CN202280456U - Descending indicating device for rubber plug of cementing head - Google Patents
Descending indicating device for rubber plug of cementing head Download PDFInfo
- Publication number
- CN202280456U CN202280456U CN 201120416419 CN201120416419U CN202280456U CN 202280456 U CN202280456 U CN 202280456U CN 201120416419 CN201120416419 CN 201120416419 CN 201120416419 U CN201120416419 U CN 201120416419U CN 202280456 U CN202280456 U CN 202280456U
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- China
- Prior art keywords
- plug
- cementing head
- indicating device
- core
- magnetic core
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Abstract
The utility model relates to the technical field of indicating devices for rubber plugs of cementing heads, in particular to a descending indicating device for a rubber plug of a cementing head. The descending indicating device comprises a cementing head body, the rubber plug, a rubber plug core, a magnetic core, a stop pin and an indicating device, wherein the rubber plug is mounted in the cementing head body; a cavity is formed in the rubber plug; the magnetic core and the rubber plug core are fixedly mounted in the cavity from the top down; the stop pin capable of stopping the rubber plug from descending is mounted on the cementing head body at the part below the rubber plug; the indicating device is fixedly mounted on the cementing head main body in a position corresponding to the magnetic core; and a pointer capable of being adsorbed by the magnetic core is arranged on the indicating device. The descending indicating device provided by the utility model has a reasonable and compact structure, is convenient to use, can be used in combination with the cementing head to identify whether the rubber plug descends or not, and effectively avoids serious accidents that bump pressure is not achieved and a large number of cement plugs are detained at the bottom of a well. Therefore, the descending indicating device not only has a low cost, but also reduces potential safety hazards.
Description
Technical field
the utility model relates to cementing head plug indicating device technical field, is the descending indicating device of a kind of cementing head plug.
Background technology
cementing head is requisite a kind of rig tool in the cementing operation, in the well cementation process, plays important effect.But in the process of well cementation bottom plug; Because whether can't discern plug correctly descending; Occur because backing pin is not opened to put in place or other former thereby cause plug to fail to leave normally cementing head through regular meeting, can't bruising thereby cause, the shaft bottom stays major accidents such as a large amount of ash plugs.In a single day cement plug accident, the serious consequence that will cause oil well normally to go into operation particularly take place during the well cementing operation of oil reservoir completion to stay in the sleeve pipe more.Treating method can only be that the drilling tool that is lowered to smaller szie bores and to remove the cement plug that stays more.So not only incur loss through delay going into operation early but also will spending drilling out workover costs tens thousand of even more than ten ten thousand yuan of oil gas well.At present the oil field also has use can indicate the descending cementing head of plug, but because result of use is not good or because of complex structure, the too high large-scale promotion application of failing of price expense.
Summary of the invention
the utility model provides a kind of cementing head plug descending indicating device; Overcome the deficiency of above-mentioned prior art, it can effectively solve, and existing cementing head plug indicating device exists that result of use is not good, complex structure and the too high problem of cost.
The technical scheme of
the utility model realizes through following measure: the descending indicating device of a kind of cementing head plug comprises cementing head body, plug, plug core, magnetic core, backing pin and indicating device; In the cementing head body, plug is installed, cavity is arranged in plug, in cavity, be installed with magnetic core and plug core from top to bottom; On the cementing head body below the plug, be equipped with and block the descending backing pin of plug; With the corresponding cementing head body of magnetic core on be installed with indicating device, on indicating device, having can be by the pointer of magnetic core adhesive.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
above-mentioned indicating device can comprise dial plate, rotation spring and dial gauge latch; With the corresponding cementing head body of magnetic core on be fixed with the dial gauge slot; On dial plate, be fixed with the dial gauge latch; The dial gauge latch is inserted in the dial gauge slot, on the card near the dial plate of cementing head body one side, is carved with " having " word, on the card away from the dial plate of cementing head body one side, is carved with " nothing " word; The rotation spring is installed on dial plate, on the rotation spring, is equipped with and rotates the pointer that points to ' having ' word or ' nothing ' word with the rotation spring.
The sidewall of
above-mentioned cavity can be intervally distributed with the elastic ring platform from top to bottom; There is Ka Tai the upper end of magnetic core; There is dop the lower end of magnetic core, and the card decometer is contained in the cavity of the superiors elastic ring platform top, and the plug core comprises top cement plug core and bottom plug core; There is boss in the outside of top cement plug core; Boss is installed in the cavity between the elastic ring platform, on the top of top cement plug core upper groove is arranged, and in the bottom of top cement plug core low groove is arranged; Dop is fixedly mounted in the upper groove through screw thread; The bottom plug core comprises body and the installation head of external diameter greater than cavity diameter, and the upper end of body is fixed with installation head, and installation head is fixedly mounted in the low groove through screw thread.
the utility model reasonable and compact in structure; Easy to use, it uses with cementing head whether can discern plug descending, the generation that effectively avoiding can't bruising, major accidents such as a large amount of ash plugs are stayed in the shaft bottom; Therefore not only cost is low, has also greatly reduced potential safety hazard.
Description of drawings
accompanying drawing 1 is looked the sectional structure sketch map for the master of the utility model most preferred embodiment.
accompanying drawing 2 is looked the structure for amplifying sketch map for the master of A portion in the accompanying drawing 1.
Coding in
accompanying drawing is respectively: 1 is the cementing head body, and 2 is plug, and 3 is installation head, and 4 is magnetic core; 5 is backing pin, and 6 is pointer, and 7 is dial plate, and 8 are the rotation spring; 9 is the dial gauge latch, and 10 is the dial gauge slot, and 11 is the elastic ring platform, and 12 is Ka Tai; 13 is dop, and 14 is the top cement plug core, and 15 is boss, and 16 is body.
The specific embodiment
the utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
are in the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description 1, as: on. down. a left side. the position relation on the right side etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
like accompanying drawing 1, shown in 2, the descending indicating device of this cementing head plug comprises cementing head body 1, plug 2, plug core, magnetic core 4, backing pin 5 and indicating device; Plug 2 is installed in cementing head body 1, in plug 2, cavity is arranged, in cavity, be installed with magnetic core 4 and plug core from top to bottom; On the cementing head body 1 below the plug 2, be equipped with and block the descending backing pin 5 of plug 2; With magnetic core 4 corresponding cementing head bodies 1 on be installed with indicating device, on indicating device, having can be by the pointer 6 of magnetic core 4 adhesives.
Can according to actual needs the descending indicating device of above-mentioned cementing head plug be done further to optimize or/and improve:
like accompanying drawing 1, shown in 2, indicating device comprises dial plate 7, rotation spring 8 and dial gauge latch 9; With magnetic core 4 corresponding cementing head bodies 1 on be fixed with dial gauge slot 10; On dial plate 7, be fixed with dial gauge latch 9; Dial gauge latch 9 is inserted in the dial gauge slot 10, on the card near the dial plate 7 of cementing head body 1 one sides, is carved with " having " word, on the card away from the dial plate of cementing head body 1 one sides, is carved with " nothing " word; Rotation spring 8 is installed on dial plate 7, on rotation spring 8, is equipped with and rotates the pointer 6 that points to ' having ' word or ' nothing ' word with rotation spring 8.
are like accompanying drawing 1, shown in 2; For the ease of installation and removal; Sidewall at cavity is intervally distributed with elastic ring platform 11 from top to bottom, and there is card platform 12 upper end of magnetic core 4, and there is dop 13 lower end of magnetic core 4; Card platform 12 is installed in the cavity of the superiors elastic ring platform 11 tops, and the plug core comprises top cement plug core 14 and bottom plug core; There is boss 15 in the outside of top cement plug core 14; Boss 15 is installed in the cavity between the elastic ring platform 11, on the top of top cement plug core 14 upper groove is arranged, and in the bottom of top cement plug core 14 low groove is arranged; Dop 13 is fixedly mounted in the upper groove through screw thread; The bottom plug core comprises external diameter greater than body of cavity diameter 16 and installation head 3, and the upper end of body 16 is fixed with installation head 3, and installation head 3 is fixedly mounted in the low groove through screw thread.
above technical characterictic has constituted the most preferred embodiment of the utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of
the utility model most preferred embodiment: during well cementation; Close cementing head backing pin 5; The plug that is built-in with magnetic core 42 is placed in the cementing head body 1, and after cementing head body 1 was connected sleeve pipe, the dial gauge latch 9 of indicating device was inserted in the dial gauge slot 10.When not putting into plug 2 in the cementing head body 1, the position of pointer 6 indication " nothing " words, showing does not have plug 2 in the cementing head body 1; When putting into plug 2 in the cementing head body 1 owing in the plug 2 magnetic core 4 is arranged, pointer 6 receive magnetic force effect and to anticlockwise, the position of pointer 6 indication " having " words, showing has plug 2 in the cementing head body 1; During bottom plug 2, open backing pin 5, pump into highly pressurised liquid, if plug 2 is normally descending; Leave cementing head body 1, pointer 6 loses magneticaction, and to right rotation, pointer is indicated the position of " nothing " word by 8 effects of rotation spring; Show that plug 2 has left cementing head body 1, on the contrary, if plug 2 does not leave cementing head body 1; Pointer 6 is still indicated the position of " having " word, so, just can play the effect whether identification plug 2 leaves cementing head body 1.
Claims (3)
1. the descending indicating device of cementing head plug is characterized in that comprising cementing head body, plug, plug core, magnetic core, backing pin and indicating device; In the cementing head body, plug is installed, cavity is arranged in plug, in cavity, be installed with magnetic core and plug core from top to bottom; On the cementing head body below the plug, be equipped with and block the descending backing pin of plug; With the corresponding cementing head body of magnetic core on be installed with indicating device, on indicating device, having can be by the pointer of magnetic core adhesive.
2. the descending indicating device of cementing head plug according to claim 1 is characterized in that indicating device comprises dial plate, rotation spring and dial gauge latch; With the corresponding cementing head body of magnetic core on be fixed with the dial gauge slot; On dial plate, be fixed with the dial gauge latch; The dial gauge latch is inserted in the dial gauge slot, on the card near the dial plate of cementing head body one side, is carved with " having " word, on the card away from the dial plate of cementing head body one side, is carved with " nothing " word; The rotation spring is installed on dial plate, on the rotation spring, is equipped with and rotates the pointer that points to " having " word or " nothing " word with the rotation spring.
3. the descending indicating device of cementing head plug according to claim 1 and 2; The sidewall that it is characterized in that cavity is intervally distributed with the elastic ring platform from top to bottom; There is Ka Tai the upper end of magnetic core; There is dop the lower end of magnetic core, and the card decometer is contained in the cavity of the superiors elastic ring platform top, and the plug core comprises top cement plug core and bottom plug core; There is boss in the outside of top cement plug core; Boss is installed in the cavity between the elastic ring platform, on the top of top cement plug core upper groove is arranged, and in the bottom of top cement plug core low groove is arranged; Dop is fixedly mounted in the upper groove through screw thread; The bottom plug core comprises body and the installation head of external diameter greater than cavity diameter, and the upper end of body is fixed with installation head, and installation head is fixedly mounted in the low groove through screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120416419 CN202280456U (en) | 2011-10-27 | 2011-10-27 | Descending indicating device for rubber plug of cementing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120416419 CN202280456U (en) | 2011-10-27 | 2011-10-27 | Descending indicating device for rubber plug of cementing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280456U true CN202280456U (en) | 2012-06-20 |
Family
ID=46226629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120416419 Expired - Fee Related CN202280456U (en) | 2011-10-27 | 2011-10-27 | Descending indicating device for rubber plug of cementing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280456U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350941A (en) * | 2015-12-04 | 2016-02-24 | 中国石油集团西部钻探工程有限公司 | Push rod type indicating device and rubber plug falling indication cementing head |
| CN105971591A (en) * | 2016-07-22 | 2016-09-28 | 中国海洋石油总公司 | Cement head and indicator on same |
| CN113236234A (en) * | 2021-05-31 | 2021-08-10 | 濮阳中原三力创高机械设备有限公司 | Manufacturing and application method of rubber plug downlink indicator |
-
2011
- 2011-10-27 CN CN 201120416419 patent/CN202280456U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350941A (en) * | 2015-12-04 | 2016-02-24 | 中国石油集团西部钻探工程有限公司 | Push rod type indicating device and rubber plug falling indication cementing head |
| CN105350941B (en) * | 2015-12-04 | 2018-12-18 | 中国石油集团西部钻探工程有限公司 | Push-down instruction device and rubber plug downlink indicate cementing head |
| CN105971591A (en) * | 2016-07-22 | 2016-09-28 | 中国海洋石油总公司 | Cement head and indicator on same |
| CN105971591B (en) * | 2016-07-22 | 2019-05-17 | 中国海洋石油总公司 | Cementing head and indicator thereon |
| CN113236234A (en) * | 2021-05-31 | 2021-08-10 | 濮阳中原三力创高机械设备有限公司 | Manufacturing and application method of rubber plug downlink indicator |
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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: 20120620 Termination date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |