CN204283414U - A kind of downhole tool deepness locater - Google Patents
A kind of downhole tool deepness locater Download PDFInfo
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- CN204283414U CN204283414U CN201420729796.XU CN201420729796U CN204283414U CN 204283414 U CN204283414 U CN 204283414U CN 201420729796 U CN201420729796 U CN 201420729796U CN 204283414 U CN204283414 U CN 204283414U
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- groove
- claw
- centralizer body
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- brake pad
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Abstract
A kind of downhole tool deepness locater, relates to the downhole tool that field of oil field oil extraction is used.It is by central tube (1), centralizer body (2), some claws (3) and brake pad (4) are formed, the outer wall on central tube (1) top is provided with the conical surface (5), the tube wall of hypomere is provided with handling slideway (6), the outer wall of centralizer body (2) is provided with claw groove (7) and brake pad groove (8), the outer wall cover of centralizer body (2) has circumferential band (10), claw (3) is provided with inclined-plane (12) in the inner side of upper end, the outer wall of claw (3) is provided with draw-in groove (13), claw (3) is embedded in claw groove (7), its lower end is placed in the Ka Ku (9) of claw groove (7) bottom, circumferential band (10) is enclosed within draw-in groove (13) place and is provided with holddown spring (14) and connects, brake pad (4) be provided with spring (15) between groove and be connected.It has that structure is simple, accurate positioning and advantage easy to use.
Description
Technical field
The utility model relates to field of oil field oil extraction downhole tool used, particularly relates to downhole tool depthing tool.
Background technology
For oilwell water shutoff, well seperated layer water injection, enter packer under needs and each layer is separated, but have several factors can affect the accuracy of depth of setting.This, wherein except human factor with measure tubing string error and affect except depth of setting, also has following factor also can affect depth of setting: one is that buckle the degree of depth that is screwed into after tightening due to oil pipe cone be not that very definitely the accumulation results of over one hundred pipe can cause certain error; Two is that the deadweight of oil pipe is extended and also can be caused change on certain depth dimensions; Three is when suppressing set packer and tubing anchor, and tubing string also can under high pressure extension effects depth of setting.The synthesis result of these factors can make the actual depth of setting of packer and projected depth inconsistent, particularly for the well that interlayer is very thin, these errors likely cause card by mistake, do not reach the object of construction, and this error cannot be analyzed by the production after construction clear and definite.
The usual way of the actual depth of setting of checking sealing of packer adopts magnetic location well logging to judge, but this method need be coordinated external coordination unit and coordinate, being difficult to ensure with arriving, also needing comparatively high cost, and there is the integrity problem of instrument and the cable whether manual operation such as adjustment in time.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of downhole tool deepness locater, to solve the problem that current downhole tool location is difficult and cost is high.
Technical solution of the present utility model is: it is by central tube, centralizer body, some claws and brake pad are formed, the two ends of central tube are provided with connecting thread, the outer wall of central tube near top is provided with the conical surface that inclined-plane is arranged downward, the tube wall of conical surface hypomere is provided with handling slideway, centralizer body is the tubular body be enclosed within central tube below the conical surface, the outer wall of centralizer body is respectively equipped with claw groove for inlaying claw and brake pad and brake pad groove in upper-lower section, claw groove bottom is provided with Ka Ku, the position that the outer wall of centralizer body is corresponding with claw groove is overlapped and is had circumferential band, the inwall of centralizer body is provided with the slide block matched with handling slideway, make to make centralizer body be slided by the sliding section of difference of slide block along handling slideway when handling central tube, claw is provided with the inclined-plane matched with the conical surface on central tube in the inner side of upper end, the outer wall of claw is provided with draw-in groove, claw is embedded in the claw groove of centralizer body, its upper end is stretched out in the upper surface of centralizer body, its lower end is placed in the card storehouse of claw groove bottom, circumferential band on centralizer body outer wall be enclosed within claw draw-in groove place and be provided with holddown spring between draw-in groove and be connected, brake pad to be embedded in brake pad groove and be provided with spring between groove and be connected, brake pad can be stretched out from groove.
