CN204851197U - Multistage pulse increase perforator of interior orientation - Google Patents
Multistage pulse increase perforator of interior orientation Download PDFInfo
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- CN204851197U CN204851197U CN201520445342.4U CN201520445342U CN204851197U CN 204851197 U CN204851197 U CN 204851197U CN 201520445342 U CN201520445342 U CN 201520445342U CN 204851197 U CN204851197 U CN 204851197U
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- synergy gunpowder
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Abstract
The utility model relates to a multistage pulse increase perforator of interior orientation, the advantage that firing angle perforator and multistage pulse increase perforator are decided in the interception has been synthesized to this perforator, it is that the firing angle perforation is decided in an album interception to be it, the gaseous fracturing of integral type increase perforation and multistage pulse high energy is novel perforation technique all over the body, the utility model discloses a can be with the perforating bullet towards direction perforation that the permeability is best when not only having fused the perforation in the inclined shaft interception perforation technique, thereby make the advantage of the productivity fold increase of oil gas well, and simultaneously, the gaseous energy to fracture reinforce of high energy in the gaseous fracturing technique of multistage pulse high energy has been fused again, the width generation capacity good with can prevent the advantage of stratum crack -closure, has fine increase effect.
Description
Technical field
The invention belongs to a kind of perforator in oil gas well completion field, relate to a kind of interior orientation orientation and determine firing angle high energy gas fracture device.
Background technology
When drilling oil, gas-bearing formation, around borehole axis, the permeability of oil, gas-bearing formation is not isotropic: when the fractuer direction of carbonate formation, direction, sedimentary rock formations joint, glutenite sedimentation, downbeam is maximally stress direction, also claim principal direction of stress, its permeability is much better than other direction.If perforating bullet can be allowed during perforation towards the both direction perforation of good penetrability, the production capacity of oil, gas-bearing formation will obviously increase.It is exactly the object making perforating bullet jet towards principal direction of stress perforation thus reach volume increase that firing angle perforating technology is determined in orientation.
Multistage Impulse Increase-effect Perforating Technology, integrates the synergistic perforating technology of synergistic perforating, high enegry gas fracturing, fracturing three kinds of construction technologies exactly.This technology adopts the multistage gunpowder of different combustion speed, utilizes special charge constitution, forms multiple gaseous-pressure pulse formation and carry out pressure break, crack is extended, thus realizes the object of increase yields of oil and gas.
Firing angle technology is determined in orientation and Multistage Impulse Increase-effect Perforating Technology is all the technology at present well production increment to positive effect, promotes the use of at each elephant.
Summary of the invention
The technical problem solved
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of interior orientation high energy gas fracture device, a kind ofly integrate the perforating system that firing angle perforation, Incorporate increase-effect perforating and multistage pulses high enegry gas fracturing comprehensive technology are determined in interior orientation orientation, namely firing angle high energy gas fracture device is determined in interior orientation orientation, and this perforator reaches better oil, gas effect of increasing production after can making perforating job.
Technical scheme
A kind of interior orientation high energy gas fracture device, comprises the multi-openings bullet 13 in interior transition joint 1, directed synergistic perforating gun 2, firing mount, screen joint 5 and screen casing tail 12; Characterized by further comprising one-level synergy gunpowder 4 and multiple secondary synergy gunpowder 3; One-level synergy gunpowder 4 is arranged on perforating bullet 13 oral area, and multiple secondary synergy gunpowder 3 is mingled with between multi-openings bullet 13.
Also comprise: Special screen 9, igniting powder column 10, igniter joint 6, dividing plate Time Delay Squib 7, three grades of synergy gunpowder 8 and level Four synergy gunpowder 11; Special screen 9 is connected between screen joint 5 and screen casing tail 12, is provided with igniting powder column 10, igniter joint 6, dividing plate Time Delay Squib 7, three grades of synergy gunpowder 8 and level Four synergy gunpowder 11 in Special screen 9; Annexation is: three grades of synergy gunpowder 8 upper ends are connected with screen joint 5 with igniter joint 6 by dividing plate Time Delay Squib 7, three grades of synergy gunpowder 8 lower ends connect level Four synergy gunpowder 11, and igniting powder column 10 is between three grades of synergy gunpowder 8 and level Four synergy gunpowder 11; ; Then entirety is connected with Special screen 9 and is connected as one by screen joint 5 and interior orientation synergistic perforating gun 2.
Described three grade 8 and level Four synergy gunpowder 11 center are provided with central tube, and be provided with screw thread in central tube, three grade of 8 synergy gunpowder and level Four synergy gunpowder 11 are linked together by connector.
The tube wall of described Special screen 9 has many exhausting holes, in the pipe matched with many exhausting holes position, inwall has multiple elongated slot, form the gas leakage path after gunpowder detonation.
Beneficial effect
A kind of interior orientation high energy gas fracture device that the present invention proposes, this perforator combines the advantage that firing angle perforator and high energy gas fracture device are determined in orientation, namely it is that firing angle perforation is determined in collection orientation, Incorporate increase-effect perforating and multistage pulses high enegry gas fracturing are novel perforating technology all over the body, can by perforating bullet towards the best direction perforation of permeability when this utility model has not only merged the perforation in inclined shaft oriented perforation technology, thus make the advantage that oil gas well capacity is multiplied, simultaneously, the high energy gas breakage merged again in multistage pulses High-Energy Gas Fracturing Technology is strong, width generation capacity is good and can prevent the advantage that formation fracture is closed, there is good synergistic effect.
Technique effect of the present invention is: special determines firing angle structure and interior orientation structure design, make perforator can along principal direction of stress or assigned direction perforation in inclined shaft and horizontal well, increase perforation in the earth formation penetrate out area, effective increase Oil & Gas Productivity passage, simultaneously unique multistage gunpowder one package structual makes gunpowder at different levels burn successively to produce multistage high energy gas formation to carry out pressure break repeatedly, make generation crack, stratum or primary fracture is expanded further, further increasing Oil & Gas Productivity.
The special righting structure of transition joint can ensure height of burst uniformity during perforating bullet perforation, makes the barrel hole size on sleeve pipe relatively more consistent, is conducive to the uniformity of all directions pressure break; Joint is milled with four directions simultaneously, can increase current by pass, local pressure excessive generation accident when preventing high energy gas from discharging.
Accompanying drawing explanation
Fig. 1: structural representation of the present invention
Fig. 2: transition joint structural representation of the present invention
Transition joint 1, interior orientation synergistic perforating gun 2, secondary synergy gunpowder 3, one-level synergy gunpowder 4, screen joint 5, igniter joint 6, dividing plate Time Delay Squib 7, three grades of synergy gunpowder 8, Special screen 9, igniting powder column 10, level Four synergy gunpowder 11, screen casing tail 12, multi-openings bullet 13.
Detailed description of the invention
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
See Fig. 1-Fig. 2, the present invention relates to a kind of interior orientation orientation and determine firing angle multistage pulses perforator, comprise transition joint 1, interior orientation synergistic perforating gun 2, secondary synergy gunpowder 3, one-level synergy gunpowder 4, screen joint 5, igniter joint 6, dividing plate Time Delay Squib 7, three grades of synergy gunpowder 8, Special screen 9, igniting powder column 10, level Four synergy gunpowder 11, screen casing tail 12 and multi-openings bullet 13.
See Fig. 1, in this embodiment, multi-openings bullet 13 is contained on the firing mount in interior orientation synergistic perforating gun 2, one-level synergy gunpowder 4 is assemblied in perforating bullet oral area, secondary synergy gunpowder 3 between perforating bullet, the contact between firing mount and perforating gun all by bearing to ensure that firing mount can remain its position under the effect at balancing weight in certain hole deviation situation.Three grade 8 and level Four synergy gunpowder 11 have central tube, screw thread is had in central tube, by connector, three grade 8 and level Four synergy gunpowder 11 are linked together, three grades of synergy gunpowder 8 upper ends are linked together by igniter joint 6 and screen joint 5, and then entirety is connected with Special screen 9 and is connected as one by screen joint 5 and interior orientation synergistic perforating gun 2.Interior orientation synergistic perforating gun 2 can many connections be multistage pipe string, with the requirement of satisfied different perforating length.Dividing plate Time Delay Squib 7 is provided with certain time delay, can ensure that three grade 8 and level Four synergy gunpowder 11 lag behind one-level 4, secondary 3 powder burning, simultaneously three, level Four synergy gunpowder has different combustion speed, thus after perforation, form multistage pulses high energy gas continue pressure break, considerably increase action time and the effect of high energy gas.
Transition joint 1 external diameter is slightly larger than interior orientation synergistic perforating gun 2 external diameter and maximum outside diameter place is arc structure, object is in order to by interior orientation synergistic perforating gun 2 suitable righting in sleeve pipe, to ensure the uniformity of sleeve pipe all directions preforation tunnel size, for the uniformity of later stage fracturing work provides good condition, distinctive arc structure can reduce transition joint 1 and the contact area of sleeve pipe simultaneously, reduces the possibility of card rifle.
Perforating bullet in interior orientation synergistic perforating gun 2 to be arranged and firing mount is provided with balancing weight for determining firing angle mode, to reach the object towards stratum principal direction of stress perforation or particular/special requirement direction perforation, perforating bullet oral area is equipped with one-level synergy gunpowder 4, secondary synergy gunpowder 3 is housed between perforating bullet, after perforating bullet detonates perforation, discharges a large amount of high enegry gas fracturing perforation tunnel and stratum immediately.
Described Special screen 9, above except being drilled with many rows 8 orientation macropores, also has four orientation elongated slots, can allow 38, high energy gas that level Four synergy gunpowder 11 produces sheds smoothly, the residue after burning can also be received and kept thus avoided the pollution to well simultaneously.
The present invention in use, install under after initiator to enter to construct in well topmost, perforated interval hole angle need be greater than 20 °, when under tubing string after target zone, firing mount is automatic orientation under the Action of Gravity Field of weighting block, make perforating bullet jet towards the injection of appointment orientation, multistage synergy gunpowder effect simultaneously produces a large amount of gas to the further pressure break in duct and stratum, reaches orientation and determines firing angle perforation and the coefficient object of high enegry gas fracturing.Major part is collected in bottom Special screen 8 by the residue after burning, can not pollute producing in well.
The present invention's in use gunpowder assembling can select all assembling or only assembled portion gunpowder according to real needs.
Claims (6)
1. an interior orientation high energy gas fracture device, comprises the multi-openings bullet (13) in interior transition joint (1), directed synergistic perforating gun (2), firing mount, screen joint (5) and screen casing tail (12); Characterized by further comprising one-level synergy gunpowder (4) and multiple secondary synergy gunpowder (3); One-level synergy gunpowder (4) is arranged on perforating bullet (13) oral area, and multiple secondary synergy gunpowder (3) is entrained between multi-openings bullet (13).
2. interior orientation high energy gas fracture device according to claim 1, characterized by further comprising: Special screen (9), igniting powder column (10), igniter joint (6), dividing plate Time Delay Squib (7), three grades of synergy gunpowder (8) and level Four synergy gunpowder (11); Special screen (9) is connected between screen joint (5) and screen casing tail (12), is provided with igniting powder column (10), igniter joint (6), dividing plate Time Delay Squib (7), three grades of synergy gunpowder (8) and level Four synergy gunpowder (11) in Special screen (9); Annexation is: three grades of synergy gunpowder (8) upper ends are connected with screen joint (5) with igniter joint (6) by dividing plate Time Delay Squib (7), three grades of synergy gunpowder (8) lower ends connect level Four synergy gunpowder (11), and igniting powder column (10) is positioned between three grades of synergy gunpowder (8) and level Four synergy gunpowder (11); Then be overallly connected with Special screen (9) and pass through screen joint (5) and interior orientation synergistic perforating gun (2) connects as one.
3. interior orientation high energy gas fracture device according to claim 2, it is characterized in that: described three grades (8) and level Four synergy gunpowder (11) center are provided with central tube, be provided with screw thread in central tube, three grades of (8) synergy gunpowder and level Four synergy gunpowder (11) are linked together by connector.
4. interior orientation high energy gas fracture device according to claim 2, it is characterized in that: the tube wall of described Special screen (9) has many exhausting holes, in the pipe matched with many exhausting holes position, inwall has multiple elongated slot, form the gas leakage path after gunpowder detonation.
5. interior orientation high energy gas fracture device according to claim 1, is characterized in that: described transition joint (1) external diameter is greater than interior orientation synergistic perforating gun (2) external diameter and maximum outside diameter place is arc structure.
6. interior orientation high energy gas fracture device according to claim 1, is characterized in that: the perforating bullet in described interior orientation synergistic perforating gun (2) is for determining firing angle mode and arrange and firing mount being provided with balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445342.4U CN204851197U (en) | 2015-06-25 | 2015-06-25 | Multistage pulse increase perforator of interior orientation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520445342.4U CN204851197U (en) | 2015-06-25 | 2015-06-25 | Multistage pulse increase perforator of interior orientation |
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| CN204851197U true CN204851197U (en) | 2015-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929591A (en) * | 2015-06-25 | 2015-09-23 | 西安物华巨能爆破器材有限责任公司 | Inner orientation interception fixed-jet-angle multistage pulse enhanced-perforator |
-
2015
- 2015-06-25 CN CN201520445342.4U patent/CN204851197U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929591A (en) * | 2015-06-25 | 2015-09-23 | 西安物华巨能爆破器材有限责任公司 | Inner orientation interception fixed-jet-angle multistage pulse enhanced-perforator |
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