-12-16 | 兰州海默科技股份有限公司 | Abrupt protection device is prevented to compression packer |
| US20190010779A1 (en) * | 2017-07-10 | 2019-01-10 | Baker Hughes, A Ge Company, Llc | High Temperature and Pressure Packer |
| CN212003111U (en) * | 2020-03-26 | 2020-11-24 | 宝鸡市元亨石油设备有限责任公司 | Recoverable rubber sleeve outburst prevention mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 黎伟;宋伟;雷鸿翔;黎宗琪;李斌;: "新型封隔器胶筒防突装置的设计及分析", 工程设计学报, no. 03, 28 June 2017 (2017-06-28), pages 359 - 364 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
| CN116446820B (en) * | 2023-04-27 | 2023-10-31 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
| CN117345173A (en) * | 2023-11-22 | 2024-01-05 | 中国矿业大学(北京) | High drainage roadway gas sectional drainage method |
| CN117345173B (en) * | 2023-11-22 | 2024-05-10 | 中国矿业大学(北京) | High drainage roadway gas sectional drainage method |
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| CN111322030B (en) | 2024-07-12 |
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