Technique effect of the present utility model is: it has, and structure is simple, accurate positioning and advantage easy to use, tubing string above downhole tool the utility model being connected to the degree of depth to be determined is gone into the well, when fixture block is stuck on predetermined casing coupling, be just indirectly aware of the place degree of depth of downhole tool.Position because of casing coupling is reliable constant, tubing string need the downhole tool (as packer) of accurately location top add the locator catching casing coupling with, thus specify that the correspondence position of this box cupling and oil pipe, the degree of depth corresponding to downhole tool then below it would not have larger discrepancy, thus solves the problem that downhole tool reliably locates.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, it is by central tube 1, centralizer body 2, some claws 3 and brake pad 4 are formed, the two ends of central tube 1 are provided with connecting thread, the outer wall of central tube 1 near top is provided with the conical surface 5 that inclined-plane is arranged downward, the tube wall of the conical surface 5 hypomere is provided with handling slideway 6, centralizer body 2 is for being enclosed within the tubular body on central tube 1 below the conical surface 5, the outer wall of centralizer body 2 is respectively equipped with claw groove 7 for inlaying claw 3 and brake pad 4 and brake pad groove 8 in upper-lower section, claw groove 7 bottom is provided with card storehouse 9, the position that the outer wall of centralizer body 2 is corresponding with claw groove 7 is overlapped and is had circumferential band 10, the inwall of centralizer body 2 is provided with the slide block 11 matched with handling slideway 6, make to make centralizer body 2 be slided by the sliding section of difference of slide block 11 along handling slideway 6 when handling central tube 1, claw 3 is provided with the inclined-plane 12 matched with the conical surface 5 on central tube 1 in the inner side of upper end, the outer wall of claw 3 is provided with draw-in groove 13, claw 3 is embedded in the claw groove 7 of centralizer body 2, its upper end is stretched out in the upper surface of centralizer body 2, its lower end is placed in the card storehouse 9 of claw groove 7 bottom, circumferential band 10 on centralizer body 2 outer wall be enclosed within claw 3 draw-in groove 13 place and be provided with holddown spring 14 between draw-in groove 13 and be connected, brake pad 4 to be embedded in brake pad groove 8 and be provided with spring 15 between groove and be connected, brake pad 4 can be stretched out from groove.
Handling slideway is conventional design, and action executing parts can be made to be slided up and down along slideway by handling action and enter in different chute sections.Handling slideway of the present utility model can be made up of the vertical slideway of two sections of different length, and centre connects with oblique slideway.Also the combined endless tube wall of different chute sections one week can be utilized to arrange, make action executing parts can repetitive operation.
Claw is contained in centralizer body top, with spring, fixture block is abutted on central tube.Brake pad is then propped up by brake pad spring, makes brake pad be attached on the borehole wall in the process of going into the well.When reality uses, the tubing string above the downhole tool this locator being connected to the degree of depth to be confirmed is gone into the well.When being lowered into the sleeve pipe of the predetermined radical in well, carry out tubing string handling action, the outstanding post (slide block) on centralizer body is enable to enter into long slideway (making the conical surface of claw in this chute sections and central tube touch and open) on central tube, then continue to transfer tubing string, at this moment due to brake pad by brake pad spring be pressed on sleeve pipe by deadweight can not be descending, so the cone on central tube just makes overhanging being attached on sleeve pipe of claw run, until claw is stuck on casing coupling in its draw-in groove place, thus the depth location of downhole tool under making it is confirmed.
Claims (1)
1. a downhole tool deepness locater, it is characterized in that, it is by central tube (1), centralizer body (2), some claws (3) and brake pad (4) are formed, the two ends of central tube (1) are provided with connecting thread, the outer wall of central tube (1) near top is provided with the conical surface (5) that inclined-plane is arranged downward, the tube wall of the conical surface (5) hypomere is provided with handling slideway (6), centralizer body (2) is for being enclosed within central tube (1) in the tubular body of the conical surface (5) below, the outer wall of centralizer body (2) is respectively equipped with claw groove (7) for inlaying claw (3) and brake pad (4) and brake pad groove (8) in upper-lower section, claw groove (7) bottom is provided with Ka Ku (9), the position that the outer wall of centralizer body (2) is corresponding with claw groove (7) is overlapped and is had circumferential band (10), the inwall of centralizer body (2) is provided with the slide block (11) matched with handling slideway (6), make to make centralizer body (2) be slided by the sliding section of difference of slide block (11) along handling slideway (6) when handling central tube (1), claw (3) is provided with the inclined-plane (12) matched with the conical surface (5) on central tube (1) in the inner side of upper end, the outer wall of claw (3) is provided with draw-in groove (13), claw (3) is embedded in the claw groove (7) of centralizer body (2), its upper end is stretched out in the upper surface of centralizer body (2), its lower end is placed in the Ka Ku (9) of claw groove (7) bottom, circumferential band (10) on centralizer body (2) outer wall be enclosed within claw (3) draw-in groove (13) place and be provided with holddown spring (14) between draw-in groove (13) and be connected, brake pad (4) to be embedded in brake pad groove (8) and be provided with spring (15) between groove and be connected, brake pad (4) can be stretched out from groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729796.XU CN204283414U (en) | 2014-11-29 | 2014-11-29 | A kind of downhole tool deepness locater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729796.XU CN204283414U (en) | 2014-11-29 | 2014-11-29 | A kind of downhole tool deepness locater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283414U true CN204283414U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729796.XU Active CN204283414U (en) | 2014-11-29 | 2014-11-29 | A kind of downhole tool deepness locater |
Country Status (1)
| Country | Link |
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| CN (1) | CN204283414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626042A (en) * | 2016-03-17 | 2016-06-01 | 中科金佳（北京）油田技术开发有限公司 | Load indicator |
-
2014
- 2014-11-29 CN CN201420729796.XU patent/CN204283414U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626042A (en) * | 2016-03-17 | 2016-06-01 | 中科金佳（北京）油田技术开发有限公司 | Load indicator |
| CN105626042B (en) * | 2016-03-17 | 2019-03-01 | 中科金佳（北京）油田技术开发有限公司 | A kind of demand in dicator |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |