CN106761598B - A kind of method of ignition reducing perforation charge interference - Google Patents
A kind of method of ignition reducing perforation charge interference Download PDFInfo
- Publication number
- CN106761598B CN106761598B CN201611157633.9A CN201611157633A CN106761598B CN 106761598 B CN106761598 B CN 106761598B CN 201611157633 A CN201611157633 A CN 201611157633A CN 106761598 B CN106761598 B CN 106761598B
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- Prior art keywords
- bullet
- perforating
- perforating bullet
- string
- strings
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Classifications
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- 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
Abstract
The invention discloses it is a kind of reduce perforation charge interference the method for ignition, this method in perforating bullet blast process, be arranged three independent perforating bullet strings, every a string by outside one high explosion velocity primacord around.For every a string of perforating bullets, bullet spacing is 77.9mm.No. 1 perforating bullet string it is quick-fried after, 20 μ s and 40 μ s delayed ignitions are respectively set in No. 2 perforating bullet strings and No. 3 perforating bullet strings.No. 1 perforating bullet string it is quick-fried after, number is that shock wave caused by perforating bullet 1. explodes can be loaded into number adjacent thereto and be 2., 3. and 4. on perforating bullet, 1. and 4. between distance be 77.9mm, 2. and 3. do not detonate at this time.Distance between bullet is effectively increased in this way, avoids the interference between two nearest bullets, mainly first influence of the quick-fried bullet to rear quick-fried bullet.And then achieve the purpose that the interference effect of shock wave between reduction bullet, increase perforation circular hole rate while increasing perforating depth, improves production capacity.
Description
Technical field
The invention belongs between perforating bullet in the close petroleum perforation field of operation in high hole more particularly to a kind of reduction petroleum oil perforation gun
Impact the method for ignition of wave interference.
Background technique
In the exploration and development of petroleum, perforating job has very important effect, and the superiority and inferiority of quality directly influences
The economic life of oil well and production capacity, or even can feed through to whether entire oily area can reasonably develop.Perforation is that cumulative is penetrated
The a certain interval of oil reservoir is arrived under the device of hole, is opened between casing, cement sheath and stratum and is flowed oily channel.In middle-low permeability, mesolow
Power and the complicated reservoir of loose cementation, high hole dense perforation increase production capacity, can also reduce to increase the seepage area of crude oil
The drag force of crude oil flow velocity and reduction to sand grains, stable yields sand control.The high close deep penetration in hole or the close big-role perforator in high hole are in reality
It is found in the properties of product detection of concrete target simulation dress rifle, does not reach expected penetration depth index, especially work as hole
It is close to wear deep index and obviously fluctuate when being more than every meter 30 hair, and most data punctureds are remarkably decreased.Main cause is petroleum perforation
It plays detonation and causes interfering with each other and being superimposed for shock wave.Cao Yuxin etc. analyzes the reason of causing charge interference, proposes that filling is soft
Property material inhibit perforation charge interference method and done field test (Cao Yuxin, Xu Rui, Liu Zhilong etc., filling flexible material
Inhibit the method for perforation charge interference, " logging technique ", 2008,32 (2): 123-127), Dong Yongjun etc. points out Dagang Oilfield
The serial high shot density perforator that Logging Company develops is promoted in associated oil field, proposes to redesign perforating bullet and its in rifle
Cloth bullet mode (Dong Yongjun, Han Cheng, Zhang Weishan etc., Effect of High-Density Perforating Technology research and application, " Current Foreign Well Logging Technology ", 2007,22
(5):49-53)；Dong Qing proposes to be reduced charge interference using the firing mount and guided missile for having damping and improved and be worn deep index
(Dong Qing, the analysis of charge interference Producing reason and solution route are inquired into, " science and technology and enterprise ": 228)；Cao Lina etc. penetrates petroleum
Hole rifle charge interference has carried out finite element analysis (Cao Lina, Han Xiuqing, Zhang Yongguang, detonation wave between Cao Yuxin petroleum perforation bullet
The simulation analysis of interference, petroleum machinery, 2010,38 (6): 1-4, lower turn 29；Cao Lina, Han Xiuqing, Zhang Yongguang, Cao Yuxin are penetrated
The finite element analysis interfered between the bullet detonation wave of hole, " explosion and impact " (EI searching number: 20112914155474) 2011,31 (2),
220-224)；Liu Fan etc. has studied factor (Liu Fan, Cao Li Na, Zou's Yi, the Cao Yu for causing charge interference based on finite element method
Glad, the clear of Han Xiu is studied based on the petroleum oil perforation gun charge interference of FInite Element；" engineering explosion " 2013,19 (3), 6-9).More than
There is certain feasibility in practical applications about the method for reducing charge interference.But it does not mention and improves the method for ignition to reduce
It is interfered with each other between bullet.
Summary of the invention
The object of the present invention is to provide a kind of method for reducing the interference between adjacent two launch holes bullet, this method will originally with
Sequentially it is outer around the primacord that winds of mode reset detonation order.It is such for 102 40 holes of type/rice perforating gun
Arrangement makes a string of proper detonations of three string perforating bullets, and in addition two string installation delayed ignition devices, is equivalent to and independently detonates, increase
Bullet spacing is added, charge interference can be greatly lowered.
The method of the present invention is three independent perforating bullet strings to be arranged, every a string by one in perforating bullet blast process
High explosion velocity primacord it is outer around.For every a string of perforating bullets, playing spacing by original 68.3mm increases to 77.9mm.No. 1 perforating bullet
1. 4. 7. 10. string is by numbering(with length on the firing mount of 400mm, 40 holes Kong Miwei/rice, phase is 135 ° and shoots
For) perforating bullet composition, 2. 5. 8. No. 2 perforating bullet strings are by numberingPerforating bullet composition, No. 3 perforating bullet strings by
3. 6. 9. number isPerforating bullet composition.No. 1 perforating bullet string it is quick-fried after, No. 2 perforating bullet strings and No. 3 perforating bullet strings
20 μ s and 40 μ s delayed ignitions are respectively set.The interference between two nearest bullets can be effectively avoided in this way, mainly
First influence of the quick-fried bullet to rear quick-fried bullet, such as number are influence of the perforating bullet to 3. perforating bullet perforation is numbered 1..
The beneficial effects of the present invention are:
1, the method for ignition of the reduction charge interference of the present invention need to only install two time-delay mechanisms, and set the time.Often
The primacord canoe of one perforating bullet string can be used outer around winding technology maturation is simple and easy.
2, this method of ignition increases distance between adjacent two bullet under the premise of not reducing Kong Mi to the maximum extent,
And then the interference effect of shock wave between bullet is eliminated or reduces, increase perforation circular hole rate while increasing perforating depth, improves production capacity.
3, it is 40 holes/rice that the present invention is just for 102 type holes close, phase is 135 ° and shoots situation, for different gun shaped,
Kong Mi and phase is shot, perforating bullet string number and delay time can be reset by calculating.
Detailed description of the invention:
Fig. 1 is 400mm firing mount expanded view of the present invention.
Specific embodiment
Referring to Fig. 1, the present invention be in perforating bullet blast process, will originally a primacord it is sequentially outer each around series connection
Bullet, is arranged to three independent perforating bullet strings, each perforating bullet string by outside one high explosion velocity primacord around.Every a string are penetrated
Hole bullet, playing spacing by original 68.3mm increases to 77.9mm.1. 4. 7. 10. No. 1 perforating bullet string is by numberingPerforation
2. 5. 8. bullet composition, No. 2 perforating bullet strings are by numberingPerforating bullet composition, 3. 6. 9. No. 3 perforating bullet strings are by numberingPerforating bullet composition.20 μ s and 40 μ s delayed ignitions are respectively set in No. 2 perforating bullet strings and No. 3 perforating bullet strings.At No. 1
Perforating bullet string it is quick-fried after, number be shock wave caused by perforating bullet 1. explodes can be loaded into number adjacent thereto be 2.,
4. 3. on perforating bullet, 1. and 4. between distance be 77.9mm, 2. and 3. do not detonate at this time.After 20 μ s, No. 1 perforating bullet string
The detonation of 7. number perforating bullet when, the number of No. 2 perforating bullet strings is that perforating bullet 2. starts to detonate, and is at this time perforation 1. by numbering
Bullet explode caused by the pressure of shock wave decayed to very little, substantially will not be that perforating bullet 2. has an impact to number；
When 40 μ s, No. 1 perforating bullet stringThe detonation of number perforating bullet, No. 2 perforating bullet strings number when being that perforating bullet 8. starts detonation, 3
The number of number perforating bullet string is 3. to start to detonate.Distance between bullet is effectively increased in this way, is avoided between two nearest bullets
Interference, the mainly first influence of quick-fried bullet to rear quick-fried bullet.And then achieve the purpose that the interference effect of shock wave between reduction bullet, increase
Increase perforation circular hole rate while perforating depth, improves production capacity.
The present embodiment is close just for 102 type holes is 40 holes/rice, phase is 135 ° and shoots situation, for different gun shaped,
Kong Mi and phase is shot, perforating bullet string number and delay time can be reset by calculating with the method according to the invention.
Claims (1)
1. it is a kind of reduce perforation charge interference the method for ignition, the method being somebody's turn to do is: for 102 type perforating guns, 40 hole Kong Miwei/
Rice, phase are 135 ° and shoot situation, in perforating bullet blast process, three independent perforating bullet strings are arranged, every a string by one
The high explosion velocity primacord of item it is outer around；For every a string of perforating bullets, bullet spacing is 77.9mm；1. 4. 7. No. 1 perforating bullet string is by numbering
⑩Perforating bullet composition, 2. 5. 8. No. 2 perforating bullet strings are by numberingPerforating bullet composition, No. 3 perforating bullet strings by
3. 6. 9. number isPerforating bullet composition；No. 1 perforating bullet string it is quick-fried after, No. 2 perforating bullet strings and No. 3 perforating bullet strings
20 μ s and 40 μ s delayed ignitions are respectively set, the interference between two nearest bullets can be effectively avoided in this way, mainly
It is effectively prevented from first influence of the quick-fried bullet to rear quick-fried bullet；
It is described No. 1 perforating bullet string it is quick-fried after, 20 μ s and 40 μ s delay is respectively set in No. 2 perforating bullet strings and No. 3 perforating bullet strings
The specific order of detonation is:
No. 1 perforating bullet string it is quick-fried after, it is adjacent thereto that number is that shock wave caused by perforating bullet 1. explodes can be loaded into
Number is 2., 3. and 4. on perforating bullet, 1. and 4. between distance be 77.9mm, 2. and 3. do not detonate at this time；After 20 μ s, 1
When the 7. number perforating bullet detonation of number perforating bullet string, the number of No. 2 perforating bullet strings is that perforating bullet 2. starts to detonate, at this time by numbering
Very little has been decayed to for the pressure of shock wave caused by perforating bullet explosion 1., substantially will not be perforating bullet 2. to number
It has an impact；When 40 μ s, No. 1 perforating bullet stringThe detonation of number perforating bullet, No. 2 perforating bullet strings number be that perforating bullet 8. starts
When detonation, the number of No. 3 perforating bullet strings is 3. to start to detonate；Increase distance between bullet in this way, avoid at a distance of two nearest bullets it
Between interference, mainly avoid the first influence of quick-fried bullet to rear quick-fried bullet, so reach reduce bullet between shock wave interference effect mesh
, increase perforation circular hole rate while increasing perforating depth, improves production capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157633.9A CN106761598B (en) | 2016-12-15 | 2016-12-15 | A kind of method of ignition reducing perforation charge interference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157633.9A CN106761598B (en) | 2016-12-15 | 2016-12-15 | A kind of method of ignition reducing perforation charge interference |
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| CN106761598A CN106761598A (en) | 2017-05-31 |
| CN106761598B true CN106761598B (en) | 2018-12-25 |
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| CN110630225A (en) * | 2019-09-26 | 2019-12-31 | 中国石油天然气集团有限公司 | Same-layer meshing perforation method and device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3375785A (en) * | 1966-07-29 | 1968-04-02 | Lawrence K. Moore | Wire-line actuated time-delay detonator apparatus |
| EP0129350A2 (en) * | 1983-06-20 | 1984-12-27 | Geo Vann, Inc. | Method and apparatus for detecting firing of perforating gun |
| EP0415770A2 (en) * | 1989-09-01 | 1991-03-06 | Halliburton Company | Well perforating apparatus and firing head |
| CN1737329A (en) * | 2005-09-12 | 2006-02-22 | 长春工业大学 | Petroleum oil perforation gun |
| CN101454635A (en) * | 2006-12-21 | 2009-06-10 | 普拉德研究及开发股份有限公司 | Process for assembling a loading tube |
| CN101466994A (en) * | 2006-04-17 | 2009-06-24 | 欧文石油工具有限合伙公司 | High density perforating gun system producing reduced debris |
| CN202148887U (en) * | 2011-07-12 | 2012-02-22 | 北方斯伦贝谢油田技术（西安）有限公司 | Modular propellant charge used on perforating charge frame |
| CN103670346A (en) * | 2013-11-29 | 2014-03-26 | 营口市双龙射孔器材有限公司 | Oil-gas well focusing perforation delayed detonation technology |
| CN204212750U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | The time delay of perforation propagation of explosion continues quick-fried device |
-
2016
- 2016-12-15 CN CN201611157633.9A patent/CN106761598B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3375785A (en) * | 1966-07-29 | 1968-04-02 | Lawrence K. Moore | Wire-line actuated time-delay detonator apparatus |
| EP0129350A2 (en) * | 1983-06-20 | 1984-12-27 | Geo Vann, Inc. | Method and apparatus for detecting firing of perforating gun |
| EP0415770A2 (en) * | 1989-09-01 | 1991-03-06 | Halliburton Company | Well perforating apparatus and firing head |
| CN1737329A (en) * | 2005-09-12 | 2006-02-22 | 长春工业大学 | Petroleum oil perforation gun |
| CN101466994A (en) * | 2006-04-17 | 2009-06-24 | 欧文石油工具有限合伙公司 | High density perforating gun system producing reduced debris |
| CN101454635A (en) * | 2006-12-21 | 2009-06-10 | 普拉德研究及开发股份有限公司 | Process for assembling a loading tube |
| CN202148887U (en) * | 2011-07-12 | 2012-02-22 | 北方斯伦贝谢油田技术（西安）有限公司 | Modular propellant charge used on perforating charge frame |
| CN103670346A (en) * | 2013-11-29 | 2014-03-26 | 营口市双龙射孔器材有限公司 | Oil-gas well focusing perforation delayed detonation technology |
| CN204212750U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | The time delay of perforation propagation of explosion continues quick-fried device |
Non-Patent Citations (1)
| Title |
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| 超高孔密射孔器的研制及应用;朱建新;《机械管理开发》;20150630;第30卷(第4期);全文 * |
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