CN113137187A - Small well bore drill rod explosion buckle releasing device for ultra-deep and ultra-high temperature well - Google Patents
Small well bore drill rod explosion buckle releasing device for ultra-deep and ultra-high temperature well Download PDFInfo
- Publication number
- CN113137187A CN113137187A CN202010593827.3A CN202010593827A CN113137187A CN 113137187 A CN113137187 A CN 113137187A CN 202010593827 A CN202010593827 A CN 202010593827A CN 113137187 A CN113137187 A CN 113137187A
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- deep
- high temperature
- shell
- drill rod
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- 238000004880 explosion Methods 0.000 title claims abstract description 31
- 239000002360 explosive Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005474 detonation Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 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
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/007—Drilling by use of explosives
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to the field of a small well bore drill rod loosening device for an ultra-deep and ultra-high temperature well, in particular to an explosive loosening device for a small well bore drill rod for an ultra-deep and ultra-high temperature well. Including basket, ignition assembly, powder charge casing, the bullet tail of threaded connection in proper order, the inside powder charge that is equipped with of powder charge casing, the casing is the powder charge space, and the powder charge link up inside the powder charge casing. By adopting the slim hole explosion tripping device for the ultra-deep and ultra-high temperature well, the bearing performance of the cartridge case is greatly improved by redesigning the cartridge case structure, and the explosion tripping performance is greatly improved by adopting a novel multi-groove structure, so that the tripping effect of the small-diameter explosion tripping device can be improved, and underground falling objects are reduced after tripping is completed.
Description
Technical Field
The invention relates to the field of a small well bore drill rod loosening device for an ultra-deep and ultra-high temperature well, in particular to an explosive loosening device for a small well bore drill rod for an ultra-deep and ultra-high temperature well.
Background
In the construction operation of oil and gas wells, the drill rod is frequently blocked. One of the common treatment means for solving the jamming accident is to explode and loosen the coupling, namely, an explosion work mode is adopted at the coupling connected with the drill rod to loosen the threaded connection at the coupling, the drill is rotated and separated, the pipe column above the position of the loosening is lifted out of a well mouth, and then the next step of fishing or other construction measures is carried out.
However, with the increase of the deep exploration and development of oil and gas resources, ultra-high temperature and high pressure ultra-deep well slim holes are more and more, and the risks of blockage and blockage during drilling in complex strata are also increased year by year. Especially, in western regions of Xinjiang and southern regions, ultra-deep wells are more and more, the temperature reaches about 200 ℃, the pressure reaches 140 MPa, and the conventional explosive thread loosening device for the oil-gas well does not aim at the products of ultra-high temperature, high pressure and ultra-deep well slim holes, so that the requirement on the aspect can be met, and the slim hole drill rod explosive thread loosening device for the ultra-deep and ultra-high temperature wells is developed.
Disclosure of Invention
The invention aims to design the structure of a drill rod explosion tripping device by utilizing a linear explosive charging technology, and achieves the final aim by improving the performance, temperature-resistant and pressure-resistant indexes and diameter reduction methods of the drill rod explosion tripping device, thereby providing the small-borehole drill rod explosion tripping device for the ultra-deep and ultra-high temperature well.
The technical scheme is as follows:
a small well bore drill rod explosion release device for ultra-deep and ultra-high temperature wells comprises an ignition assembly, a charge shell and a bullet tail; the ignition assembly is in threaded connection with the charge shell, a charge column is arranged in the charge shell, a charge space is formed in the shell, and the charge column penetrates through the charge shell; the tail of the bullet is plugged at the tail end of the charge shell.
Furthermore, a plurality of grooves are formed in the outer wall of the medicine charging shell. The charge housing is cylindrical. The outer wall of the powder charging shell is provided with a plurality of annular grooves. The powder charging shell is formed by connecting a plurality of sections of powder charging shell short sections. And the short sections of the multi-section charging shell are in threaded connection.
Furthermore, the ignition assembly is internally provided with an ignition detonating device of a magnetoelectric detonator. The ignition assembly further comprises a sealing contact pin, an ignition assembly shell, a spring, a detonator seat and a pressing screw; the sealing element, the spring, the detonator seat and the pressing screw are sequentially sleeved in the ignition assembly shell from top to bottom; the detonator is located on the detonator seat; the sealing element is in sealing insertion fit with the ignition assembly shell. The ignition device is characterized in that a sealing joint is connected below the ignition assembly and is in threaded connection with the shell of the ignition assembly, the ignition device further comprises an explosion wire, one end of the explosion wire is connected with the ignition assembly, and the other end of the explosion wire penetrates through the sealing joint and is inserted into the explosive column. And the outer part of the detonating cord is sleeved with a detonating cord protective sleeve.
The invention has the beneficial effects that:
by adopting the slim hole explosion tripping device for the ultra-deep and ultra-high temperature well, the pressure bearing performance of the cartridge case is improved by redesigning the cartridge case structure. Adopt neotype multislot structure, improved the explosion and loosened the knot performance to can realize the pine of the explosion pine of minor diameter and detain the pine of device and detain the effect, and reduce the underground junk after the pine is detained and is accomplished.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a multi-charge shell construction;
FIG. 3 is a schematic view of an ignition assembly;
in fig. 1: the explosive-proof ignition device comprises a lifting basket 1, a sealing piece 2, an ignition assembly 3, a sealing joint 4, a detonating cord 5, a detonating cord protective sleeve 6, a explosive column 7, a explosive charging shell 8, a bullet tail 9, a sealing pin 10, an ignition assembly shell 11, a spring 12, a detonator seat 13, a detonator 14 and a pressing screw 15.
Detailed Description
To make the structure and advantages of the present invention clearer, the structure of the present invention will be further described with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 and 2, a small well bore drill rod explosion tripping device for ultra-deep and ultra-high temperature wells comprises a lifting basket, an ignition assembly, a charging shell, a spring tail and a sealing joint.
The lifting basket is welded at the upper end of the ignition assembly, and a sealing joint, a charging shell and a bullet tail are sequentially connected below the ignition assembly in a threaded manner; and sealing rings are arranged between the sealing joint and the ignition assembly and between the sealing joint and the charging shell, so that the sealing joint is in threaded sealing connection with the ignition assembly and the charging shell.
The sealing element is inserted at the upper end of the ignition assembly in a sealing manner, a metal conductor is arranged in the sealing element, and the ignition assembly is electrically connected with a power supply through the sealing element.
A charge space is arranged in the charge shell, and the charge column penetrates through the charge shell; the bullet tail is in threaded sealing connection with the powder charging shell and is blocked at the tail end of the powder charging shell.
The outer wall of the medicine charging shell is provided with a plurality of grooves. The charge housing is cylindrical. The outer wall of the powder charging shell is provided with a plurality of annular grooves. The powder charging shell is formed by connecting a plurality of sections of powder charging shell short sections. And the short sections of the multi-section charging shell are in threaded connection.
Example two:
referring to fig. 3, a slim hole explosion tripping device for an ultra-deep and ultra-high temperature well comprises:
the explosive-charging device comprises a lifting basket 1, a sealing element 2, an ignition assembly 3, a sealing joint 4, an explosion wire 5, an explosion wire protective sleeve 6, a explosive column 7, a charging shell 8 and a projectile tail 9.
A sealing contact pin 10 is arranged on the lifting basket 1, the lifting basket 1 and the shell 8 are connected with the sealing joint 4 through threads, the shell 8 is filled with a explosive column 7 and then inserted with an explosive fuse protective sleeve 5, the projectile tail 9 is connected with the shell 8 through threads, and the explosive fuse 5 is inserted into the explosive fuse protective sleeve 6 from the upper end of the sealing joint 4.
The shell 8 is made of high-performance metal materials, the surface hardness of the shell is improved through a special heat treatment process, and the multiple grooves are formed in the shell, so that the bearing performance is improved, the shell is easy to break into small pieces after the shell is loosened by explosion after the shell is lowered into the well, and underground falling objects caused by the loosening of the explosion are greatly reduced. The detonating cord 5 is inserted into the protective sleeve 6 through the sealing joint 4, and the reliability of the detonating mode is ensured.
And the ignition detonation device of the magnetoelectric detonator is assembled in the ignition assembly. The ignition assembly further comprises a sealing contact pin, an ignition assembly shell, a spring, a detonator seat and a pressing screw; the sealing element, the spring, the detonator seat and the pressing screw are sequentially sleeved in the ignition assembly shell from top to bottom; the detonator is located on the detonator seat; the sealing element is in sealing insertion fit with the ignition assembly shell. The ignition device is characterized in that a sealing joint is connected below the ignition assembly and is in threaded connection with the shell of the ignition assembly, the ignition device further comprises an explosion wire, one end of the explosion wire is connected with the ignition assembly, and the other end of the explosion wire penetrates through the sealing joint and is inserted into the explosive column. And the outer part of the detonating cord is sleeved with a detonating cord protective sleeve.
The working principle of the invention is as follows: after the operator measures the clamping point, a reaction torque is applied to the part to be loosened in advance, then the ground operator uses the power supply to detonate the ignition assembly, the ignition assembly detonates the detonating cord, the explosive column in the shell of the device is detonated by the detonating cord, and the drilling tool is withdrawn from the screw thread by utilizing the resonance action of the explosive column, so that the drilling tool above the clamping point is taken out, and the purpose of loosening the thread is achieved.
Claims (11)
1. A small well bore drill rod explosion release device for ultra-deep and ultra-high temperature wells is characterized by comprising an ignition assembly, a charge shell and a bullet tail; the ignition assembly is in threaded connection with the charge shell, a charge column is arranged in the charge shell, a charge space is formed in the shell, and the charge column penetrates through the charge shell; the tail of the bullet is plugged at the tail end of the charge shell.
2. The small-bore hole drill rod explosive tripping device for the ultra-deep and ultra-high temperature well according to claim 1, wherein a plurality of grooves are formed on the outer wall of the explosive charging shell.
3. The small bore hole drill rod explosive tripping device for ultra-deep, ultra-high temperature wells according to claim 2, wherein said charge housing is cylindrical.
4. The small hole drill rod explosive tripping device for ultra-deep and ultra-high temperature wells according to claim 3, wherein the outer wall of the charge shell is provided with a plurality of ring grooves.
5. The small-bore hole drill rod explosive tripping device for the ultra-deep and ultra-high temperature well according to claim 4, wherein the charge casing is formed by connecting multi-segment charge casing short sections.
6. The small-hole drill pipe explosive tripping device for the ultra-deep and ultra-high temperature well according to claim 5, wherein the multi-segment charging shell short sections are in threaded connection.
7. The slim-hole drill rod explosion tripping device for ultra-deep and ultra-high temperature wells according to any one of claims 1 to 6, wherein the ignition assembly is internally equipped with an ignition and detonation device of a magnetoelectric detonator.
8. The slim hole drill rod explosion tripping device for ultra-deep, ultra-high temperature wells, according to claim 7, wherein said ignition assembly further comprises a sealing pin, an ignition assembly housing, a spring, a detonator seat, a swage; the sealing element, the spring, the detonator seat and the pressing screw are sequentially sleeved in the ignition assembly shell from top to bottom; the detonator is located on the detonator seat; the sealing element is in sealing insertion fit with the ignition assembly shell.
9. The slim hole drill rod explosion tripping device for ultra-deep and ultra-high temperature wells, according to claim 8, wherein a sealing joint is connected below the ignition assembly and is in threaded connection with the ignition assembly housing.
10. The slim hole drill rod explosion release device for ultra-deep and ultra-high temperature wells as claimed in claim 9, further comprising a detonating cord, one end of which is connected with the ignition assembly and the other end of which is inserted into the charge column through a sealing joint.
11. The slim hole drill rod explosion tripping device for ultra-deep and ultra-high temperature wells, according to claim 10, wherein the detonating cord is externally sleeved with a detonating cord protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593827.3A CN113137187A (en) | 2020-06-28 | 2020-06-28 | Small well bore drill rod explosion buckle releasing device for ultra-deep and ultra-high temperature well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593827.3A CN113137187A (en) | 2020-06-28 | 2020-06-28 | Small well bore drill rod explosion buckle releasing device for ultra-deep and ultra-high temperature well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137187A true CN113137187A (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010593827.3A Pending CN113137187A (en) | 2020-06-28 | 2020-06-28 | Small well bore drill rod explosion buckle releasing device for ultra-deep and ultra-high temperature well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137187A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228971Y (en) * | 1995-05-05 | 1996-06-12 | 高瑞 | Well repair bomb |
| CN101726222A (en) * | 2009-11-19 | 2010-06-09 | 西安近代化学研究所 | Adjustable-charge high-pressure resistance device for breakouting pack of dynamite |
| CN102383752A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Novel releasing, explosion and buckle loosening method and device for extended reach well and horizontal well |
| CN204098854U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of electric cable bridge plug dropping feeder igniting sealing device |
| CN208347752U (en) * | 2018-04-24 | 2019-01-08 | 中国石油集团测井有限公司 | Cable priming device |
| US20200072029A1 (en) * | 2018-08-10 | 2020-03-05 | Gr Energy Services Management, Lp | Downhole perforating tool with integrated detonation assembly and method of using same |
-
2020
- 2020-06-28 CN CN202010593827.3A patent/CN113137187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228971Y (en) * | 1995-05-05 | 1996-06-12 | 高瑞 | Well repair bomb |
| CN101726222A (en) * | 2009-11-19 | 2010-06-09 | 西安近代化学研究所 | Adjustable-charge high-pressure resistance device for breakouting pack of dynamite |
| CN102383752A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Novel releasing, explosion and buckle loosening method and device for extended reach well and horizontal well |
| CN204098854U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of electric cable bridge plug dropping feeder igniting sealing device |
| CN208347752U (en) * | 2018-04-24 | 2019-01-08 | 中国石油集团测井有限公司 | Cable priming device |
| US20200072029A1 (en) * | 2018-08-10 | 2020-03-05 | Gr Energy Services Management, Lp | Downhole perforating tool with integrated detonation assembly and method of using same |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220214 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: SINOPEC Group Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100027 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Applicant before: SINOPEC Group Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210720 |