CN203769694U - Self-sealing rotation core taking tool for well repair - Google Patents
Self-sealing rotation core taking tool for well repair Download PDFInfo
- Publication number
- CN203769694U CN203769694U CN201420154923.8U CN201420154923U CN203769694U CN 203769694 U CN203769694 U CN 203769694U CN 201420154923 U CN201420154923 U CN 201420154923U CN 203769694 U CN203769694 U CN 203769694U
- Authority
- CN
- China
- Prior art keywords
- claw
- self
- thread
- core body
- compactor
- 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
Links
Abstract
A self-sealing rotation core taking tool for well repair comprises a cylindrical presser and a rotation core capturer, and is characterized in that the upper portion of the presser is provided with a female thread, the lower portion of the presser is provided with a male thread, and a press disc with ridges is arranged in the middle of the presser; the rotation core capturer is cylindrical, the upper portion of the rotation core capturer is provided with a female thread, the lower portion of the rotation core capturer is provided with a core taking body, the middle lower portion of the core taking body is provided with symmetric rectangular claw grooves, claws are arranged in the claw grooves, the lower ends of the claws are connected with the claw grooves through pins, the bottoms of the upper ends of the claws are connected with the bottom of the claw grooves through springs, and the lower end of the core taking body is provided with a male thread; the upper portion of the core taking body is connected with the presser in a threaded manner.
Description
Technical field
The utility model belongs to a kind of well workover and rotates self-styled coring tool, and this instrument is for the dismounting operation of the rotation self-sealing core of drilling well, operation and formation testing well workover industry.
Background technology
Heavy repair task is mainly to process in light maintenance operation process, because equipment load and relevant equipment limit the complex accident well that cannot process.Rotating self-styled is the indispensable instrument of overhaul construction, and the enclosure space that its upper end is made up of plurality of bolts rotates self-styled inner core upper end and relies on interference sealing, and lower end is connected with preventer by bolt, completes the construction such as brill, mill, cover, milling of flushing operation.Because frequency of utilization is high, need often to change the self-styled inner core of rotation.Be subject to rig floor lower space narrow and small, personnel enter the conditionalities such as difficulty, and more difficult when replacing, especially the blind bolt on top presses down difficulty, and dismounting difficulty is large; The restriction of the problems such as simultaneously frayed, aging, absorption, rotary inner core takes out difficulty, once changes and needs 2h consuming time left and right.Can not interrupt circulation when normally creeping into, existing to change wastes time and energy, and the problem that labour intensity is larger, has not only increased overhaul and accounted for the well cycle, and affected crude output.
Summary of the invention
The purpose of this utility model is to provide a kind of well workover and rotates self-styled coring tool,, overcome the defect that above-mentioned prior art exists.
The technical solution of the utility model is achieved in the following ways:
The utility model comprises compactor and rotary inner core gripper, it is characterized in that: compactor is made as cylindrical, and top is provided with box thread, and bottom is provided with male thread, and middle part is provided with the platen of band card rib; Rotary inner core gripper is made as cylindrical, top is provided with box thread, bottom is provided with gets core body, be provided with symmetrical rectangle claw groove in the middle and lower part of getting core body, in claw groove, be provided with claw, claw lower end is connected with claw groove by bearing pin, and underrun spring in upper end is connected with claw bottom land, is provided with male thread getting core body bottom; Getting core body top is threaded with compactor.
The diameter of the platen of compactor is made as 178mm, and upper and lower diameter is made as 105mm, and box thread and male thread are made as identical taper pipe thread, and box thread is made as 210 buttons, and male thread is made as 211 buttons.
Get core body diameter 90mm, height 500mm, center-hole diameter 48mm, claw groove groove height 120mm, groove width 30mm.
The utility model has the advantages that to have simplified and rotate self-styled mounting-dismounting programme, installation procedure reduces to 12 roads by original 14 road; Get core operation and reduce to 6 current roads by original 12 road.Single disassembly and assembly time, by original average 63.2 minutes, shortens to current 9.7 minutes.Convenient to disassembly fast, significantly shorten disassembly and assembly time, reduce workman's labour intensity, this instrument is applicable to all heavy repair tasks scene, has good application and promotional value.
Brief description of the drawings
Fig. 1-structural representation of the present utility model;
In figure, 1-gets core body, 2-bearing pin, 3-claw, 4-spring, 5-box thread, 6-platen.
Detailed description of the invention
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model comprises compactor and rotary inner core gripper, it is characterized in that: compactor is made as cylindrical, and top is provided with box thread, and bottom is provided with male thread, and middle part is provided with the platen of band card rib; Rotary inner core gripper is made as cylindrical, top is provided with box thread, bottom is provided with gets core body, be provided with symmetrical rectangle claw groove in the middle and lower part of getting core body, in claw groove, be provided with claw, claw lower end is connected with claw groove by bearing pin, and underrun spring in upper end is connected with claw bottom land, is provided with male thread getting core body bottom; Getting core body top is threaded with compactor.In the time of application the utility model, compactor top box thread is connected with drilling rod above well head, and bottom male thread is connected with the top of getting core body of rotary inner core gripper, gets core body bottom and is connected with the drilling rod in well.Transfer drilling rod, pressurization, plays the self-styled upper press cover of extruding rotation, forces bolt looseness, plays the effect that helps bolt of cover dismounting.While getting core, below stacks, spring pressurized while getting core body through the self-styled body of rotation, claw merges to regain to be got in core body, overhang under spring action through claw after the self-styled inner core of the self-styled body of rotation, upper lifting pipe post will be replaced the disposable taking-up of self-sealing core.Convenient and swift time saving and energy saving.Simplified and rotated self-styled mounting-dismounting programme, installation procedure reduces to 12 roads by original 14 road; Get core operation and reduce to 6 current roads by original 12 road.Single disassembly and assembly time, by original average 63.2 minutes, shortens to current 9.7 minutes.Convenient to disassembly fast, significantly shorten disassembly and assembly time, reduce workman's labour intensity, this instrument is applicable to all heavy repair tasks scene, has good application and promotional value.
Claims (3)
1. a self-styled coring tool is rotated in well workover, comprises compactor and rotary inner core gripper, it is characterized in that: compactor is made as cylindrical, and top is provided with box thread, and bottom is provided with male thread, and middle part is provided with the platen of band card rib; Rotary inner core gripper is made as cylindrical, top is provided with box thread, bottom is provided with gets core body, be provided with symmetrical rectangle claw groove in the middle and lower part of getting core body, in claw groove, be provided with claw, claw lower end is connected with claw groove by bearing pin, and underrun spring in upper end is connected with claw bottom land, is provided with male thread getting core body bottom; Getting core body top is threaded with compactor.
2. self-styled coring tool is rotated in well workover according to claim 1, it is characterized in that: the diameter of the platen of compactor is made as 178mm, upper and lower diameter is made as 105mm, and box thread and male thread are made as identical taper pipe thread, box thread is made as 210 buttons, and male thread is made as 211 buttons.
3. self-styled coring tool is rotated in well workover according to claim 1, it is characterized in that: get core body diameter 90mm, height 500mm, center-hole diameter 48mm, claw groove groove height 120mm, groove width 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154923.8U CN203769694U (en) | 2014-04-02 | 2014-04-02 | Self-sealing rotation core taking tool for well repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154923.8U CN203769694U (en) | 2014-04-02 | 2014-04-02 | Self-sealing rotation core taking tool for well repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769694U true CN203769694U (en) | 2014-08-13 |
Family
ID=51286895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420154923.8U Expired - Fee Related CN203769694U (en) | 2014-04-02 | 2014-04-02 | Self-sealing rotation core taking tool for well repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733133A (en) * | 2019-10-24 | 2020-01-31 | 自贡市昆林机械制造有限公司 | high-speed drilling and coring method |
-
2014
- 2014-04-02 CN CN201420154923.8U patent/CN203769694U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733133A (en) * | 2019-10-24 | 2020-01-31 | 自贡市昆林机械制造有限公司 | high-speed drilling and coring method |
| CN110733133B (en) * | 2019-10-24 | 2022-03-01 | 自贡市昆林机械制造有限公司 | High-speed drilling and coring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |