CN201474631U - Large-diameter guide shoe with variable guide port - Google Patents
Large-diameter guide shoe with variable guide port Download PDFInfo
- Publication number
- CN201474631U CN201474631U CN2009203091577U CN200920309157U CN201474631U CN 201474631 U CN201474631 U CN 201474631U CN 2009203091577 U CN2009203091577 U CN 2009203091577U CN 200920309157 U CN200920309157 U CN 200920309157U CN 201474631 U CN201474631 U CN 201474631U
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- Prior art keywords
- guide shoe
- shoe
- targeting port
- guide
- port
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- Expired - Fee Related
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model relates to a large-diameter guide shoe with a variable guide port. The large-diameter guide shoe is characterized in that the guide shoe comprises an inner guide shoe and an outer guide shoe, wherein the lower end of the outer guide shoe is an inclined guide port; a location pin penetrates the upper part of the guide port; the inner guide shoe is mounted on the outer guide shoe through a shear pin; a guide groove is formed on the inner guide shoe; an inclined guide port inclining opposite the inclined guide port of the outer guide shoe is formed at the lower end of the inner guide shoe; and a seal ring is sheathed at the upper end of the inner guide shoe. The large-diameter guide shoe has the advantages of simple structure and low manufacture cost, and can change the direction of a lower chamfer in the guide shoe during descending, thereby improving the success rate and the efficiency of a completion tool descending to the designed position of a horizontal well, a large displacement well and a highly deviated well.
Description
Technical field
The utility model belongs to the oil field and bores the completion technique field, particularly relates to the variable targeting port guide shoe of a kind of big latus rectum.
Background technology
The used guide shoe of oilfield well completion all is the corresponding direction of chamfering opening at present, in the process that tool string is being lowered to, the big latus rectum guide shoe planar end surface of known technology design is after the step place is hampered, just be difficult to continue to be lowered to, it is not in place particularly to cause completion tool to be lowered to easily when horizontal well, extended reach well and high angle hole completion, influences production operation.
Summary of the invention
The utility model is for solving the variable targeting port guide shoe of big latus rectum that can change the lower end targeting port direction that is lowered to guide shoe when the technical problem that exists in the known technology provides a kind of the use.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The variable targeting port guide shoe of a kind of big latus rectum, it is characterized in that: guide shoe and outer guide shoe in comprising, outer guide shoe lower end is oblique targeting port, the targeting port top is installed with shop bolt, by shear pin interior guide shoe is installed on the outer guide shoe, interior guide shoe is provided with gathering sill, and interior guide shoe lower end is shaped on and the opposite oblique targeting port of the oblique targeting port incline direction of outer guide shoe, and interior guide shoe upper end is set with sealing ring.
The utility model can also adopt following technical scheme:
Be shaped on connecting thread on the inwall of described outer guide shoe upper end.
Described shop bolt one end is positioned at the shop bolt hole of outer guide shoe, and an end is positioned at the gathering sill of guide shoe.Under the situation that shear pin is not installed, interior guide shoe can be by the location of shop bolt and gathering sill, and the inside of guide shoe is upper and lower outside moves.
Described shear pin one end is positioned at the shear pin hole of outer guide shoe, and an end is positioned at the shear pin hole of guide shoe.
Advantage and the good effect that the utlity model has are: because the utility model has adopted technique scheme, be lowered to when being hampered in the process at the tool string that uses variable targeting port guide shoe, increase the suspending weight shear pin, interior guide shoe can be withdrawn into the inside of outer guide shoe, outer guide shoe lower end targeting port exposes, the conversion of guide shoe targeting port breaks away from the step position that is hampered, and is beneficial to tool string and continues to be lowered to smoothly.Be provided with shop bolt between the inside and outside guide shoe, can lead and prevent that inside and outside guide shoe from rotating mutually.It is simple in structure, low cost of manufacture can change the following chamfer direction that is lowered to guide shoe when guide shoe descends, and has improved success rate and efficient that completion tool is lowered into horizontal well, extended reach well and high angle hole design attitude.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of outer guide shoe;
Fig. 3 is the structural representation of interior guide shoe;
Fig. 4 is user mode figure of the present utility model.
Among the figure: 1, outer guide shoe; 1-1, oblique targeting port; 1-2, shop bolt hole; 1-3, shear pin hole; 1-4, connecting thread; 2, interior guide shoe; 2-1, oblique targeting port; 2-2, gathering sill; 2-3, shear pin hole; 3, shear pin; 4, shop bolt; 5, sealing ring.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 4, the variable targeting port guide shoe of a kind of big latus rectum, guide shoe 2 and outer guide shoe 1 in comprising, outer guide shoe 1 lower end is shaped on oblique targeting port 1-1, tiltedly targeting port 1-1 top is installed with shop bolt 4, by shear pin 3 interior guide shoe 2 is installed on the outer guide shoe 1, and interior guide shoe 2 is provided with gathering sill 2-2 and shear pin hole 2-3, interior guide shoe 2 lower ends are the incline direction oblique targeting port 2-1 opposite with the oblique targeting port 1-1 of outer guide shoe incline direction, and interior guide shoe 2 upper ends are set with sealing ring 5.Be shaped on connecting thread 1-4 on the inwall of outer guide shoe 1 upper end.Shop bolt 4 one ends are positioned at the shop bolt hole 1-2 of outer guide shoe 1, and an end is positioned at the gathering sill 2-2 of guide shoe 2.Under the situation that shear pin 3 is not installed, interior guide shoe 2 can be by the location of shop bolt 4 with gathering sill 2-2, and the inside of guide shoe 1 is upper and lower outside moves.Shear pin 1-3 one end is positioned at the shear pin hole 1-3 of outer guide shoe 1, and an end is positioned at the shear pin hole 2-3 of guide shoe 2.
Operating principle of the present utility model is:
When completion tubular column uses the variable targeting port guide shoe of big latus rectum by the 1-4 that is threaded, guiding completion tubular column G.I.H.After shear pin 3 and shop bolt 4 were installed, interior guide shoe 2 was fixed on outer guide shoe 1 inside, and the device direction of the bottom targeting port correspondence of interior guide shoe 2 and outer guide shoe 1 is opposite.When interior guide shoe 2 lower ends are being lowered in the process when being hampered at the step place, pressure increases gradually, after cutting off to shear pin 3, interior guide shoe 2 moves in the outside guide shoe of gathering sill 2-2 1 upper end, the guide effect lower edge of shop bolt 4, outside the withdrawal of the lower end of interior guide shoe 2 in the guide shoe 2, the oblique targeting port 1-1 of outer guide shoe 1 exposes, make the big chamfering mouth counterparty of guide shoe to changing, 180 ° of guide shoe targeting port angular transition, and guide shoe was convenient to tool string and is continued to be lowered to smoothly at the resistance at step place in outer guide shoe 1 automatically terminated in importing process.
Claims (4)
1. variable targeting port guide shoe of big latus rectum, it is characterized in that: guide shoe and outer guide shoe in comprising, outer guide shoe lower end is oblique targeting port, the targeting port top is installed with shop bolt, by shear pin interior guide shoe is installed on the outer guide shoe, interior guide shoe is provided with gathering sill, and interior guide shoe lower end is shaped on and the opposite oblique targeting port of the oblique targeting port incline direction of outer guide shoe, and interior guide shoe upper end is set with sealing ring.
2. the variable targeting port guide shoe of big latus rectum according to claim 1 is characterized in that: be shaped on connecting thread on the inwall of described outer guide shoe upper end.
3. the variable targeting port guide shoe of big latus rectum according to claim 1 is characterized in that: described shop bolt one end is positioned at the shop bolt hole of outer guide shoe, and an end is positioned at the gathering sill of guide shoe.
4. the variable targeting port guide shoe of big latus rectum according to claim 1 is characterized in that: described shear pin one end is positioned at the shear pin hole of outer guide shoe, and an end is positioned at the shear pin hole of guide shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203091577U CN201474631U (en) | 2009-08-28 | 2009-08-28 | Large-diameter guide shoe with variable guide port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203091577U CN201474631U (en) | 2009-08-28 | 2009-08-28 | Large-diameter guide shoe with variable guide port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474631U true CN201474631U (en) | 2010-05-19 |
Family
ID=42410879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203091577U Expired - Fee Related CN201474631U (en) | 2009-08-28 | 2009-08-28 | Large-diameter guide shoe with variable guide port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474631U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392610A (en) * | 2011-12-01 | 2012-03-28 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Design method of sleeve eccentric guide shoe |
| CN102400652A (en) * | 2011-11-30 | 2012-04-04 | 杨智恺 | Pipe shoe self-adapting to stratum environment |
| CN104196463A (en) * | 2014-08-26 | 2014-12-10 | 北京奥瑞安能源技术开发有限公司 | Operation tubular column for coal-bed gas well |
| CN107587850A (en) * | 2017-10-16 | 2018-01-16 | 天津盛鑫华瑞石油技术有限公司 | Completion guide shoe |
-
2009
- 2009-08-28 CN CN2009203091577U patent/CN201474631U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400652A (en) * | 2011-11-30 | 2012-04-04 | 杨智恺 | Pipe shoe self-adapting to stratum environment |
| CN102392610A (en) * | 2011-12-01 | 2012-03-28 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Design method of sleeve eccentric guide shoe |
| CN104196463A (en) * | 2014-08-26 | 2014-12-10 | 北京奥瑞安能源技术开发有限公司 | Operation tubular column for coal-bed gas well |
| CN107587850A (en) * | 2017-10-16 | 2018-01-16 | 天津盛鑫华瑞石油技术有限公司 | Completion guide shoe |
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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: 20100519 Termination date: 20170828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |