CN203685145U - Gun throwing device for perforating gun - Google Patents
Gun throwing device for perforating gun Download PDFInfo
- Publication number
- CN203685145U CN203685145U CN201320591924.4U CN201320591924U CN203685145U CN 203685145 U CN203685145 U CN 203685145U CN 201320591924 U CN201320591924 U CN 201320591924U CN 203685145 U CN203685145 U CN 203685145U
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- Prior art keywords
- central tube
- gun
- cylindrical shell
- losing
- downstream
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- Expired - Lifetime
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Abstract
The utility model provides a gun throwing device for a perforating gun. The gun throwing device for the perforating gun comprises a cylinder body, a connecting section, a central tube and a locking mechanism, wherein the connecting section is inserted inside the cylinder body and is used for fixedly connecting the perforating gun, the central tube is arranged inside the inner cavities of the cylinder body and the connecting section and is used for being fixedly connected with the connecting section, the locking mechanism is arranged between the central tube and the cylinder body, and the locking mechanism comprises a sliding sleeve which sleeves the central tube and limits a containing groove, a cutting unit which is arranged on the central tube and is used for keeping the sliding sleeve from sliding towards the upstream, and a clamping piece which is arranged on the inner wall of the cylinder body and is used for clamping the sliding sleeve and keeping the sliding sleeve from sliding towards the downstream. The downstream end of the sliding sleeve is provided with a suppressing cavity, a transmission hole is formed in the central tube and is communicated with the suppressing cavity, and a bursting sleeve is arranged inside the central tube and is used for sealing the transmission hole. According to the gun throwing device for the perforating gun, the gun throwing work can be finished under a high temperature and a high pressure, and the fact that liquid flows into the perforating gun so that the gun throwing device finishes the gun throwing work ahead of time is effectively avoided.
Description
Technical field
The utility model relates to oil gas completion technique field, relate in particular to a kind of for lost perforating job perforating gun lose gun apparatus.
Background technology
In oil gas completion technique field, perforating gun (claiming again perforator) is mainly used in penetrating sleeve pipe, cement sheath and the part stratum of wearing in Oil/gas Well, thereby sets up the oil gas circulation between oil-gas Layer and pit shaft.In actual mechanical process, conventionally can select corresponding gun perforation process according to different hole conditions.For example, under and hole condition condition that oil production is large high at strata pressure, use flow string that perforating gun is delivered to object and treat in perforation layer, then trigger perforating gun and complete perforation function, thereby complete gun perforation process.For the flow channel of smooth and easy pit shaft inside, the perforating gun that completes perforating job of pit shaft inside need to be lost.
Chinese patent CN202391396U discloses a kind of pressure time delay auto-gun device that detonates.In the process of flow string transport perforating gun, because the inside of the perforating gun under high temperature and high pressure environment very easily enters fluid, making this lose gun apparatus can cause fulfiling ahead of schedule and lose rifle because the inside of perforating gun enters fluid, cause perforating job to complete, thereby affect normally carrying out of subsequent job.
Utility model content
The utility model provide a kind of for lost perforating job perforating gun lose gun apparatus, not only can under HTHP, complete and lose rifle operation, but also can effectively avoid causing this to lose gun apparatus fulfiling ahead of schedule and lose rifle operation because the inside of perforating gun enters fluid, thereby ensure perforating job, lose carrying out smoothly of rifle operation and subsequent job.
Provide a kind of gun apparatus of losing for perforating gun according to the utility model, it comprises: cylindrical shell, is inserted with the connecting joint for affixed perforating gun in the downstream of cylindrical shell; Be located in the inner chamber of cylindrical shell and connecting joint and be fixed in the central tube of connecting joint, be located at the locking mechanism between central tube and cylindrical shell, locking mechanism comprise be socketed in slip cap on central tube and that be limited with holding tank, be located on central tube for stop slip cap towards upstream slide cut cells, and be connected to the shackle member for stoping slip cap to slide towards downstream on the inwall of cylindrical shell, downstream at slip cap is formed with the chamber that builds the pressure, and on central tube, is provided with the transfer hole for being communicated with the chamber that builds the pressure; Be arranged on the cover that breaks of the sealing transfer hole in central tube, the cover that breaks is configured to break in response to blast, thereby is communicated with central tube inner chamber and the chamber that builds the pressure.Wherein, in the time that the cover that breaks breaks, fluid will enter into the chamber that builds the pressure from transfer hole, and promote slip cap shear scissors cut unit, slip cap continues to slide towards upstream afterwards, and in the time that the upstream extremity of holding tank and the upstream extremity of shackle member align, shackle member will slide in holding tank, make central tube, connecting joint and perforating gun jointly to slide towards downstream and to depart from cylindrical shell, lose rifle operation thereby complete.
In one embodiment, on the inwall of cylindrical shell, be provided with buckling groove, and be provided with for being embedded into the projection in buckling groove at the upstream extremity of shackle member.
In one embodiment, the downstream of buckling groove is configured with slope, and the angle between slope and the bottom land of buckling groove is greater than 90 degree.
In one embodiment, shackle member is provided with the step for the upstream extremity of clamping holding tank.
In one embodiment, cut cells comprises the ring set in the periphery that is enclosed within central tube, and is radially connected to the shear pin on central tube through after ring set.
In one embodiment, the downstream of slip cap and build the pressure chamber all between central tube and connecting joint.
In one embodiment, break and overlap the easily broken portion that align and that be thinner than other position of periphery comprising with transfer hole.
In one embodiment, on the radial outside of easily broken portion, be provided with multiple depressions.
In one embodiment, be configured with U-shaped mouthful in the downstream of cylindrical shell, in U-shaped mouth, be provided with the rotation preventing device for preventing that cylindrical shell and connecting joint from relatively rotating.
In one embodiment, central tube comprises that monolithic is radially formed on the support portion of the inwall for the cylindrical shell of fitting of the upstream extremity of central tube.
In this application, term " upstream " is defined as the orientation near well head, and is defined as the orientation away from well head for " downstream ".Term " upstream extremity " and " downstream " are respectively the end near the end in orientation, upstream and orientation, close downstream.
According to the gun apparatus of losing for perforating gun of the present utility model, not only can under HTHP, complete and lose rifle operation, but also can effectively avoid causing this to lose gun apparatus fulfiling ahead of schedule and lose rifle operation because the inside of perforating gun enters fluid, thereby ensure perforating job, lose carrying out smoothly of rifle operation and subsequent job.The cover that breaks can ensure that the explosion position after blast is easily broken portion effectively, makes fluid to be entered smoothly in the chamber that builds the pressure and to be promoted slip cap by transfer hole and completes cutting operation, completes smoothly thereby guarantee to lose rifle operation.Safe and efficient according to the use of losing gun apparatus for perforating gun of the present utility model, low production cost, is convenient to practice and extension application.
Brief description of the drawings
To be described in more detail the utility model based on embodiment and with reference to accompanying drawing hereinafter.Wherein:
Fig. 1 has shown according to the structural representation of losing gun apparatus for perforating gun of the present utility model.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to actual scale.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 has shown according to of the present utility model and has lost gun apparatus 50 for perforating gun.This is lost gun apparatus 50 and comprises cylindrical shell 20.The downstream of cylindrical shell 20 is configured with U-shaped mouthful 24.The downstream of cylindrical shell 20 is inserted with connecting joint 30.In order to ensure the sealing connecting, can be provided with seal 3 in the junction of cylindrical shell 20 and connecting joint 30.Seal 3 is preferably sealing ring.Wherein, connecting joint 30 can be used for the fixing perforating gun (not shown) in its downstream.Connecting joint 30 was preferably and is threaded with being connected of perforating gun.In order to ensure sealing, can be provided with seal 3 in connecting joint 30 and the junction of perforating gun.In U-shaped mouthful 24 of cylindrical shell 20, be provided with the rotation preventing device 12 being fixed on connecting joint 30.Rotation preventing device 12 is preferably pin or bolt.Rotation preventing device 12 can stop the relative rotation of generation between cylindrical shell 20 and connecting joint 30 effectively, but can allow cylindrical shell 20 and connecting joint 30 to relatively move diametrically.
According to the utility model, this is lost gun apparatus 50 and also comprises the central tube 5 in the inner chamber that is located at cylindrical shell 20 and connecting joint 30.Central tube 5 comprises that monolithic is radially formed on the support portion 23 of the upstream extremity of central tube 5.Support portion 23 fits tightly and can slide axially with the inwall of cylindrical shell 20.Easily understand, on the binding face of support portion 23 and cylindrical shell 20, can be provided with seal 3, to guarantee thering is good sealing herein.On central tube 5, the upstream end of support portion 23 can be used for connecting ignition mechanism 2.Ignite mechanism 2 for igniting perforating gun, to complete perforating job.
In this embodiment, between central tube 5 and cylindrical shell 20, be provided with locking mechanism 25.Locking mechanism 25 comprises the slip cap in axial sliding 10 being socketed on central tube 5.In the periphery of slip cap 10, be limited with holding tank 9.In addition, locking mechanism 25 also comprises the shackle member 8 on the inwall that is connected to cylindrical shell 20.In this embodiment, on the inwall of cylindrical shell 20, can be provided with buckling groove 16, and be provided with the projection 17 that can be embedded in buckling groove 16 at the upstream extremity of shackle member 8.Can make like this shackle member 8 being clipped between slip cap 10 and cylindrical shell 20 can not move axially.
Shackle member 8 can comprise the step 18 being located in the relative side of projection 17.Step 18 staggers mutually with projection 17.Step 18 can be used for the upstream extremity of the holding tank 9 of clamping slip cap 10, makes it that slip towards downstream can not occur.In the process of sliding towards upstream at slip cap 10, when the holding tank 9 of slip cap 10 roughly aligns with shackle member 8, permission shackle member 8 is entered in holding tank 9, make projection 17 depart from buckling groove 16, thereby allow central tube 5, connecting joint 30 and perforating gun slide towards downstream and depart from cylindrical shell 20, complete and lose rifle operation.
In a preferred embodiment, the downstream of the buckling groove 16 of cylindrical shell 20 is configured with slope 19, and the angle between the bottom land of itself and buckling groove 16 is greater than 90 degree.Thus, the projection 17 that is beneficial to shackle member 8 departs from buckling groove 16 smoothly, loses rifle operation thereby be also just beneficial to.
On central tube 5 and the upstream end that is positioned at slip cap 10 be provided with cut cells 26.Cut cells 26 for example comprises the ring set 7 in the periphery that is enclosed within central tube 5, and is radially connected to the multiple shear pins 6 on central tube 5 through after ring set 7.Multiple shear pins 6 can, along circumferential isolated being distributed on central tube 5 and ring set 7, can guarantee that ring set 7 and central tube 5 can be fixed together thus.Cut off shear pin 6 in order to make slip cap 10 can promote ring set 7, can be provided with in the downstream of slip cap 10 chamber 27 that builds the pressure, and on central tube 5, be provided with the transfer hole 15 that is communicated with the chamber 27 that builds the pressure.The downstream of slip cap 10 and build the pressure chamber 27 all between central tube 5 and connecting joint 30.When fluid enters into and builds the pressure chamber 27 from transfer hole 15, slip cap 10 moves on understanding under the pressure-acting of fluid.In order to ensure that slip cap 10 slides towards upstream completing after perforating job again, can be provided with breaking of sealing transfer hole 15 and overlap 28 central tube 5 in.The cover 28 that breaks comprises the easily broken portion 21 of aliging with transfer hole 15.Break the easily broken portion 21 of cover 28 is thinner than other position of periphery, blast is occurred after preferentially explosion easily break portion 21.In a preferred embodiment, in order again to strengthen the easy explosion of easily broken portion 21, can be provided with multiple depressions 22 at the radial outside of easily broken portion 21.Not completing before perforating job, break cover 28 effectively entry deterrence excite this to lose gun apparatus 50 to the water body of the inside of perforating gun to fulfil ahead of schedule and lose rifle operation.
Below introduce according to the operating principle of losing gun apparatus 50 for perforating gun of the present utility model.Ignite after perforating gun when igniting mechanism 2, the easily broken portion 21 of the cover 28 that can explosion breaks, makes fluid to enter into and to build the pressure in chamber 27 from transfer hole 15, and the fluid of inflow will promote slip cap 10 and slide towards upstream, and promotes ring set 7 and cut off shear pin 6.Then, slip cap 10 continues to slide towards upstream, in the time that the upstream extremity of the holding tank 9 of slip cap 10 aligns with the upstream extremity of shackle member 8, the projection 17 of shackle member 8 starts to depart from gradually buckling groove 16 under 19 effects of the slope of buckling groove 16, shackle member 8 can be slipped in holding tank 9 smoothly, thereby make central tube 5, connecting joint 30 and perforating gun jointly slide towards downstream and to depart from cylindrical shell 20, complete and lose rifle operation.
Lose gun apparatus 50 according to of the present utility model for perforating gun, not only can under HTHP, complete and lose rifle operation, but also can effectively avoid causing this to lose gun apparatus 50 fulfiling ahead of schedule and lose rifle operation because the inside of perforating gun enters fluid, thereby the perforating job that ensures to know clearly, lose carrying out smoothly of rifle operation and subsequent job.Wherein, the cover 28 that breaks can ensure that the explosion position after blast is easily broken portion 21 effectively, makes fluid to be entered smoothly in the chamber 27 that builds the pressure and to be promoted slip cap 10 by transfer hole 15 and completes cutting operation, completes smoothly thereby guarantee to lose rifle operation.Safe and efficient according to the use of losing gun apparatus 50 for perforating gun of the present utility model, low production cost, is convenient to practice and extension application.
In addition, according to of the present utility model for perforating gun lose gun apparatus 50, not only can be for having lost the perforating gun after perforation, but also can for losing other device or equipment, for example, be connected to device or equipment on connecting joint 30.
Although the utility model is described with reference to preferred embodiment, in the situation that not departing from scope of the present utility model, can carries out various improvement and can replace parts wherein with equivalent it.Especially, only otherwise have structural hazard, every technical characterictic of mentioning in each embodiment all can combine in any way.The utility model is not limited to disclosed specific embodiment in literary composition, but comprises all technical schemes in the scope that falls into claim.
Claims (10)
1. for the gun apparatus of losing of perforating gun, it is characterized in that, comprising:
Cylindrical shell, is inserted with the connecting joint for affixed described perforating gun in the downstream of described cylindrical shell,
Be located in the inner chamber of described cylindrical shell and connecting joint and be fixed in the central tube of described connecting joint,
Be located at the locking mechanism between described central tube and cylindrical shell, described locking mechanism comprise be socketed in slip cap on described central tube and that be limited with holding tank, be located on described central tube for stop described slip cap towards upstream slide cut cells, and be connected to the shackle member for stoping described slip cap to slide towards downstream on the inwall of described cylindrical shell, downstream at described slip cap is formed with the chamber that builds the pressure, and on described central tube, be provided with the transfer hole for the chamber that builds the pressure described in being communicated with
Be arranged on the cover that breaks of the described transfer hole of sealing in described central tube, described in the cover that breaks be configured to break in response to blast, thereby be communicated with described central tube inner chamber and the chamber that builds the pressure.
2. the gun apparatus of losing according to claim 1, is characterized in that, is provided with buckling groove, and is provided with for being embedded into the projection in described buckling groove at the upstream extremity of described shackle member on the inwall of described cylindrical shell.
3. the gun apparatus of losing according to claim 2, is characterized in that, the downstream of described buckling groove is configured with slope, and the angle between described slope and the bottom land of buckling groove is greater than 90 degree.
4. the gun apparatus of losing according to claim 3, is characterized in that, described shackle member is provided with the step for the upstream extremity of holding tank described in clamping.
5. according to the gun apparatus of losing described in any one in claim 1 to 4, it is characterized in that, described cut cells comprises the ring set in the periphery that is enclosed within described central tube, and is radially connected to the shear pin on described central tube through after described ring set.
6. according to the gun apparatus of losing described in any one in claim 1 to 4, it is characterized in that, the downstream of described slip cap and described in build the pressure chamber all between described central tube and connecting joint.
7. according to the gun apparatus of losing described in any one in claim 1 to 4, it is characterized in that, described in the cover that breaks comprise and the easily broken portion that align and that be thinner than other position of periphery of described transfer hole.
8. the gun apparatus of losing according to claim 7, is characterized in that, on the radial outside of described easily broken portion, is provided with multiple depressions.
9. according to the gun apparatus of losing described in any one in claim 1 to 4, it is characterized in that, be configured with U-shaped mouthful in the downstream of described cylindrical shell, in described U-shaped mouth, be provided with the rotation preventing device for preventing that described cylindrical shell and connecting joint from relatively rotating.
10. according to the gun apparatus of losing described in any one in claim 1 to 4, it is characterized in that, described central tube comprises that monolithic is radially formed on the support portion of the inwall for the described cylindrical shell of fitting of the upstream extremity of described central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591924.4U CN203685145U (en) | 2013-09-24 | 2013-09-24 | Gun throwing device for perforating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591924.4U CN203685145U (en) | 2013-09-24 | 2013-09-24 | Gun throwing device for perforating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685145U true CN203685145U (en) | 2014-07-02 |
Family
ID=51007064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591924.4U Expired - Lifetime CN203685145U (en) | 2013-09-24 | 2013-09-24 | Gun throwing device for perforating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685145U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121596A (en) * | 2016-08-22 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | Gun apparatus is lost in pitching |
| CN106522869A (en) * | 2016-12-30 | 2017-03-22 | 新疆能新科油气技术有限公司 | Shaft cast-plugging device and mounting method thereof |
| CN106894795A (en) * | 2015-12-21 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of perforating gun release nipple |
-
2013
- 2013-09-24 CN CN201320591924.4U patent/CN203685145U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894795A (en) * | 2015-12-21 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of perforating gun release nipple |
| CN106121596A (en) * | 2016-08-22 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | Gun apparatus is lost in pitching |
| CN106522869A (en) * | 2016-12-30 | 2017-03-22 | 新疆能新科油气技术有限公司 | Shaft cast-plugging device and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |