CN103899265A - Large particle coring gun - Google Patents
Large particle coring gun Download PDFInfo
- Publication number
- CN103899265A CN103899265A CN201410114387.3A CN201410114387A CN103899265A CN 103899265 A CN103899265 A CN 103899265A CN 201410114387 A CN201410114387 A CN 201410114387A CN 103899265 A CN103899265 A CN 103899265A
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- rifle body
- piston
- coring
- screw
- cylinder
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Abstract
The invention provides a large particle coring gun which comprises a gun body. A middle connector, a large cap, an upper connector and a lifting cap are connected with the gun body, and a binding post assembly, a selection emitter, an ignition transformer and an aviation plug are arranged in an inner cavity formed by the upper connector, the large cap and the middle connector. The middle connector is hermetically connected with the gun body which is internally provided with a passage, ignition leads leading from the aviation plug are arranged in the passage, each ignition lead is correspondingly connected to a one-way soldering terminal in each corresponding trajectory assembly, and the plurality of trajectory assemblies are radially arranged on the lower portion of the gun body. Owing to combination of a piston ring and a seal ring, friction force between a coring barrel and the gun body is decreased while combustion energy of gunpowder is guaranteed. Further, by means of design of a damper cylinder, reverse initiative damping of the coring barrel is completed under the action of residual energy of the gunpowder. The large particle coring gun has the advantages of large coring force, high recovery rate and long service life and is beneficial to popularization and utilization.
Description
Technical field
The present invention relates to geological logging apparatus field, be specifically related to bulky grain and get core rifle.
Background technology
Along with the fast development of drilling technology and drilling technology, bit speed is significantly improved, although this has shortened drilling period greatly, but bring more difficulty to geological logging, require side-wall coring homework precision high, activity duration is short, rock core is contaminated little, side-wall coring is divided into drilling type and impacting type, impacting type is exactly, with the expanding gas that powder burning produces, coring tube is pushed to stratum, obtain the rock core on object edge, sealing and the friction factor of coring tube in trajectory is a contrary contradiction, seal bad, the expanding gas utilization rate of gunpowder is low, coring tube impact is inadequate, when gunpowder explosion, rifle body itself is hit and produces distortion and vibration, also affect the movement locus of coring tube simultaneously, coring tube and trajectory frictional force consume the energy of gunpowder greatly on the contrary, the height of the core-taking rate of side-wall coring equipment depends on that coring tube embeds the integrality on stratum and the application life of rifle body itself.
Summary of the invention
Filter for the core of getting that improves well bore sidewall core taker, extend the application life of rifle body, the present invention proposes bulky grain and gets core rifle, addresses the above problem by utilizing the anti-vibration of gunpowder residual gas and piston ring being set on coring tube.
Technical scheme of the present invention is: bulky grain is got core rifle and comprised rifle body, rifle body is connected with center tap, unwarranted charge, top connection, carries cap, in the inner chamber of top connection, unwarranted charge and center tap composition, be equipped with prap assembly, selector, ignition transformer and aviation plug, the airtight connection rifle of center tap body, in rifle body, have passage, in passage, be furnished with the harness drawing from aviation plug, every harness correspondence is connected to the unidirectional weld tabs in the trajectory assembly of each correspondence, and rifle body bottom is radially equipped with some trajectory assemblies, trajectory assembly is made up of coring tube and igniting bolt two parts, rifle body bottom cylinder radially respectively has a counterbore along the upper and lower symmetry of cylindrical center, between two counterbores, have through hole, through hole is built-in with igniting screw, the counterbore matched in clearance of igniting screw upper end connects piston, the fitting face of piston and rifle body starts to have successively three road annular grooves from bottom, in annular groove, be equipped with successively two piston rings and a sealing ring, piston center has through hole whorl and connects bleed screw, between bleed screw nut and the stepped hole of piston center hole, be equipped with sealing ring, piston external screw thread connects coring tube, on coring tube tube wall, have spoil disposal slurry hole, between the ignition cap of igniting screw and bolt cylinder and rifle body, be equipped with respectively " O " RunddichtringO and felt pad, between the nut of igniting bolt and rifle body, be equipped with respectively epoxy resin pad and unidirectional weld tabs, the counterbore internal thread of the nut outside of igniting screw connects seal cover, and the counterbore of seal cover inside is built-in with rubber cap, between seal cover and rifle body, is provided with seal, the bottom counterbore of igniting screw and piston is built-in with gunpowder.
Such scheme is more than the sealing ring position of piston topmost, on the inner cylindrical wall of the rifle body coordinating with it, having two by-pass prots is communicated with the reciprocal rifle body of coring tube bottom, by-pass prot has two-stage stepped hole with the end that rifle body bottom is communicated with, be equipped with respectively damper cylinder and door, between damper cylinder and hole wall, be provided with seal, damper cylinder bottom has axle journal to stretch out door and concordant with door, between the axle journal step of damper cylinder and door, be provided with spring, door be connected with rifle body bolt and door surface concordant with rifle external surface.Coring tube both sides has be threaded seat cylinder of screwed hole, and a seat cylinder endoporus has wire rope assembly to pass, and wire rope assembly two is fixed with a steel cylinder that is greater than seat cylinder endoporus.
The present invention has following beneficial effect: owing to having adopted the design of piston ring and sealing ring, reduced the frictional force between piston and rifle body in the past, ensured to make full use of the energy of gunpowder simultaneously, by the design of by-pass prot and damper cylinder, in being lighted backed off after random rifle body 9 by gunpowder at coring tube, when coring tube is soon deviate from rifle body and is got to maximal rate, the remaining energy of powder burning has not had other effect, can only open flow in well, the design utilizes this part dump energy to promote the reciprocal damper cylinder of coring tube by by-pass prot, when coring tube is squeezed into stratum, damper cylinder is ejected on the borehole wall of getting to the coring tube back side, alleviate distortion and vibration that gunpowder explosion promotion coring tube and rifle body itself produce, the application life that is conducive to keep the movement locus of coring tube and extends rifle body and corer miscellaneous part, belong to active damping.
In sum, this corer is by adopting piston ring and sealing ring combination, reduce the burning capacity that frictional force between coring tube and rifle body has ensured gunpowder simultaneously, by the design of damper cylinder, utilize the dump energy of gunpowder to carry out reciprocal active vibration damping to coring tube, have the core of getting strength large, the rate of recovery is high, the feature of long service life, favourable promoting the use of.
brief description of the drawings:
Accompanying drawing 1 is assembling schematic diagram of the present invention;
Accompanying drawing 2 is structural representations of trajectory assembly of the present invention.
In figure, 1-carries cap, 2-top connection, 3-prap assembly, 4-selector, 5-unwarranted charge, 6-center tap, 7-ignition transformer, 8-aviation plug, 9-rifle body, 10-trajectory assembly, 11-coring tube, 12-seat cylinder, 13-wire rope assembly, 14-piston ring, 15-by-pass prot, 16-felt pad, 17-damper cylinder, 18-door, 19-seal cover, 20-rubber cap, the 21-screw of lighting a fire, the unidirectional weld tabs of 22-, 23-epoxy resin pad, 24-" O " sealing ring, 25-gunpowder, 26-bleed screw, 27-piston, 28-spoil disposal slurry hole.
detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
By Fig. 1 in conjunction with shown in Fig. 2, bulky grain is got core rifle and is comprised rifle body 9, rifle body 9 is connected with center tap 6, unwarranted charge 5, top connection 2, carry cap 1, top connection 2, in the inner chamber that unwarranted charge 5 and center tap 6 form, be equipped with prap assembly 3, selector 4, the necessary parts of the side-wall corings such as ignition transformer 7 and aviation plug 8, the airtight connection rifle of center tap 6 body 9, in rifle body 9, have passage, in passage, be furnished with the harness drawing from aviation plug 8, every harness correspondence is connected to the unidirectional weld tabs 22 in the trajectory assembly 10 of each correspondence, rifle body 9 bottoms are radially equipped with some trajectory assemblies 10, quantity basis down-hole structure and the well logging of trajectory assembly 10 need to arrange,
Trajectory assembly 10 is made up of coring tube 11 and igniting screw 21 two parts, rifle body 9 bottoms cylinder radially respectively has a counterbore along the upper and lower symmetry of cylindrical center, between two counterbores, have through hole, through hole is built-in with igniting screw 21, the counterbore matched in clearance of igniting screw 21 upper ends connects piston 27, piston 27 starts to have successively three road annular grooves with the fitting face of rifle body 9 from bottom, in annular groove, be equipped with successively two piston rings 14 and a sealing ring, the otch of two piston rings 14 is staggeredly arranged, utilize piston ring 14 to replace current sealing ring to keep out gunpowder 25 explosion times and produce impact force, break through after twice piston ring 14 at gunpowder 25, seal by one sealing ring the gas that gunpowder expansion produces, owing to having adopted the design of piston ring 14 and sealing ring, reduce the frictional force between piston 27 and rifle body 9 in the past, ensured to make full use of the energy of gunpowder simultaneously, piston 27 centers have through hole whorl and connect bleed screw 26, between the stepped hole of bleed screw 26 nuts and piston 27 centre bores, be equipped with sealing ring, piston 27 external screw threads connect coring tube, adopt coring tube 11 and piston 27 separate structures, wear and tear separately damaged in, can change body separately and can all not change, save material, reduce costs, on coring tube 11 tube walls, have spoil disposal slurry hole 28 entering for reducing the resistance simultaneous adaptation rock core of coring tube 11,
Between the ignition cap of igniting screw 21 and bolt cylinder and rifle body, be equipped with respectively " O " RunddichtringO 24 and felt pad 16, between the nut of igniting bolt 21 and rifle body 9, be equipped with respectively epoxy resin pad 23 and unidirectional weld tabs 22; The counterbore internal thread of the nut outside of igniting screw 21 connects seal cover 19, and the counterbore of seal cover 19 inside is built-in with rubber cap 20, between seal cover 19 and rifle body 9, is provided with seal, and said structure is mainly the insulativity of lighting a fire between screw and rifle body in order to strengthen; The bottom counterbore of igniting screw 21 and piston 27 is built-in with gunpowder 25.
More than the sealing ring position of piston 27 topmosts, on the inner cylindrical wall of the rifle body 9 coordinating with it, having two by-pass prots 15 is communicated with the reciprocal rifle body of coring tube 11 9 bottoms, by-pass prot 15 has two-stage stepped hole with the end that rifle body 9 bottoms are communicated with, be equipped with respectively damper cylinder 17 and door 18, between damper cylinder 17 and hole wall, be provided with seal, damper cylinder 17 bottoms have axle journal to stretch out door 18 and concordant with door 18, between the axle journal step of damper cylinder 17 and door 18, be provided with spring, door 18 be connected with rifle body 9 bolts and door 18 surface concordant with rifle body 9 external surfaces.
By the design of by-pass prot 15 and damper cylinder, when coring tube 11 is lighted backed off after random rifle body 9 by gunpowder 25, when coring tube 11 is soon deviate from rifle body 9 and is got to maximal rate, the gunpowder 25 remaining energy that burns has not had other effect, can only open flow in well, the design utilizes this part dump energy to promote the reciprocal damper cylinder 17 of coring tube 11 by by-pass prot 15, when coring tube 11 is squeezed into stratum, damper cylinder 17 is ejected on the borehole wall of getting to coring tube 11 back sides, alleviate gunpowder 25 blasts and promote coring tube 11 and distortion and the vibration producing of rifle body 9 own, the application life that is conducive to keep the movement locus of coring tube 11 and extends rifle body 9 and corer miscellaneous part, belong to active damping.Coring tube 11 both sides have the screwed hole seat cylinder 12 that is threaded, and seat cylinder 12 endoporus have wire rope assembly 13 to pass, and wire rope assembly 13 two are fixed with a steel cylinder that is greater than seat cylinder 12 endoporus, and wire rope is used for reclaiming coring tube 11.
Claims (3)
1. a bulky grain is got core rifle, comprise rifle body (9), it is characterized in that: rifle body (9) is connected with center tap (6) in turn, unwarranted charge (5), top connection (2), carry cap (1), top connection (2), in the inner chamber of unwarranted charge (5) and center tap (6) composition, be equipped with prap assembly (3), selector (4), ignition transformer (7) and aviation plug (8), center tap (6) airtight connection rifle body (9), rifle body has passage in (9), in passage, be furnished with the harness drawing from aviation plug (8), every harness correspondence is connected to the interior unidirectional weld tabs (22) of trajectory assembly (10) of each correspondence, rifle body (9) bottom is radially equipped with some trajectory assemblies (10),
Trajectory assembly (10) is made up of coring tube (11) and igniting screw (21) two parts, rifle body (9) bottom cylinder radially respectively has a counterbore along the upper and lower symmetry of cylindrical center, between two counterbores, have through hole, through hole is built-in with igniting screw (21), the counterbore matched in clearance of igniting screw (21) upper end connects piston (27), piston (27) starts to have successively three road annular grooves with the fitting face of rifle body (9) from bottom, in annular groove, be equipped with successively two piston rings (14) and a sealing ring, piston (27) center has through hole whorl and connects bleed screw (26), between the stepped hole of bleed screw (26) nut and piston (27) centre bore, be equipped with sealing ring, piston (27) external screw thread connects coring tube, on coring tube (11) tube wall, have spoil disposal slurry hole (28),
Between the ignition cap of igniting screw (21) and bolt cylinder and rifle body, be equipped with respectively " O " RunddichtringO (24) and felt pad (16), between the nut of igniting bolt (21) and rifle body (9), be equipped with respectively epoxy resin pad (23) and unidirectional weld tabs (22); The counterbore internal thread of the nut outside of igniting screw (21) connects seal cover (19), the inner counterbore of seal cover (19) is built-in with rubber cap (20), between seal cover (19) and rifle body (9), is provided with seal;
In the bottom counterbore of igniting screw (21) and piston (27), be equipped with respectively gunpowder (25).
2. bulky grain according to claim 1 is got core rifle, it is characterized in that: more than the sealing ring position of piston (27) topmost, on the inner cylindrical wall of the rifle body (9) coordinating with it, having two by-pass prots (15) is communicated with the reciprocal rifle body of coring tube (11) (9) bottom, by-pass prot (15) has two-stage stepped hole with the end that rifle body (9) bottom is communicated with, be equipped with respectively damper cylinder (17) and door (18), between damper cylinder (17) and hole wall, be provided with seal, damper cylinder (17) bottom has axle journal to stretch out door (18) and concordant with door (18), between the axle journal step of damper cylinder (17) and door (18), be provided with spring, door (18) be connected with rifle body (9) bolt and door (18) surface concordant with rifle body (9) external surface.
3. bulky grain according to claim 2 is got core rifle, it is characterized in that: coring tube (11) both sides has the screwed hole seat cylinder (12) that is threaded, seat cylinder (12) endoporus has wire rope assembly (13) to pass, and wire rope assembly (13) two is fixed with the steel cylinder that is greater than seat cylinder (12) endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114387.3A CN103899265B (en) | 2014-03-26 | 2014-03-26 | Bulky grain gets core rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114387.3A CN103899265B (en) | 2014-03-26 | 2014-03-26 | Bulky grain gets core rifle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899265A true CN103899265A (en) | 2014-07-02 |
| CN103899265B CN103899265B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114387.3A Expired - Fee Related CN103899265B (en) | 2014-03-26 | 2014-03-26 | Bulky grain gets core rifle |
Country Status (1)
| Country | Link |
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| CN (1) | CN103899265B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223944A (en) * | 2016-08-27 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN109025877A (en) * | 2018-09-06 | 2018-12-18 | 中国海洋石油集团有限公司 | A kind of storage heart cylinder |
| CN111963089A (en) * | 2020-08-14 | 2020-11-20 | 河北科力石油机械有限公司 | Bivalve combination formula core barrel convenient to heat treatment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031536A (en) * | 1990-08-30 | 1991-07-16 | Halliburton Logging Services, Inc. | High temperature and pressure igniter for downhole percussion coring guns |
| CN201650177U (en) * | 2010-01-13 | 2010-11-24 | 王连生 | Shaft wall coring gun |
| CN202914003U (en) * | 2012-10-08 | 2013-05-01 | 丁 | Automatic resetting multi-functional selector |
| US20130228066A1 (en) * | 2012-03-01 | 2013-09-05 | Baker Hughes Incorporated | Resistor-based Ignition System for a Core Gun |
| CN203271647U (en) * | 2012-10-08 | 2013-11-06 | 丁 | Combined type coring device |
-
2014
- 2014-03-26 CN CN201410114387.3A patent/CN103899265B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031536A (en) * | 1990-08-30 | 1991-07-16 | Halliburton Logging Services, Inc. | High temperature and pressure igniter for downhole percussion coring guns |
| CN201650177U (en) * | 2010-01-13 | 2010-11-24 | 王连生 | Shaft wall coring gun |
| US20130228066A1 (en) * | 2012-03-01 | 2013-09-05 | Baker Hughes Incorporated | Resistor-based Ignition System for a Core Gun |
| CN202914003U (en) * | 2012-10-08 | 2013-05-01 | 丁 | Automatic resetting multi-functional selector |
| CN203271647U (en) * | 2012-10-08 | 2013-11-06 | 丁 | Combined type coring device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223944A (en) * | 2016-08-27 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN106223944B (en) * | 2016-08-27 | 2019-07-09 | 中国石油集团渤海钻探工程有限公司 | Modular coring rifle |
| CN109025877A (en) * | 2018-09-06 | 2018-12-18 | 中国海洋石油集团有限公司 | A kind of storage heart cylinder |
| CN111963089A (en) * | 2020-08-14 | 2020-11-20 | 河北科力石油机械有限公司 | Bivalve combination formula core barrel convenient to heat treatment |
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| Publication number | Publication date |
|---|---|
| CN103899265B (en) | 2016-03-23 |
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Effective date of registration: 20160302 Address after: Ranghulu District in Heilongjiang province Daqing City 163000 town of La grand a tun Applicant after: Daqing Xuye Machinery Equipment Co.,Ltd. Address before: 163000 Heilongjiang Province, Daqing City Ranghulu District B building 506 Residence Internazionale. Applicant before: Du Yingbin |
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| 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: 20160323 Termination date: 20170326 |