CN105888625A - Piston-spring type perforating gun expansion prevention and protection device - Google Patents
Piston-spring type perforating gun expansion prevention and protection device Download PDFInfo
- Publication number
- CN105888625A CN105888625A CN201610459826.3A CN201610459826A CN105888625A CN 105888625 A CN105888625 A CN 105888625A CN 201610459826 A CN201610459826 A CN 201610459826A CN 105888625 A CN105888625 A CN 105888625A
- Authority
- CN
- China
- Prior art keywords
- piston
- piston rod
- pressure relief
- pressure release
- perforating gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/117—Shaped-charge perforators
Abstract
The invention provides a piston-spring type perforating gun expansion prevention and protection device. The device comprises a pressure relief connection cylinder, the left end of the pressure relief connection cylinder is provided with a connector seal ring, the right end of the pressure relief connection cylinder is connected with the left end of a pressure relief sleeve, pressure relief holes are formed at the periphery of the pressure relief sleeve, and a circular hole is formed in the right end of the pressure relief sleeve; one end of a piston rod is arranged in an inner cavity of the pressure relief connection cylinder, and the other end of the piston rod corresponds to the circular hole; the piston rod is provided with a spring. When the device is used, the left end of the pressure relief connection cylinder is connected with a perforating gun, high pressure gas acts on the left end face of the piston rod to push the piston rod to move rightwards and compress the spring, and when the left end face of the piston rod moves to the pressure relief holes of the pressure relief sleeve, the high pressure gas can be exhausted from the pressure relief holes to complete pressure relief. The device has the advantages of being simple in structure and easy to assemble and implement.
Description
Technical field
The present invention relates to oil gas field perforation security protection technology field, particularly to a kind of piston-
Swollen protection device prevented by spring perforating gun.
Background technology
Perforation is as an important process in In Oil Field Exploration And Development, and it is it is crucial that by under perforating gun
Target zone to well, utilize high explosive blast formed energy-gathering jetting puncture Oil/gas Well casing wall,
Cement sheath and formation, set up gas stream passage between oil-gas Layer and pit shaft.Perforating bullet draws
Can produce High Temperature High Pressure detonation gas after quick-fried, when well killing fluid, not or detonation gas pressure reaches one
During fixed value, pressure in perforating gun can be caused to exceed the body of a gun and to resist the intrinsic pressure limit, thus cause swollen rifle
The accidents such as card rifle, extend the oilfield prospecting developing cycle.Therefore, in order to prevent perforation accident
Occur, need perforating gun is carried out pressure release, make body of a gun external and internal pressure reach poised state.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of perforation
Swollen protection device prevented by rifle, with realize pressure in perforating gun raise suddenly time, make the pressure in the body of a gun
Releasing in time, perforating gun external and internal pressure reaches poised state, thus reduces the generation of perforation accident,
Guarantee that perforating job is smoothed out safely.
In order to achieve the above object, the technical solution used in the present invention is as follows:
Swollen protection device prevented by a kind of piston-spring perforating gun, connects cylinder 1 including pressure release, lets out
Pressure connects the left end of cylinder 1 and is provided with joint sealing circle 2, and pressure release connects the right-hand member connection of cylinder 1 and lets out
The left end of gland 6, pressure release overlaps 6 surroundings and is provided with relief hole 7, and the right-hand member of pressure release set 6 is arranged
There is circular hole 9；Pressure release connects the inner chamber of cylinder 1 and arranges one end of piston rod 4, piston rod 4 another
One end is corresponding with circular hole 9；Spring 5 it is provided with on piston rod 4.
It is provided with piston packing 3 on the shoulder of described piston rod 4.
The two ends of described spring 5 are right with the inner chamber of the shoulder of piston rod 4 and pressure release set 6 respectively
End in contact.
Described pressure release connects cylinder 1 two ends taper pipe thread.
Described pressure release set 6 is round cup shape.
Advantages of the present invention and feature be:
(1) position that pressure release connection cylinder 1 is connected with perforating gun 8 afterbody is provided with joint sealing circle
2, can effectively ensure that this device and the reliability of perforating gun connection and sealing.
(2) it is cased with spring 5 on piston rod 4, to the gas pressure suddenly increased in perforating gun
There is the spring recoverable deformation after cushioning effect, and compression, piston rod 4 is pushed back to pressure release
Connect in cylinder 1；Relief hole 7 discharges gases at high pressure and reaches the purpose of pressure release simultaneously, simple in construction,
Assembling and enforcement are easily.
Accompanying drawing explanation
Fig. 1 is that swollen protection device Standard schematic diagram prevented by piston-spring perforating gun.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is that swollen protection device fundamental diagram prevented by piston-spring perforating gun.
Detailed description of the invention
Structural principle and detailed description of the invention to the present invention make brief retouching below in conjunction with the accompanying drawings
State.
With reference to shown in Fig. 1, Fig. 2, swollen protection device prevented by a kind of piston-spring perforating gun,
Connecting cylinder 1 including pressure release, pressure release connects the left end of cylinder 1 and is provided with joint sealing circle 2, pressure release
The right-hand member connecting cylinder 1 connects the left end of pressure release set 6, and pressure release is overlapped 6 surroundings and is provided with relief hole 7,
The right-hand member of pressure release set 6 is provided with circular hole 9；Pressure release connects the inner chamber of cylinder 1 and arranges piston rod 4
One end, the other end of piston rod 4 is corresponding with circular hole 9；Spring 5 it is provided with on piston rod 4.
It is provided with piston packing 3 on the shoulder of described piston rod 4.
The two ends of described spring 5 are right with the inner chamber of the shoulder of piston rod 4 and pressure release set 6 respectively
End in contact.
Described pressure release connects cylinder 1 two ends and is provided with taper pipe thread.
Described pressure release set 6 is round cup shape.
The operation principle of the present invention:
With reference to shown in Fig. 3, during work, pressure release connects left end taper pipe thread and the perforating gun 8 of cylinder 1
Afterbody is connected, and pressure release connects cylinder 1 and is provided with joint sealing circle 2 with perforating gun 8 afterbody connecting place,
Can effectively ensure that this device and the reliability of perforating gun connection and sealing；After perforating bullet explodes
When the gas pressure of generation is too high, gases at high pressure act on the left side of piston rod 4, promote and live
Stopper rod 4 moves right and compression spring 5.When the left side of piston rod 4 moves to pressure release set 6
Relief hole 7 at time, gases at high pressure can be flowed out by relief hole 7, complete pressure release, to reach to penetrate
Swollen effect prevented by hole rifle.When gun body external and internal pressure equalizes, the spring 5 compressed recovers deformation,
Piston rod 4 pushing back to pressure release and connects at the shoulder of cylinder 1, device recovers to original state state.
Claims (5)
1. swollen protection device prevented by piston-spring perforating gun, it is characterised in that include letting out
Pressure connects cylinder (1), and pressure release connects the left end of cylinder (1) and is provided with joint sealing circle (2), lets out
Pressure connects the left end of right-hand member connection pressure release set (6) of cylinder (1), and pressure release set (6) surrounding sets
Being equipped with relief hole (7), the right-hand member of pressure release set (6) is provided with circular hole (9)；Pressure release connects cylinder
(1) inner chamber arranges one end of piston rod (4), the other end of piston rod (4) and circular hole
(9) corresponding；Spring (5) it is provided with on piston rod (4).
Swollen protection dress prevented by a kind of piston-spring perforating gun the most according to claim 1
Put, it is characterised in that on the shoulder of described piston rod (4), be provided with piston packing (3).
Swollen protection dress prevented by a kind of piston-spring perforating gun the most according to claim 1
Put, it is characterised in that the two ends of described spring (5) respectively with the shoulder of piston rod (4)
Contact with the inner chamber right-hand member of pressure release set (6).
Swollen protection dress prevented by a kind of piston-spring perforating gun the most according to claim 1
Put, it is characterised in that described pressure release connects cylinder (1) two ends taper pipe thread.
Swollen protection dress prevented by a kind of piston-spring perforating gun the most according to claim 1
Put, it is characterised in that described pressure release set (6) is round cup shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459826.3A CN105888625A (en) | 2016-06-22 | 2016-06-22 | Piston-spring type perforating gun expansion prevention and protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459826.3A CN105888625A (en) | 2016-06-22 | 2016-06-22 | Piston-spring type perforating gun expansion prevention and protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888625A true CN105888625A (en) | 2016-08-24 |
Family
ID=56718060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459826.3A Pending CN105888625A (en) | 2016-06-22 | 2016-06-22 | Piston-spring type perforating gun expansion prevention and protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888625A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502610A (en) * | 2020-05-29 | 2020-08-07 | 西安石油大学 | Mechanical vibration damper for perforating section pipe column |
| CN113494870A (en) * | 2021-06-10 | 2021-10-12 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Buffer device for reusable ejection simulation system |
| CN113550723A (en) * | 2020-04-23 | 2021-10-26 | 中国石油天然气股份有限公司 | Pressure relief device and perforating gun |
| CN114658397A (en) * | 2022-04-15 | 2022-06-24 | 吉林市双林射孔器材有限责任公司 | Oil gas well casing slotting mesh-making perforator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287879A (en) * | 1993-04-13 | 1994-02-22 | Eastern Oil Tools Pte Ltd. | Hydraulically energized wireline blowout preventer |
| CN2438832Y (en) * | 2000-09-05 | 2001-07-11 | 大港油田集团测井公司 | Decompression joint for oil-well perforating gun |
| CN101435326A (en) * | 2008-11-24 | 2009-05-20 | 中国石油集团长城钻探工程有限公司 | Oil pipe transmission type perforation anti-explosion gun protection method |
| CN202673259U (en) * | 2012-07-02 | 2013-01-16 | 盘锦辽河油田裕隆实业集团有限公司 | Combined type double-piston pressure relief joint of oil perforating gun |
| CN205840851U (en) * | 2016-06-22 | 2016-12-28 | 西安石油大学 | Swollen protection device prevented by a kind of piston spring formula perforating gun |
-
2016
- 2016-06-22 CN CN201610459826.3A patent/CN105888625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287879A (en) * | 1993-04-13 | 1994-02-22 | Eastern Oil Tools Pte Ltd. | Hydraulically energized wireline blowout preventer |
| CN2438832Y (en) * | 2000-09-05 | 2001-07-11 | 大港油田集团测井公司 | Decompression joint for oil-well perforating gun |
| CN101435326A (en) * | 2008-11-24 | 2009-05-20 | 中国石油集团长城钻探工程有限公司 | Oil pipe transmission type perforation anti-explosion gun protection method |
| CN202673259U (en) * | 2012-07-02 | 2013-01-16 | 盘锦辽河油田裕隆实业集团有限公司 | Combined type double-piston pressure relief joint of oil perforating gun |
| CN205840851U (en) * | 2016-06-22 | 2016-12-28 | 西安石油大学 | Swollen protection device prevented by a kind of piston spring formula perforating gun |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550723A (en) * | 2020-04-23 | 2021-10-26 | 中国石油天然气股份有限公司 | Pressure relief device and perforating gun |
| CN113550723B (en) * | 2020-04-23 | 2023-12-22 | 中国石油天然气股份有限公司 | Pressure relief device and perforating gun |
| CN111502610A (en) * | 2020-05-29 | 2020-08-07 | 西安石油大学 | Mechanical vibration damper for perforating section pipe column |
| CN111502610B (en) * | 2020-05-29 | 2021-11-30 | 西安石油大学 | Mechanical vibration damper for perforating section pipe column |
| CN113494870A (en) * | 2021-06-10 | 2021-10-12 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Buffer device for reusable ejection simulation system |
| CN114658397A (en) * | 2022-04-15 | 2022-06-24 | 吉林市双林射孔器材有限责任公司 | Oil gas well casing slotting mesh-making perforator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |