CN202391399U - Inner blind hole composite perforator - Google Patents
Inner blind hole composite perforator Download PDFInfo
- Publication number
- CN202391399U CN202391399U CN 201120533902 CN201120533902U CN202391399U CN 202391399 U CN202391399 U CN 202391399U CN 201120533902 CN201120533902 CN 201120533902 CN 201120533902 U CN201120533902 U CN 201120533902U CN 202391399 U CN202391399 U CN 202391399U
- Authority
- CN
- China
- Prior art keywords
- blind hole
- composite perforator
- interior
- gun
- burst
- 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.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000005474 detonation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- 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)
- Nozzles (AREA)
- Earth Drilling (AREA)
Abstract
The utility model relates to an oil gas well inner blind hole composite perforator capable of improving penetration of an oil layer in perforating operation. An inner wall of a gun body is provided with an inner blind hole corresponding to an opening end of a perforating bullet; the inner blind hole can be a ladder-shaped cylindrical surface or a round platform surface; the bottom surface of the inner blind hole can be a conical surface or a plane, or the inner blind hole is an inner conical surface. The inner blind hole increases the height of burst of the perforating bullet, and the penetration of the perforator in the ground layer is increased.
Description
Technical field
The utility model belongs to oil exploration and development fields, especially relates to a kind of interior blind hole composite perforator.
Background technology
In oil gas well exploration and development field; Composite gun perforation is widely used in the completion engineering as a kind of effective perforation raising the output method; Wear on the dark basis in formation after the perforating bullet detonation,, the duct is impacted in conjunction with the second energy of High-Energy Gas Fracturing Technology; The influence of decompaction band also produces many microcracks to stratum effect, and fracture propagation is extended.Often only in the outer blind hole of perforating gun outer wall processing, with local reduction's perforating gun wall thickness, minimizing is to the loss of perforation ejection stream for conventional composite perforator; Yet receive the restriction of perforating gun external diameter; The height of burst of perforating bullet in the body of a gun is generally on the low side, and much smaller than the desirable height of burst, the energy-gathering jetting that causes producing after the perforating bullet detonation meets with obstruction prematurely; Perforating bullet cumulative effect and energy performance are insufficient, thereby have reduced the penetration depth of perforator.It is worn deeply in order to pursue perforation again, in most cases all can adopt the way of big bullet dress lancet, and the actual height of burst of big perforating bullet in the body of a gun has a greatly reduced quality actual the wearing deeply of perforating bullet with regard to the farther desirable height of burst less than this bullet.The perforating bullet height of burst is with to wear dark relation as shown in Figure 1, and when the height of burst during less than the desirable height of burst, increasing the height of burst can wear by linear increase perforation deeply.Therefore, though the perforating bullet size of existing composite perforator has increased,, can not reach preferably perforation and wear dark effect because the actual height of burst is limited.
Summary of the invention
The utility model problem to be solved is: provide a kind of oil reservoir that can improve in the perforating job to wear dark interior blind hole composite perforator.
The thinking that addresses the above problem is: according to the perforating bullet detonation theory, when the perforating bullet height of burst during less than the desirable height of burst, increasing the height of burst can significantly increase perforation and wear deeply.For this reason, can on the body of a gun inwall of composite perforator, with the corresponding position of perforating bullet openend interior blind hole be set, interior blind hole has increased the height of burst of perforating bullet, just can realize increasing perforation and wear dark purpose.
The technical scheme that addresses the above problem is: the interior blind hole composite perforator that is provided, comprise the body of a gun, and body of a gun inwall is provided with and the corresponding interior blind hole of perforating bullet openend.
Interior blind hole can be multiple shape, and for example: interior blind hole is an internal conical surface; The inner peripheral surface of interior blind hole can be the stairstepping face of cylinder or round table surface, and the bottom surface of interior blind hole can be taper seat or plane.
Interior blind hole also can adopt and on the body of a gun of composite perforator, drill through the hole earlier, and the method that blanking cover is installed on this through hole then forms, that is: interior blind hole is made up of ladder hole on the body of a gun and blanking cover, and blanking cover is encapsulated on the step of ladder hole.
The mode that the utility model adopt to increase the perforating bullet height of burst increases wears deeply after the perforating bullet detonation, and its effect of not only simple possible, and evidence also relatively significantly.
Description of drawings
Fig. 1 is the perforating bullet height of burst and wears dark graph of relation.
Fig. 2 is the structure chart of the utility model first embodiment.
Fig. 3 is the structure chart of the utility model second embodiment.
Fig. 4 is the structure chart of the utility model the 3rd embodiment.
Fig. 5 is the structure chart of the utility model the 4th embodiment.
Fig. 6 is the structure chart of the utility model the 5th embodiment.
Fig. 7 is the structure chart of the utility model the 6th embodiment.
Fig. 8 is the structure chart of the utility model the 7th embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the content of the utility model is described in detail.
As shown in Figure 1, H representes the height of burst among the figure, and L representes to wear deeply, when the height of burst of perforating bullet during less than desirable height of burst h, wears deeply increase with the height of burst and is linear and increases.
Fig. 2 has provided first embodiment of the utility model; Blind hole 11 or interior blind hole 12 on the body of a gun 1 inwall, being provided with, the inner peripheral surface of interior blind hole is the stairstepping face of cylinder, interior blind hole bottom surface is plane or taper seat; That is: the bottom surface of interior blind hole 11 is the plane, and the bottom surface of interior blind hole 12 is a taper seat.Adopt the interior blind hole of stairstepping both can increase the height of burst to greatest extent, can guarantee the intensity of the body of a gun again.
Fig. 3 has provided second embodiment of the utility model, and interior blind hole 13 is internal conical surfaces.
Fig. 4 has provided the 3rd embodiment of the utility model, and the inner peripheral surface of interior blind hole 14 is the face of cylinder, and interior blind hole bottom surface is a taper seat.
Fig. 5 has provided the 4th embodiment of the utility model, and the inner peripheral surface of interior blind hole 15 is a round table surface, and interior blind hole bottom surface is the plane.
Fig. 6 has provided the 5th embodiment of the utility model, and the inner peripheral surface of interior blind hole 16 is a round table surface, and interior blind hole bottom surface is a taper seat.
Fig. 7 has provided the 6th embodiment of the utility model; Interior blind hole is made up of ladder hole on the body of a gun 17 and blanking cover 171; The outside of blanking cover 171 is provided with fluid sealant 172, and fluid sealant 172 can be encapsulated in blanking cover 171 on the step of ladder hole 17, and the bottom surface of blanking cover 171 is the plane.
Fig. 8 has provided the 7th embodiment of the utility model, and the formation of interior blind hole and embodiment six phase also are made up of ladder hole on the body of a gun 18 and blanking cover 181 together, and the bottom surface of blanking cover 181 is interior concave spherical surface.
The interior blind hole of the utility model also can adopt non-round blind hole, prismatic hole, interior pyramid hole etc. in for example can adopting, and promptly the crosscut profile of interior blind hole is a regular polygon.
Claims (9)
1. blind hole composite perforator in a kind comprises the body of a gun, it is characterized in that body of a gun inwall is provided with and the perforating bullet openend corresponding in blind hole.
2. composite perforator according to claim 1, the inner peripheral surface of blind hole is the stairstepping face of cylinder in it is characterized in that, interior blind hole bottom surface is plane or taper seat.
3. composite perforator according to claim 1, blind hole is an internal conical surface in it is characterized in that.
4. composite perforator according to claim 1, the inner peripheral surface of blind hole is the face of cylinder in it is characterized in that, interior blind hole bottom surface is a taper seat.
5. composite perforator according to claim 1, the inner peripheral surface of blind hole is a round table surface in it is characterized in that, interior blind hole bottom surface is the plane.
6. composite perforator according to claim 1, the inner peripheral surface of blind hole is a round table surface in it is characterized in that, interior blind hole bottom surface is a taper seat.
7. composite perforator according to claim 1, blind hole is made up of ladder hole on the body of a gun and blanking cover in it is characterized in that, and blanking cover is encapsulated on the step of ladder hole.
8. composite perforator according to claim 7 is characterized in that the blanking cover bottom surface is the plane.
9. composite perforator according to claim 7 is characterized in that the blanking cover bottom surface is interior concave spherical surface.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120533902 CN202391399U (en) | 2011-12-15 | 2011-12-15 | Inner blind hole composite perforator |
| US13/814,242 US20140053715A1 (en) | 2011-12-15 | 2012-12-14 | Composite perforation device with scallops on the inner wall |
| CA2859181A CA2859181A1 (en) | 2011-12-15 | 2012-12-14 | Composite perforating device with scallops on the inner wall |
| PCT/US2012/069607 WO2013090647A1 (en) | 2011-12-15 | 2012-12-14 | Composite perforating device with scallops on the inner wall |
| US14/580,750 US9297242B2 (en) | 2011-12-15 | 2014-12-23 | Structure for gunpowder charge in multi-frac composite perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120533902 CN202391399U (en) | 2011-12-15 | 2011-12-15 | Inner blind hole composite perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391399U true CN202391399U (en) | 2012-08-22 |
Family
ID=46666330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120533902 Expired - Lifetime CN202391399U (en) | 2011-12-15 | 2011-12-15 | Inner blind hole composite perforator |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140053715A1 (en) |
| CN (1) | CN202391399U (en) |
| CA (1) | CA2859181A1 (en) |
| WO (1) | WO2013090647A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014182304A1 (en) | 2013-05-09 | 2014-11-13 | Halliburton Energy Services, Inc. | Perforating gun apparatus for generating perforations having variable penetration profiles |
| CN109025913A (en) * | 2018-09-29 | 2018-12-18 | 北京大德广源石油技术服务有限公司 | The interior compound sub-clustering perforator of blind hole |
| CN109396489A (en) * | 2018-11-15 | 2019-03-01 | 大庆金祥寓科技有限公司 | A kind of inside and outside blind hole machining lathe of perforating gun gun body |
| CN111133170A (en) * | 2017-08-02 | 2020-05-08 | 地球动力学公司 | High density cluster based perforation system and method |
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9027667B2 (en) | 2009-11-11 | 2015-05-12 | Tong Oil Tools Co. Ltd. | Structure for gunpowder charge in combined fracturing perforation device |
| CN102052068B (en) | 2009-11-11 | 2013-04-24 | 西安通源石油科技股份有限公司 | Method and device for composite fracturing/perforating for oil/gas well |
| 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 |
| CN102410006B (en) | 2011-12-15 | 2014-05-07 | 西安通源石油科技股份有限公司 | Explosive loading structure for multi-stage composite perforating device |
| US9297242B2 (en) | 2011-12-15 | 2016-03-29 | Tong Oil Tools Co., Ltd. | Structure for gunpowder charge in multi-frac composite perforating device |
| US9238956B2 (en) | 2013-05-09 | 2016-01-19 | Halliburton Energy Services, Inc. | Perforating gun apparatus for generating perforations having variable penetration profiles |
| EP3277920A1 (en) | 2015-04-02 | 2018-02-07 | Owen Oil Tools L.P. | Perforating gun with a charge holding tube |
| US9810048B2 (en) * | 2015-09-23 | 2017-11-07 | Benteler Steel/Tube Gmbh | Perforating gun |
| US9896915B2 (en) | 2016-04-25 | 2018-02-20 | Benteler Steel/Tube Gmbh | Outer tube for a perforating gun |
| CN106121595A (en) * | 2016-08-16 | 2016-11-16 | 吉林市双林射孔器材有限责任公司 | A kind of Oil/gas Well sleeve pipe screen cloth perforator |
| 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 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2837995A (en) * | 1952-12-26 | 1958-06-10 | Pgac Dev Co | Unsymmetrically encased shaped explosive charges |
| US2980017A (en) * | 1953-07-28 | 1961-04-18 | Pgac Dev Company | Perforating devices |
| US3620314A (en) * | 1969-10-16 | 1971-11-16 | Dresser Ind | Combination bullet-perforating gun and shaped charge perforator apparatus and method |
| US4760883A (en) * | 1984-08-02 | 1988-08-02 | Atlantic Richfield Company | Wellbore perforating |
| US4627353A (en) * | 1985-10-25 | 1986-12-09 | Dresser Industries, Inc. | Shaped charge perforating apparatus |
| US6439121B1 (en) * | 2000-06-08 | 2002-08-27 | Halliburton Energy Services, Inc. | Perforating charge carrier and method of assembly for same |
| CA2446888C (en) * | 2001-02-06 | 2008-06-17 | Xi'an Tongyuan Petrotech Co., Ltd. | A high-energy combined well perforating device |
| US6497285B2 (en) * | 2001-03-21 | 2002-12-24 | Halliburton Energy Services, Inc. | Low debris shaped charge perforating apparatus and method for use of same |
| US6837310B2 (en) * | 2002-12-03 | 2005-01-04 | Schlumberger Technology Corporation | Intelligent perforating well system and method |
| US6851471B2 (en) * | 2003-05-02 | 2005-02-08 | Halliburton Energy Services, Inc. | Perforating gun |
| US6941871B2 (en) * | 2003-11-05 | 2005-09-13 | Sidney Wayne Mauldin | Faceted expansion relief perforating device |
| US20050139352A1 (en) * | 2003-12-31 | 2005-06-30 | Mauldin Sidney W. | Minimal resistance scallop for a well perforating device |
| US7430965B2 (en) * | 2004-10-08 | 2008-10-07 | Halliburton Energy Services, Inc. | Debris retention perforating apparatus and method for use of same |
| US20060118303A1 (en) * | 2004-12-06 | 2006-06-08 | Halliburton Energy Services, Inc. | Well perforating for increased production |
| US8286697B2 (en) * | 2009-05-04 | 2012-10-16 | Baker Hughes Incorporated | Internally supported perforating gun body for high pressure operations |
-
2011
- 2011-12-15 CN CN 201120533902 patent/CN202391399U/en not_active Expired - Lifetime
-
2012
- 2012-12-14 WO PCT/US2012/069607 patent/WO2013090647A1/en active Application Filing
- 2012-12-14 US US13/814,242 patent/US20140053715A1/en not_active Abandoned
- 2012-12-14 CA CA2859181A patent/CA2859181A1/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014182304A1 (en) | 2013-05-09 | 2014-11-13 | Halliburton Energy Services, Inc. | Perforating gun apparatus for generating perforations having variable penetration profiles |
| EP2946069A4 (en) * | 2013-05-09 | 2016-11-02 | Halliburton Energy Services Inc | Perforating gun apparatus for generating perforations having variable penetration profiles |
| CN111133170A (en) * | 2017-08-02 | 2020-05-08 | 地球动力学公司 | High density cluster based perforation system and method |
| US11187062B2 (en) | 2017-08-02 | 2021-11-30 | Geodynamics, Inc. | High density cluster based perforating system and method |
| US11719077B2 (en) | 2017-08-02 | 2023-08-08 | Geodynamics, Inc. | High density cluster based perforating system and method |
| CN109025913A (en) * | 2018-09-29 | 2018-12-18 | 北京大德广源石油技术服务有限公司 | The interior compound sub-clustering perforator of blind hole |
| CN109396489A (en) * | 2018-11-15 | 2019-03-01 | 大庆金祥寓科技有限公司 | A kind of inside and outside blind hole machining lathe of perforating gun gun body |
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2859181A1 (en) | 2013-06-20 |
| WO2013090647A1 (en) | 2013-06-20 |
| US20140053715A1 (en) | 2014-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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: Tongyuan Petroleum Science and Technology Group Co., Ltd. Address before: Two Xi'an Road, Shaanxi province science and technology 710075 Xi'an Software Park No. 70 Tang Lege room D301 Patentee before: Xi'an Tongyuan Petrotech Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |