CN2630492Y - Perforation-strong overpressure balance symmetric fracturing device - Google Patents
Perforation-strong overpressure balance symmetric fracturing device Download PDFInfo
- Publication number
- CN2630492Y CN2630492Y CN 03264525 CN03264525U CN2630492Y CN 2630492 Y CN2630492 Y CN 2630492Y CN 03264525 CN03264525 CN 03264525 CN 03264525 U CN03264525 U CN 03264525U CN 2630492 Y CN2630492 Y CN 2630492Y
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- fracturing
- perforation
- perforating gun
- strong
- symmetric
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- 239000003814 drug Substances 0.000 claims description 15
- 238000005474 detonation Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000009530 blood pressure measurement Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000004880 explosion Methods 0.000 claims description 6
- 238000009527 percussion Methods 0.000 claims 3
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract 2
- 238000004200 deflagration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 5
- 239000003999 initiator Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- Disintegrating Or Milling (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A perforation-strong overpressure balance symmetric fracturing device used in oil exploitation comprises a booster 3, fracturing chemicals 4, a bearing fire transfer pipe 5, a deflagration adapter 7, a perforating gun 8 and the like, wherein the booster 3 and an auxiliary igniter 6 are arranged in the bearing fire transfer pipe 5, the fracturing chemicals 4 are arranged outside the bearing fire transfer pipe 5, a pressure measuring tail plug 9 is also arranged at the lower part of the device, the perforating gun 8 is vertically and symmetrically connected with the strong overpressure balance symmetric fracturing device, high-temperature and high-pressure gas is simultaneously generated vertically and horizontally due to the fact that the strong overpressure balance symmetric fracturing device is adopted vertically on the perforating gun, air is symmetrically balanced and released, the cracking speed of a stratum is improved, the energy utilization rate is improved, a long multi-fracture system can be formed, and the probability of communicating a far-well diameter oil layer is greatly improved.
Description
Relate to the field
A kind of perforation-strong superpressure balanced, symmetrical fracturing device that is used for oil exploitation.
Background technology
Perforating technology occupies considerable status in oilfield exploitation.Therefore, the research of perforating technology is that oilfield engineering circle is extremely paid close attention to and very important problem.In recent years, the achievement in research of compound technique of perforating is exactly a best illustration, from present mode of occupation, use more mainly containing, perforation-high enegry gas fracturing connection is made technology, the deep penetration compound technique of perforating, and combustion type ultra-positive pressure perforating technology etc., its form of structure is mainly three kinds, and the one, split is packaging, the 2nd, mix packaging, the 3rd, load packaging.Its design feature is respectively: perforating gun connects high energy gas fracturing device down, and its effect characteristics are pressure breaks behind the first perforation, to longer perforated interval, are difficult to the upper strata is produced effective fracturing effect; The deep penetration compound technique of perforating is that the medicine core is embedded in the firing mount, and its effect characteristics are pressure break behind the first perforation substantially, and can effectively strengthen and deepen the preforation tunnel passage, and shortcoming is that explosive payload is little; Combustion type ultra-positive pressure perforating technology is to have utilized ultra-positive pressure perforating technology principle, be characterized in before perforation, applying strong higher-pressure region at the perforated hole interval earlier, carry out perforation then, be characterized in perforation after the first pressure break, effectively improve perforation and wear dark ability, but it is limited that shortcoming is an explosive payload, is difficult to produce than long crack on the stratum.Its common drawback is that all ubiquity is lower to the energy effective utilization rate of formation breakdown effect, and energy loss is bigger etc., is difficult to produce than long crack on the stratum.
Technology contents
The purpose of this utility model is to provide a kind of increasing to act on stratum energy more than one times, improved the energy effective utilization rate on effect stratum, reduced the loss of energy, help producing and form long multiple cracking system, and can be at the perforation of the multistage use of oil well multilayer---strong superpressure balanced, symmetrical fracturing device.
The utility model is achieved in that and comprises, copper crusher 10 stifled 9 by bump (pressure) initiator 1, baffle ring 2, propagation of explosion device 3, pressure break medicine 4, carrying igniting primer 5, auxiliary igniter 6, detonation crossover sub 7, perforating gun 8, pressure measurement tail, perforating gun is this device of symmetry connection about in the of 8, perforating gun 8 is installed between the detonation crossover sub 7, top at device is provided with bump (pressure) initiator 1, carrying igniting primer 5 is built-in with propagation of explosion device 3 and auxiliary igniter 6, pressure break medicine 4 is equipped with in the outside of carrying igniting primer 5, and pressure measurement tail stifled 9 also is housed in the bottom of this device.
The utility model also adopts following technical scheme:
Between pressure break medicine 4 and bump (pressure) initiator 1, between pressure break medicine 4 and the detonation crossover sub 7 baffle ring 2 is arranged.
In the pressure measurement tail stifled 9 copper crusher 10 is housed.
Advantage of the present utility model is: because perforating gun adopts strong superpressure balanced, symmetrical fracturing device up and down, produce high temperature and high pressure gas up and down simultaneously, symmetrical balance loses heart, at first force promotion liquid as " chock " pressure break stratum, and a large amount of gas advance the concentration of energy effect fast, improved the crack velocity on stratum, improve capacity usage ratio, can form long multiple cracking system, improved the probability of linking up hole diameter oil reservoir far away greatly.Because general high energy gas and perforation connection are done at afterbody, high temperature and high pressure gas advances to press on the retaining fluid column and moves, and lost most of energy, and the effect stratum energy is limited, and this device has reduced the loss of gas energy, improves stratum composite fracturing effect.Another advantage is to can be used for the multilayer oil reservoir to improve multistage use.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Specific embodiment
1 pair of the utility model is further described in conjunction with the accompanying drawings.
The utility model is stifled 9 by bump (pressure) initiator 1, baffle ring 2, propagation of explosion device 3, carrying igniting primer 5, auxiliary igniter 6, detonation crossover sub 7, perforating gun 8, pressure measurement tail, copper crusher 10 is formed, perforating gun 8 includes perforating bullet, detonating fuse firing mount etc., perforating gun about in the of 8 symmetry connect strong superpressure balanced, symmetrical fracturing device, this device is mainly by pressure break medicine 4, auxiliary igniter 6, shelves ring 2, carrying igniting primer 5 and detonation conversion equipment 7 are formed.Initiation process is ignited by bump (pressure) initiator 1, at first ignite perforating gun 8 by propagation of explosion device 3, immediately by detonation crossover sub 7 symmetrical point of ignition firearm 6 simultaneously, and then the pressure break medicine 4 that ignites, the pressure break medicine can be used compositions such as double-base powder, propellant, compound medicine, can adorn two copper crushers 10 in the pressure measurement tail stifled 9, measure surge pressure, reach the stratum balanced, symmetrical pressure break that the centre is just penetrated out, produce long multiple cracking to impel the stratum, improve in-place permeability, increase oil and gas production.Its action principle is behind the perforating gun perforation, and it connects symmetrical high-energy gas generator device up and down and is ignited simultaneously, and perforating gun produces a large amount of high pressure-temperature gases up and down simultaneously, and symmetrical balance loses heart, and clamp-ons the stratum simultaneously.At first compression is positioned at the hydraulic fluid of perforated zone, suppress and impel hydraulic fluid to clamp-on the stratum along the preforation tunnel of just penetrating out, because liquid is compressible hardly, form one " chock " and be pressed into the stratum, more help the stratum crack initiation and form the crack: a large amount of gases at high pressure in two ends clamp-on propelling fast, improved the crack velocity on stratum, made the stratum produce long crack system fast.
Claims (4)
1. perforation-strong superpressure balanced, symmetrical fracturing device, comprise by percussion primer (1), baffle ring (2), propagation of explosion device (3), pressure break medicine (4), carrying igniting primer (5), auxiliary igniter (6), detonation crossover sub (7), perforating gun (8), the pressure measurement tail blocks up (9), copper crusher (10), it is characterized in that: on the perforating gun (8), following symmetry connects this device, perforating gun (8) is installed between the detonation crossover sub (7), top at device is provided with percussion primer (1), carrying igniting primer (5) is built-in with propagation of explosion device (3) and auxiliary igniter (6), pressure break medicine (4) is equipped with in the outside of carrying igniting primer (5), and pressure measurement tail stifled (9) also is housed in the bottom of this device.
2. perforation according to claim 1-strong superpressure balanced, symmetrical fracturing device is characterized in that: between pressure break medicine (4) and the percussion primer (1), between pressure break medicine (4) and the detonation crossover sub (7) baffle ring (2) is arranged.
3. perforation according to claim 1-strong superpressure balanced, symmetrical fracturing device is characterized in that: the pressure measurement tail is equipped with copper crusher (10) in stifled (9).
4. perforation according to claim 1-strong superpressure balanced, symmetrical fracturing device, it is characterized in that: copper crusher (10) can be more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264525 CN2630492Y (en) | 2003-06-18 | 2003-06-18 | Perforation-strong overpressure balance symmetric fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264525 CN2630492Y (en) | 2003-06-18 | 2003-06-18 | Perforation-strong overpressure balance symmetric fracturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630492Y true CN2630492Y (en) | 2004-08-04 |
Family
ID=34297347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264525 Expired - Fee Related CN2630492Y (en) | 2003-06-18 | 2003-06-18 | Perforation-strong overpressure balance symmetric fracturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630492Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337878A (en) * | 2011-10-16 | 2012-02-01 | 北方斯伦贝谢油田技术（西安）有限公司 | Thermal-ignition high-energy gas pulse fracturing device |
| CN101619654B (en) * | 2009-07-27 | 2012-06-20 | 北方斯伦贝谢油田技术（西安）有限公司 | Pulse fracturing sand injector for horizontal wells |
| CN101737027B (en) * | 2009-11-25 | 2013-04-03 | 西安石油大学 | High energy gas fracturing device of oil reservoirs of horizontal well |
| CN102052066B (en) * | 2009-11-11 | 2014-03-19 | 西安通源石油科技股份有限公司 | Dynamic seal pressing method and device for improving complex perforation pressing crack effect |
| CN104265251A (en) * | 2014-09-17 | 2015-01-07 | 中国海洋石油总公司 | Nitrogen making induced flow device |
| CN109098695A (en) * | 2018-08-02 | 2018-12-28 | 中国地质大学（武汉） | A kind of perforating and fracturing integrated apparatus and method based on carbon dioxide blasting technique |
-
2003
- 2003-06-18 CN CN 03264525 patent/CN2630492Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619654B (en) * | 2009-07-27 | 2012-06-20 | 北方斯伦贝谢油田技术（西安）有限公司 | Pulse fracturing sand injector for horizontal wells |
| CN102052066B (en) * | 2009-11-11 | 2014-03-19 | 西安通源石油科技股份有限公司 | Dynamic seal pressing method and device for improving complex perforation pressing crack effect |
| CN101737027B (en) * | 2009-11-25 | 2013-04-03 | 西安石油大学 | High energy gas fracturing device of oil reservoirs of horizontal well |
| CN102337878A (en) * | 2011-10-16 | 2012-02-01 | 北方斯伦贝谢油田技术（西安）有限公司 | Thermal-ignition high-energy gas pulse fracturing device |
| CN104265251A (en) * | 2014-09-17 | 2015-01-07 | 中国海洋石油总公司 | Nitrogen making induced flow device |
| CN109098695A (en) * | 2018-08-02 | 2018-12-28 | 中国地质大学（武汉） | A kind of perforating and fracturing integrated apparatus and method based on carbon dioxide blasting technique |
| CN109098695B (en) * | 2018-08-02 | 2019-09-17 | 中国地质大学（武汉） | A kind of perforating and fracturing integrated apparatus and method based on carbon dioxide blasting technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |