CN105041273B - Firing angle high energy gas fracture device is determined in orientation orientation outside a kind of - Google Patents
Firing angle high energy gas fracture device is determined in orientation orientation outside a kind of Download PDFInfo
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- CN105041273B CN105041273B CN201510359655.2A CN201510359655A CN105041273B CN 105041273 B CN105041273 B CN 105041273B CN 201510359655 A CN201510359655 A CN 201510359655A CN 105041273 B CN105041273 B CN 105041273B
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Abstract
The present invention relates to orient orientation outside one kind determining firing angle high energy gas fracture device, the perforator combines orientation and determines the advantages of firing angle perforator is with high energy gas fracture device, i.e., it is to integrate orientation to determine firing angle perforation, Incorporate increase-effect perforating and multistage pulses high enegry gas fracturing as the novel perforating technology of the whole body.The special construction of outer orientation disclosure satisfy that the particular/special requirement of straight well, inclined shaft and horizontal well, have feature at low cost, easy to operate.The invention has not only been merged in outer orientation oriented perforation technology can be by perforating bullet towards the best direction perforation of permeability, the advantages of to make oil gas well capacity be multiplied, simultaneously, the advantages of high energy gas breakage in multistage pulses High-Energy Gas Fracturing Technology is strong, width generation capacity is good and formation fracture can be prevented to be closed has been merged again, and there is good synergistic effect.
Description
Technical field
The invention belongs to a kind of perforator in oil/gas well completion field, it is related to orientation orientation outside one kind and determines firing angle multistage arteries and veins
Rush effect-increasing perforator.
Background technology
When drilling oil, gas-bearing formation, oily, gas-bearing formation permeability is not isotropic around borehole axis：Carbonate formation is split
Downbeam is maximum stress direction when stitching direction, sedimentary rock formations joint direction, glutenite sedimentation, and also referred to as master answers
Force direction, permeability are much better than other directions.If can allow perforating bullet towards the both direction perforation of good penetrability when perforation,
Oily, gas-bearing formation production capacity will obviously increase.It is exactly to make perforation ejection stream towards principal direction of stress that firing angle perforating technology is determined in orientation
Perforation is to achieve the purpose that volume increase.Firing angle perforating technology is determined in orientation can be divided into outer orientation and interior orientation mode, and institute is different
Be it is outer orientation be that body of perforating gun is fixed with firing mount position, pass through perforating gun rotate integrally or rotation keep orient；Interior orientation side
Formula is that body of perforating gun can be rotated mutually with firing mount by bearing touch, passes through the automatic spin orientation of firing mount.Outer orientation is suitable for straight
Well, inclined shaft and horizontal well, interior orientation are only applicable to the inclined shaft or horizontal well that hole deviation is more than 20 °.
Multistage Impulse Increase-effect Perforating Technology exactly collects three kinds of synergistic perforating, high enegry gas fracturing, hydraulic fracturing construction technologies
The synergistic perforating technology being integrated.The technology uses the multistage gunpowder of different burn rates, using special charge constitution, is formed multiple
Gaseous-pressure pulse carries out pressure break to stratum, so that crack is extended, to realize the purpose of increase yields of oil and gas.
It is to have apparent effect to well production increment at present that orientation, which determines firing angle technology and Multistage Impulse Increase-effect Perforating Technology all,
The technology of fruit is promoted the use of in each elephant.
Invention content
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes that the increasing of firing angle multistage pulses is determined in a kind of outer orientation orientation
Perforator is imitated, is to orient orientation outside a kind of collection to determine firing angle perforation, Incorporate increase-effect perforating and multistage pulses high enegry gas fracturing
Firing angle high energy gas fracture device is determined in the perforating system that complex art is integrated, i.e., outer orientation orientation, which can be with
Reach better oil, gas effect of increasing production after making perforating job.
Technical solution
Firing angle high energy gas fracture device, including rotary joint 1, initiator 2, orientation are determined in orientation orientation outside a kind of
Firing angle is determined in pipette tips 3, weighting rifle 4, outer orientation orientation pin and box sub 5, the double pin ends 6 of outer orientation orientation, outer orientation orientation
Synergistic perforating gun 7, screen joint 10, screen casing tail 17, the multi-openings bullet 18 in firing mount；Characterized by further comprising level-one synergy
Gunpowder 9 and two level synergy gunpowder 8；Level-one synergy gunpowder 9 be located in perforating bullet oral area, multiple two level synergy gunpowder 8 be mingled with it is more
Between a perforating bullet 18.
Further include igniter connector 11, partition board Time Delay Squib 12, Special screen 13, three-level synergy gunpowder 14, ignition charge
Column 15 and level Four synergy gunpowder 16；Special screen 13 is connected between screen joint 10 and screen casing tail 17, is set in Special screen 13
There are a stick 15, igniter connector 11, partition board Time Delay Squib 12, three-level synergy gunpowder 14 and level Four synergy gunpowder 16；Even
The relationship of connecing is：14 upper end of three-level synergy gunpowder is connected by partition board Time Delay Squib 12 and igniter connector 11 with screen joint 10
It connects, 14 lower end of three-level synergy gunpowder connects level Four synergy gunpowder 16, and igniting powder column 15 is located at three-level synergy gunpowder 14 and increases with level Four
Between effect gunpowder 16；Then whole to be connect with Special screen 13 and firing angle synergy is determined by screen joint 10 and outer orientation orientation
Perforating gun 7 is connected as one.
There are screw thread, three-level 14 and level Four synergy gunpowder in 16 central tube of the three-level synergy gunpowder 14 and level Four synergy gunpowder
16 by connector and being threaded togather.
It is provided with multiple rows of through-hole on 13 tube wall of Special screen, is opened on inner wall in the pipe to match with multiple rows of lead to the hole site
There are multiple elongated slots, forms the gas leakage path after gunpowder detonation.
Advantageous effect
Firing angle high energy gas fracture device is determined in a kind of outer orientation orientation proposed by the present invention, which combines fixed
The advantages of firing angle perforator is with high energy gas fracture device, is determined in orientation, i.e., it is that firing angle perforation is determined in collection orientation, integral type increases
Perforation and multistage pulses high enegry gas fracturing are imitated as the novel perforating technology of the whole body.The special construction of outer orientation disclosure satisfy that directly
The particular/special requirement of well, inclined shaft and horizontal well has feature at low cost, easy to operate.It is fixed that outer orientation has not only been merged in the invention
It can be by perforating bullet towards the best direction perforation of permeability, to make oil gas well capacity be multiplied in orientation perforating technology
Advantage, meanwhile, and merged that the high energy gas breakage in multistage pulses High-Energy Gas Fracturing Technology is strong, width generation capacity is good and
The advantages of formation fracture being prevented to be closed, has good synergistic effect.
The technical effects of the invention are that：Special determines firing angle structure and the design of outer oriented structure, makes perforator in inclined shaft
And in horizontal well can along principal direction of stress or assigned direction perforation, increase perforation in the earth formation penetrate out area, effectively increase oil
Gas well deliverability channel, while unique multistage gunpowder one package structual makes gunpowder at different levels burn generation multistage high energy gas successively over the ground
Layer carries out pressure break repeatedly, so that stratum is generated crack or primary fracture is made further to expand, further improve Oil ＆ Gas Productivity.Rotation
Adapter and weighting rifle can be reused, and construction cost can be substantially reduced.
Description of the drawings
Fig. 1：High energy gas fracture device structural schematic diagram of the present invention
Fig. 2：High energy gas fracture device segmental structure schematic diagram of the present invention
Fig. 3：To orient the roll structure schematic diagram of orientation pin and box sub 5 outside the present invention
Fig. 4：To orient orientation 6 roll structure schematic diagram of double pin ends outside the present invention
Fig. 5：Rifle structural schematic diagram is laid particular stress on for the present invention
Rotary joint 1, orientation shock or pressure detonator 2, orientation pipette tips 3 lay particular stress on rifle 4, outer orientation orientation public affairs
Firing angle synergistic perforating gun 7, two level synergy gunpowder 8, one are determined in female connector 5, the double pin ends 6 of outer orientation orientation, outer orientation orientation
Grade synergy gunpowder 9, screen joint 10, igniter connector 11, partition board Time Delay Squib 12, Special screen 13, three-level synergy gunpowder
14, multi-openings bullet 18, igniting powder column 15, level Four synergy gunpowder 16, screen casing tail 17.
Specific implementation mode
In conjunction with embodiment, attached drawing, the invention will be further described：
Referring to Fig. 1-Fig. 2, the present invention relates to orient orientation outside one kind determining firing angle high energy gas fracture device, including rotation
Adapter 1, orientation shock or pressure detonator 2, orientation pipette tips 3, lay particular stress on rifle 4, outer orientation orientation pin and box sub 5, outside
Firing angle synergistic perforating gun 7, two level synergy gunpowder 8, level-one synergy gunpowder are determined in the double pin ends 6 of orientation orientation, outer orientation orientation
9, screen joint 10, igniter connector 11, partition board Time Delay Squib 12, Special screen 13, three-level synergy gunpowder 14, multi-openings
Bullet 18, igniting powder column 15, level Four synergy gunpowder 16 and screen casing tail 17.
Referring to Fig. 1, in this embodiment, multi-openings bullet 18 is on the firing mount in outer orientation synergistic perforating gun 7, level-one
Synergy gunpowder 9 is assemblied in perforating bullet oral area, and two level synergy gunpowder 8 is assemblied between multi-openings bullet 18.Three-level 14 and level Four increase
Effect gunpowder 16 has central tube, has screw thread in central tube, three-level 14 and level Four synergy gunpowder 16 are linked together by connector,
14 upper end of three-level synergy gunpowder is linked together by igniter connector 11 and screen joint 10, then whole and Special screen 13
It connects and is connected as one by screen joint 10 and outer orientation synergistic perforating gun 7.Outer orientation synergistic perforating gun 7 can more companies
It is connected in multistage pipe string, to meet the requirement of different perforating lengths, while suitable weighting rifle is added according to different perforating lengths.Every
Plate Time Delay Squib 12 is equipped with certain delay time, can ensure that three-level 14 and level Four synergy gunpowder 16 lag behind level-one, two level
Powder burning, while three, level Four synergy gunpowder has different burn rates, is held to form multistage pulses high energy gas after perforation
Continuous pressure break, considerably increases action time and the effect of high energy gas.
Contact of 1 input terminal of the rotary joint with output end makes rotary joint output and input full by bearing touch
End can rotate relatively freely, while special structure can guarantee that rotary joint keeps good in the case where load capacity is larger
Rotating property.
The orientation pipette tips 3, outer orientation orientation pin and box sub 5, the double pin ends 6 of outer orientation orientation are ball knot
Structure, in order to reduce the frictional force between perforation tubular column and casing, improve the accuracy of orientation.See attached drawing 3 and Fig. 4, side
It is consistent in the connection structure and figure of position pipette tips 3.
It is described to lay particular stress on the special construction that rifle 4 is semicircle counterweight, by determining firing angle synergistic perforating gun 7 with outer orientation orientation
Connection makes perforation tubular column so that perforation tubular column is maintained at preset bearing due to laying particular stress on the presence of rifle 4 in certain hole deviation.
All perforation tubular column spin following components of adapter are all connected as one by outer directional bond and orientation is consistent, that is, revolve
It is consistent that adapter with lower part in rotation determines firing angle synergistic perforating gun orientation for an entirety and outer orientation orientation.
The three-level synergy gunpowder 14 and level Four synergy gunpowder 16 link together in Special screen 13, in central tube
It is lighted equipped with igniting powder column 15, by partition board Time Delay Squib 12, lags behind level-one 9, two level synergy gunpowder 8 to form multistage arteries and veins
It rushes high energy gas and pressure break repeatedly is carried out to stratum.
The Special screen 13 is also provided with cubic bit length slot above in addition to being drilled with multiple rows of 8 orientation macropore, can allow 3 14,
The high energy gas that level Four synergy gunpowder 16 generates smoothly sheds, while the residue after burning can also be received and kept to avoid
Pollution to well.
In use, when perforated interval hole angle is more than 20 °, this perforator connection signal is as shown in Figure 1, rotation connects
First 1 upper end connected pipes, after under tubing string to target zone, rotary joint is with down tube string under the weighting force effect for laying particular stress on rifle 4
Perforation ejection stream is set to be projected towards specified orientation in precalculated position, while by the predetermined firing angle on firing mount, multistage synergy gunpowder
Effect generates bulk gas to the further pressure break in duct and stratum, and reaching orientation, to determine firing angle perforation common with high enegry gas fracturing
The purpose of effect.Residue after burning is collected most of in 13 bottom of Special screen, will not be to generating pollution in well.Work as perforation
When section hole angle is less than 20 °, rifle and rotary joint are laid particular stress on without connecting, it is fixed directly to be realized by the way of rotating tubing string in well head
To.
Claims (7)
1. firing angle high energy gas fracture device, including rotary joint (1), initiator (2), fixed side are determined in a kind of outer orientation orientation
Position pipette tips (3), weighting rifle (4), outer orientation orientation pin and box sub (5), the double pin ends (6) of outer orientation orientation, outer orientation are fixed
Determine firing angle synergistic perforating gun (7), screen joint (10), screen casing tail (17), the multi-openings bullet (18) in firing mount in orientation；Its feature
It is to further include level-one synergy gunpowder (9) and two level synergy gunpowder (8)；Level-one synergy gunpowder (9) is located in perforating bullet oral area, more
A two level synergy gunpowder (8) is mingled between multi-openings bullet (18)；Lay particular stress on rifle (4) be semicircle counterweight structure, by with it is outer
The connection of firing angle synergistic perforating gun (7) is determined in orientation orientation, makes perforation tubular column in hole deviation due to laying particular stress on rifle（ 4）Deposit
It is maintained at preset bearing making perforation tubular column；Rotary joint (1) pipe string below is under the weighting force effect for laying particular stress on rifle (4)
Precalculated position, while making perforation ejection stream towards specifying orientation to project by the predetermined firing angle on firing mount, multistage synergy gunpowder is made
With bulk gas is generated to the further pressure break in duct and stratum, reaches orientation and determine firing angle perforation and make jointly with high enegry gas fracturing
Purpose.
2. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 1, it is characterised in that further include
Igniter connector (11), partition board Time Delay Squib (12), screen casing (13), three-level synergy gunpowder (14), igniting powder column (15) and four
Grade synergy gunpowder (16)；Screen casing (13) is connected between screen joint (10) and screen casing tail (17), and igniting is equipped in screen casing (13)
Powder column (15), igniter connector (11), partition board Time Delay Squib (12), three-level synergy gunpowder (14) and level Four synergy gunpowder
(16)；Connection relation is：Three-level synergy gunpowder (14) upper end by partition board Time Delay Squib (12) and igniter connector (11) with
Screen joint (10) connects, and three-level synergy gunpowder (14) lower end connects level Four synergy gunpowder (16), and igniting powder column (15) is located at three
Between grade synergy gunpowder (14) and level Four synergy gunpowder (16)；Then whole to be connect with screen casing (13) and by screen joint (10)
Determine firing angle synergistic perforating gun (7) with outer orientation orientation to be connected as one.
3. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 2, it is characterised in that：Described three
There are screw thread, three-level synergy gunpowder (14) and level Four synergy gunpowder in grade synergy gunpowder (14) and level Four synergy gunpowder (16) central tube
(16) by connector and being threaded togather.
4. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 2, it is characterised in that：Described
It is provided with multiple rows of through-hole on screen casing (13) tube wall, is provided with multiple elongated slots in the pipe to match with multiple rows of lead to the hole site on inner wall, is formed
Gas leakage path after gunpowder detonation.
5. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 1, it is characterised in that：The rotation
Contact of adapter (1) input terminal with output end passes through bearing touch.
6. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 1, it is characterised in that：It is described fixed
The double pin ends (6) of orientation pipette tips (3), outer orientation orientation pin and box sub (5) and outer orientation orientation are roll structure.
7. firing angle high energy gas fracture device is determined in outer orientation orientation according to claim 1, it is characterised in that：It is described to penetrate
The hole tubing string spin following component of adapter is all connected as one by outer directional bond and orientation is consistent.
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| CN201510359655.2A CN105041273B (en) | 2015-06-25 | 2015-06-25 | Firing angle high energy gas fracture device is determined in orientation orientation outside a kind of |
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| CN201510359655.2A CN105041273B (en) | 2015-06-25 | 2015-06-25 | Firing angle high energy gas fracture device is determined in orientation orientation outside a kind of |
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| 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 |
| CN110608025A (en) * | 2018-06-15 | 2019-12-24 | 中石化石油工程技术服务有限公司 | Pulse type spraying sand adding tool |
| CN110939424B (en) * | 2019-11-27 | 2022-04-12 | 西安物华巨能爆破器材有限责任公司 | Well-free underground coal gasification ignition method |
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| CN201574735U (en) * | 2009-11-27 | 2010-09-08 | 中国兵器工业第二一三研究所 | Inclined shaft azimuthal orientation multilevel pulse benefit increment perforating device |
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| CN101566056B (en) * | 2009-06-04 | 2012-04-25 | 西安瑞通能源科技有限公司 | Body-free coaxial following synergistic perforator |
| CN201620848U (en) * | 2009-11-27 | 2010-11-03 | 中国兵器工业第二一三研究所 | Vertical well orientation multi-pulse increase-benefit perforating device |
| CN102865058B (en) * | 2012-09-14 | 2015-09-16 | 中北大学 | Multi-pulse synergistic perforation device |
| CN203925444U (en) * | 2013-11-15 | 2014-11-05 | 山西江阳兴安民爆器材有限公司 | A kind of have a body of a gun composite perforating charge |
| CN204782953U (en) * | 2015-06-25 | 2015-11-18 | 西安物华巨能爆破器材有限责任公司 | Outer directional multistage pulse increase perforator |
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| CN201574735U (en) * | 2009-11-27 | 2010-09-08 | 中国兵器工业第二一三研究所 | Inclined shaft azimuthal orientation multilevel pulse benefit increment perforating device |
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