CN204171961U - A kind of disassembling fixture of downhole instrument sealing obturating plug - Google Patents
A kind of disassembling fixture of downhole instrument sealing obturating plug Download PDFInfo
- Publication number
- CN204171961U CN204171961U CN201420604957.2U CN201420604957U CN204171961U CN 204171961 U CN204171961 U CN 204171961U CN 201420604957 U CN201420604957 U CN 201420604957U CN 204171961 U CN204171961 U CN 204171961U
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- disassembling fixture
- obturating plug
- downhole instrument
- sealing
- screw thread
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Abstract
The utility model discloses the disassembling fixture of a kind of downhole instrument sealing obturating plug, comprise the disassembling fixture (3) for being connected with the drawing screw thread (2) sealed on obturating plug (1), the shape of described disassembling fixture (3) is circular tube shaped, the endoporus of pipe is provided with internal thread (4), and the cylindrical of pipe is provided with spanner flat (8).The utility model not only has the advantage that disassembling fixture structure is simple, easy to use, cost of manufacture is low, and can also effectively prevent from the problem of wire-break being occurred when dismantling sealing obturating plug.Therefore the utility model well solves the deficiencies in the prior art.
Description
Technical field
the utility model relate to a kind of downhole instrument sealing obturating plug disassembling fixture, belong to downhole instrument electrical connection technical field.
Background technology
in oilfield development process, often need to use the data of downhole instrument to down-hole to measure, the communication between downhole instrument with ground is connected by wire, and the reliability that wire connects directly affects the accuracy of measurement data.General Instrument often adopts plug, socket connects.Due to downhole instrument work under bad environment, temperature is high, and pressure is large, therefore often can occur in the junction of plugs and sockets that loose contact such as even to be broken at the problem, affect certainty of measurement, even cannot measure.In order to overcome the problems referred to above, the existing plugs and sockets connected mode adopting the sealing-plug connected mode can bearing HTHP to substitute General Instrument more.Sealing-plug connected mode be wire is welded with sealing-plug after again by sealing-plug with sealing obturating plug be connected, and then sealing obturating plug is axially pressed in the bore of instrument outer tube end, the wire strand situation together that overcoming is threaded causes, can not by disconnected for wire strand.Because downhole instrument is higher to seal request, often adopt tight fit between sealing obturating plug and bore, and be provided with one group of sealing ring.So sealing obturating plug could be extracted by needs more energetically from bore, extract dynamics bad grasp when sealing obturating plug, often because extracting instantaneously, inertia is larger wire-break in meeting.Therefore, the dismounting mode of existing downhole instrument sealing obturating plug or not ideal enough, can not meet the needs of use.
Utility model content
the purpose of this utility model is, provides a kind of downhole instrument to seal the disassembling fixture of obturating plug, during to solve dismounting sealing obturating plug, easily by the technical problem of wire-break, thus overcomes the deficiencies in the prior art.
the technical solution of the utility model:
the disassembling fixture of a kind of downhole instrument sealing obturating plug of the present utility model is, comprise the disassembling fixture for being connected with the drawing threaded engagement on sealing obturating plug, the shape of this disassembling fixture is circular tube shaped, and the endoporus of pipe is provided with internal thread, and the cylindrical of pipe is provided with spanner flat.
in aforesaid detachment frock, described internal thread is connected with the drawing threaded engagement on sealing obturating plug, and internal thread length is greater than the length that sealing obturating plug pull-up pulls out screw thread.
in aforesaid detachment frock, the outside diameter of described disassembling fixture is greater than the endoporus aperture of downhole instrument outer tube; Disassembling fixture one end is provided with annular boss, and the external diameter of annular boss is less than the endoporus aperture of downhole instrument outer tube; The endoporus of annular boss is provided with and internal thread continuous print screw thread.
in aforesaid detachment frock, the height of described annular boss is greater than 5mm.
in aforesaid detachment frock, described disassembling fixture is steelwork.
owing to have employed technique scheme, the utility model converts the axially-movable of sealing obturating plug to by the rotary motion of disassembling fixture, can slowly be extracted from the bore downhole instrument outer tube by sealing obturating plug slowly.When avoiding occurring manual extracting, depart from the moment of instrument outer tube bore at sealing obturating plug, cause because inertia cannot stop the problem breaking wire.So compared with prior art, the utility model not only has the advantage that disassembling fixture structure is simple, easy to use, cost of manufacture is low to the utility model, and can also effectively prevent from when dismantling sealing obturating plug, the problem of wire-break being occurred.Therefore the utility model well solves the deficiencies in the prior art.
Accompanying drawing explanation
fig. 1 is sealing-plug connected mode schematic diagram;
fig. 2 is the method schematic diagram of the utility model dismounting sealing obturating plug;
fig. 3 is the structural representation of the utility model dismounting sealing obturating plug disassembling fixture used.
being labeled as in accompanying drawing: 1-seals obturating plug, 2-drawing screw thread, 3-disassembling fixture, 4-internal thread, 5-downhole instrument outer tube, 6-bore, 7-wire, 8-spanner flat, 9-annular boss, 11-sealing-plug, 12-sealing ring.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
embodiment of the present utility model: the utility model is constructed by the method for dismounting of following a kind of downhole instrument sealing obturating plug, as shown in Figure 2: the method processes one section of drawing screw thread 2 in one end of sealing obturating plug 1, the rotary motion of disassembling fixture 3 is converted to the linear relative movement between screw thread pair by the screw thread pair consisted of the internal thread 4 on disassembling fixture 3 and drawing screw thread 2, sealing obturating plug 1 is slowly extracted from the bore 6 of downhole instrument outer tube 5 end, to prevent the moment that sealing-plug seat 1 is departing from bore 6, wire 7 is broken.As shown in Figure 3, its shape is tubulose to disassembling fixture 3, and the endoporus of disassembling fixture 3 is provided with the internal thread 4 be connected with drawing screw thread 2; The cylindrical of disassembling fixture 3 is milled with spanner flat 8, so that rotate disassembling fixture 3 by spanner.As shown in Figure 3, the outside diameter of disassembling fixture 3 is greater than the endoporus aperture of downhole instrument outer tube 5, and disassembling fixture 3 one end is provided with annular boss 9, and the external diameter of annular boss 9 is less than the endoporus aperture of downhole instrument outer tube 5.Sealing obturating plug 1, for being not less than 5mm, is extracted to guarantee to have between screw thread pair enough pulling force by the height of annular boss 9 from the bore 6 downhole instrument outer tube 5.During dismounting sealing obturating plug, the annular boss 9 of disassembling fixture 3 one end is stretched into downhole instrument outer tube 5 end endoporus, and the internal thread 4 on disassembling fixture 3 and the drawing screw thread 2 on sealing obturating plug 1 are spun; When being rotated further disassembling fixture 3 after the end face and downhole instrument outer tube 5 end contact of disassembling fixture 3, end face due to downhole instrument outer tube 5 limits moving axially of disassembling fixture 3, by the relative motion between the drawing screw thread 2 on the internal thread 4 on disassembling fixture 3 and sealing obturating plug 1, sealing obturating plug 1 is slowly extracted from the bore 6 downhole instrument outer tube 5.
of the present utility model a kind of downhole instrument for said method seals the structural representation of the disassembling fixture of obturating plug as shown in Figure 3, and the shape of this disassembling fixture is circular tube shaped, and the endoporus of pipe is provided with internal thread 4, and the cylindrical of pipe is provided with spanner flat 8.Internal thread 4 is connected with the drawing screw thread 2 on sealing obturating plug 1, and internal thread 4 length is greater than the length of drawing screw thread 2 on sealing obturating plug 1.The outside diameter of disassembling fixture 3 is greater than the endoporus aperture of downhole instrument outer tube 5; Disassembling fixture 3 one end is provided with annular boss 9, and the external diameter of annular boss 9 is less than the endoporus aperture of downhole instrument outer tube 5; The endoporus of annular boss 9 is provided with and internal thread 4 continuous print screw thread.The height of annular boss 9 is greater than 5mm.Disassembling fixture 3 is steelwork.
fig. 1 is sealing-plug connected mode schematic diagram, sealing-plug 11 is connected with sealing obturating plug 1 after welding with sealing-plug 11 by wire 7 again, and then sealing obturating plug 1 is axially pressed in the bore 6 of downhole instrument outer tube 5 end, owing to being axial press-in, do not rotate in process of press in, wire can not twist together, and produces the situation of broken string.Because downhole instrument is higher to seal request, often adopt tight fit between sealing obturating plug 1 and bore 6, and be provided with one group of sealing ring 12.So sealing obturating plug 1 could be extracted by needs more energetically from bore 6, extract dynamics bad grasp when sealing obturating plug 1, often because extracting, inertia is larger instantaneously breaks wire 7 in meeting.Disassembling fixture 3 of the present utility model be exactly in order to solve extract sealing obturating plug 1 time dynamics bad grasp problem, the rotary motion of disassembling fixture 3 is converted to the linear relative movement between screw thread pair by the screw thread pair consisted of the internal thread 4 on disassembling fixture 3 and drawing screw thread 2, sealing obturating plug 1 is slowly extracted from the bore 6 of downhole instrument outer tube 5 end, to prevent the moment that sealing-plug seat 1 is departing from bore 6, wire 7 is broken.
Claims (5)
1. the disassembling fixture of a downhole instrument sealing obturating plug, comprise the disassembling fixture (3) for being connected with the drawing screw thread (2) sealed on obturating plug (1), it is characterized in that: the shape of described disassembling fixture (3) is circular tube shaped, the endoporus of pipe is provided with internal thread (4), and the cylindrical of pipe is provided with spanner flat (8).
2. downhole instrument seals the disassembling fixture of obturating plug according to claim 1, it is characterized in that: described internal thread (4) is connected with the drawing screw thread (2) in sealing obturating plug (1), and internal thread (4) length is greater than the length of the upper drawing screw thread (2) of sealing obturating plug (1).
3. downhole instrument seals the disassembling fixture of obturating plug according to claim 2, it is characterized in that: the outside diameter of described disassembling fixture (3) is greater than the endoporus aperture of downhole instrument outer tube (5); Disassembling fixture (3) one end is provided with annular boss (9), and the external diameter of annular boss (9) is less than the endoporus aperture of downhole instrument outer tube (5); The endoporus of annular boss (9) is provided with and internal thread (4) continuous print screw thread.
4. downhole instrument seals the disassembling fixture of obturating plug according to claim 3, it is characterized in that: the height of described annular boss (9) is greater than 5mm.
5. downhole instrument seals the disassembling fixture of obturating plug according to claim 4, it is characterized in that: described disassembling fixture (3) is steelwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604957.2U CN204171961U (en) | 2014-10-20 | 2014-10-20 | A kind of disassembling fixture of downhole instrument sealing obturating plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604957.2U CN204171961U (en) | 2014-10-20 | 2014-10-20 | A kind of disassembling fixture of downhole instrument sealing obturating plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204171961U true CN204171961U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420604957.2U Active CN204171961U (en) | 2014-10-20 | 2014-10-20 | A kind of disassembling fixture of downhole instrument sealing obturating plug |
Country Status (1)
| Country | Link |
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| CN (1) | CN204171961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325432A (en) * | 2014-10-20 | 2015-02-04 | 贵州航天凯山石油仪器有限公司 | Disassembling method and disassembling tooling for down-hole instrument sealing plug seat |
| CN109877765A (en) * | 2019-03-28 | 2019-06-14 | 江苏三能动力总成有限公司 | Engine cylinder cover water pipe draw-off gear and engine cylinder cover water pipe Hubbing method |
-
2014
- 2014-10-20 CN CN201420604957.2U patent/CN204171961U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325432A (en) * | 2014-10-20 | 2015-02-04 | 贵州航天凯山石油仪器有限公司 | Disassembling method and disassembling tooling for down-hole instrument sealing plug seat |
| CN109877765A (en) * | 2019-03-28 | 2019-06-14 | 江苏三能动力总成有限公司 | Engine cylinder cover water pipe draw-off gear and engine cylinder cover water pipe Hubbing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |