CN202914027U - Salvage type drilling-free plug hydraulic grading cementing device and special spear thereof - Google Patents
Salvage type drilling-free plug hydraulic grading cementing device and special spear thereof Download PDFInfo
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- CN202914027U CN202914027U CN 201220631370 CN201220631370U CN202914027U CN 202914027 U CN202914027 U CN 202914027U CN 201220631370 CN201220631370 CN 201220631370 CN 201220631370 U CN201220631370 U CN 201220631370U CN 202914027 U CN202914027 U CN 202914027U
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- sliding sleeve
- plug
- central tube
- central pipe
- cementing device
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Abstract
The utility model relates to an oil field cement operation tool, in particular to a salvage type drilling-free plug hydraulic grading cementing device and a special spear thereof. A central pipe is connected inside the lower end of an upper joint of the device, and a shell body is connected outside the lower end of the upper joint. The central pipe is connected inside the upper end of a lower joint, and the shell body is connected outside the upper end of the lower joint. A closed piston, a closed sliding sleeve and an open sliding sleeve are sequentially arranged outside the central pipe from top to bottom in a sleeved mode, the closed sliding sleeve is fixedly connected on the central pipe by a closed pin, the open sliding sleeve is fixedly connected on the central pipe by an open pin, and a circulating hole is formed in the lower portion of the shell body and sealed by the opening sliding sleeve. A fishing barrel and a setting sleeve are arranged inside the central pipe, and a closed plug seat is arranged inside the fishing barrel. The salvage type drilling-free plug hydraulic grading cementing device achieves the aim that a fishing spear can be placed to completely fish out an inner structure of a tool, ensures consistency of an inner drift diameter and a sleeve inner diameter, avoids a series of loss of a drill, and overcomes the defects that a drilling plug is needed in existing cementing operation, shaft building period is prolonged, and well cementation quality is affected.
Description
Technical field:
The utility model relates to a kind of reinforcing oil well power tool, and particularly a kind of salvaging type exempts to bore the plug hydraulic stage-cementing device and lance is dragged in special use.
Background technology:
At present, conventional stage cementing device is finished the stage cementing operation, waits to wait condense internal construction that drilling tool under the Shu Houxu affects run through casing size with stage cementing device and bores just and can carry out subsequent job, has not only prolonged well construction period, and has affected cementing quality.Fill in the series of problems that brings for fear of boring, the domestic people of having has developed from drift diameter drilling-free plug stage cementing device, namely after cementing finishes, makes the internal construction self falling of stage cementing device by building the pressure, come downwards to the shaft bottom by gravity, thereby reach the purpose of exempting to bore plug.But, the field shows from drift diameter drilling-free plug stage cementing device very tight to the hole deviation requirement, and general hole deviation surpasses the wells of 20 degree, and the internal construction of stage cementing device just is difficult to come off, can't come downwards to the shaft bottom, the later stage still needs lower drilling tool that internal construction is bored.Therefore, fundamentally do not solve the problem of boring plug from drift diameter drilling-free plug stage cementing device.
The utility model content:
The technical problems to be solved in the utility model provides that a kind of salvaging type exempts to bore the plug hydraulic stage-cementing device and lance is dragged in special use, this device has been realized being lowered to and has been dragged for lance the tool interior structure is all pulled out, guaranteed that inner latus rectum is consistent with casing inner diameter, avoided boring a series of losses that plug brings.Overcome existing cementing job and need to bore plug, prolonged well construction period, affected the deficiency of cementing quality.
Technical solution adopted in the utility model is: a kind of salvaging type exempts to bore the plug hydraulic stage-cementing device, comprises top connection, central tube and lower contact; The inboard central tube that connects in top connection lower end, the outside, lower end connects housing; The inboard central tube that connects in lower contact upper end, the outside, upper end connects housing; The central tube outside is set with successively from top to bottom closure piston, closes sliding sleeve and opens sliding sleeve, closing sliding sleeve is fastened on the central tube by closing pin, opening sliding sleeve is fastened on the central tube by opening pin, lower housing portion has circulation port and the sliding sleeve that is opened seals, the central tube installed inside has dipper and setting sleeve, and the dipper installed inside has the shut-off plug seat.
Salvaging type is exempted to bore the special use of filling in hydraulic stage-cementing device and is dragged for lance, and this drags for lance and comprises tool joint, and tool joint, lock dog, plug connect from top to bottom in turn, and spring is installed in the lock dog, and the tool joint lower end has opening.
The beneficial effects of the utility model are: the opening and closing of stage cementing device circulation port of the present utility model all adopt hydraulic pressure to finish, and have enlarged the range of application of instrument; Lost efficacy if stage cementing device opens or closes circulation port under hydraulic action, and all can adopt mechanical system to remedy, and namely be lowered to special-purpose setting tool circulation port is opened or closed, improved the reliability of tool performance; The utility model has been realized being lowered to and has been dragged for lance the tool interior structure is all pulled out, has guaranteed that inner latus rectum is consistent with casing inner diameter, has avoided boring a series of losses that plug brings.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation that salvaging type exempts to bore the plug hydraulic stage-cementing device.
Fig. 2 is that salvaging type exempts to bore the structural representation that lance is dragged in the special use of filling in hydraulic stage-cementing device.
The specific embodiment:
As shown in Figure 1 and Figure 2, a kind of salvaging type exempts to bore the plug hydraulic stage-cementing device, comprises top connection 1, central tube 2 and lower contact 7; The inboard central tube 2 that connects in top connection 1 lower end, the outside, lower end connects housing 6; The inboard central tube 2 that connects in lower contact 7 upper ends, the outside, upper end connects housing 6; Central tube 2 outsides are set with successively from top to bottom closure piston 3, close sliding sleeve 4 and open sliding sleeve 5, closing sliding sleeve 4 is fastened on the central tube 2 by closing pin, opening sliding sleeve 5 is fastened on the central tube 2 by opening pin, housing 6 bottoms have circulation port and the sliding sleeve 5 that is opened seals, central tube 2 installed inside have dipper 8 and setting sleeve 10, and dipper 8 installed inside have shut-off plug seat 9.
Salvaging type is exempted to bore the special use of filling in hydraulic stage-cementing device and is dragged for lance, and this drags for lance and comprises tool joint 11, and tool joint 11, lock dog 12, plug 13 connect from top to bottom in turn, and spring 14 is installed in the lock dog 12, and tool joint 11 lower ends have opening.
When the utility model uses, salvaging type is exempted to bore plug hydraulic stage-cementing device G.I.H precalculated position, after the one-level cementing finishes, drop into flexible plug, bruising is opened pressure until open sliding sleeve 5, cuts off if open pin, it is descending to open sliding sleeve 5, and circulation port is opened; Do not cut off if open pin, then drop into and set plumb to setting sleeve 10 places, again build the pressure to cut off and open pin, circulation port is opened.After the secondary cementing finishes, drop into shut-off plug and close pin to closing on the obturating plug 9, build the pressure to cut off, it is descending to close sliding sleeve 4, and circulation port is closed.Be lowered to special use and drag for lance to dipper 8, upper bailing lance is all pulled inner sleeve out.
Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (2)
1. a salvaging type exempts to bore the plug hydraulic stage-cementing device, comprises top connection (1), central tube (2) and lower contact (7); It is characterized in that: the inboard central tube (2) that connects in top connection (1) lower end, the outside, lower end connects housing (6); The inboard central tube (2) that connects in lower contact (7) upper end, the outside, upper end connects housing (6); Central tube (2) outside is set with successively from top to bottom closure piston (3), closes sliding sleeve (4) and opens sliding sleeve (5), closing sliding sleeve (4) is fastened on the central tube (2) by closing pin, opening sliding sleeve (5) is fastened on the central tube (2) by opening pin, housing (6) bottom has circulation port and the sliding sleeve that is opened (5) seals, central tube (2) installed inside has dipper (8) and setting sleeve (10), and dipper (8) installed inside has shut-off plug seat (9).
2. exempt to bore the special use of filling in hydraulic stage-cementing device according to salvaging type claimed in claim 1 and drag for lance, it is characterized in that: this drags for lance and comprises tool joint (11), tool joint (11), lock dog (12), plug (13) connect from top to bottom in turn, spring (14) is installed in the lock dog (12), and tool joint (11) lower end has opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631370 CN202914027U (en) | 2012-11-26 | 2012-11-26 | Salvage type drilling-free plug hydraulic grading cementing device and special spear thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631370 CN202914027U (en) | 2012-11-26 | 2012-11-26 | Salvage type drilling-free plug hydraulic grading cementing device and special spear thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914027U true CN202914027U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631370 Expired - Fee Related CN202914027U (en) | 2012-11-26 | 2012-11-26 | Salvage type drilling-free plug hydraulic grading cementing device and special spear thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914027U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234659A (en) * | 2013-06-18 | 2014-12-24 | 中国石油天然气股份有限公司 | Drilling-free classification well cementation device |
| CN107701121A (en) * | 2017-11-03 | 2018-02-16 | 中国海洋石油总公司 | Exempt from brill to exempt to drag for solid completion integral tubing string |
| CN107859498A (en) * | 2017-11-21 | 2018-03-30 | 中国石油集团西部钻探工程有限公司 | Combined type fishing device |
| CN107975352A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Stage cementing device |
| CN113982530A (en) * | 2021-12-23 | 2022-01-28 | 纬达石油装备有限公司 | Drilling-plug-free stage cementing device and using method thereof |
| CN114320218A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementing device |
| CN114776245A (en) * | 2022-05-16 | 2022-07-22 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
-
2012
- 2012-11-26 CN CN 201220631370 patent/CN202914027U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234659A (en) * | 2013-06-18 | 2014-12-24 | 中国石油天然气股份有限公司 | Drilling-free classification well cementation device |
| CN104234659B (en) * | 2013-06-18 | 2016-12-28 | 中国石油天然气股份有限公司 | Exempt to bore fraclional well cementing device |
| CN107975352A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Stage cementing device |
| CN107701121A (en) * | 2017-11-03 | 2018-02-16 | 中国海洋石油总公司 | Exempt from brill to exempt to drag for solid completion integral tubing string |
| CN107701121B (en) * | 2017-11-03 | 2019-05-28 | 中国海洋石油集团有限公司 | Exempt to bore and exempts to fish out solid completion integral tubing string |
| CN107859498A (en) * | 2017-11-21 | 2018-03-30 | 中国石油集团西部钻探工程有限公司 | Combined type fishing device |
| CN114320218A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementing device |
| CN114320218B (en) * | 2020-09-30 | 2023-08-22 | 中国石油天然气股份有限公司 | Drilling-plug-free well cementation device |
| CN113982530A (en) * | 2021-12-23 | 2022-01-28 | 纬达石油装备有限公司 | Drilling-plug-free stage cementing device and using method thereof |
| CN113982530B (en) * | 2021-12-23 | 2022-03-04 | 纬达石油装备有限公司 | Drilling-plug-free stage cementing device and using method thereof |
| CN114776245A (en) * | 2022-05-16 | 2022-07-22 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
| CN114776245B (en) * | 2022-05-16 | 2023-03-24 | 大庆长垣能源科技有限公司 | Drilling plug-free salvageable well completion process |
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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: 20130501 Termination date: 20151126 |