CN202788741U - Completion tool free of drilling and plugging - Google Patents
Completion tool free of drilling and plugging Download PDFInfo
- Publication number
- CN202788741U CN202788741U CN 201220354215 CN201220354215U CN202788741U CN 202788741 U CN202788741 U CN 202788741U CN 201220354215 CN201220354215 CN 201220354215 CN 201220354215 U CN201220354215 U CN 201220354215U CN 202788741 U CN202788741 U CN 202788741U
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- Prior art keywords
- urceolus
- hole
- seat
- outer barrel
- inner sleeve
- 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
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a completion tool free of drilling and plugging. The completion tool comprises an outer barrel and an inner fishing sleeve. An upper joint and a lower joint are respectively arranged at the upper end and the lower end of the outer barrel, flow channels distributed radially is arranged in the middle of the outer barrel, a packer is arranged on the lower portion of the outer barrel and is matched with an expansion sealing pressure passage arranged on the outer barrel, the inner fishing sleeve is provided with a through hole fittingly communicated with the flow channels of the middle of the outer barrel, and the outer barrel and the inner fishing sleeve are in seal fit with each other in a locked manner by the aid of releasing dowels arranged peripherally. The completion tool is characterized in that an opening seat is fixed to the through hole of the inner fishing sleeve via a dowel and is in seal fit with the through hole, a closing seat is arranged on the inner fishing sleeve, is positioned above the opening seat and is in sliding seal fit with the through hole below the closing seat, and a check valve is arranged at the bottom of the inner fishing sleeve. The completion tool has the advantages that cement leakage caused when cementing channels are opened in advance or are not closed tightly is reduced, excessive fishing force and a suction effect are avoided, and the safety is guaranteed when the tool is used in medium and deep wells.
Description
Technical field
The utility model relates to a kind of Oil/gas Well brill completion and fills in completion tool with the brill of exempting from of field of tool.
Technical background
Routine screen casing crest water flooding bricklayer’s skill is to need to bore plug after the well cementation of screen casing top finishes, and the vibration of drill bit causes the destruction of near the cement sheath of target spot even tubing easily in the brill plug process, causes scattering and disappearing of oil, gas, water breakthrough or steam heat; Bore plug and thoroughly will not stay burr at casing wall, affect being lowered to of later stage power tool; Chip easily causes bottom well-flushing tool jams, can't set up well-flushing passage etc.Employing is exempted to bore the plug technology and can be addressed this problem.
Abroad (such as TAM company, Weatherford company, BakerHuges company) technology is to use the hydraulic pressure well cementing valve at completion tubular column, and two packers and a flexible collar are arranged on the inner tube.The major defect of this technology is that often need behind the C.I.P repeatedly to move could be with the cementing pathway closure, sometimes closes unsuccessful even causes down-hole accident, and construction risk is high, is unfavorable for field popularization application.
The applicant has formerly proposed " a kind of drilling-plug-free tool for top cementing of horizontal well sieve tube " (number of patent application: 201120157427.4).It forms by exempting to bore plug instrument, bruising plug and fishing tool.Wherein exempt to bore the plug instrument and comprise lifting sub, plug seat, closure piston, unlatching piston, the swollen sealing switch of packing element, fishing socket, blind plate, packing element; The bruising plug comprises rubber and body; Fishing tool comprises salvages anchor and slips.This instrument can successfully be avoided boring plug operation and well internal remainder, but the brill plug completion tool of exempting from of this structure comes with some shortcomings:
1. exempt to bore the plug instrument and be lowered in the process, because the bottom is blind plugging, tubing string inside is without fluid column, and inside and outside differential pressure may make the cementing passage open in advance, brings construction risk;
The mud phenomenon of can leaking when 2. the cementing pathway closure is tight;
3. during well vertical depth 〉=2000m, owing to salvage the swabbing effect of inner sleeve and outer inner room, the inner sleeve salvaging is very difficult.
Summary of the invention
The purpose of this utility model provides a kind of safe and reliable exempting from and bores the plug instrument, originally exempts to bore cementing passage that the plug instrument the exists mud that leaks of opening in advance, be not closed completely to solve, and salvages hard problem.
The utility model is achieved through the following technical solutions:
Comprise urceolus and salvage inner sleeve, the urceolus upper and lower side is respectively equipped with lower contact, the middle part of urceolus is provided with radially-arranged runner, the bottom of urceolus is provided with packer, packer cooperates with the swollen seal pressure passage that is located at urceolus, salvage inner sleeve and offer the through hole that cooperates with the runner perforation at urceolus middle part, deblocking pin formation locking by circumferential setting between urceolus and the salvaging inner sleeve is sealed and matched, it is characterized in that: the through hole of salvaging inner sleeve is fixed with by pin opens seat, opening seat is sealed and matched with through hole, a salvaging that is positioned at unlatching seat top puts to be provided with closes seat, closes seat and cooperates with the through hole formation slipper seal of below, and one way valve is arranged at salvaging inner sleeve bottom.
Be positioned at the swollen seal pressure passage that urceolus runner top also is provided with upper packer and cooperates with upper packer, the inner port of swollen seal pressure passage is provided with opening valve.
The upper packer that is located at urceolus runner top is two groups; The salvaging inner sleeve through hole that is located at the runner of urceolus and cooperates with it is 2-8.
This utility model is exempted to bore the plug instrument with original salvaging type and is compared, and has the following advantages:
1. of the present utility model exempt to bore to put in the plug completion tool increased one way valve.Be lowered to that mud can enter in the completion tubular column thus in the process, reduced the risk that the cementing passage is opened in advance, guaranteed the be lowered to safety of instrument at middle-deep well, deep-well;
2. upper tool part has increased anti-cement sinking packer, avoids the not generation of tight hourglass cement phenomenon of instrument cementing pathway closure;
3. be enclosed within the rear landing deblocking that builds the pressure in, avoided that salvaging power is excessive, the generation of swabbing effect.
Description of drawings
Fig. 1 is the plug completion tool structural profile schematic diagram of exempting to bore of the present invention.
Among the figure, 1-top connection 2-upper packer 3-upper packer opening valve 4-salvages inner sleeve 5-and closes a 6-cementing passage 7-unlatching seat 8-deblocking pin 9-pressure channel 10-one way valve 11-lower packet 12-lower contact.
The specific embodiment
Now the utility model will be further described with accompanying drawing in conjunction with the embodiments.
As shown in the figure, this instrument mainly comprises urceolus and salvages inner sleeve 4.The urceolus two ends are with top connection 1 and lower contact 12, and kit connects with the completion tubular series winding by top connection 1, lower contact 12.Two Tubing Packer 2 and upper packer opening valve 3 are arranged at urceolus top, and the bottom is lower packet 11.The tube wall of urceolus be provided with respectively at upper lower packet mating reaction swollen seal pressure passage 9; Have one to be communicated with the inside and outside runner of urceolus between the upper lower packet, runner quantity can be one or more, preferential 2, or be called cementing passage 6.Salvage inner sleeve 4 and be enclosed within the urceolus, and and urceolus between seal is arranged, and fix by deblocking pin 8 and urceolus.Salvage on the inner sleeve 4 and be designed with through hole at cementing passage 6 correspondence positions, through hole is combined with unlatching seat 7, opens seat 7 original states and is maintenance through hole closed condition, and keep the location with pin; Unlatching seat 7 tops are provided with closes seat 5.Salvaging inner sleeve 4 bottoms has an one way valve 10(to substitute original blind plate), fluid can enter in the salvaging inner sleeve 4 from salvaging inner sleeve 4 bottoms, but can't flow out from salvaging inner sleeve 4 bottoms.
Kit is lowered to the completion tubular string and puts in place during use, is lowered in the process drilling fluid and can be entered by one way valve 10 and salvage in the inner sleeve 4, and the instrument inside and outside differential pressure is balanced, and has therefore reduced and has opened the risks that seat 7 is opened in advance.After completion tubular strung pressure, by pressure channel 9 transmission of pressures, lower packet 11 is swollen envelope under setting pressure.Continue rising pressure, open the shop bolt of seat 7 and cut off, it is descending and expose cementing passage 6 to open seat 7, begins well cementing operation this moment.When cementing plug comes downwards to upper packer opening valve 3 in the cement paste displacement process, will touch and open upper packer 2 pressure channels; Then cementing plug continues to come downwards to and closes seat 5, touches to close that seat 5 is descending to make it to close cementing passage 6.Again suppressing in the tubing string expands seals up packer 2, so just can catch and exempt from the above cement paste of drill tools, closes seat 5 problems that are not closed completely even exist, and also can not bring a large amount of cement to leak.Continue to boost, deblocking pin 8 is cut off, it is descending to salvage inner core 4, with the urceolus depressurization, by fishing spear inner sleeve 4 and accessory kit is salvaged well at last.
Claims (3)
1. exempt to bore the plug completion tool for one kind, comprise urceolus and salvage inner sleeve, the urceolus upper and lower side is respectively equipped with lower contact, the middle part of urceolus is provided with radially-arranged runner, the bottom of urceolus is provided with packer, packer cooperates with the swollen seal pressure passage that is located at urceolus, salvage inner sleeve and offer the through hole that cooperates with the runner perforation at urceolus middle part, deblocking pin formation locking by circumferential setting between urceolus and the salvaging inner sleeve is sealed and matched, it is characterized in that: the through hole of salvaging inner sleeve is fixed with by pin opens seat, opening seat is sealed and matched with through hole, a salvaging that is positioned at unlatching seat top puts to be provided with closes seat, close seat and cooperate with the through hole formation slipper seal of below, salvaging the inner sleeve bottom has one way valve.
2. the brill of exempting from as claimed in claim 1 is filled in completion tool, it is characterized in that: be positioned at the swollen seal pressure passage that urceolus runner top also is provided with upper packer and cooperates with upper packer, the inner port of swollen seal pressure passage is provided with opening valve.
3. the brill of exempting from as claimed in claim 2 is filled in completion tool, it is characterized in that: the upper packer that is located at urceolus runner top is two groups; The salvaging inner sleeve through hole that is located at the runner of urceolus and cooperates with it is 2-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354215 CN202788741U (en) | 2012-07-20 | 2012-07-20 | Completion tool free of drilling and plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354215 CN202788741U (en) | 2012-07-20 | 2012-07-20 | Completion tool free of drilling and plugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788741U true CN202788741U (en) | 2013-03-13 |
Family
ID=47816017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220354215 Expired - Fee Related CN202788741U (en) | 2012-07-20 | 2012-07-20 | Completion tool free of drilling and plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788741U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835678A (en) * | 2014-03-21 | 2014-06-04 | 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 |
| CN103835677A (en) * | 2014-03-21 | 2014-06-04 | 青岛吉安泰耐磨密封材料有限公司 | Two-stage sealing bumping-pressure salvageable well completion device for horizontal well |
| CN105298431A (en) * | 2015-10-13 | 2016-02-03 | 中国石油天然气股份有限公司 | Horizontal well touch packing segmented well completion process pipe column |
| CN111101886A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Sectional well cementing tool and technological method |
-
2012
- 2012-07-20 CN CN 201220354215 patent/CN202788741U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835678A (en) * | 2014-03-21 | 2014-06-04 | 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 |
| CN103835677A (en) * | 2014-03-21 | 2014-06-04 | 青岛吉安泰耐磨密封材料有限公司 | Two-stage sealing bumping-pressure salvageable well completion device for horizontal well |
| CN105298431A (en) * | 2015-10-13 | 2016-02-03 | 中国石油天然气股份有限公司 | Horizontal well touch packing segmented well completion process pipe column |
| CN111101886A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Sectional well cementing tool and technological method |
| CN111101886B (en) * | 2018-10-25 | 2023-08-04 | 中国石油化工股份有限公司 | Sectional well cementation tool and process 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: 20130313 Termination date: 20210720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |