CN2746114Y - 4' casing pipe centering guide - Google Patents
4' casing pipe centering guide Download PDFInfo
- Publication number
- CN2746114Y CN2746114Y CN 200420009044 CN200420009044U CN2746114Y CN 2746114 Y CN2746114 Y CN 2746114Y CN 200420009044 CN200420009044 CN 200420009044 CN 200420009044 U CN200420009044 U CN 200420009044U CN 2746114 Y CN2746114 Y CN 2746114Y
- Authority
- CN
- China
- Prior art keywords
- watt
- main body
- push away
- lock
- casing pipe
- 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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Abstract
Disclosed is a 4' casing pipe centering guide belonging to the well-service kit of the field of the petroleum development, comprising a supporter comprising a main body and a locating sleeve, a centering mechanism, a sealing dynamic mechanism and a locking mechanism, and a locating pin arranged between the main body and the locating sleeve. By adopting the technique of pistons, pulling-tiles, locking-tiles, etc, the 4' casing pipe centering guide with the external diameter of 114 mm can be lowered down together with the 4' casing pipe to the scheduled position, and the kit is easily lowered down together with the 4 inch casing to the designed position; then, through being pressed by the ground hydraulic pressure, the piston pushes the pulling-tile to drive the locking-tile to open upwards to attach to the inner wall of a 51/2' casing pipe, and the 4 inch casing is centered to the center of the 51/2' casing pipe; thereby, the even distribution of cement rings can be ensured to greatly increase the quality of well-cementing during the well cementing.
Description
Technical field
The utility model relates to a kind of casing stabbing board, particularly relates to a kind of 4 " casing stabbing boards that improve cementing quality.
Background technology
" sleeve pipe is set upright, and is a steel part with solid shape through processing directly is welded on 4, and " on the sleeve pipe, diameter must reach 116mm, and " the casing cementing quality is better in assurance 4 relatively at present to 4; Like this for 5
1/
2" internal diameter of sleeve pipe requires very high, and drifting difficulty and risk are all very big, in case the well mark has certain flexibility or sleeve pipe that a little distortion is arranged, 4 " sleeve pipe technology will lead to the failure down; Promptly allowing to be implemented as merit, need increase certain investment again, add 4, " sleeve pipe always cementing quality is undesirable, causes technology can not reach the purpose of geology construction.
Summary of the invention:
The purpose of this utility model is to provide a kind of 4 " casing stabbing board; adopted piston, pushed away watt and technology such as lock watt; external diameter has only 114mm; with 4, and " sleeve pipe is behind the precalculated position, this instrument is easy to and 4, and " sleeve pipe one removes design attitude; suppress by ground hydraulic afterwards, thereby makes piston push away watt drive lock watt up opening, and clings to 5
1/
2" on the internal surface of sleeve pipe, " sleeve pipe is set upright 5 with 4
1/
2" middle of sleeve pipe guarantees 4 " sleeve pipes and 5
1/
2" the annular space cementing concrete ring of sleeve pipe is even, can effectively solve the problem that prior art exists.
Above-mentioned purpose adopts following technical proposals to realize:
A kind of 4 " casing stabbing board; include the supporter that main body 1, positioning sleeve 11 formed; 11 of main body 1 and positioning sleeves are provided with alignment pin 12; also include righting mechanism, sealed motive force mechanism and retaining mechanism; described righting mechanism by steady nail 2, compressing tablet 3, lock watts 4 and push away watts 5 and constitute; compressing tablet 3 is located on the main body 1,1 of compressing tablet 3 and main body are provided with steady nail 2, lock watts 4 with push away watts 5 and be located on the main body 1, lock watt 4 one ends are connected with compressing tablet 3, the other end is provided with the conical surface, pushes away watt 5 one ends and is provided with the conical surface and joins with lock watt 4 set conical surfaces, push away watts 5 and 1 of main body be provided with steady nail 2; Described sealed motive force mechanism includes pushing sleeve 6, sealing ring 7, piston 8, sealing ring 9 and steel loop 10, pushing sleeve 6 is located on the main body 1, one end with push away watts 5 and join, the other end links to each other with piston 8 on being located at main body 1,1 of piston 8 and main body are provided with sealing ring 9 and steel loop 10; Described retaining mechanism by unidirectional pin 13 with push away watts 5 and constitute, unidirectional pin 13 is located at and is pushed away watts 5 and 1 of main body.
Piston 8, sealing ring 9 compress the location with steel loop by positioning sleeve 11.
Compressing tablet 3 is with to push away watts 5 location fixing by steady nail 2, surely follows closely 2 and surely follows closely for nylon.
Push away watt 5 friction lock connections mutually after 13 of unidirectional pins are motion.
The utility model 4 " casing stabbing board has the following advantages:
1. the utility model 4 " casing stabbing board and 4 " sleeve pipe directly links to each other and is lowered to 5
1/
2" in the sleeve pipe, owing to adopted the lock tile structure, after suppressing, lock watt radially release supports 5
1/
2" on the internal surface of sleeve pipe, can " sleeve pipe be set upright 5 with 4
1/
2" middle of sleeve pipe guarantees 4 " sleeve pipes and 5
1/
2" the annular space cementing concrete ring of sleeve pipe evenly.
2. the utility model 4, and " casing stabbing board has adopted and has pushed away watt and the lock tile structure, and external diameter is reduced to 114mm, for 5
1/
2" internal diameter of sleeve pipe do not need to require very high, thereby effectively reduces the difficulty and the risk of drifting, has improved the quality of well cementation.
Description of drawings:
Fig. 1 is the utility model 4 " casing stabbing board structural representation;
Fig. 2 is the utility model 4 " casing stabbing board sectional view;
Fig. 3 is the partial enlarged drawing of Fig. 1.
Above-mentioned number in the figure explanation:
1-main body 2-surely follows closely a 3-compressing tablet 4-lock watt 5-and pushes away watt
6-pushing sleeve 7-sealing ring 8-piston 9-sealing ring 10-steel loop
The unidirectional pin of 11-positioning sleeve 12-alignment pin 13-
The specific embodiment:
Be described further below in conjunction with accompanying drawing:
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model 4 " casing stabbing board; main body 1 has been formed supporter with positioning sleeve 11; 11 of main body 1 and positioning sleeves are provided with alignment pin 12; surely follow closely 2, compressing tablet 3, lock watts 4 and push away watt 5 formation righting mechanisms; compressing tablet 3 is located on the main body 1; 1 of compressing tablet 3 and main body are provided with steady nail 2, lock watts 4 with push away watts 5 and be located on the main body 1, lock watt 4 one ends are connected with compressing tablet 3, the other end is provided with the conical surface, pushes away watt 5 one ends and is provided with the conical surface and joins with lock watt 4 set conical surfaces, push away watts 5 and 1 of main body be provided with steady nail 2; Pushing sleeve 6, sealing ring 7, piston 8, sealing ring 9 and steel loop 10 are formed sealed motive force mechanisms, and pushing sleeve 6 is located on the main body 1, an end with push away watts 5 and join, the other end links to each other with piston 8 on being located at main body 1,1 of piston 8 and main body are provided with sealing ring 9 and steel loop 10; Unidirectional pin 13 with push away watts 5 and constitute retaining mechanisms, unidirectional pin 13 is located at and is pushed away watts 5 and 1 of main body; Main body 1 and push away watts 5, push away watts 5 and lock watts 4 be and be slidingly connected; Piston 8, sealing ring 9 compress the location with steel loop by positioning sleeve 11; Compressing tablet 3 is with to push away watts 5 location fixing by steady nail 2, surely follows closely 2 and surely follows closely for nylon; Push away watt 5 friction lock connections mutually after 13 of unidirectional pins are motion.
According to the combination of well inner sleeve, will connect these centralizers on 4 " casing stabbing board is connected every 4 " sleeve pipe or every one, two, " sleeve pipe is lowered to 5 with 4
1/
2" in the oil-water well of sleeve pipe, arrive design attitude after, suppress 5Mpa from the conveying oil pipe of well head after, it is watts 5 up that piston 8 pushes away, and is conical surfaces owing to push away watt 5 front ends, thereby makes lock watt 4 radially releases, supports 5
1/
2" on the internal surface of sleeve pipe with 4 " sleeve pipe sets upright 5
1/
2" middle of sleeve pipe makes the cementing concrete ring " sleeve pipe and 5 that can be evenly distributed in very much 4
1/
2" annular space of sleeve pipe, thus reach the requirement of sealing reservoir geology.
Claims (5)
1. one kind 4 " casing stabbing board includes the supporter that main body (1), positioning sleeve (11) are formed, and is provided with alignment pin (12) between main body (1) and positioning sleeve (11), it is characterized in that: also include righting mechanism, sealed motive force mechanism and retaining mechanism, wherein:
Described righting mechanism is by steady nail (2), compressing tablet (3), lock watt (4) and push away watt (a 5) formation, compressing tablet (3) is located on the main body (1), be provided with steady nail (2) between compressing tablet (3) and main body (1), lock watt (4) and push away watt (5) and be located on the main body (1), lock watt (4) one ends are connected with compressing tablet (3), the other end is provided with the conical surface, push away watt (5) one ends be provided with the conical surface and with the lock watt (a 4) set conical surface join, push away between watt (5) and main body (1) and be provided with steady nail (2);
Described sealed motive force mechanism includes pushing sleeve (6), sealing ring (7), piston (8), sealing ring (9) and steel loop (10), pushing sleeve (6) is located on the main body (1), one end with push away watt (5) and join, the other end links to each other with piston (8) on being located at main body (1), is provided with sealing ring (9) and steel loop (10) between piston (8) and main body (1);
Described retaining mechanism is made of with pushing away watt (5) unidirectional pin (13), and unidirectional pin (13) is located at and is pushed away between watt (5) and main body (1).
2. according to claim 14 " casing stabbing board is characterized in that: described main body (1) and push away between watt (5), push away watt (5) and lock and be between watt (4) and be slidingly connected.
3. according to claim 14 " casing stabbing board is characterized in that: described piston (8), sealing ring (9) compress the location with steel loop by positioning sleeve (11).
4. according to claim 14 " casing stabbing board is characterized in that: described steady nail (2) is surely followed closely for nylon.
5. according to claim 14 " casing stabbing board is characterized in that: described push away watt (5) are the friction lock connection mutually of motion back with between unidirectional pin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009044 CN2746114Y (en) | 2004-05-21 | 2004-05-21 | 4' casing pipe centering guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009044 CN2746114Y (en) | 2004-05-21 | 2004-05-21 | 4' casing pipe centering guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2746114Y true CN2746114Y (en) | 2005-12-14 |
Family
ID=35582695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420009044 Expired - Fee Related CN2746114Y (en) | 2004-05-21 | 2004-05-21 | 4' casing pipe centering guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2746114Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536133A (en) * | 2012-02-09 | 2012-07-04 | 东营市健源工贸有限责任公司 | Hydraulic casing pipe centering device |
| CN104033115A (en) * | 2014-05-20 | 2014-09-10 | 廊坊市志宏协佳石油技术有限公司 | Casing pipe centered locator and working method thereof |
| CN104153719A (en) * | 2013-05-13 | 2014-11-19 | 中国石油化工股份有限公司 | Centralizer |
-
2004
- 2004-05-21 CN CN 200420009044 patent/CN2746114Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536133A (en) * | 2012-02-09 | 2012-07-04 | 东营市健源工贸有限责任公司 | Hydraulic casing pipe centering device |
| CN102536133B (en) * | 2012-02-09 | 2014-02-19 | 东营市健源工贸有限责任公司 | Hydraulic casing pipe centering device |
| CN104153719A (en) * | 2013-05-13 | 2014-11-19 | 中国石油化工股份有限公司 | Centralizer |
| CN104033115A (en) * | 2014-05-20 | 2014-09-10 | 廊坊市志宏协佳石油技术有限公司 | Casing pipe centered locator and working method thereof |
| CN104033115B (en) * | 2014-05-20 | 2019-11-29 | 廊坊市志宏协佳石油技术有限公司 | A kind of casing centralization locator and its working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |