CN2675858Y - Perforator buttsplice with centralizing function - Google Patents
Perforator buttsplice with centralizing function Download PDFInfo
- Publication number
- CN2675858Y CN2675858Y CN 200420018480 CN200420018480U CN2675858Y CN 2675858 Y CN2675858 Y CN 2675858Y CN 200420018480 CN200420018480 CN 200420018480 CN 200420018480 U CN200420018480 U CN 200420018480U CN 2675858 Y CN2675858 Y CN 2675858Y
- Authority
- CN
- China
- Prior art keywords
- perforator
- centralizing
- blind hole
- connect
- wiper block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a perforator butt splice with centralizing function. The non threaded part of the butt splice is provided with a threaded blind hole, and the blind hole is provided with a centralizing mechanism; the centralizing mechanism is composed of a centralizing block, a screw nut and an elastic component. The screw nut is screwed on the blind hole, the centralizing block is arranged on the screw nut, the elastic component supports the centralizing block in the blind hole, and therefore, the centralizing block can slide along the axial line of the screw nut and extends outward along the radial direction of the butt splice; the top of the centralizing block is a spherical surface or conical surface structure; the utility model can be connected with a perforating gun in a sleeve pipe and has the centralizing function. The perforator butt splice with the centralizing function ensures that the position of a perforator is centered in the sleeve pipe. The perforation diameter is uniform, the perforation effect is good, and the perforator can not be seized in the sleeve pipe.
Description
Technical field:
The utility model relates to the special-purpose member of oil well logging perforation device, specifically is to connect in a kind of perforator with centralizing function.
Background technology:
Be connected in the perforator between two perforating guns and play anastomosis.In perforating oil gas well, owing between perforator and the sleeve pipe certain clearance is arranged, it is placed in the middle to make that perforator is difficult in sleeve pipe, gap between perforator and the sleeve pipe is inhomogeneous, make the perforation diameter and wear inhomogeneously deeply, but also can produce bigger burr, influence perforating effect.At present, only connect in the used perforator and between two perforating guns, play anastomosis, do not have the function of setting upright.
Summary of the invention:
Of the present utility model is that pin the problems referred to above provide in a kind of perforator with centralizing function and connect, and connects in this to have centralizing function, make perforator in sleeve pipe placed in the middle between the position, improve perforating effect.
The technical solution of the utility model is: the non-threaded part that connects in perforator is processed threaded blind hole, and righting mechanism is installed in the blind hole.
Righting mechanism is made up of nut, wiper block, elasticity component, and nut is tightened on the blind hole, and wiper block is contained on the nut, and the elasticity component supports wiper block in blind hole, make wiper block can slide along the axis of nut, along in connect radially outward and stretch out.
Righting mechanism is arranged on the non-threaded part that connects in the perforator, wiper block the support lower edge of elasticity component nut shaft to, along in connect and radially outward stretch out certain length, on each phase place the summit of wiper block with in connect on the coaxial same face of cylinder, and the diameter on this face of cylinder is approximately equal with casing inner diameter, under the support of wiper block, make perforator placed in the middle in sleeve pipe, overcome the perforation diameter that does not produce between two parties owing to perforator and worn the dark inhomogeneous and interior big phenomenon of burr of sleeve pipe.In addition, the top of wiper block (with the internal surface of sleeve pipe contact surface) is sphere or cone structure, and the elasticity component can provide enough elastic force, makes righting mechanism play centralizing function.External force on acting on wiper block is during greater than certain numerical value, and wiper block can push the elasticity component and produce retraction, and perforator can be not stuck in sleeve pipe.
Characteristics that the utlity model has and beneficial effect:
The utility model not only can connect perforating gun in sleeve pipe, but also has centralizing function, guarantees that perforator position in sleeve pipe is placed in the middle, and the perforation diameter is even, and perforating effect is good, and perforator can be not stuck in sleeve pipe.
Description of drawings:
Fig. 1, Fig. 2 are structural representations of the present utility model;
Fig. 3 is the non-threaded meropia hole site schematic diagram that connects in the utility model;
Fig. 4 is a scheme of installation of the present utility model.
Among the figure: connect in 1 wiper block, 2 nuts, the 3 elasticity components, 4,5 sleeve pipes, 6 perforating guns.
The specific embodiment:
Fig. 1, Fig. 2 provide the structural representation that connects in the perforator with centralizing function, and according among the figure shown in the structure, righting mechanism is made up of wiper block 1, nut 2, elasticity component 3; 3-6 the blind hole of non-threaded part processing that in perforator, connects, blind hole in connect 4 circumferentially evenly distribution of non-threaded part, Fig. 3 is that the phase place of 4 blind holes is provided with schematic diagram, 3 blind holes also are the best settings in the technical program.Blind hole is processed with screw thread, and nut 2 is tightened on the blind hole, and wiper block 1 is contained on the nut 2, and the top of wiper block 1 (with the internal surface of sleeve pipe contact surface) is sphere or cone structure.Elasticity component 3 is a cluster spring, can be single spring or rubber also, is placed in the blind hole, and elasticity component 3 supports wiper blocks 1, make wiper block can along nut 2 axially, in connect 4 radially outward stretch out.
Fig. 4 provides scheme of installation of the present utility model, and the top of wiper block 1 contacts with sleeve pipe 5 inwalls, wiper block 1 under the effect of elasticity component 3, can slide along the axis of nut 2, along in connect 4 and radially outward stretch out, in connect 4 two ends thread connection perforating guns 6.
Claims (3)
1, connect in a kind of perforator with centralizing function, in connect (4) two ends thread connection perforating guns (6), it is characterized in that: in connect 3-6 the threaded blind hole of non-threaded part processing of (4), righting mechanism is installed in the blind hole; Described righting mechanism is made up of wiper block (1), nut (2), elasticity component (3), nut (2) is tightened on the blind hole, wiper block (1) is contained on the nut (2), elasticity component (3) supports wiper block (1) in blind hole, wiper block (1) along the axis of nut (2) slide, along in connect radially outward stretching out of (4).
2, according to connecing in the described perforator with centralizing function of claim 1, it is characterized in that: the top of wiper block (1) is sphere or cone structure.
3, connect in the perforator with centralizing function according to claim 1, it is characterized in that: blind hole in connect (4) non-threaded part circumferentially evenly distribute, the phase place that is the best with 3-4 blind hole designs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018480 CN2675858Y (en) | 2004-02-18 | 2004-02-18 | Perforator buttsplice with centralizing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018480 CN2675858Y (en) | 2004-02-18 | 2004-02-18 | Perforator buttsplice with centralizing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2675858Y true CN2675858Y (en) | 2005-02-02 |
Family
ID=34483066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420018480 Expired - Fee Related CN2675858Y (en) | 2004-02-18 | 2004-02-18 | Perforator buttsplice with centralizing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2675858Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493791A (en) * | 2007-12-14 | 2012-06-13 | 中国石油大学(北京) | Abrasive material jet injection device |
| CN103806880A (en) * | 2014-03-04 | 2014-05-21 | 大庆华翰邦石油装备制造有限公司 | Damped radially-equidistant centering and perforating device |
| CN103993861A (en) * | 2014-05-28 | 2014-08-20 | 大庆华翰邦石油装备制造有限公司 | Device for achieving resistance decrement and centering in peripheral direction |
| CN110984938A (en) * | 2019-12-23 | 2020-04-10 | 中国石油大学(华东) | Novel flow-guiding thermosensitive perforating hole |
-
2004
- 2004-02-18 CN CN 200420018480 patent/CN2675858Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493791A (en) * | 2007-12-14 | 2012-06-13 | 中国石油大学(北京) | Abrasive material jet injection device |
| CN103806880A (en) * | 2014-03-04 | 2014-05-21 | 大庆华翰邦石油装备制造有限公司 | Damped radially-equidistant centering and perforating device |
| CN103993861A (en) * | 2014-05-28 | 2014-08-20 | 大庆华翰邦石油装备制造有限公司 | Device for achieving resistance decrement and centering in peripheral direction |
| CN110984938A (en) * | 2019-12-23 | 2020-04-10 | 中国石油大学(华东) | Novel flow-guiding thermosensitive perforating hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050202 |