CN2818773Y - Multi-stage firing composite perforation and cracker - Google Patents
Multi-stage firing composite perforation and cracker Download PDFInfo
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- CN2818773Y CN2818773Y CN 200520079385 CN200520079385U CN2818773Y CN 2818773 Y CN2818773 Y CN 2818773Y CN 200520079385 CN200520079385 CN 200520079385 CN 200520079385 U CN200520079385 U CN 200520079385U CN 2818773 Y CN2818773 Y CN 2818773Y
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- gun
- perforation
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- cracking
- detonating fuse
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Abstract
The utility model relates to a composite perforation cracker implementing the multi-stage firing to an oil and gas well in oil exploitation, which comprises a firing head, primacords, a cracking gun and a composite perforating gun, wherein a center pipe is arranged in the cracking gun. The utility model is characterized in that the cracking gun has at least one knot, and the primacords have a main primacord and a branch primacord. The main primacord of the cracking gun is arranged in the inner part of the center pipe, and the branch primacord is arranged in the outer part of the center pipe and is connected with a cracking explosive column of the cracking gun. The branch primacord is connected with the main primacord through a time delay firing element. When working, a detonator detonates the main primacord and the main primacord detonates the perforating bullets of the perforating gun and fires the composite tablets to implement the composite perforation. At the same time, the main primacord also detonates the branch primacord and fires the cracking explosive column of the cracking gun through the time delay firing element to generate high voltage pulse to implement the cracking. Because the utility model is provided with the time delay firing element, the utility model can carry out the multi-stage firing control of the perforation and the cracking.
Description
Technical field
The utility model belongs to technical field of petroleum extraction, specifically a kind of composite gun perforation and fracturing device of implementing multi-stage ignition during to perforating oil gas well.
Background technology
Often adopt composite gun perforation process at present in oil-gas mining, it also impacts with high-energy fuel gas when perforation and loads the perforation tunnel, and makes nearly well rock stratum form many crackles.Existing composite gun perforation device can be divided into two big classes, one class is " integral type " composite gun perforation device, it is between the perforating bullet in perforating gun powder charge to be set, and all belongs to this type of device as Chinese patent CN93246841 disclosed " synergy perforator " and CN97242234 disclosed " the compound malleation dual-jet of oil gas well high-energy perforating system ".Such device has jet perforating and the effect of gunpowder energization near synchronous, coaxial coupling acting, but weak point is to be subjected to the restriction in space in the rifle and the qualification of perforating gun safe load, and its powder charge amount is difficult to reach the loadings of desirable acting effect usually.Another kind of is " split type " composite gun perforation device, it is the bear gun of primer in the lower end of conventional perforating gun or upper end install a joint additional, all belongs to this type of device as Chinese patent CN91111244 disclosed " compound bullet for perforation and fracturing " and CN99234368 disclosed " symmetrical expression compound bullet for perforation and fracturing ".This type of device is perforation and pressure break to be divided into two stages carry out, the bear gun that installs additional has bigger powder charge space, thereby increased the powder charge amount, but weak point is its perforating gun only is simple jet perforating and do not have the gunpowder energy increasing function, and the time difference of bear gun and perforating bullet igniting can not suitably be controlled, thereby has influenced action effect that can be flux matched.
Summary of the invention
Problem to be solved in the utility model is to overcome above-mentioned weak point of the prior art, provides a kind of and can increase the explosive payload that is used for pressure break, can carry out the composite gun perforation and the fracturing device of the multi-stage ignition of IGNITION CONTROL again to perforation, pressure break.
The technical scheme that addresses the above problem is: the composite gun perforation of the multi-stage ignition that is provided and fracturing device comprise igniter head, detonating fuse, bear gun, the composite perforation gun that is connected with bear gun, are provided with central tube in bear gun.Improvements of the present utility model are: said bear gun has a joint at least, said detonating fuse has a main detonating fuse and a detonating fuse, in the main detonating fuse centering pipe of bear gun, propping up detonating fuse is positioned at outside the central tube, and be connected with the pressure break powder column of bear gun, be connected by the delayed firing element between a detonating fuse and the main detonating fuse.During work, by the cap sensitive master detonating fuse in igniter head, main detonating fuse transmits detonation wave downwards along central tube, and ignites the perforating bullet in the composite perforation gun, and then ignites the compound medicine between perforating bullet; Meanwhile, main detonating fuse is ignited detonating fuse again, and by ignite stick in the bear gun of delayed firing element, produces high-voltage pulse and implement pressure break.Owing to be provided with the delayed firing element, can carry out multi-stage ignition control to perforation, pressure break.
Compared with prior art, the utility model can carry out different combinations with the more piece bear gun with perforating gun as required, this perforating gun with the bear gun combination has adopted the composite perforation gun that powder charge is housed, after composite perforation gun is finished perforation in advance and is made the effect that the machine of being sewed with combines, then realize the multi-stage ignition control of more piece bear gun, produce multistage gas impulse at times, make the oil reservoir of perforated interval be subjected to many ripples time refracturing, form cracky high water conservancy diversion district, near wellbore zone, thereby improve the oil gas well yield greatly.
Above-mentioned delayed firing element can adopt detonating relay.
Above-mentioned bear gun can be provided with two joints, and they are connected to the top and bottom of composite perforation gun; Bear gun also can be provided with more than two joints as required, for example, connects a joint or more piece bear gun more in the upper end of perforating gun, and the lower end connects a joint or more piece bear gun etc. more.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the partial view of bear gun among Fig. 1.
Fig. 3 is the structural representation of second embodiment of the utility model.
Fig. 4 is the structural representation of the 3rd embodiment of the utility model.
The specific embodiment
As shown in Figure 1 and Figure 2: present embodiment mainly is made of igniter head 1, a joint bear gun 2, a joint composite perforation gun 3 and gun breech 4.Bear gun 2 be positioned at perforating gun 3 above, both connect by top connection 5 and lower contact 6, igniter head 1 is connected with the upper end of bear gun 2, the lower end of perforating gun 3 is connected with gun breech.Bear gun 2 mainly by the upper end locating ring 23 and the lower end locating rings 24 of the body of a gun 21, central tube 22, central tube, be positioned at pressure break powder column 25 between central tube and body of a gun inwall, be positioned at central tube main detonating fuse 7, prop up detonating fuse 71 and delay cell 26 is formed; wherein delay cell 26 is selected commercially available detonating relay for use; and place on the detonating relay seat 27, protection tube 28 is connected between detonating relay seat 27 and the locating ring 23.The interior main detonating fuse 7 of one end of detonating fuse 71 and central tube joins, and is connected with the input of detonating relay after passing central tube.A detonating fuse of being drawn by the detonating relay output is connected like this with pressure break powder column 25: prop up detonating fuse 71 between pressure break powder column 25 and central tube 22, and extend axially to the lower end from the upper end edge of pressure break powder column.Also be provided with pressure release through hole 29 on the bear gun body of a gun 21, on pressure release through hole 29, be stamped the sealing blanking cover.The quantity of pressure release through hole and phase place determine that according to concrete needs be provided with two groups of pressure release through holes in this example, they are by 90 ° of phase arrangement.Be provided with a plurality of perforating bullets 31 by out of phase in the composite perforation gun 3, be provided with compound tablet 32 between each perforating bullet, the main detonating fuse 8 of perforating gun 3 is connected with each perforating bullet respectively, and is connected with the main detonating fuse 7 of bear gun 2 by detonating primer 9.
During perforation, by cable or oil pipe this device is sent in the well, after arriving desired location, electricity consumption or mechanical energy detonate detonator 11 in igniter head 1, ignite the main detonating fuse 7 in the bear gun 2, main detonating fuse 7 transmits detonation wave downwards along central tube on the one hand, and ignites the main detonating fuse 8 of perforating gun 3 by detonating primer 9, and then ignite perforating bullet and light compound tablet, implement composite gun perforation; Ignite a detonating fuse of junction on the other hand, the delay cell 26 in bear gun 2---after the detonating relay time-delay, ignite a detonating fuse of the pressure break powder column inwall that is laid in, and then the pressure break powder column 25 that ignites, the high-voltage pulse that the pressure break powder column produces is implemented pressure break.
As shown in Figure 2: present embodiment also is to be made of a joint composite perforation gun 3a and a joint bear gun 2a, and the structure of perforating gun 3a and bear gun 2a is identical with embodiment one, and different bear gun is positioned at below the perforating gun.
The 3rd embodiment of the present utility model as shown in Figure 3.It is made up of two joint bear gun and a joint composite perforation gun, and two joint bear gun 2b1,2b2 are connected with the upper and lower end of perforating gun 3b respectively, and the structure of perforating gun and bear gun is identical with embodiment one.Above the detonating relay delay time and following of a joint bear gun 2b1 to save the detonating relay delay time of bear gun 2b2 different, so just make behind the composite gun perforation, the high energy gas that bear gun produces forms compression wave according to setting order, time, finishes the many ripples time refracturing to perforated interval.
Claims (6)
1, a kind of composite gun perforation of multi-stage ignition and fracturing device, comprise igniter head (1), detonating fuse, bear gun, the composite perforation gun (3 that is connected with bear gun, 3a, 3b), in bear gun, be provided with central tube (22), it is characterized in that said bear gun (2,2a, 2b1,2b2) has a joint at least, said detonating fuse has main detonating fuse (7,8) and detonating fuse (71), in main detonating fuse (7) the centering pipe (22) of bear gun, propping up detonating fuse (71) is positioned at outside the central tube (22), and be connected a detonating fuse (71) and main detonating fuse (7 with the pressure break powder column (25) of bear gun,) between be connected by delayed firing element (26).
2, composite gun perforation as claimed in claim 1 and fracturing device is characterized in that said delayed firing element (26) adopts detonating relay.
3, composite gun perforation as claimed in claim 1 or 2 and fracturing device is characterized in that said bear gun (2b1,2b2) has two joints, and they are connected to the top and bottom of composite perforation gun (2a).
4, composite gun perforation as claimed in claim 1 or 2 and fracturing device, it is characterized in that a detonating fuse (71) is connected like this with pressure break powder column (25): a detonating fuse (71) is positioned between pressure break powder column (25) and the central tube (22), and extends axially to the lower end from the upper end edge of pressure break powder column (25).
5, composite gun perforation as claimed in claim 3 and fracturing device, it is characterized in that a detonating fuse (71) is connected like this with pressure break powder column (25): a detonating fuse (71) is positioned between pressure break powder column (25) and the central tube (22), and extends axially to the lower end from the upper end edge of pressure break powder column (25).
6, composite gun perforation as claimed in claim 5 and fracturing device is characterized in that the bear gun body of a gun (21) is provided with pressure release through hole (29), is stamped the sealing blanking cover on pressure release through hole (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079385 CN2818773Y (en) | 2005-09-15 | 2005-09-15 | Multi-stage firing composite perforation and cracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079385 CN2818773Y (en) | 2005-09-15 | 2005-09-15 | Multi-stage firing composite perforation and cracker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818773Y true CN2818773Y (en) | 2006-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079385 Expired - Lifetime CN2818773Y (en) | 2005-09-15 | 2005-09-15 | Multi-stage firing composite perforation and cracker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818773Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057564A1 (en) * | 2009-11-11 | 2011-05-19 | 西安通源石油科技股份有限公司 | Combined fracturing and perforating method and device for oil and gas well |
| WO2011079742A1 (en) * | 2009-12-30 | 2011-07-07 | 西安新产能石油科技有限公司 | Controllable pulse gas energy fracturing machine |
| CN103225498A (en) * | 2013-04-19 | 2013-07-31 | 中国石油天然气股份有限公司 | Multi-stage composite deep penetration perforating device |
| CN106368663A (en) * | 2016-11-17 | 2017-02-01 | 西安物华巨能爆破器材有限责任公司 | Oil-gas well high-energy gas fracturing yield increasing device |
| CN106639992A (en) * | 2017-03-10 | 2017-05-10 | 西安通源石油科技股份有限公司 | Special perforating gun for fracturing, special FracGun composite perforating device and method for fracturing |
| CN109083625A (en) * | 2018-08-09 | 2018-12-25 | 张卫华 | A kind of full-bore is across every combined operation of perforation and testing tubing string and its operating method |
-
2005
- 2005-09-15 CN CN 200520079385 patent/CN2818773Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057564A1 (en) * | 2009-11-11 | 2011-05-19 | 西安通源石油科技股份有限公司 | Combined fracturing and perforating method and device for oil and gas well |
| WO2011079742A1 (en) * | 2009-12-30 | 2011-07-07 | 西安新产能石油科技有限公司 | Controllable pulse gas energy fracturing machine |
| CN101737026B (en) * | 2009-12-30 | 2013-05-22 | 西安新产能石油科技有限公司 | Controllable pulse gas energy pressure cracking device |
| CN103225498A (en) * | 2013-04-19 | 2013-07-31 | 中国石油天然气股份有限公司 | Multi-stage composite deep penetration perforating device |
| CN103225498B (en) * | 2013-04-19 | 2015-11-18 | 中国石油天然气股份有限公司 | Multi-stage composite deep penetration perforating device |
| CN106368663A (en) * | 2016-11-17 | 2017-02-01 | 西安物华巨能爆破器材有限责任公司 | Oil-gas well high-energy gas fracturing yield increasing device |
| CN106639992A (en) * | 2017-03-10 | 2017-05-10 | 西安通源石油科技股份有限公司 | Special perforating gun for fracturing, special FracGun composite perforating device and method for fracturing |
| CN109083625A (en) * | 2018-08-09 | 2018-12-25 | 张卫华 | A kind of full-bore is across every combined operation of perforation and testing tubing string and its operating method |
| CN109083625B (en) * | 2018-08-09 | 2021-08-06 | 营口市双龙射孔器材有限公司 | Operation method of full-drift-diameter straddle perforation-testing combined operation tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN TONGYUAN PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XI AN JUHE PETROLEUM TECHN DEVELOPMENT CO., LTD. Effective date: 20070907 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070907 Address after: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee after: Xi'an Tongyuan Petrotech Co., Ltd. Address before: 710065, G006, West electronic mall, No. 18, electronic road, Shaanxi, Xi'an Patentee before: Xi'an Juhe Petroleum Techn Development Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHANG RUQING Free format text: FORMER OWNER: XI AN TONGYUAN PETROLEUM TECHNOLOGY CO., LTD. Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: The southern suburbs of Shaanxi city in Xi'an Province Ming Tak Road Xintai Park District building 22 unit 201 room, zip code: 710065 Patentee after: Zhang Ruqing Address before: High tech Zone technology two road Shaanxi city of Xi'an province No. 70 software park of Tang Lege room D301, zip code: 710075 Patentee before: Xi'an Tongyuan Petrotech Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: XI AN TONGCHUANG PETROLEUM TECHNOLOGY DEVELOPMENT Free format text: FORMER OWNER: ZHANG RUQING Effective date: 20080530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080530 Address after: Shaanxi city of Xi'an province high tech five road No. 7 big technology No. 408, zip code: 710075 Patentee after: Xi'an creation Petroleum Technology Development Co., Ltd. Address before: The southern suburbs of Shaanxi city in Xi'an Province Ming Tak Road Xintai Park District building 22 unit 201 room, zip code: 710065 Patentee before: Zhang Ruqing |
|
| CX01 | Expiry of patent term |
Granted publication date: 20060920 |
|
| EXPY | Termination of patent right or utility model |