CN112196476A - Horizontal well cable clustering perforating gun string safety release device - Google Patents
Horizontal well cable clustering perforating gun string safety release device Download PDFInfo
- Publication number
- CN112196476A CN112196476A CN202010937980.3A CN202010937980A CN112196476A CN 112196476 A CN112196476 A CN 112196476A CN 202010937980 A CN202010937980 A CN 202010937980A CN 112196476 A CN112196476 A CN 112196476A
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- Prior art keywords
- fuse
- shell
- torpedo
- horizontal well
- cable
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
-
- 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
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fuses (AREA)
Abstract
A horizontal well cable clustering perforating gun string safety release device. The method mainly solves the problem that a perforation instrument falls into a well due to the fact that an inclined section cable is broken easily when an existing horizontal well cable is subjected to cluster perforation and unfreezing. The method is characterized in that: the novel fuse is characterized in that a torpedo (2) is arranged inside the upper joint shell (1), a torpedo pressing cap (4) is arranged at the bottom of the torpedo pressing cap (4), a fuse shell (7) is connected to the bottom of the torpedo pressing cap (4) through a lock hook (5), a fuse (8) is arranged inside the fuse shell (7), the bottom of the fuse (8) is connected with a lower joint shell (12) through a connecting shaft (10), the upper portion of the lower joint shell (12) is connected with a three-core sealing plug-in component (11), and the fuse (8) is connected with the three-core sealing plug-in component (11. The horizontal well cable clustering perforating gun string safety release device can realize the separation of the cable and the perforating string when the cable is blocked, and the cable is prevented from being broken at the position of the deflecting section.
Description
Technical Field
The invention relates to the field of oil fields, in particular to a horizontal well cable clustering perforating gun string safety release device.
Background
At present, in the combined construction of pumping-in cable cluster perforation and bridge plug of an unconventional oil and gas horizontal well, the blocking accident often occurs because of fracturing sand burying, no bridge plug is released or perforating gun implosions and the like. Aiming at the problem, a mechanical weakness method is mainly adopted at present, namely a copper torpedo mode is adopted to lock the cable steel wire, and the armor steel wire outside the cable is properly reduced by a plurality of steel wires, so that the breaking force of the cable at the position is reduced. When the perforating gun string meets the blockage underground, the lifting force of the cable is gradually increased through the ground, and the perforating gun string is tried to be unlocked; and if the jam release fails, the lifting force is continuously increased, and the cable is broken at the cable weak point. However, in the releasing process, due to the special well body structure of the horizontal well, the cable weakness at the bridle head cannot be broken frequently, but the cable is broken at a certain position of the deflecting section, so that hundreds or even thousands of meters of cables are left in the well together with the perforating gun string, and the accident handling difficulty is increased.
Disclosure of Invention
In order to overcome the defect that a perforating instrument falls into a well due to the fact that a cable at an inclined section is prone to being pulled apart when an existing horizontal well cable is subjected to cluster perforation and unfreezing, the invention provides the horizontal well cable cluster perforating gun string safety release device.
The technical scheme of the invention is as follows: the utility model provides a horizontal well cable clustering perforation rifle cluster safety release, includes the top connection casing, the inside torpedo that has put of top connection casing, the torpedo bottom is equipped with the torpedo and presses the cap, and the fuse casing is connected through the latch hook to torpedo pressure cap bottom, and the inside fuse that is equipped with of fuse casing, fuse bottom connect the casing through the connecting axle, and lower joint casing upper portion is connected with three-core seal plug-in components, and the fuse passes through the power cord with three-core seal plug-in components and is connected.
The connector comprises a lower connector shell, a three-core sealing plug-in and a plug assembly, wherein the lower connector shell is internally provided with the plug assembly, and the upper connector shell, the torpedo, the three-core sealing plug-in and the plug assembly are connected through a cable.
The fuse comprises a heater sheath and a heater shell, the heater sheath and the heater shell are both connected to a fuse shell, a brake rod is arranged in the fuse shell, the upper end of the brake rod is located inside a lock hook, a boss is arranged in the middle of the brake rod, a spring is arranged between the upper portion of the boss and the fuse shell, a fusing ring is arranged outside the lower end of the brake rod, and the lower end of the fusing ring is fixed to the heater shell through an insulator.
And the heater shell is connected with a sealing needle and a grounding needle, wherein the sealing needle is connected with the three-core sealing plug-in unit through a lead.
And a shock pad and a disc spring are sequentially arranged between the bottom of the insulator and the shell of the heater.
The invention has the following beneficial effects: by adopting the scheme, the horizontal well cable clustering perforating gun string safety release device can realize the separation of the cable and the perforating string when the perforating gun string is blocked in the underground, avoid the cable from being broken at the position of the deflecting section, reduce the difficulty in handling the accident of the underground tool string blocking well and further reduce the accident handling cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of the brake lever to the fuse.
In the figure, 1-an upper connector shell, 2-a torpedo, 3-a press ring, 4-a torpedo press cap, 5-a lock hook, 6-a brake rod, 7-a fuse shell, 8-a fuse, 9-a device shell, 10-a connecting shaft, 11-a three-core sealing insert, 12-a lower connector shell, 13-a plug assembly, 14-a lower connector protective cap, 16-a spring, 17-a heater jacket, 18-a heater shell, 19-a sealing needle, 20-a rubber sleeve, 21-a grounding needle, 22-a disc spring, 23-a shock pad, 24-an insulator and 25-a fusing ring.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
shown by figure 1, 2, a horizontal well cable clustering perforation rifle cluster safety release, including top connection casing 1, the 1 bottom outside of top connection casing is connected with device casing 9, and top connection casing 1 is inside to have set torpedo 2, and 2 bottoms of torpedo are equipped with torpedo and press cap 4, and are equipped with clamping ring 3 between torpedo 2 and the torpedo press cap 4, and torpedo presses cap 4 to pass through threaded connection on joining casing 1 to it is fixed with torpedo 2. The interior of the torpedo pressing cap 4 is hollow, and the side wall is provided with a cable through hole. Fuse casing 7 is connected through latch hook 5 in 4 bottoms of torpedo pressure cap, and fuse 8 is equipped with to fuse casing 7 inside, and 5 insides of latch hook have been put brake lever 6, and 6 middle parts of brake lever are equipped with the boss, are equipped with the spring between boss upper portion and the fuse casing 7. The fuse 8 comprises a heater sheath 17 and a heater shell 18, the heater sheath 17 and the heater shell 18 are both connected to the fuse shell 7, a shock absorption pad is arranged at the center of the heater sheath 17, the lower end of the brake rod 6 penetrates through the shock absorption pad and then is arranged in the fusing ring 18, an insulator 24 is arranged at the lower end of the fusing ring 25, and a shock absorption pad 23 and a disc spring 22 are sequentially arranged between the bottom of the insulator 24 and the heater shell 18. The heater shell 18 is connected with a sealing pin 19 and a grounding pin 24, wherein the sealing pin 19 is connected with the three-core sealing plug-in 11 through a lead. The bottom of the fuse 8 is connected with a lower joint shell 12 through a connecting shaft 10, the outer portion of the lower joint shell 12 is connected with a device shell 9, and the upper portion of the lower joint shell 12 is connected with a three-core sealing plug-in 11. The interior of the lower joint shell 12 is provided with a plug assembly 13, and the upper joint shell 1, the torpedo 2, the three-core sealing plug-in 11 and the plug assembly 13 are connected through cables. A lower joint protection cap 14 is connected to the bottom of the lower joint housing 12.
The safety release device is applied to the combined construction of the cable cluster perforation and the bridge plug of the unconventional oil and gas well, and during construction, the underground perforating gun string sequentially comprises a cable, a perforating gun string safety release device, a magnetic locator, a replacement joint, a cluster perforating gun string, a conversion joint, a bridge plug setting tool and the bridge plug from top to bottom. During normal clustering perforation construction, the safety release device can directly replace a bridle head for original cable perforation, the cable, a perforating gun string, a bridge plug and other tools are connected together, when the bridge plug and the detonating perforator are seated, current can normally supply negative electricity to the underground tool string through the cable and the device, the safety release device supplies electricity to the gun string, and the detonating or bridge plug seating of the clustering perforator is realized. When a well clamping problem occurs to the underground tool string, positive electricity is supplied to the safety release device through the cable, current is applied to the resistor in the fuse 8, the temperature of the fuse 8 rises, the fusing ring 25 surrounding the fuse 8 is fused, and the constraint of the fusing ring 25 on the fuse 8 is eliminated. The brake rod 6 moves downwards under the pushing of the spring 16, the large-diameter part of the brake rod 6 is separated from the right end of the lock hook 5, the lock hook 5 is released from the constraint of the fuse housing 7, and at the moment, under the action of 10-30Kg of pulling force, the upper connector housing 1, the torpedo 2, the press ring 3, the torpedo press cap 4 and the lock hook 5 can be separated from other parts of the safety release device and the perforating gun string, so that the safety release is realized.
Claims (5)
1. The utility model provides a horizontal well cable cluster perforating rifle cluster safety release, includes top connection casing (1), its characterized in that: the novel fuse is characterized in that a torpedo (2) is arranged inside the upper joint shell (1), a torpedo pressing cap (4) is arranged at the bottom of the torpedo pressing cap (4), a fuse shell (7) is connected to the bottom of the torpedo pressing cap (4) through a lock hook (5), a fuse (8) is arranged inside the fuse shell (7), the bottom of the fuse (8) is connected with a lower joint shell (12) through a connecting shaft (10), the upper portion of the lower joint shell (12) is connected with a three-core sealing plug-in component (11), and the fuse (8) is connected with the three-core sealing plug-in component (11.
2. The horizontal well cable clustering perforating gun string safety release device according to claim 1, characterized in that: a plug assembly (13) is arranged in the lower connector shell (12), and the upper connector shell (1), the torpedo (2), the three-core sealing plug-in (11) and the plug assembly (13) are connected through cables.
3. The horizontal well cable clustering perforating gun string safety release device according to claim 2, characterized in that: fuse (8) are including heater sheath (17), heater shell (18), heater sheath (17), heater shell (18) are all connected on fuse casing (7), brake lever (6) have been put to fuse casing (7) inside, and brake lever (6) upper end is located latch hook (5) inside, and brake lever (6) middle part is equipped with the boss, is equipped with the spring between boss upper portion and fuse casing (7), and brake lever (6) lower extreme outside is equipped with fusing ring (25), fusing ring (25) lower extreme passes through insulator (24) to be fixed on heater shell (18).
4. The horizontal well cable clustering perforating gun string safety release device according to claim 3, characterized in that: and a sealing needle (19) and a grounding needle (24) are connected to the heater shell (18), wherein the sealing needle (19) is connected with the three-core sealing plug-in (11) through a lead.
5. The horizontal well cable clustering perforating gun string safety release device according to claim 4, characterized in that: a shock absorption pad (23) and a disc spring (22) are sequentially arranged between the bottom of the insulator (24) and the heater shell (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937980.3A CN112196476A (en) | 2020-09-09 | 2020-09-09 | Horizontal well cable clustering perforating gun string safety release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937980.3A CN112196476A (en) | 2020-09-09 | 2020-09-09 | Horizontal well cable clustering perforating gun string safety release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196476A true CN112196476A (en) | 2021-01-08 |
Family
ID=74005953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010937980.3A Pending CN112196476A (en) | 2020-09-09 | 2020-09-09 | Horizontal well cable clustering perforating gun string safety release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153238A (en) * | 2021-04-23 | 2021-07-23 | 西安茂泽电子科技有限公司 | Releasable short-circuit device for oil and gas well perforation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509481A (en) * | 1992-03-26 | 1996-04-23 | Schlumberger Technology Corporation | Method of perforating including an automatic release apparatus suspending by wireline or coiled tubing in a wellbore for perforating a long length interval of the wellbore in a single run using a gun string longer than a wellhead lubricator |
| US6431269B1 (en) * | 2000-10-11 | 2002-08-13 | Schlumberger Technology Corporation | Electrically controlled release device |
| CN202767972U (en) * | 2012-09-27 | 2013-03-06 | 宋胜利 | Novel well-logging bridle directly connected with torpedo |
| CN204419138U (en) * | 2014-12-09 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司 | Horizontal well cable transmission lateral ring guide clustering directional perforation mechanism |
| CN105201435A (en) * | 2015-09-18 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司 | Explosion releasing and releasing method for cable transportation clustering perforation operation |
| CN206987790U (en) * | 2017-06-28 | 2018-02-09 | 西安方元能源工程有限责任公司 | Intelligent perforation head harness |
| CN107725010A (en) * | 2017-10-27 | 2018-02-23 | 西安石竹能源科技有限公司 | A kind of fusible single-core cable release device |
| CN108457602A (en) * | 2017-12-18 | 2018-08-28 | 中国石油天然气集团公司 | A kind of releasable connector element |
-
2020
- 2020-09-09 CN CN202010937980.3A patent/CN112196476A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509481A (en) * | 1992-03-26 | 1996-04-23 | Schlumberger Technology Corporation | Method of perforating including an automatic release apparatus suspending by wireline or coiled tubing in a wellbore for perforating a long length interval of the wellbore in a single run using a gun string longer than a wellhead lubricator |
| US6431269B1 (en) * | 2000-10-11 | 2002-08-13 | Schlumberger Technology Corporation | Electrically controlled release device |
| CN202767972U (en) * | 2012-09-27 | 2013-03-06 | 宋胜利 | Novel well-logging bridle directly connected with torpedo |
| CN204419138U (en) * | 2014-12-09 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司 | Horizontal well cable transmission lateral ring guide clustering directional perforation mechanism |
| CN105201435A (en) * | 2015-09-18 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司 | Explosion releasing and releasing method for cable transportation clustering perforation operation |
| CN206987790U (en) * | 2017-06-28 | 2018-02-09 | 西安方元能源工程有限责任公司 | Intelligent perforation head harness |
| CN107725010A (en) * | 2017-10-27 | 2018-02-23 | 西安石竹能源科技有限公司 | A kind of fusible single-core cable release device |
| CN108457602A (en) * | 2017-12-18 | 2018-08-28 | 中国石油天然气集团公司 | A kind of releasable connector element |
Non-Patent Citations (1)
| Title |
|---|
| 徐继勇: "水平井分簇射孔熔断释放电缆解卡技术现场试验与改进", <<中国石油和化工标准与质量>> * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153238A (en) * | 2021-04-23 | 2021-07-23 | 西安茂泽电子科技有限公司 | Releasable short-circuit device for oil and gas well perforation |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210108 |
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| RJ01 | Rejection of invention patent application after publication |