CN104847315A - Expansion composite perforating gun - Google Patents
Expansion composite perforating gun Download PDFInfo
- Publication number
- CN104847315A CN104847315A CN201510130981.6A CN201510130981A CN104847315A CN 104847315 A CN104847315 A CN 104847315A CN 201510130981 A CN201510130981 A CN 201510130981A CN 104847315 A CN104847315 A CN 104847315A
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- China
- Prior art keywords
- perforation
- gun
- dilatation
- perforating
- expansion
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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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention provides an expansion composite perforating gun, and belongs to the technical field of oilfield exploration and development. The expansion composite perforating gun eliminates serious formation contamination, improves the perfection degree of perforation and increases oil gas well capacity. According to the technical scheme, the expansion composite perforating gun is composed of a gun carrier, an inner and outer blind hole gun body, an expansion and efficacy-improving gunpowder box and a perforating bullet. The expansion and efficacy-improving gunpowder box is mounted at the front end of the perforating bullet, after a perforator detonates a penetrating hole, gunpowder is combusted, high-energy particle carrier waves and high-energy impact waves generated by the gunpowder are expanded and are used for acting on a perforated tunnel within microsecond time, the perforated tunnel is extended and expanded, and therefore the purpose of perforated tunnel expansion is achieved. The perforating depth and the pressed crack length can be beyond the range of a pollution zone, so that the penetrating quality of the immediate vicinity of a wellbore is improved, and the flow conductivity of a stratum is improved.
Description
Technical field
The invention belongs in In Oil Field Exploration And Development technical field, particularly relate to the special purpose device for perforation, dilatation, synergy in perforation completion technique--dilatation composite perforation gun.
Background technology
Perforating job is vital link in In Oil Field Exploration And Development, perforating job relies on perforating gun, the effect of perforating gun penetrates to wear down-hole and close the sleeve pipe of layer of oil gas production, cement sheath go deep into oil-gas Layer, form the fluid passage linking up pit shaft and layer of oil gas production, what commonly use in oil field is conventional jet perforating rifle, although this rifle greatly increases perforation efficiency, but the high temperature of lined-cavity charge, high pressure can extrude and form compaction band around duct, cause perforation to pollute, the serious permeance property that have impact on wellbore stratum.How in perforating process, to remove formation contaminant, improve perforation degree of perfection, increase Oil & Gas Productivity and become a problem demanding prompt solution.
Summary of the invention
The present invention be directed to a kind of dilatation composite perforation gun that the problems referred to above provide, the perforation of Oil/gas Well and stifled pressure break two operations that disappear can be combined.
The present invention is achieved through the following technical solutions: dilatation composite perforation gun is made up of firing mount, the inside and outside blind hole body of a gun, dilatation synergy medicine box, perforating bullet; Dilatation synergy medicine box is installed on perforating bullet front end, after perforation ignited by perforator, and then powder burning, the high energy particle carrier wave that dilatation gunpowder produces and high-energy shock wave, within the time of musec order, act on perforation tunnel, extend and expand perforation tunnel, and then reach the object of duct dilatation; Perforating depth and the fracture length pressed off can exceed contaminated zone scope, thus improve near wellbore zone permeance property, improve the flow conductivity on stratum; When powder burning is complete, the pressure drop in pit shaft, the liquid in press-in stratum can flow back in pit shaft, carries out the obstructions such as some rock debris simultaneously, thus reaches the effect of cleaning crack and perforation tunnel; After composite gun perforation, the heat that powder burning produces passes to formation fluid and rock by preforation tunnel crack, has dissolved paraffin, colloid, pitch and other solid precipitation things, has reduced viscosity of crude in nearly well area stratum.
Adopt the good effect of technique scheme: the high energy particle carrier wave utilizing dilatation gunpowder to produce and high-energy shock wave, perforation tunnel is acted within the time of musec order, due to effect time compole short and and by larger pressure reduction between stratum, many cracks can be formed on compaction band, thus improve the permeance property of compaction band, for the good seepage flow condition of low-permeability oil gas well manufacture, be conducive to subsequent job; For the well of heavy contamination, can penetration stain band, improve the permeance property of near wellbore zone thus improve oil gas well capacity; By the perforations adding operation to old well, the old perforation tunnel of cleaning can also be served, reaches and extend and expand perforation tunnel, reach the effect of volume increase.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: the blind hole body of a gun, 6 dilatation synergy medicine boxs, 7 perforating bullets, 8 times positioning disks inside and outside positioning disk, 2 alignment pins, 3 back-moving springs, 4 firing mounts, 5 on 1.
Specific embodiments
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in the figure, dilatation composite perforation gun is made up of upper positioning disk 1, alignment pin 2, back-moving spring 3, firing mount 4, the inside and outside blind hole body of a gun 5, dilatation synergy medicine box 6, perforating bullet 7, lower positioning disk 8; Upper positioning disk 1, lower positioning disk 8 are connected by screw with firing mount 4 respectively, dilatation synergy medicine box 6 is placed in the front end of perforating bullet 7, be fixed on the position, corresponding hole of firing mount 4, firing mount 4 is as the carrier of perforating bullet 7, not only determine the phase place of perforator, Kong Mi, also determine the shockproof reliability of perforator assembling and the stability of performance; The inside and outside blind hole body of a gun 5, as shell body, ensure that the sealing performance of rifle body.After perforation ignited by perforator, and then powder burning, the high energy particle carrier wave that dilatation gunpowder produces and high-energy shock wave, act on perforation tunnel, extend and expand perforation tunnel, and then reach the object of duct dilatation within the time of musec order; Perforating depth and the fracture length pressed off can exceed contaminated zone scope, thus improve near wellbore zone permeance property, improve the flow conductivity on stratum; When powder burning is complete, the pressure drop in pit shaft, the liquid in press-in stratum can flow back in pit shaft, carries out the obstructions such as some rock debris simultaneously, thus reaches the effect of cleaning crack and perforation tunnel; After composite gun perforation, the heat that powder burning produces passes to formation fluid and rock by preforation tunnel crack, has dissolved paraffin, colloid, pitch and other solid precipitation things, has reduced viscosity of crude in nearly well area stratum.
Claims (1)
1. a dilatation composite perforation gun, comprises firing mount (4), the inside and outside blind hole body of a gun (5), dilatation synergy medicine box (6), perforating bullet (7) formation; It is characterized in that dilatation synergy medicine box (6) is installed on perforating bullet (7) front end, after perforation ignited by perforator, and then powder burning, the high energy particle carrier wave that dilatation gunpowder produces and high-energy shock wave, perforation tunnel is acted within the time of musec order, extend and expand perforation tunnel, and then reaching the object of duct dilatation; Perforating depth and the fracture length pressed off can exceed contaminated zone scope, thus improve near wellbore zone permeance property, improve the flow conductivity on stratum; When powder burning is complete, the pressure drop in pit shaft, the liquid in press-in stratum can flow back in pit shaft, carries out the obstructions such as some rock debris simultaneously, thus reaches the effect of cleaning crack and perforation tunnel; After composite gun perforation, the heat that powder burning produces passes to formation fluid and rock by preforation tunnel crack, has dissolved paraffin, colloid, pitch and other solid precipitation things, has reduced viscosity of crude in nearly well area stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130981.6A CN104847315A (en) | 2015-03-25 | 2015-03-25 | Expansion composite perforating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130981.6A CN104847315A (en) | 2015-03-25 | 2015-03-25 | Expansion composite perforating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847315A true CN104847315A (en) | 2015-08-19 |
Family
ID=53847242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510130981.6A Pending CN104847315A (en) | 2015-03-25 | 2015-03-25 | Expansion composite perforating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847315A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567693A (en) * | 2016-10-20 | 2017-04-19 | 大庆红祥寓科技有限公司 | Inner and outer blind hole blockage relieving composite perforator |
| CN107060701A (en) * | 2017-03-22 | 2017-08-18 | 西安物华巨能爆破器材有限责任公司 | A kind of many cluster seam net perforators |
| CN107542432A (en) * | 2017-09-04 | 2018-01-05 | 大庆红祥寓科技有限公司 | Firing angle effect-increasing perforator is determined in inside and outside blind hole orientation |
| CN108518207A (en) * | 2018-03-26 | 2018-09-11 | 宝鸡石油机械有限责任公司 | It is a kind of to consider sleeve type perforating gun to be worth doing without leakage |
| CN109339750A (en) * | 2018-12-06 | 2019-02-15 | 黑龙江震泰科技有限公司 | Blind hole combustion gas synergistic perforator and its application method in a kind of convergence type |
| CN111188599A (en) * | 2020-02-22 | 2020-05-22 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
| CN112302582A (en) * | 2019-07-24 | 2021-02-02 | 陕西陕哈雷泰克新材料科技有限公司 | Interval type high-efficiency perforating device |
| CN112832721A (en) * | 2021-01-10 | 2021-05-25 | 大庆金祥寓科技有限公司 | Composite perforating process for old well reconstruction |
| CN113356822A (en) * | 2020-03-06 | 2021-09-07 | 中国石油化工股份有限公司 | Fracturing method |
| CN114963865A (en) * | 2022-04-14 | 2022-08-30 | 中国人民解放军陆军工程大学 | Capacity-increasing type artillery initial speed continuous device and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7121340B2 (en) * | 2004-04-23 | 2006-10-17 | Schlumberger Technology Corporation | Method and apparatus for reducing pressure in a perforating gun |
| CN201843593U (en) * | 2010-11-01 | 2011-05-25 | 营口市双龙射孔器材有限公司 | Multi-pulse composite perforator |
| CN102094613A (en) * | 2010-12-29 | 2011-06-15 | 西安通源石油科技股份有限公司 | Composite perforating method and device carrying support agent |
| CN203420688U (en) * | 2013-09-06 | 2014-02-05 | 中国石油天然气集团公司 | Energy-releasing composite synergetic perforator |
-
2015
- 2015-03-25 CN CN201510130981.6A patent/CN104847315A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7121340B2 (en) * | 2004-04-23 | 2006-10-17 | Schlumberger Technology Corporation | Method and apparatus for reducing pressure in a perforating gun |
| CN201843593U (en) * | 2010-11-01 | 2011-05-25 | 营口市双龙射孔器材有限公司 | Multi-pulse composite perforator |
| CN102094613A (en) * | 2010-12-29 | 2011-06-15 | 西安通源石油科技股份有限公司 | Composite perforating method and device carrying support agent |
| CN203420688U (en) * | 2013-09-06 | 2014-02-05 | 中国石油天然气集团公司 | Energy-releasing composite synergetic perforator |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567693A (en) * | 2016-10-20 | 2017-04-19 | 大庆红祥寓科技有限公司 | Inner and outer blind hole blockage relieving composite perforator |
| CN107060701A (en) * | 2017-03-22 | 2017-08-18 | 西安物华巨能爆破器材有限责任公司 | A kind of many cluster seam net perforators |
| CN107542432A (en) * | 2017-09-04 | 2018-01-05 | 大庆红祥寓科技有限公司 | Firing angle effect-increasing perforator is determined in inside and outside blind hole orientation |
| CN108518207A (en) * | 2018-03-26 | 2018-09-11 | 宝鸡石油机械有限责任公司 | It is a kind of to consider sleeve type perforating gun to be worth doing without leakage |
| CN108518207B (en) * | 2018-03-26 | 2021-01-26 | 宝鸡石油机械有限责任公司 | Sliding sleeve type perforating gun without chip leakage |
| CN109339750A (en) * | 2018-12-06 | 2019-02-15 | 黑龙江震泰科技有限公司 | Blind hole combustion gas synergistic perforator and its application method in a kind of convergence type |
| CN112302582A (en) * | 2019-07-24 | 2021-02-02 | 陕西陕哈雷泰克新材料科技有限公司 | Interval type high-efficiency perforating device |
| CN112302582B (en) * | 2019-07-24 | 2024-02-06 | 陕西陕哈应用科技有限公司 | Spacing type high-efficiency perforating device |
| CN111188599B (en) * | 2020-02-22 | 2020-09-01 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
| CN111188599A (en) * | 2020-02-22 | 2020-05-22 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
| CN113356822A (en) * | 2020-03-06 | 2021-09-07 | 中国石油化工股份有限公司 | Fracturing method |
| CN112832721A (en) * | 2021-01-10 | 2021-05-25 | 大庆金祥寓科技有限公司 | Composite perforating process for old well reconstruction |
| CN114963865A (en) * | 2022-04-14 | 2022-08-30 | 中国人民解放军陆军工程大学 | Capacity-increasing type artillery initial speed continuous device and control method |
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Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |