CN101725330B - Drilling-and-plugging-free well fixing method and tool - Google Patents
Drilling-and-plugging-free well fixing method and tool Download PDFInfo
- Publication number
- CN101725330B CN101725330B CN 200910019495 CN200910019495A CN101725330B CN 101725330 B CN101725330 B CN 101725330B CN 200910019495 CN200910019495 CN 200910019495 CN 200910019495 A CN200910019495 A CN 200910019495A CN 101725330 B CN101725330 B CN 101725330B
- Authority
- CN
- China
- Prior art keywords
- plug
- cementing
- drilling
- plugging
- well
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a drilling-and-plugging-free well fixing operation method in the well completion process of an oil well, a gas well and a water well, in particular to drilling-and-plugging-free well fixing tool. The drilling-and-plugging-free well fixing tool mainly comprises a drilling-and-plugging-free seal grading hoop and a salvageable rubber plug, wherein the drilling-and-plugging-free seal grading hoop comprises an upper joint, a cement injecting cylinder, a switch slide sleeve, a closed spring, a center pipe, a lower joint and a sleeve pipe outer packer; and the salvageable rubber plug comprises a rubber plug ring, a salvageable head, a connecting center pipe and a connection locking jaw. The drilling-and-plugging-free well fixing method is realized by adopting the drilling-and-plugging-free seal grading hoop and the salvageable rubber plug. The tool and the method can realize drilling-and-plugging-free well fixation and overcome the defects of the conventional grading well fixing technology, for example, a closed sleeve can be damaged easily by drilling in the drilling and plugging process and the diameter of the well residual part after drilling and plugging is irregular. In addition, the tool and the method improve the filling and sand preventing success rate of the opened gravel of a horizontal well.
Description
One, technical field:
The present invention relates to exempt from a kind of oil gas water well Completion Operations bore plug well cementing operation instrument, particularly a kind of brill plug cementing tool of exempting from.
Two, background technology:
along with constantly carrying out of oil field development, domestic each elephant all enters the exploitation middle and later periods, horizontal well development is that a comprehensive input cost is low, profitable novel oilfield development approach, be specially adapted to the exploitation of oil field old remaining oil, for the horizontal well that shakes out, present state-of-the-art anti-sand method is open-hole gravel pack, supporting conventional fraclional well cementing technology exists in boring the plug process and easily bores the bad cover of closing in horizontal well open-hole gravel pack sand control technique application process, stay the defectives such as well part latus rectum is irregular after boring plug, cause the failure of horizontal well open-hole gravel pack sand control.
Three, summary of the invention:
Purpose of the present invention is exactly in view of the foregoing defects the prior art has, and a kind of plug cementing tool of exempting to bore is provided, and the well open hole filling sand control of improving the standard is constructed into power, and the present invention is not only applicable to horizontal well, can be applicable to inclined shaft and straight well yet.
Of the present inventionly exempt to bore the plug cementing tool and mainly exempt to bore plug packing sizing collar and one by one and can salvage plug and form; Exempt to bore plug packing sizing collar and have a top connection that is connected with sleeve pipe; The lower end of the top connection that is connected with sleeve pipe is fixedly connected with the cementing cylinder, has at least one cementing hole on described cementing cylinder excircle direction, consists of outer cementing passage; Be provided with switching sliding sleeve between the lower end of the described top connection that is connected with sleeve pipe and cementing cylinder; The spring of closing that is positioned at described switching sliding sleeve lower end and cementing cylinder; Described cementing cylinder lower end is fixedly connected with lower contact; Described lower contact lower end splicing sleeve external packer has in the top connection of described external casing packer and suppresses swollen sealing of hole in sleeve pipe; The inboard of the described top connection that is connected with sleeve pipe, switching sliding sleeve and lower contact is provided with central tube, have at least one cementing hole on described central tube, cementing passage in consisting of, described inner diameter of centerpipe is to being a blind hole, at least one side direction through hole is arranged at described blind hole bottom, suppress swollen sealing of hole in the top connection of described side direction through hole and external casing packer and be communicated with, be processed with the connection box in described central tube blind hole; The described top connection that is connected with sleeve pipe, cementing cylinder, switching sliding sleeve, close spring, lower contact, central tube, external casing packer and form and exempt to bore plug packing sizing collar; Can salvage plug and have a plug ring; A fishing head that is fixed in described plug ring; A connection central tube that is fixed on described fishing head lower end; One is positioned at the described fishing head lower end connection lock pawl outer with being connected central tube; Described plug ring, fishing head, connection central tube, connection lock pawl form can salvage plug.
The fishing head upper end of the above-mentioned plug salvaged is processed with salvages button.
The connection lock pawl of the above-mentioned plug salvaged is processed with the connection pin thread outward.
A kind of method of exempting to bore the plug well cementing operation of the present invention comprises the following steps:
A. with a kind of exempt to bore the plug cementing tool exempt from bore plug packing sizing collar and be connected to by working design and exempt to bore in plug well cementation tubing string;
B. will exempt to bore plug well cementation tubing string down to the precalculated position;
C. sleeve pipe is suppressed the setting external casing packer of exempting to bore on plug packing sizing collar;
D. continue to suppress to open and exempt to bore the switching sliding sleeve of filling on the packing sizing collar;
E. cementing;
F. discharge and to drag for the plug bruising;
G. descend drilling rod to dock with the salvaging button that can drag on plug;
H. mention on and can drag for plug and the central tube of exempting to bore on plug packing sizing collar;
The switching sliding sleeve of i. exempting to bore on plug packing sizing collar is closed outer cementing passage closing under spring action.
The invention has the beneficial effects as follows: adopt above-mentioned tool and method, can realize exempting from boring the plug well cementation, solve and stay the defectives such as well part latus rectum is irregular, the well open-hole gravel pack of improving the standard sand control success rate after conventional fraclional well cementing technology exists easy brill badly to close cover, brill plug in brill plug process.
Four, description of drawings:
Accompanying drawing 1 be of the present invention exempt to bore plug packing sizing collar partly cut open structural representation;
Accompanying drawing 2 be of the present invention salvage plug partly cut open structural representation;
In upper figure: 1-top connection; 2-cementing cylinder; 3-switching sliding sleeve; 4-close spring; 5-lower contact; 6-central tube; 7-external casing packer; 8-plug ring; 9-fishing head; 10-connection central tube; 11-connect and lock pawl.
Five, the specific embodiment:
1-2 by reference to the accompanying drawings, the invention will be further described:
Of the present inventionly a kind ofly exempt to bore the plug cementing tool and formed by two parts, exempt to bore plug packing sizing collar and one for one and can salvage plug; Exempt to bore plug packing sizing collar and have a top connection that is connected with sleeve pipe 1; A cementing cylinder 2 that is connected in described top connection lower end has at least one cementing hole on described cementing cylinder 2 excircle directions, consist of outer cementing passage; A switching sliding sleeve 3 that is positioned at described top connection 1 lower end and cementing cylinder 2; One be positioned at described switching sliding sleeve 3 lower ends and cementing cylinder 2 close spring 4; A lower contact 5 that is fixed on described cementing cylinder 2 lower ends; An external casing packer 7 that is fixed on described lower contact 5 lower ends has in the top connection of described external casing packer 7 and suppresses swollen sealing of hole; A central tube 6 that is positioned at described top connection 1, switching sliding sleeve 3 and lower contact 5, have at least one cementing hole on described central tube 6, cementing passage in consisting of, it is radially a blind hole in described central tube 6, at least one side direction through hole is arranged at described blind hole bottom, suppress swollen sealing of hole in sleeve pipe in the top connection of described side direction through hole and external casing packer 7 and be communicated with, be processed with the connection box in described central tube 6 blind holes; Described top connection 1, cementing cylinder 2, switching sliding sleeve 3, close spring 4, lower contact 5, central tube 6, external casing packer 7 and form and exempt to bore plug packing sizing collar; Can salvage plug and have a plug ring 8; A fishing head 9 that is fixed in described plug ring 8, described fishing head 9 upper ends are processed with salvages button; A connection central tube 10 that is fixed on described fishing head 9 lower ends; One is positioned at the described fishing head 9 lower ends connection lock pawl 11 outer with being connected central tube 10, the outer connection pin thread that is processed with of described connection lock pawl 11; Described plug ring 8, fishing head 9, connection central tube 10, connection lock pawl 11 form can salvage plug.
Wherein, external casing packer 7 can adopt existing device with response function, the external casing packer that adapts most with the present embodiment is disclosed in the utility model patent of No. ZL02206944.5 " balance pressure difference type sleeve external packer " by name, due in the prospectus of above-mentioned patent operating principle and the working method to associated mechanisms done detailed explanation, thereby here only just the working method relevant with the present invention describe.
a kind of drilling-and-plugging-free well fixing method of the present embodiment is undertaken by following program, with a kind of exempt to bore the plug cementing tool exempt from bore plug packing sizing collar and be connected to by working design and exempt to bore in plug well cementation tubing string, to exempt to bore plug well cementation tubing string behind the precalculated position, the pump truck group is suppressed the setting external casing packer of exempting to bore on plug packing sizing collar in sleeve pipe, after the setting end of external casing packer, continue to suppress to open and exempt to bore the switching sliding sleeve of filling on the packing sizing collar, then carry out cementing practice, after the quantity of the cement injected reaches design flow, release can be dragged for plug and bruising, lower drilling rod docks with the salvaging button that can drag on plug, mention at last and can drag for plug and the central tube of exempting to bore on plug packing sizing collar, the switching sliding sleeve of exempting from simultaneously to bore on plug packing sizing collar is closed outer cementing passage closing under spring action.
The above embodiment of the present invention is only for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, obviously can make other changes in different forms on the basis of the above description, need not also can't give all embodiments exhaustive here.And these apparent variations or change still are among protection scope of the present invention.
Claims (3)
1. exempt to bore the plug cementing tool for one kind, it is characterized in that: mainly exempt to bore plug packing sizing collar and one by one and can salvage plug and form; Exempt to bore plug packing sizing collar and have a top connection that is connected with sleeve pipe (1); The lower end of the top connection that is connected with sleeve pipe (1) is fixedly connected with cementing cylinder (2), has at least one cementing hole on described cementing cylinder (2) excircle direction, consists of outer cementing passage; Be provided with switching sliding sleeve (3) between the lower end of the described top connection that is connected with sleeve pipe (1) and cementing cylinder (2); One be positioned at described switching sliding sleeve (3) lower end and cementing cylinder (2) close spring (4); Described cementing cylinder (2) lower end is fixedly connected with lower contact (5); Described lower contact (5) lower end splicing sleeve external packer (7) has in the top connection of described external casing packer (7) and suppresses swollen sealing of hole in sleeve pipe; The inboard of the described top connection that is connected with sleeve pipe (1), switching sliding sleeve (3) and lower contact (5) is provided with central tube (6), have at least one cementing hole on described central tube (6), cementing passage in consisting of, it is radially a blind hole in described central tube (6), at least one side direction through hole is arranged at described blind hole bottom, suppress swollen sealing of hole in the top connection of described side direction through hole and external casing packer (7) and be communicated with, be processed with the connection box in described central tube (6) blind hole; The described top connection that is connected with sleeve pipe (1), cementing cylinder (2), switching sliding sleeve (3), close spring (4), lower contact (5), central tube (6), external casing packer (7) and form and exempt to bore plug packing sizing collar; Can salvage plug and have a plug ring (8); A fishing head (9) that is fixed in described plug ring (8); A connection central tube (10) that is fixed on described fishing head (9) lower end; One is positioned at described fishing head (9) the lower end connection lock pawl (11) outer with being connected central tube (10); Described plug ring (8), fishing head (9), connection central tube (10), connection lock pawl (11) form can salvage plug.
2. according to claim 1ly exempt to bore the plug cementing tool, it is characterized in that: described fishing head (9) upper end of salvaging plug is processed with salvages button.
3. the brill plug cementing tool of exempting from according to claim 1, is characterized in that: the described outer connection pin thread that is processed with of connection lock pawl (11) of salvaging plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910019495 CN101725330B (en) | 2009-11-03 | 2009-11-03 | Drilling-and-plugging-free well fixing method and tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910019495 CN101725330B (en) | 2009-11-03 | 2009-11-03 | Drilling-and-plugging-free well fixing method and tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101725330A CN101725330A (en) | 2010-06-09 |
| CN101725330B true CN101725330B (en) | 2013-06-19 |
Family
ID=42446812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910019495 Active CN101725330B (en) | 2009-11-03 | 2009-11-03 | Drilling-and-plugging-free well fixing method and tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101725330B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071902B (en) * | 2010-11-17 | 2013-04-10 | 东营市友佳石油机械有限公司 | Drilling-free cement filling device for horizontal well |
| CN102787824A (en) * | 2011-05-18 | 2012-11-21 | 中国石油化工集团公司 | Tool and method for injecting cement into top of horizontal well screen pipe without drilling and plugging |
| CN102337853B (en) * | 2011-08-31 | 2015-05-20 | 程显达 | Circulating drilling-free blind plate cementing device |
| CN103835677B (en) * | 2014-03-21 | 2016-08-17 | 青岛吉安泰耐磨密封材料有限公司 | A kind of horizontal well two-stage sealing bruising salvagable completion system |
| CN103835678B (en) * | 2014-03-21 | 2017-02-08 | 青岛吉安泰耐磨密封材料有限公司 | Horizontal well inner-pipe-free drilling-plug-free grading cementing well completion method |
| CN104088599A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Expansion bridge blinding method for outer packer of cement paste filled pipe |
| CN104895523A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气集团公司 | Drilling-plug-free stage cementing device for full hole completion |
| CN104895527A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气集团公司 | Drilling-plug-free cementing device for full hole completion |
| CN104832126A (en) * | 2015-05-15 | 2015-08-12 | 中国石油集团渤海钻探工程有限公司 | Anti-pollution well cementation method suitable for two stage and drilling liner cementation |
| 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 |
| CN108868689B (en) * | 2018-09-18 | 2023-08-29 | 中国石油天然气集团有限公司 | Tail pipe rubber plug device for removing cement paste in sleeve at lower part of tail pipe well cementation choke ring |
| CN111005701A (en) * | 2020-01-14 | 2020-04-14 | 胜利油田利丰稠油技术开发有限公司 | Fishing and fast drilling composite material well fixing and completing tool |
| 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 |
| CN115234192A (en) * | 2022-08-29 | 2022-10-25 | 承德石油高等专科学校 | Flexible packer suitable for directional well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929165Y (en) * | 2006-03-06 | 2007-08-01 | 淄博双通工贸有限责任公司 | Grading cement filling device without drill plug |
| CN101435318A (en) * | 2008-12-17 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Non-drill cementing well method and pipe column |
| CN201310319Y (en) * | 2008-12-16 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Half-way cementing tool without drilling plug |
| CN201310321Y (en) * | 2008-12-17 | 2009-09-16 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Drilling-free cementing stage collar |
| CN201330578Y (en) * | 2009-01-09 | 2009-10-21 | 西部钻探克拉玛依钻井工艺研究院 | A recycling drilling-free cementing tool |
-
2009
- 2009-11-03 CN CN 200910019495 patent/CN101725330B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929165Y (en) * | 2006-03-06 | 2007-08-01 | 淄博双通工贸有限责任公司 | Grading cement filling device without drill plug |
| CN201310319Y (en) * | 2008-12-16 | 2009-09-16 | 西部钻探克拉玛依钻井工艺研究院 | Half-way cementing tool without drilling plug |
| CN101435318A (en) * | 2008-12-17 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Non-drill cementing well method and pipe column |
| CN201310321Y (en) * | 2008-12-17 | 2009-09-16 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Drilling-free cementing stage collar |
| CN201330578Y (en) * | 2009-01-09 | 2009-10-21 | 西部钻探克拉玛依钻井工艺研究院 | A recycling drilling-free cementing tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101725330A (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725330B (en) | Drilling-and-plugging-free well fixing method and tool | |
| CN101078341B (en) | Oil gas water well open hole filling sand prevention completion method and tool | |
| CN102606107B (en) | Halfway cementing well completion tube column and halfway cementing method | |
| CN207080207U (en) | A kind of oil field is every excavating technology tubing string | |
| CN104695915A (en) | Sand washing and prevention integrated completion pipe string and control method thereof | |
| CN201705276U (en) | Well completion and flow string of horizontal well | |
| CN204024592U (en) | Bruising shut-in valve in down-hole for well cementation | |
| CN205330611U (en) | Mining hole packer | |
| CN104895526A (en) | Hydraulic cement basket | |
| CN205778740U (en) | A kind of seesaw type sliding sleeve opener and etc. diameter through sleeve sliding sleeve | |
| CN105672934A (en) | Hydraulic-cylinder type enclosed anti-creep packer | |
| CN205532453U (en) | Novel oil pipe blanking plug in pit | |
| CN201747322U (en) | Plug drilling free cementing device | |
| CN103452524A (en) | Electrically-flushable packer and electrically-flushable insert seal for flooding well | |
| CN101839117B (en) | Annulus safety valve | |
| CN100412313C (en) | Plug-free cement filling method for well fixing | |
| CN105298443A (en) | Oil pipe float valve and blowout prevention, gas lift and fracture combined operation method for underbalance well completion oil pipe descending | |
| CN204552708U (en) | One rushes sand prevention integrated completion tubular column | |
| CN102011562A (en) | Construction process for ground mechanical control type well cementing tool | |
| CN203285391U (en) | Pressure-differential oil jacket communication valve | |
| CN210068069U (en) | Anti-leakage double-sealing well-flushing packer | |
| CN104153740A (en) | Differential pressure type oil sleeve communication valve | |
| CN205477528U (en) | Novel well head coupling blocks up valve | |
| CN107939331B (en) | Wellhead protection device for water injection well | |
| CN204960820U (en) | Easily spout multi -functional formation testing completion pipe string of easy blind hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |