CN202325390U - Circulating section well cementing device - Google Patents
Circulating section well cementing device Download PDFInfo
- Publication number
- CN202325390U CN202325390U CN2011203560219U CN201120356021U CN202325390U CN 202325390 U CN202325390 U CN 202325390U CN 2011203560219 U CN2011203560219 U CN 2011203560219U CN 201120356021 U CN201120356021 U CN 201120356021U CN 202325390 U CN202325390 U CN 202325390U
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- China
- Prior art keywords
- well
- cover
- outer tube
- assembly
- shear pin
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- Expired - Fee Related
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Abstract
The utility model discloses a circulating section well cementing device for well completion and well cementation of an oil field. The circulating section well cementing device comprises a leave-well assembly and a salvage assembly, wherein the leave-well assembly comprises an upper connector, an outer pipe, a closing shear pin, a closing sleeve, an opening shear pin, an opening sleeve, a locking sleeve and an external packer; the salvage assembly comprises a closing rubber plug, a lock ring and a blind plate; and a salvage tool can be put down for picking up the salvage assembly after the well cementation is finished, and the leave-well assembly is left in the well. According to the circulating section well cementing device disclosed by the utility model, the well cementation without plug drilling can be realized, the defects that in the plug drilling process of a regular classification cementation technology, the closing sleeve can be easily damaged by drilling, the leave-well part after the plug drilling is in irregular drift diameter and the like can be solved, and compared with the prior art, the circulating section well cementing device has the advantages that the well can be circularly cleaned, the plug drilling is free from being carried out, the salvage is easy, the use is safe and reliable, and the like.
Description
Technical field
The utility model relates to a kind of downhole tool of oilfield well completion well cementation usefulness, particularly a kind of circulation segmentation cementing unit.
Background technology
The conventional cementing method in oil field is to connect differential sizing collar in the external packer of pipe upper end; The external packer of pipe lower end connects the blind plate short circuit; After the cementing well completion, lower tubular column band junk mill grinds off blind plate, in the process that the milling brill is filled in, exists to be prone to stay defectives such as well part latus rectum is irregular after brill badly cuts out cover, brill plug; The existing brill plug sizing collar complex structure of exempting from can not be realized circulation well cleanup.
Summary of the invention
The purpose of the utility model provides a kind of circulation segmentation cementing unit, makes it have well-flushing capable of circulation, exempts to bore plug, advantage such as is prone to salvage, safe and reliable, can effectively improve cementing quality and efficiency of construction.
The purpose of the utility model is achieved in that and comprises and stay the well assembly and salvage assembly; Stay the well assembly to comprise top connection, outer tube, close shear pin, close cover, open shear pin, open cover, lock sleeve, external packer of pipe, salvage assembly and comprise and closes plug, lock ring, blind plate.The outer tube upper end is threaded with top connection, and outer tube lower end tube connector external packer has a plurality of cementings hole on the outer tube; Close cover and be positioned at outer tube top inner chamber body, close cover by closing shear pin and outer tube is fixed, closing below the cover is to open cover; Open cover by opening shear pin and outer tube is fixed, opening on cover and the outer tube has intercommunicating pore, and the lateral communication hole of outer tube is suppressed bloated sealing of hole with the external packer of pipe upper end and is communicated with; Opening below the cover is lock sleeve, and the gingival cyst of mucous gland in the newborn button is arranged in the lock sleeve, and opening the cover lower end has the lock pawl; The salvaging assembly is followed successively by from top to bottom closes plug, lock ring, blind plate, and the blind plate upper end has butt joint to be connected with lock ring.
The utility model compared with prior art has the following advantages: well-flushing capable of circulation, exempt to bore plug, be prone to salvage, safe and reliable.
Description of drawings
Accompanying drawing is the utility model structure chart.
Among the figure: 1-top connection, 2-outer tube, 3-close shear pin, 4-and close cover, 5-cementing hole, 6-intercommunicating pore, 7-and open shear pin, 8-and open cover, 9-lock pawl, 10-lock sleeve, 11-and close plug, 12-lock ring, 13-butt joint, 14-blind plate, 15-external packer of pipe;
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
The utility model comprises and stays the well assembly and salvage assembly, stays the well assembly to comprise top connection 1, outer tube 2, closes shear pin 3, closes cover 4, opens shear pin 7, opens cover 8, lock sleeve 10, external packer of pipe 15, salvages assembly and comprises and closes plug 11, lock ring 12, blind plate 14; Outer tube 2 upper ends are threaded with top connection 1, and outer tube 2 lower end tube connector external packers 15 have a plurality of cementings hole 5 on the outer tube 2; Close cover 4 and be positioned at outer tube 2 top inner chamber body; It is fixing with outer tube 2 by closing shear pin 3 to close cover 4, and closing below the cover 4 is to open cover 8, and it is fixing with outer tube 2 by opening shear pin 7 to open cover 8; Open on cover 8 and the outer tube 2 intercommunicating pore 6 is arranged; Opening cover 8 lower ends has lock pawl 9 tight with the gingival cyst of mucous gland in the newborn padlock of lock sleeve 10, and the lateral communication hole 6 of outer tube 2 is suppressed the sealing of hole that expands with external packer of pipe 15 upper ends and is communicated with, and opening below overlapping 8 is lock sleeve 10; The gingival cyst of mucous gland in the newborn button is arranged in the lock sleeve 10; Opening cover 8 lower ends has lock pawl 9, and the salvaging assembly is followed successively by from top to bottom closes plug 11, lock ring 12, blind plate 14, and blind plate 14 upper ends have butt joint 13 to be connected with lock ring 12.
During use, stay the well assembly with the tubing string G.I.H, circulation well cleanup behind the arrival design attitude is thrown blind plate 14 after well-flushing is accomplished; Suppress and promote blind plate 14 descending putting in place, the back liquid that puts in place is suppressed the sealing of hole that expands through the lateral communication hole 6 of outer tube 2 with external packer of pipe 15 upper ends and is communicated with, and external packer of pipe begins the envelope that expands; The envelope completion continued that expands is suppressed to cut off and is opened shear pin 7, and it is descending to promote to open cover 8, and the gingival cyst of mucous gland in the newborn padlock of opening cover 8 lower ends lock pawl 9 and lock sleeve 10 is tight; Open cementing hole 5 simultaneously, begin to carry out cementing job, throw after cementing is accomplished and close plug 11; Suppress that to promote to close plug 11 descending, simultaneously cement unnecessary in the sleeve pipe is extruded, close plug 11 aft closure ring 12 that puts in place and dock with the butt joint 13 of blind plate 14 upper ends; The salvaging assembly fuses, and continues to suppress to cut off and closes shear pin 3, promotes to close the cover 4 descending cementing holes 5 of closing simultaneously; Be lowered to fishing tool and will salvage the assembly proposition, stay the well assembly to stay in the well, operation is accomplished.
Claims (2)
1. circulation segmentation cementing unit comprises and stays the well assembly and salvage assembly, stays the well assembly to comprise top connection (1), outer tube (2), closes shear pin (3), closes cover (4), opens shear pin (7), opens cover (8), lock sleeve (10), external packer of pipe (15); The salvaging assembly comprises closes plug (11), lock ring (12), blind plate (14), it is characterized in that: outer tube (2) upper end is threaded outer tube (2) lower end tube connector external packer (15) with top connection (1); A plurality of cementings hole (5) is arranged on the outer tube (2); Close cover (4) and be positioned at outer tube (2) top inner chamber body, it is fixing by closing shear pin (3) and outer tube (2) to close cover (4), and closing below the cover (4) is to open cover (8); It is fixing with outer tube (2) by opening shear pin (7) to open cover (8); Opening on cover (8) and the outer tube (2) has intercommunicating pore (6), and the lateral communication hole (6) of outer tube (2) is suppressed bloated sealing of hole with external packer of pipe (15) upper end and is communicated with, and opening below the cover (8) is lock sleeve (10); Lock sleeve has the gingival cyst of mucous gland in the newborn button in (10); Opening cover (8) lower end has lock pawl (9), and the salvaging assembly is followed successively by from top to bottom closes plug (11), lock ring (12), blind plate (14), and blind plate (14) upper end has butt joint (13) to be connected with lock ring (12).
2. circulation segmentation cementing unit according to claim 1 is characterized in that: opening cover (8) lower end has lock pawl (9) tight with the gingival cyst of mucous gland in the newborn padlock of lock sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203560219U CN202325390U (en) | 2011-08-23 | 2011-08-23 | Circulating section well cementing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203560219U CN202325390U (en) | 2011-08-23 | 2011-08-23 | Circulating section well cementing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325390U true CN202325390U (en) | 2012-07-11 |
Family
ID=46437372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203560219U Expired - Fee Related CN202325390U (en) | 2011-08-23 | 2011-08-23 | Circulating section well cementing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110234A (en) * | 2014-07-31 | 2014-10-22 | 于世江 | Method for well cementation drilling-free blind plate circulating well cementation of horizontal well |
| CN104121001A (en) * | 2014-07-31 | 2014-10-29 | 于世江 | Drilling-free cement injecting device for horizontal well |
| CN108361001A (en) * | 2018-01-10 | 2018-08-03 | 河南中源化学股份有限公司 | A kind of deep trona drilling well exploitation cementing stage technique |
-
2011
- 2011-08-23 CN CN2011203560219U patent/CN202325390U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110234A (en) * | 2014-07-31 | 2014-10-22 | 于世江 | Method for well cementation drilling-free blind plate circulating well cementation of horizontal well |
| CN104121001A (en) * | 2014-07-31 | 2014-10-29 | 于世江 | Drilling-free cement injecting device for horizontal well |
| CN104110234B (en) * | 2014-07-31 | 2017-06-30 | 于世江 | Horizontal cementing exempts to bore blind plate circulation cementing method |
| CN108361001A (en) * | 2018-01-10 | 2018-08-03 | 河南中源化学股份有限公司 | A kind of deep trona drilling well exploitation cementing stage technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 257000 Feicheng Road, Dongying District, Shandong, No. 33, No. Patentee after: Dongying Jing Chi new energy technology LLC Address before: 257081 Feicheng Road, Shengli Industrial Park, Dongying, Shandong, No. 33, No. Patentee before: DONGYING DONGYING DISTRICT HEGUANG TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170105 Address after: 257000 Feicheng Road, Dongying District, Shandong, No. 33, No. Patentee after: Dongying Jing Chi new energy technology LLC Address before: 257081 Feicheng Road, Shengli Industrial Park, Dongying, Shandong, No. 33, No. Patentee before: DONGYING DONGYING DISTRICT HEGUANG TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20180823 |