CN107965291A - Well cementation, pressure break, production integration tubing string rubber plug - Google Patents
Well cementation, pressure break, production integration tubing string rubber plug Download PDFInfo
- Publication number
- CN107965291A CN107965291A CN201711209826.9A CN201711209826A CN107965291A CN 107965291 A CN107965291 A CN 107965291A CN 201711209826 A CN201711209826 A CN 201711209826A CN 107965291 A CN107965291 A CN 107965291A
- Authority
- CN
- China
- Prior art keywords
- rubber plug
- tubing string
- seeker
- pressure break
- well cementation
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Abstract
The invention discloses a kind of well cementation, pressure break, production integration tubing string rubber plug, when use, is stuck at float collar, including body, seeker, snap ring, metal clips and the scraping wing；Body is column, its lower end is spirally connected with seeker, and seeker is installed in groove circumferentially arranged with groove, snap ring；Boss is formed on the outer surface of body；The scraping wing is arranged at the upside of boss, is coated on the side of body；The scraping wing is cylindrical shape, its outer wall is axially disposed multiple skirt bodies；Multiple skirt bodies have been wholly or partially embedded into metal clips.One kind well cementation, pressure break, production integration tubing string rubber plug, during well cementing operation, the rubber plug scraping wing has the cement that sufficient intensity is capable of scraping internal surface of sleeve pipe, at the same time, it, can be by having the fracturing sliding bush of reducing, while the cooperation of snap ring, seeker and float collar structure with good shrinkage on tubing string, it can realize anti-rotation function and realize limit function.
Description
Technical field
The present invention relates to the untraditional reservoir Well Completion Engineering of Oil Reservoirs such as oil, natural gas field, and in particular to one kind well cementation, pressure
Split, production integration tubing string rubber plug.
Background technology
Untraditional reservoir completion mode is mainly 81/2 " 51/2 under wellbore " casing cementing at present, is penetrated in completion rear sleeve
Hole lower leaf fracturing tool, carries out pressing crack construction.But the completion mode can produce a large amount of discarded objects in drilling process, therefore
It is necessary to optimize the casing programme, the casing programme of final optimization pass is 61/8 " 31/2 under wellbore " casing, passes through optimization
Drilling wastes discharge about 40% or so can be reduced, 51/2 " casing changes 31/2 " casing saves casing expense, forms well cementation, pressure
Split, production integration tubing string, save well construction period.
However, such change will bring certain difficulty to well cementing operation, which makees different from conventional cementing
Industry, conventional cementing rubber plug use in the identical casing of internal diameter, without obvious reducing in casing, and cement the well, pressure break, production integration
Tubing string rubber plug is ensureing that scraping internal surface of sleeve pipe cement at the same time can be by multiple fracturing sliding bushs for having undergauge, therefore the rubber plug exists
While ensureing sufficient intensity in design process, should have flexible well.
The content of the invention
It is an object of the invention to：A kind of well cementation, pressure break, production integration tubing string rubber plug are provided, in well cementing operation
Cheng Zhong, the rubber plug scraping wing have the cement that sufficient intensity is capable of scraping internal surface of sleeve pipe, meanwhile, it is with good shrinkage, energy
By there is the fracturing sliding bush of reducing on tubing string.
For this reason, technical scheme is as follows：
A kind of well cementation, pressure break, production integration tubing string rubber plug, when use, are stuck at float collar, including body, seeker,
Snap ring, metal clips and the scraping wing；
The body is column, its lower end is spirally connected with seeker, and the seeker is circumferentially arranged with groove, the snap ring peace
In the groove；Boss is formed on the outer surface of the body；The scraping wing is arranged at the upside of the boss, cladding
In the side of body；
The scraping wing is cylindrical shape, its outer wall is axially disposed multiple skirt bodies；The multiple skirt body is all or part of
It is embedded with metal clips.
Further, the seeker is cylindrical, and boss I is longitudinally formed with its side wall.Revolved available for rubber plug is prevented
Turn.It is preferred that the quantity of boss I for one, it is two or more.
Further, the metal clips is horn-like sheet metal, or top is that horn-like sheet metal lower part is Disjunct distribution
Strip sheet metal.
Further, the maximum outside diameter of the skirt body of the scraping wing is several sizes, embedded only in the skirt body of size maximum
There is metal clips.
Further, the snap ring is annular in shape, single-open.
Further, the front end face of the seeker is convex spherical.
The well cementation, pressure break, production integration tubing string are had the following advantages compared with prior art with rubber plug：
1) realize when the structure of the scraping wing can guarantee that rubber plug by there is the fracturing sliding bush of multiple necking downs on tubing string and return well
Contracting, passes through sliding sleeve；
2) metal clips that the scraping wing embeds has high resiliency, can play a supporting role to scraping wing structure, raising is scraped
Cut wing intensity；
3) design of 2 structure of snap ring, makes rubber plug realize locking when being located on matched float collar, is not in upper top
Phenomenon；
4) structure of seeker has anti-rotating function, is not in turn when rubber plug is located on matched float collar
It is dynamic.
Brief description of the drawings
Fig. 1 is well cementation provided by the invention, pressure break, the semi-cutaway of production integration tubing string rubber plug；
Fig. 2 is the bottom view of seeker；
Fig. 3 is the structure diagram that locking state is formed when rubber plug is seated in float collar in Fig. 1.
Embodiment
Technical scheme is described in detail below in conjunction with the drawings and specific embodiments.
A kind of well cementation, pressure break, production integration tubing string rubber plug, when use, are stuck at float collar, including body 5, seeker
1st, snap ring 2, metal clips 3 and the scraping wing 4；Body 5 is column, its lower end is spirally connected with seeker 1, seeker 1 circumferentially arranged with
Groove, snap ring 2 are installed in groove, and snap ring 2 is annular in shape, single-open；Boss is formed on the outer surface of body 5；The scraping wing 4 is set
The upside of boss is placed in, is coated on the side of body 5；The scraping wing 4 is cylindrical shape, its outer wall is axially disposed multiple skirt bodies；
Multiple skirt bodies have been wholly or partially embedded into metal clips 3.Seeker 1 is cylindrical, and front end face is convex spherical, along vertical on its side wall
To formed with boss I.Rotated available for rubber plug is prevented.Again when it is implemented, the quantity of boss I for one, it is two or more.
Metal clips 3 is horn-like sheet metal, or top is the strip metal that horn-like sheet metal lower part is Disjunct distribution
Piece.
As one embodiment of the present of invention, the maximum outside diameter of the skirt body of the scraping wing is several sizes, only maximum in size
Skirt body in be embedded with metal clips 3.
During use：By the tripping in well cementation of construction layer position, pressure break, production integration tubing string, after tubing string is lowered into design position, open
Begin to carry out well cementing operation, put into rubber plug provided by the invention and carry out cement mortar replacement, in displacement process, pass through metal on rubber plug
Shrapnel 3 supports the scraping wing 4 to make it have good be bonded to play the role of cement mortar on scraping casing with casing, when needs are by there is contracting
During the fracturing sliding bush in footpath, easily shunk since 4 body of the scraping wing is thin, at this moment together shrink can be smoothly for the scraping wing and metal clips
By the undergauge in fracturing sliding bush, after fracturing sliding bush, under the action of metal clips, the thin-walled scraping wing can rapidly recover
Full size, continues scraping casing, several perseverations more than, until rubber plug is slided by all pressure breaks for having reducing on tubing string
Covering, float collar position on arrival tubing string, the boss I on rubber plug on seeker coordinates with float collar realizes anti-rotation, meanwhile, the card on rubber plug
Ring is realized with float collar and locked, and prevents from pushing up on rubber plug.
Claims (7)
1. a kind of well cementation, pressure break, production integration tubing string rubber plug, when use, is stuck at float collar, it is characterised in that：Including body
(5), seeker (1), snap ring (2), metal clips (3) and the scraping wing (4)；
The body (5) is column, its lower end is spirally connected with seeker (1), and the seeker (1) is described circumferentially arranged with groove
Snap ring (2) is installed in the groove；Boss is formed on the outer surface of the body (5)；The scraping wing (4) is arranged at described
The upside of boss, is coated on the side of body (5)；
The scraping wing (4) is cylindrical shape, its outer wall is axially disposed multiple skirt bodies；The multiple skirt body is completely or partially embedding
Enter to have metal clips (3).
2. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 1, it is characterised in that：The seeker (1)
It is cylindrical, boss I is longitudinally formed with its side wall.
3. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 2, it is characterised in that：The number of the boss I
Measure for one, it is two or more.
4. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 1, it is characterised in that：The metal clips
(3) it is horn-like sheet metal, or top is the strip sheet metal that horn-like sheet metal lower part is Disjunct distribution.
5. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 1, it is characterised in that：The skirt of the scraping wing
The maximum outside diameter of body is several sizes, and metal clips (3) is only embedded with the skirt body of size maximum.
6. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 1, it is characterised in that：The snap ring (2) is in
Ring-type, single-open.
7. well cementation, pressure break, production integration tubing string rubber plug as claimed in claim 1, it is characterised in that：The seeker (1)
Front end face be convex spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209826.9A CN107965291A (en) | 2017-11-28 | 2017-11-28 | Well cementation, pressure break, production integration tubing string rubber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209826.9A CN107965291A (en) | 2017-11-28 | 2017-11-28 | Well cementation, pressure break, production integration tubing string rubber plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107965291A true CN107965291A (en) | 2018-04-27 |
Family
ID=61997880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711209826.9A Pending CN107965291A (en) | 2017-11-28 | 2017-11-28 | Well cementation, pressure break, production integration tubing string rubber plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965291A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU599052A1 (en) * | 1973-10-11 | 1978-03-25 | Полтавское отделение Украинского научно-исследовательского геологоразведочного института | Device for building cement bridges in casing pipe column |
| CN2711383Y (en) * | 2004-07-07 | 2005-07-20 | 大庆石油管理局 | Well cementation rubber stopper used for casing hole-drilling |
| CN201902193U (en) * | 2010-12-14 | 2011-07-20 | 胜利油田长龙橡塑有限责任公司 | Well cementation rubber plug |
| CN203716927U (en) * | 2014-03-04 | 2014-07-16 | 新疆华油技术服务股份有限公司 | Floating well completion rubber plug |
| WO2014197832A1 (en) * | 2013-06-06 | 2014-12-11 | Halliburton Energy Services, Inc. | Well system cementing plug |
| CN204532245U (en) * | 2015-04-07 | 2015-08-05 | 中国石油集团渤海钻探工程有限公司 | Full-bore sizing collar falls plug voluntarily |
| CN206274005U (en) * | 2016-12-07 | 2017-06-23 | 中国石油集团西部钻探工程有限公司 | Pawl Self-locking rubber cork and pawl self-locking device |
-
2017
- 2017-11-28 CN CN201711209826.9A patent/CN107965291A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU599052A1 (en) * | 1973-10-11 | 1978-03-25 | Полтавское отделение Украинского научно-исследовательского геологоразведочного института | Device for building cement bridges in casing pipe column |
| CN2711383Y (en) * | 2004-07-07 | 2005-07-20 | 大庆石油管理局 | Well cementation rubber stopper used for casing hole-drilling |
| CN201902193U (en) * | 2010-12-14 | 2011-07-20 | 胜利油田长龙橡塑有限责任公司 | Well cementation rubber plug |
| WO2014197832A1 (en) * | 2013-06-06 | 2014-12-11 | Halliburton Energy Services, Inc. | Well system cementing plug |
| CN203716927U (en) * | 2014-03-04 | 2014-07-16 | 新疆华油技术服务股份有限公司 | Floating well completion rubber plug |
| CN204532245U (en) * | 2015-04-07 | 2015-08-05 | 中国石油集团渤海钻探工程有限公司 | Full-bore sizing collar falls plug voluntarily |
| CN206274005U (en) * | 2016-12-07 | 2017-06-23 | 中国石油集团西部钻探工程有限公司 | Pawl Self-locking rubber cork and pawl self-locking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203925413U (en) | A kind ofly exempt to bore formula bridging plug based on solvable slips | |
| CN201031634Y (en) | Radial variable casing tube centralizer | |
| CN204457637U (en) | Hydraulic variable diameter milling pipeline scraper | |
| CN202249929U (en) | Combined self-locking variable-diameter rubber plug for sleeve | |
| CN205638338U (en) | Hourglass packer is looked for to sleeve pipe | |
| CN102373888A (en) | Sleeve floating coupling and well cementing method | |
| CN107965291A (en) | Well cementation, pressure break, production integration tubing string rubber plug | |
| CN201794527U (en) | Casing float collar | |
| CN105134131A (en) | Well cementation casing or tubing sliding sleeve without limit on number of segments or clusters | |
| CN105804690B (en) | In-situ leaching process drilling inverse water mud device | |
| CN201184135Y (en) | Small sleeve pipe pillar restoring sleeve loss well | |
| CN103670326B (en) | Open hole packer | |
| CN203008808U (en) | Casing centralizer with variable diameter and rotational flow function | |
| CN201246115Y (en) | Seal plug-in joint | |
| CN202348193U (en) | Radius-variable expansion tool for sleeve damage of oil-gas well | |
| CN214499018U (en) | FDC all-metal soluble fracturing nipple | |
| CN200940451Y (en) | Sleeve hydraulic variable diameter centralizer | |
| CN202745730U (en) | Hydraulic centering device | |
| CN219932122U (en) | Repeated fracturing tubular column | |
| CN204716195U (en) | High strength cementing plug | |
| CN2550489Y (en) | Variable diameter sleeve centralizer | |
| CN216406749U (en) | Hanger fracturing tieback instrument | |
| CN203452749U (en) | Hydraulic anti-falling type expansion pipe input device | |
| CN204851164U (en) | Return and insert well cementation sealing device | |
| CN204175262U (en) | A kind of underground throttle device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180427 |
|
| WD01 | Invention patent application deemed withdrawn after publication |