CN204827399U - A energy release device for cable perforation ware - Google Patents
A energy release device for cable perforation ware Download PDFInfo
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- CN204827399U CN204827399U CN201520649409.6U CN201520649409U CN204827399U CN 204827399 U CN204827399 U CN 204827399U CN 201520649409 U CN201520649409 U CN 201520649409U CN 204827399 U CN204827399 U CN 204827399U
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- Prior art keywords
- hole
- energy release
- cable perforation
- release device
- release
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Abstract
The utility model relates to an energy release device for cable perforation ware, including the energy release body, have through -hole and a plurality of ability hole of letting out on the energy release body, this through -hole communicates with the inner chamber of cable perforation ware, a plurality of let out can the hole along the axis symmetric distributions of energy release device, every is let out and can the hole has 30 - 120 contained angle with energy release device axis to it can hole and through -hole intercommunication to let out, the left end of energy release body has the bushing body, and the right -hand member has the valve body connector, internal thread on the bushing body has the external screw thread on the valve body connector. This energy release device simple structure, low in production cost, convenient to use lets out the high -pressure gas that can the hole release through the axis symmetric distribution along the energy release device a plurality of and meets with effectually.
Description
Technical field
Tentatively makes the accessory of seam device when the utility model relates to the exploitation of a kind of shale gas-bearing formation, particularly a kind of can device for releasing of cable perforation device.
Background technology
Shale gas refers to that tax is stored in rich organic mud stone and interlayer thereof, and to adsorb or free state is the Unconventional forage of main existing way, composition is based on methane.In recent years, U.S.'s shale gas exploration and development technological break-through, output increased fast, realized its " natural gas revolution ", produces significant impact, rewritten world energy sources general layout greatly to international market for natural gas and world energy sources general layout.But rammell rock has the characteristics such as compact structure, hard, ultralow permeability, thus shale gas exploitation is very difficult.
The comparatively ripe technical scheme of seam tentatively made by exploitation shale gas well in the world is at present puncture oil pipe and rock with jet perforator as the device tentatively making seam in the horizontal oil pipe well laid, and what form rammell rock tentatively makes seam.Its principle is, with cable, perforator is delivered to the position that perforation wanted by sleeve pipe, ignites perforation bullet by electric cap.Bullet is the fine and close bullet that efficient gunpowder is pressed into cumulative, and outsourcing is with copper sheet.Gunpowder detonation is along the center of taper surface, and moment, with the injection stream of the high speed of 8000 meters per second and more than 2000 DEG C high temperature, penetrates and wears tube wall and cement layer, penetrate 300 ~ 500 millimeters more in the earth formation.Each perforating gun is to surrounding along helix device rounds, and every meter of length shot density is no less than 15 ~ 20 holes, to ensure fuel-displaced bare area.The perforation of efficient, adds the fracturing methods of oil reservoir sometimes, and perforation completion is occupied an leading position in completion method.Develop now and be oil pipe and connect oil pipe perforation.But adopt jet perforating apparatus tentatively to make seam still to have the following disadvantages:
1, this device perforation principle belongs to gunpowder ignition, is chemical agent, is storing and transport is existing the dangerous impact with there being pollution.
After the shaping powder column blast of 2, lined-cavity charge, produce the shock wave of high temperature, high pressure, make in groove, the some particles of red copper metal cap becomes the particle metal stream that speed reaches 1000m/s.When the metal flow of this burst of high speed runs into obstruction, puncture sleeve pipe, cement sheath and oil-gas Layer rock, form an eyelet, around eyelet, form the extremely low compaction band of a permeability simultaneously, to greatly reduce the difference energy of perforated hole, conventional perforation technology there is no the impact that method eliminates it.In addition, if the performance of perforating bullet is bad, also formation pestle is blocked up.
Utility model content
For prior art exist the problems referred to above, the purpose of this utility model be to provide a kind of convenience coordinate with cable perforation device make seam release energy device.
For achieving the above object, the utility model adopts following technical scheme: a kind of can device for releasing of cable perforation device, comprise that release can body, described in release and body can have through hole and multiple letting out can hole, the inner space of this through hole and cable perforation device; Described multiple let out can hole can the axisymmetrical distribution of device along releasing, each let out can hole with release and device axis can have the angle of 30 °-120 °, and let out and can be communicated with through hole in hole; The described left end releasing energy body has sleeve pipe connector, and right-hand member has valve body connector; Internal thread on sleeve pipe connector, valve body connector has external screw thread.
As optimization, described in release can body be cylindrical boss structure.
As optimization, described in let out can hole with release can device axes normal.
Relative to prior art, the utility model tool has the following advantages: this release can apparatus structure simple, cost of production is low, easy to use, by axisymmetrical distribution multiple of device let out and can meet with effective by the gases at high pressure that discharge of hole along releasing.
Accompanying drawing explanation
Fig. 1 is the structural representation of cable perforation device.
Fig. 2 is the structural representation of sleeve pipe.
Fig. 3 is the structural representation filling tapping valve.
Fig. 4 is the structural representation of press seal screw.
Fig. 5 is the structural representation releasing energy device.
Fig. 6 is the structural representation of interior electrode fixing body.
Fig. 7 is the structural representation of external electrode lead body.
Fig. 8 is the structural representation of cutting ring.
Fig. 9 is the structural representation of external electrode over cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
See Fig. 1-Fig. 9, a kind of can device for releasing of cable perforation device, comprise that release can body 30, release and body 30 can have through hole 31 and multiple letting out can hole 33, the inner space of this through hole 31 and cable perforation device.
Multiple letting out can distribute along the axisymmetrical releasing energy device in hole 33, each angle let out energy hole 33 and release that energy device axis has 30 °-120 °, and let out and can be communicated with through hole 31 in hole 33, during concrete enforcement, let out can hole 33 with release can device axis be preferably vertical arranges, the loss of pressure when gases at high pressure penetrate can be reduced so as much as possible.Releasing body 30 can be cylindrical boss structure, conveniently describes in detail with below sleeve pipe 20() be connected, also facilitate die sinking manufacture simultaneously.
Release and the left end of body 30 can have the sleeve pipe connector 32 be connected with sleeve pipe 20, right-hand member has and fills tapping valve below valve body 10(and describe in detail) the valve body connector 34 that is connected; Internal thread 32a on sleeve pipe connector 32, for being threaded with the right side of sleeve pipe 20, valve body connector 34 has the external screw thread 34a coordinated with the internal thread 12 on valve body 10.
Describe in detail below this release can body and cable perforation device with the use of:
Cable perforation device, comprises sleeve pipe 20, releases energy device, fills electrode and external electrode in tapping valve.Fill tapping valve and release the two ends, left and right that energy device is connected to sleeve pipe 20.
Sleeve pipe 20 radially has independently inner chamber 21 and exocoel 23 from inside to outside, and described inner chamber 21 and exocoel 23 axially run through along sleeve pipe 20.Inner chamber 21 is for holding the critical CO of mixes liquid
2, the critical CO of mixes liquid
2comprise subcritical liquid state CO
2mutually be mixed to get fluid-mixing with the abrasive material of jet, the preferred fineness of abrasive material is the 5-8wt% that the addition of 60 order-120 object garnet sand milling material may be controlled to account for fluid-mixing weight; Exocoel 23 easily produces the liquid of thermal chemical reaction at electrode conditions for holding.
Fill tapping valve and comprise valve body 10 and chemical heat reaction unit, valve body 10 has electrode and introduce structure and the topping up structure to inner chamber 21 and exocoel 23 topping up; Chemical heat reaction unit is connected with valve body, and be positioned at exocoel 23, metal mesh opening pipe is preferably with bolts on valve body, and this connection easy to connect and dismounting are all very convenient, thus chemical reaction material water proof below the bag 16(be convenient in inspection and replacing chemical heat reaction unit describes in detail)
Valve body 10 pref. cylindrical structure, its two ends have internal thread 12 respectively, and valve body 10 is threaded with the left end of sleeve pipe 20.It is conveniently connected with sleeve pipe 20 by two ends internal thread arrange on the one hand, on the other hand can easily with release and can be connected by device (describing in detail below), thus can join end to end by multiple independently cable perforation device, what form multisection type makes seam emitter, disposablely can carry out multistage rock for splitting explosion like this.
Chemical heat reaction unit comprises metal mesh opening pipe 14, is provided with chemical reaction material water proof bag 16 in this metal mesh opening pipe 14, is provided with firing head in this reaction material water proof bag 16; Interior electrode is connected with firing head.Metal mesh opening pipe 14 can be endless metal mesh tube, and in endless metal mesh tube, laterally zygomorphic position arranges a chemical reaction material water proof bag 16 respectively, when its exothermic reaction, can heat more rapidly the liquid CO being positioned at inner chamber 21
2.
The chemical agent be equipped with in chemical reaction material water proof bag 16 is under the catalysis of electric spark, and vigorous reaction releases the chemical liquid that heat is dispersed into main body exocoel; The chemical liquid of exocoel is heated and the liquid CO that the further distribute heat of chemical reaction makes inner chamber occurs
2rapid vaporization.
Electrode is introduced structure and any convenience can be adopted to be introduced by electrode, to the structure of chemical heat reaction unit energising, preferably adopts following structure: electrode is introduced structure and comprised external electrode installing hole 11, interior electrode mounting hole 13 and interior electrode fixing body 15;
External electrode installing hole 11 and valve body 10 axes normal, during concrete enforcement, external electrode installing hole 11 is arranged on the middle part of valve body, and two ends each installation external electrode lead body 11a respectively of external electrode installing hole 11, external electrode lead body 11a is connected with the wiring of cable.
External electrode lead body 11a structural form is a kind of high-strength bolt structure, position on nut has two-way horn mouth and is used for accessing lead-in wire, during use, lead-in wire is passed from arbitrary horn mouth, then lead riser is converted into bifilar after make lead riser suppress tightly stuck in two-way bell-mouthed bottleneck toward pulling back again, then in lead-in wire access screw rod internal channel, enter valve body to be connected with interior electrode, draw in body opening at a screw rod external electrode and place pad, then tighten bolt.
There is external electrode protecting cover 60 at the external electrode lead body place of valve body 10, is used for protecting the use of external electrode, also can be used for discharging water, moistureproof.
Interior electrode mounting hole 13 is communicated with external electrode installing hole 11, and interior electrode fixing body 15 is fixed on the end of interior electrode mounting hole 13, and interior electrode mounting hole can be axially parallel with valve body.
Topping up structure to inner chamber 21 and exocoel 23 topping up can adopt any convenience liquid to be injected the structure of inner chamber 21 and exocoel 23, the following structure of preferred employing, topping up structure comprises inner chamber topping up hole 17, exocoel topping up hole 19 and the press seal screw 18 for shutoff inner chamber topping up hole 17, exocoel topping up hole 19; Inner chamber topping up hole 17 is communicated with inner chamber 21, and exocoel topping up hole 19 is communicated with exocoel 23.Press seal screw 18 is used for shutoff note inner chamber topping up hole 17 and exocoel topping up hole 19 mainly in order to prevent from injecting the leak of liquid of inner chamber 21 and exocoel 23.
Dispatch from foreign news agency level is used for connecing electricity to cable perforation device, and interior electrode is used for dispatch from foreign news agency to introduce in chemical heat reaction unit.
The right side of sleeve pipe 20 has cavity 25, and sleeve pipe connector 32 is positioned at cavity 25.This syndeton makes sleeve pipe 20 and releases the connection of energy device more closely with firm.Cutting ring 28 is provided with between cavity 25 and sleeve pipe connector 32.
Cutting ring 28 is boss shape structure, and its inside has technique salient point 26.Technique salient point 26 is semicircle spiral shell hat-shaped structure,
The inner via hole of cutting ring 28, by regulating pressure and the speed of releasing to realize multiple requirement, its inner via hole technique salient point 26 can keep local to connect during the fracture of sheet pressurized for letting out in level pressure, realizes without metal bump, protective device.
Inner chamber 21 is communicated with by transition conduit 27 with the through hole 31 released on energy body 30, is provided with level pressure and lets out energy sheet 29 in transition conduit 27.Level pressure is let out and the pressure of sheet can be regulated and can also set different burst pressures according to the rammell of different terrain, determining best burst pressure, making rock higher for splitting efficiency by shape parameter and design formulas relatively.
The installation process of cable perforation device is as follows: level pressure let out and can sheet and transition conduit 27 inwall compress, and setting let out energy sheet let out energy pressure.Chemical agent is reacted pocket again and put into endless metal mesh tube, firing head is put into chemical agent reaction pocket, draw wiring and interior Electrode connection from firing head, interior electrode is connected with external electrode, finally valve body is connected afterburning compression with sleeve pipe.Now, after completing sealing, start fluid injection work: the press seal screw unclamping shutoff inner chamber topping up hole and exocoel topping up hole, the duct of liquid in valve body enters exocoel and inner chamber respectively, and because press seal tip of screw is equipped with seal, liquid can not leak outside; After liquid is full of, tighten sealing screw, can complete topping up task, during the liquid of draining in body when needing handling failure, unclamping sealing screw can discharge.
Present oil well operation generally all adopts underbalance perforating technique.When so-called underbalance perforating refers to perforation, shaft bottom head of liquid is lower than the perforation under reservoir pressure condition.In the moment of underbalance perforating, due to the existence of negative pressure, formation fluid can be made to produce a reverse reflux, rinse preforation tunnel, avoid eyelet blocking and perforating fluid to the infringement of reservoir, also likely alleviate compaction degree simultaneously.Therefore underbalance perforating is a kind of perforating methods protected reservoir, improve production capacity, reduce costs.But one side will ensure that eyelet cleans, wash away the fine particle of the circumocular broken compaction band that portals, and namely meets the minimum sub-atmospheric pressure of this little requirement; On the other hand, the perforation of excessive negative pressure may cause the poor formation fines migration of physical property, blocking venturi, and unconsolidated formation is shaked out and caves in, thus produces great formation damage, namely needs to consider peak suction.Only have the intrusion selecting suitable Negative Pressure Difference perforation just can avoid harmful fluids, formation fluid can also be made to form stronger flushing in the moment of perforation by Negative Pressure Difference effect and reflux, rinse perforation tunnel, alleviate compacting impact, thus improve perforated hole production capacity.Negative pressure value is crossed conference and is caused formation sand production and damage sleeve pipe, and negative pressure value is too low can not guarantee again the clean of eyelet.Choose the key that suitable negative pressure value is negative-pressure design.So we can be let out and can be regulated perforation pressure (namely letting out energy hole 33) by sheet by level pressure.Wherein determine that the design formulas of perforation pressure is as follows:
If reservoir is without history of shaking out
If reservoir has history of shaking out
K<10
-3um
K>10
-3um
determined by contiguous mud stone interval transit time:
If DT
as>300ms/m,
If DT
as<300ms/m,
the Maximum safe pressure of down-hole string and cement sheath,
represent reasonable Negative Pressure Difference,
represent minimal negative pressure reduction,
represent that peak suction is poor.
The operating principle of the utility model cable perforation device:
First installing cables perforator, process is as follows: level pressure let out and can compress with transition conduit 27 inwall by sheet, and setting let out energy sheet let out energy pressure.Chemical agent is reacted pocket again and put into endless metal mesh tube, firing head is put into chemical agent reaction pocket, draw wiring and interior Electrode connection from firing head, interior electrode is connected with external electrode, finally valve body is connected afterburning compression with sleeve pipe.Now, after completing sealing, start fluid injection work: the press seal screw unclamping shutoff inner chamber topping up hole and exocoel topping up hole, the duct of liquid in valve body enters exocoel and inner chamber respectively, and because press seal tip of screw is equipped with seal, liquid can not leak outside; After liquid is full of, tighten sealing screw, can complete topping up task, during the liquid of draining in body when needing handling failure, unclamping sealing screw can discharge.
After complete equipment device, inject liquid CO
2and chemical liquid, tighten sealing screw.By cable cable perforation device be transported to object rammell and locate, then descending payout to go between and internal and external electrode connected, the chemical agent in chemical reaction material water proof bag is activated, the temperature of cannula cavity is raised, liquid CO
2rapid temperature increases, vaporization reach that level pressure lets out can the pressure of sheet setting, lets out and can be opened by sheet, and gases at high pressure can multiple letting out can hole on device by releasing, multidirectionally tell ejection to rammell, produce the pressure-air shock pulse of some row, make rock produce comparatively good crackle, liquid CO
2finer abrasive enter rock from act as proppant and gel breaker, prevent the literary composition that splits of rock from closing.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. can a device for releasing of cable perforation device, it is characterized in that: comprise that release can body (30), described in release and body (30) can have through hole (31) and multiple letting out can hole (33), the inner space of this through hole (31) and cable perforation device;
Described multiple let out can hole (33) can the axisymmetrical distribution of device along releasing, each let out can hole (33) with release and device axis can have the angle of 30 °-120 °, and let out and can be communicated with through hole (31) in hole (33);
The described left end releasing energy body (30) has sleeve pipe connector (32), and right-hand member has valve body connector (34);
The upper internal thread (32a) of sleeve pipe connector (32), valve body connector (34) has external screw thread (34a).
2. as claimed in claim 1 can device for releasing of cable perforation device, it is characterized in that: described in release body (30) to be cylindrical boss structure.
3. as claimed in claim 1 can device for releasing of cable perforation device, it is characterized in that: described in let out can hole (33) with release can device axes normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649409.6U CN204827399U (en) | 2015-08-26 | 2015-08-26 | A energy release device for cable perforation ware |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649409.6U CN204827399U (en) | 2015-08-26 | 2015-08-26 | A energy release device for cable perforation ware |
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| Publication Number | Publication Date |
|---|---|
| CN204827399U true CN204827399U (en) | 2015-12-02 |
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ID=54685010
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520649409.6U Expired - Fee Related CN204827399U (en) | 2015-08-26 | 2015-08-26 | A energy release device for cable perforation ware |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658397A (en) * | 2022-04-15 | 2022-06-24 | 吉林市双林射孔器材有限责任公司 | Oil gas well casing slotting mesh-making perforator |
-
2015
- 2015-08-26 CN CN201520649409.6U patent/CN204827399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658397A (en) * | 2022-04-15 | 2022-06-24 | 吉林市双林射孔器材有限责任公司 | Oil gas well casing slotting mesh-making perforator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160826 |