CN115126451B - Steel wire throwing and fishing ignition system - Google Patents
Steel wire throwing and fishing ignition system Download PDFInfo
- Publication number
- CN115126451B CN115126451B CN202210758725.1A CN202210758725A CN115126451B CN 115126451 B CN115126451 B CN 115126451B CN 202210758725 A CN202210758725 A CN 202210758725A CN 115126451 B CN115126451 B CN 115126451B
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- CN
- China
- Prior art keywords
- detonating
- ignition
- gun
- connector
- delay
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 23
- 210000000078 claw Anatomy 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 21
- 238000005474 detonation Methods 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B43/116—Gun or shaped-charge perforators
- E21B43/1185—Ignition systems
- E21B43/11855—Ignition systems mechanically actuated, e.g. by movement of a wireline or a drop-bar
-
- 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
Abstract
The invention discloses a steel wire throwing and fishing ignition system which comprises an ignition device and a gun head device, wherein the ignition device comprises a fishing neck, a pressure detonating device, a delay detonating device and a baffle punching device, the fishing neck, the pressure detonating device, the delay detonating device and the baffle punching device are sequentially and fixedly connected, the gun head device is connected with a perforating gun and then is lowered into the bottom of a well along with an oil pipe, the ignition device is independently lowered through a steel wire tool, and the ignition device is clamped and fixed with the gun head device through self weight after the ignition device is lowered into the bottom of the well to form a pipe string structure. The perforating gun and the ignition device can be put in for several times during operation, so that the condition that the ignition device is accidentally ignited to detonate the perforating gun in advance is avoided, and when the perforating gun cannot normally perforate due to the failure of the ignition device, the ignition device can be salvaged only by utilizing the steel wire tool, and the whole pipe string structure is not required to be started.
Description
Technical Field
The invention relates to a steel wire casting and fishing ignition system, and belongs to the technical field of oil and gas field development.
Background
For tubing conveyed perforating operations, perforating is typically performed by means of a detonation device, a delay device, and a perforating gun in combination. For example, chinese patent publication No. CN211422609U discloses an oil-gas well perforating device and a cable transmission, pumping and oil pipe transmission perforating device, the publication date is 09/04/2020, the oil-gas well perforating device comprises a perforating gun, a side window middle joint and a blind hole joint, and the perforating gun, the side window middle joint and the blind hole joint are connected in sequence; a signal transmission circuit, a decoding module, a power supply module and a digital detonator are sequentially arranged in a cavity connected with the side window middle joint and the blind hole joint; the signal transmission circuit receives the perforation command and transmits the perforation command to the decoding module, the decoding module enables a switch of the power supply module to be opened, the power supply module provides current to detonate the digital detonator, the digital detonator is detonated, and the perforating charges of the perforating gun are detonated to perforate the stratum.
However, the main problems of the prior art are: in the process of descending the well, the traditional pipe string can cause accidental ignition of an initiator and the situation that a perforating gun is detonated in advance; it may also occur that the detonation or delay device is not properly output and the perforating gun is not properly perforated. The two conditions all need to lift out the whole pipe string for subsequent treatment, which is time-consuming and labor-consuming, and meanwhile, the later is possible to accidentally detonate in the lifting process, so that the site safety accident is easy to cause.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a steel wire casting and fishing ignition system. The perforating gun and the ignition device can be put into the well in a separated mode when the perforating gun and the ignition device are operated, and the situation that the whole pipe string is required to be subjected to subsequent treatment when the perforating gun is detonated in advance or when the ignition device cannot detonate the perforation normally in the conventional pipe string system is avoided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a steel wire throws and drags for ignition system which characterized in that: the device comprises an ignition device and a gun head device, wherein the ignition device comprises a salvaging neck, a pressure detonating device, a delay detonating device and a baffle punching device, the salvaging neck, the pressure detonating device, the delay detonating device and the baffle punching device are sequentially and fixedly connected, the gun head device is connected with a perforating gun and then goes into the bottom of a well along with an oil pipe, the ignition device independently goes into the bottom of the well through a steel wire tool, and the ignition device is fixedly clamped with the gun head device through self weight after the ignition device goes into the bottom of the well to form a pipe string structure.
The baffle punching device comprises a screw plug, a perforating bullet and a claw joint, wherein the perforating bullet is fixedly arranged in an inner cavity at the upper part of the claw joint through the screw plug, the lower part of the claw joint is of a claw structure, and when the ignition device is independently lowered into a well through a steel wire tool, the claw structure is clamped with the upper end of the gun head device.
The gun head device comprises a connecting joint, a grain, a detonating tube, a centralizing sleeve, a detonating cord, a sleeve and a gun joint, wherein a step structure matched and clamped with the claw joint is arranged on the outer wall of the connecting joint; one end of the sleeve is fixedly connected with the connecting joint in a sealing way, and the other end of the sleeve is fixedly connected with the gun joint in a sealing way.
The pressure detonating device comprises a connector, a firing pin and a detonator, wherein the connector comprises an upper connector and a lower connector, the upper connector is fixedly connected with the lower connector in a sealing way, the firing pin is fixed in the upper connector through a shearing pin, and the detonator is fixedly arranged in the lower connector.
The delay detonating device comprises a shell, wherein a delay detonating tube is arranged in the shell, and two ends of the delay detonating tube are fixed through screw plugs.
The detonating cord of the gun head device is used for detonating the perforating gun.
The grain of the gun head device is fixed in the connecting joint through the centralizing sleeve, the retaining tube and the gasket.
The upper connector is fixedly connected with the salvaging neck through threads, and the lower connector is fixedly connected with one end of the shell of the delay detonating device through threads.
The other end of the shell of the delay initiation device is fixedly connected with the upper part of the claw joint of the baffle plate punching device through threads.
The upper end of the claw structure of the claw joint is provided with a sealing baffle plate.
The invention has the advantages that:
1. by adopting the structure of the invention, the perforating gun and the ignition device can be put down in a plurality of times during operation, so that the condition that the ignition device accidentally fires and detonates the perforating gun in advance in the process of putting down the well of the traditional pipe string system can be avoided.
2. By adopting the structure of the invention, when the ignition device fails and the perforating gun cannot normally perforation, the ignition device can be salvaged by using a steel wire tool, and the whole pipe string is not required to be lifted.
3. By adopting the structure of the invention, the sealing of the tube string in the process of the separate falling of the ignition device and the gun head device can be realized through the sealing ring and the baffle plate punching device.
4. By adopting the structure, the detonator is utilized to detonate the delay detonating tube, and after the delay time is over, the perforating charges are detonated, and penetrate through the partition plate, so that the booster mode of detonating the explosive column, the booster tube, the detonating cord and the perforating charges can be effectively realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a pressure detonating device;
FIG. 3 is a schematic diagram of a time-lapse primer;
FIG. 4 is a schematic diagram of a baffle punching device;
FIG. 5 is a schematic view of a gun head apparatus;
fig. 6 is a schematic view of an ignition device.
Marked in the figure as: 1. salvage neck, 2, pressure detonating device, 3, time delay detonating device, 4, baffle punching device, 5, rifle head device, 6, upper joint, 7, firing pin, 8, sealing washer, 9, detonator, 10, lower joint, 11, plug screw, 12, time delay detonating tube, 13, casing, 14, perforating bullet, 15, claw joint, 16, connecting joint, 17, grain, 18, detonating tube, 19, centralizing sleeve, 20, detonating cord, 21, stopping tube, 22, gasket, 23, sleeve, 24, rifle joint.
Detailed Description
Example 1
The utility model provides a steel wire throws and drags for ignition system, including ignition and rifle head device 5, ignition includes standard salvage neck 1, pressure detonating device 2, delay detonating device 3 and baffle punching device 4, salvage neck 1, pressure detonating device 2, delay detonating device 3 and baffle punching device 4 fixed connection in proper order, rifle head device 5 is connected with the perforating gun and goes into the shaft bottom along with oil pipe down, ignition passes through steel wire tool and goes into alone, ignition passes through self weight and the fixed tube string structure that forms of rifle head device 5 joint after going into.
The baffle 4 device that punches a hole includes plug 11, perforating bullet 14 and jack catch joint 15, and perforating bullet 14 passes through the plug and fixedly sets up in jack catch joint 15 upper portion inner chamber, and jack catch joint 15 lower part is the jack catch structure, and ignition device passes through wire tool when the individual logging in the well, jack catch structure 15 and rifle head device 5 upper end joint.
The gun head device 5 comprises a connecting joint 16, a grain 17, a detonating tube 18, a centralizing sleeve 19, a detonating cord 20, a sleeve 23 and a gun joint 24, wherein a step structure matched and clamped with the claw joint 15 is arranged on the outer wall of the connecting joint 16, the inner cavity of the connecting joint 16 is of a blind hole structure, the grain 17 is arranged at the bottom of the blind hole and is limited and fixed through the centralizing sleeve 19, the detonating tube 18 is arranged in the centralizing sleeve 19, one end of the detonating tube 18 is in contact with the grain 17, and the detonating cord 20 is fixedly connected with the other end of the detonating tube 18; one end of the sleeve 23 is fixedly connected with the connecting joint 16 in a sealing manner, and the other end is fixedly connected with the gun joint 24 in a sealing manner.
The pressure detonating device 2 comprises a connector, a firing pin 7 and an exploder 9, wherein the connector comprises an upper connector 6 and a lower connector 10, the upper connector 6 is fixedly connected with the lower connector 10, the pressure detonating device is sealed by a sealing ring 8, the firing pin 7 is fixed in the upper connector 6 by a shearing pin, and the exploder 9 is fixedly arranged in the lower connector 10.
The delay detonation device 3 comprises a shell 13, a delay detonation tube 12 is arranged in the shell 13, and two ends of the delay detonation tube 12 are fixed through screw plugs 11.
The detonating cord 20 of the gun head device 5 is used for detonating a perforating gun.
The cartridge 17 of the gun head device 5 is fixed in the connecting joint 16 through a centralizing sleeve 19, a stop tube 21 and a gasket 22.
The upper connector 6 is fixedly connected with the salvaging neck 1 through threads, and the lower connector 10 is fixedly connected with one end of the shell 13 of the delay initiating device 3 through threads.
The other end of the shell 13 of the delay initiating device 3 is fixedly connected with the upper part of the claw joint 15 of the baffle punching device 4 through threads.
The upper end of the jaw structure of the jaw joint 15 is provided with a sealing baffle plate.
Example 2
The technical solution in this embodiment will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Referring to fig. 1 to 6, the present invention is connected to the upper end of a perforating gun for detonating the perforating gun in a tubing conveyed perforating operation. The system is divided into an ignition device and a gun head device 5. The ignition device comprises a standard fishing neck 1, a pressure detonating device 2, a delay detonating device 3 and a baffle punching device 4.
The pressure detonating device 2 comprises an upper connector 6, a firing pin 7, a sealing ring 8, an initiator 9 and a lower connector 10.
The delay detonation device 3 comprises a screw plug 11, a delay detonation tube 12 and a shell 13.
Wherein the baffle punching device 4 comprises a plug 11, a charge 14 and a claw coupling 15.
The gun head device 5 comprises a connecting joint 16, a grain 17, a detonating tube 18, a centralizing sleeve 19, a detonating cord 20, a backstop tube 21, a gasket 22, a sealing ring 8, a sleeve 23 and a gun joint 24.
In this embodiment, the standard fishing neck 1, the pressure detonating device 2, the delay detonating device 3 and the partition plate punching device 4 are connected through threads, so as to realize the tube string connection of the ignition device in this embodiment, and realize the input and output among the detonator 9, the delay detonating tube 12 and the perforating charges 14.
The baffle punching device 4 is connected with the gun head device 5 through a claw. The device is used for realizing the integral tube string connection of the embodiment and realizing the input and output among the perforating charges 14, the explosive columns 17, the detonating tubes 18 and the detonating cords 20.
The standard fishing neck 1 meets the standard size of the fishing neck and can be matched with a field steel wire tool for fishing operation.
The upper connector 6 and the lower connector 10 of the pressure detonating device 2 are connected through threads and used for fixing, righting and outputting the detonators 9, and the firing pin 7 is used for igniting after striking the detonators 9.
The screw plug 11 and the shell 13 of the delay initiating device 3 are connected through threads, and are used for fixing, righting and outputting the delay initiating tube 12. The delay time and the length of the housing 13 can be adjusted by adjusting the size of the delay detonator 12.
The plug screw 11 of the baffle plate punching device 4 is connected with the claw joint 15 through threads, and is used for fixing, righting and outputting the perforating charges 14. The claw joint 15 is provided with a baffle plate for realizing the sealing of the device in the process of well descending; the jaw joint 15 is provided with jaws for connecting the gun head device.
The connecting joint 16, the sleeve 23 and the gun joint 24 of the gun head device 5 are connected through threads, and the device is internally provided with a centralizing sleeve 19, a backstop pipe 21 and a gasket 22 for realizing the fixation, centralizing and output of the explosive column 17, the booster pipe 18 and the detonating cord 20. The connection sub 16 is provided with a partition for sealing the device during the well.
Two sealing rings 8 are used for sealing the pipe string to prevent the water from entering the device.
The working principle of the invention is as follows:
after the gun head device is connected with the perforating gun, the gun head device is lowered into the bottom of the well along with the oil pipe, the ignition device is independently lowered through the steel wire tool, and the claw at the lower end of the ignition device is clamped into the upper end of the gun head device by utilizing the self weight of the ignition device, so that the integral pipe string connection is realized. The perforating gun is detonated in a wellhead pressurizing mode, during operation, according to the well depth where the pressure detonating device 2 is located and the required detonating pressure, the detonating needle 7 is utilized to downwards move to strike the detonating device 9, detonation waves generated by the detonating device 9 are used for igniting the delay detonating tube 12 in the delay detonating device 3, a delay stage is entered, the predetermined operation can be completed during the delay period until the delay time is finished, the delay detonating device 3 detonates the perforating charges 14 in the baffle plate punching device 4 to form metal jet, the baffle plate punching device 4 and the gun head device 5 are penetrated, and the explosive column 17, the detonating tube 18 and the detonating cord 20 in the gun head device 5 are detonated, so that the perforating gun connected at the lower end of the embodiment is detonated.
Claims (8)
1. The utility model provides a steel wire throws and drags for ignition system which characterized in that: the device comprises an ignition device and a gun head device (5), wherein the ignition device comprises a salvaging neck (1), a pressure detonating device (2), a delay detonating device (3) and a baffle punching device (4), the salvaging neck (1), the pressure detonating device (2), the delay detonating device (3) and the baffle punching device (4) are sequentially and fixedly connected from top to bottom, the gun head device (5) is connected with a perforating gun and then goes down to the bottom of a well along with an oil pipe, the ignition device independently goes down through a steel wire tool, and the lower end claw of the ignition device is clamped into the upper end of the gun head device (5) by utilizing the self weight after going down to be fixedly clamped with the gun head device (5) to form a pipe string structure; when the perforating gun and the ignition device are in operation, the situation that the ignition device is accidentally ignited to detonate the perforating gun in advance is avoided, and when the perforating gun cannot normally perforate due to the failure of the ignition device, only the ignition device is salvaged by utilizing a steel wire tool, and the whole pipe string structure is not required to be started;
the baffle punching device (4) comprises a screw plug (11), a perforating bullet (14) and a jaw connector (15), wherein the perforating bullet (14) is fixedly arranged in an inner cavity at the upper part of the jaw connector (15) through the screw plug (11), the lower part of the jaw connector (15) is of a jaw structure, and when the ignition device is independently put into a well through a steel wire tool, the jaw structure is clamped with the upper end of the gun head device (5);
the gun head device (5) comprises a connecting joint (16), a grain (17), a detonating tube (18), a centralizing sleeve (19), a detonating cord (20), a sleeve (23) and a gun joint (24), wherein a step structure matched and clamped with the claw joint (15) is arranged on the outer wall of the connecting joint (16), the inner cavity of the connecting joint (16) is of a blind hole structure, the grain (17) is arranged at the bottom of the blind hole and is limited and fixed through the centralizing sleeve (19), the detonating tube (18) is arranged in the centralizing sleeve (19), one end of the detonating tube (18) is contacted with the grain (17), and the detonating cord (20) is fixedly connected with the other end of the detonating tube (18); one end of the sleeve (23) is fixedly connected with the connecting joint (16) in a sealing way, and the other end of the sleeve is fixedly connected with the gun joint (24) in a sealing way.
2. The wire cast ignition system of claim 1, wherein: the pressure detonating device (2) comprises a connector, a firing pin (7) and an exploder (9), wherein the connector comprises an upper connector (6) and a lower connector (10), the upper connector (6) and the lower connector (10) are fixedly connected in a sealing mode, the firing pin (7) is fixed in the upper connector (6) through a shearing pin, and the exploder (9) is fixedly arranged in the lower connector (10).
3. The wire-casting ignition system of claim 2, wherein: the delay detonating device (3) comprises a shell (13), a delay detonating tube (12) is arranged in the shell (13), and two ends of the delay detonating tube (12) are fixed through screw plugs (11).
4. A wire cast ignition system according to claim 3, wherein: the detonating cord (20) of the gun head device (5) is used for detonating the perforating gun.
5. The wire cast ignition system of claim 4, wherein: the grain (17) of the gun head device (5) is fixed in the connecting joint (16) through the centralizing sleeve (19), the retaining tube (21) and the gasket (22).
6. The wire cast ignition system of claim 5, wherein: the upper connector (6) is fixedly connected with the salvaging neck (1) through threads, and the lower connector (10) is fixedly connected with one end of the shell (13) of the delay initiating device (3) through threads.
7. The wire-casting ignition system of claim 6, wherein: the other end of the shell (13) of the delay detonation device (3) is fixedly connected with the upper part of the claw joint (15) of the baffle punching device (4) through threads.
8. The wire-casting ignition system of claim 7, wherein: the upper end of the claw structure of the claw joint (15) is provided with a sealing baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758725.1A CN115126451B (en) | 2022-06-30 | 2022-06-30 | Steel wire throwing and fishing ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210758725.1A CN115126451B (en) | 2022-06-30 | 2022-06-30 | Steel wire throwing and fishing ignition system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115126451A CN115126451A (en) | 2022-09-30 |
| CN115126451B true CN115126451B (en) | 2023-11-17 |
Family
ID=83382491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210758725.1A Active CN115126451B (en) | 2022-06-30 | 2022-06-30 | Steel wire throwing and fishing ignition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115126451B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566544A (en) * | 1984-10-29 | 1986-01-28 | Schlumberger Technology Corporation | Firing system for tubing conveyed perforating gun |
| CN104847316A (en) * | 2015-04-14 | 2015-08-19 | 川南航天能源科技有限公司 | Bridge plug gunpowder driving type multilevel gun perforation method |
| WO2018009223A1 (en) * | 2016-07-08 | 2018-01-11 | Halliburton Energy Services, Inc. | Downhole perforating system |
| CN109025914A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | Perforation ignition system, perforation-test-acidification axle-linked cable-car and its application method |
| CN109025915A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | A kind of full-bore under across returning combined operation of perforation and testing tubing string and its operating method |
| CN210264645U (en) * | 2019-07-05 | 2020-04-07 | 中石化石油工程技术服务有限公司 | Buffering delay tapping detonating device |
-
2022
- 2022-06-30 CN CN202210758725.1A patent/CN115126451B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566544A (en) * | 1984-10-29 | 1986-01-28 | Schlumberger Technology Corporation | Firing system for tubing conveyed perforating gun |
| CN104847316A (en) * | 2015-04-14 | 2015-08-19 | 川南航天能源科技有限公司 | Bridge plug gunpowder driving type multilevel gun perforation method |
| WO2018009223A1 (en) * | 2016-07-08 | 2018-01-11 | Halliburton Energy Services, Inc. | Downhole perforating system |
| CN109025914A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | Perforation ignition system, perforation-test-acidification axle-linked cable-car and its application method |
| CN109025915A (en) * | 2018-08-09 | 2018-12-18 | 张卫华 | A kind of full-bore under across returning combined operation of perforation and testing tubing string and its operating method |
| CN210264645U (en) * | 2019-07-05 | 2020-04-07 | 中石化石油工程技术服务有限公司 | Buffering delay tapping detonating device |
Non-Patent Citations (1)
| Title |
|---|
| SRPTCP油管传输射孔技术;苏锦广等;《油气井测试》;第13卷(第4期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN115126451A (en) | 2022-09-30 |
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