CN203603764U - Sleeve automatic grouting tool - Google Patents
Sleeve automatic grouting tool Download PDFInfo
- Publication number
- CN203603764U CN203603764U CN201320836854.4U CN201320836854U CN203603764U CN 203603764 U CN203603764 U CN 203603764U CN 201320836854 U CN201320836854 U CN 201320836854U CN 203603764 U CN203603764 U CN 203603764U
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- China
- Prior art keywords
- sliding sleeve
- main body
- sleeve
- diameter
- outer sliding
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- Expired - Fee Related
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a sleeve automatic grouting tool. A grouting hole is formed in the side face of a main body. A blocking ball is arranged at the inner end of the grouting hole. The diameter of the blocking ball is larger than the inner diameter of the grouting hole. An inner sliding sleeve is arranged in an outer sliding sleeve. The inner sliding sleeve and the outer sliding sleeve are connected together through an inner pin and then are arranged in the main body. The outer sliding sleeve of an outer pin is connected to the main body. The outer diameter of the inner sliding sleeve is smaller than the inner diameter of the lower portion of the main body. The outer diameter of the outer sliding sleeve is larger than the inner diameter of the lower portion of the main body. The upper portion of the main body is connected with the lower portion of an adapter connector. A valve ball is in fit sealing with the upper end port of the inner sliding sleeve. The diameter of the valve ball is smaller than the inner diameter of the adapter connector. A sealing sleeve is arranged on the outer wall of the outer sliding sleeve. The sealing sleeve and the outer sliding sleeve are fixed into a whole body. At sleeve feeding time, drilling fluid enters the grouting hole from screen cloth and then enters the sleeve to realize automatic grouting. The sleeve automatic grouting tool can realize automatic grouting, overcomes the problems in the prior art, can drill wells safely, reliably and effectively, and has remarkable economic benefits and social benefits.
Description
Technical field
The utility model is the underground equipment of oil field welldrilling, is a kind of sleeve pipe automatic grouting instrument.
Background technology
All will be to sleeve pipe mud grouting when drilling completion construction setting of casing.What adopt to mud grouting in cover at present is all artificial well head mud grouting mode.There is following problem in this mud grouting mode: sleeve pipe is lowered to and in process, produces excitement pressure is raise, and leakage easily occurs; Annular space mud upward velocity is high, is unfavorable for wellbore stability; Construct discontinuous, cutting ferrule easily occurs and run affairs former; Engineering time is long, and gas blowout accident (the particularly high well of borehole pressure) easily occurs; Easily there is operate miss, in sleeve pipe, fall thing.The generation of above-mentioned each problem can cause heavy economic losses.
Summary of the invention
The purpose of this utility model is a kind of sleeve pipe automatic grouting instrument of design, can automatic grouting, reach safe, reliable, efficient drilling well.
The purpose of this utility model is achieved in that and comprises variable buckle joint, valve ball, outer pin, interior pin, outer sliding sleeve, stifled ball, main body, inner sliding sleeve, sealing shroud, casing threads is arranged at the top of variable buckle joint, casing threads is arranged at the bottom of main body, the side of main body has mud grouting hole, there is stifled ball the inner in mud grouting hole, the diameter of stifled ball is greater than the internal diameter in mud grouting hole, inner sliding sleeve is arranged in outer sliding sleeve, inner sliding sleeve and outer sliding sleeve are arranged in main body after being linked together by interior pin, outer pin is connected to outer sliding sleeve in main body, the external diameter of inner sliding sleeve is less than the bottom internal diameter of main body, the external diameter of outer sliding sleeve is greater than the bottom internal diameter of main body, main body top be connected with the bottom of variable buckle joint, the upper port fitted seal of valve ball and inner sliding sleeve, the diameter of valve ball is less than the internal diameter of variable buckle joint, the outer wall of outer sliding sleeve is provided with sealing shroud, sealing shroud and outer sliding sleeve are fixed into one.
The coated screen cloth of outer wall of main body, screen cloth covers mud grouting hole.
Sieve aperture is arranged at the bottom of outer sliding sleeve, and sieve aperture is under sealing shroud, and the lower surface of outer sliding sleeve is under stifled ball.
The beneficial effects of the utility model are: the utility model is arranged on block ring, and when setting of casing, drilling fluid enters mud grouting hole from screen cloth, then enter in sleeve pipe, realize automatic grouting.Under sleeve pipe, drop into afterwards on earth valve ball, turn on pump is suppressed 10MPa, and outer pin is cut off, and outer sliding sleeve, inner sliding sleeve together fall to sealing mud grouting hole; Boost to 15 MPa, interior pin is cut off, and inner sliding sleeve falls on block ring, realizes circulation of drilling fluid.When well cementation, plug comes downwards to outer sliding sleeve place and realizes bruising, and cement paste can not return in sleeve pipe, can uncovered time coagulate.If setting of casing is hampered when the undershoot of turn on pump circulation midway, the grout hole ball that is blocked is blocked, and rushes the flushing that flows downward of well liquid, and after termination of pumping, stifled ball leaves mud grouting hole in the effect of pressure reduction, still can automatic grouting.The utility model is realized after automatic grouting, has overcome the problem that prior art exists, can safe, reliable, efficient drilling well, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model example structure figure.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, embodiment of the present utility model comprises variable buckle joint 1, valve ball 2, outer pin 3, interior pin 4, outer sliding sleeve 5, stifled ball 6, screen cloth 7, main body 8, inner sliding sleeve 9, sealing shroud 10, casing threads is arranged at the top of variable buckle joint 1, can be connected with the sleeve pipe on top, casing threads is arranged at the bottom of main body 8, can be connected with the block ring of bottom, the side of main body 8 has mud grouting hole 12, there is stifled ball 6 the inner in mud grouting hole 12, the diameter of stifled ball 6 is greater than the internal diameter in mud grouting hole 12, inner sliding sleeve 9 is arranged in outer sliding sleeve 5, inner sliding sleeve 9 and outer sliding sleeve 5 are arranged in main body 8 after being linked together by interior pin 4, outer pin 3 is connected to outer sliding sleeve 5 in main body 8, the external diameter of inner sliding sleeve 9 is less than the bottom internal diameter of main body 8, inner sliding sleeve 9 can drop down onto on the block ring of bottom by main body 8, the external diameter of outer sliding sleeve 5 is greater than the bottom internal diameter of main body 8, make its outer sliding sleeve 5 can be spacing by main body 8, main body 8 top be connected with the bottom of variable buckle joint 1, the upper port fitted seal of valve ball 2 and inner sliding sleeve 9, the diameter of valve ball 2 is less than the internal diameter of variable buckle joint 1, valve ball 2 can pass through in variable buckle joint 1, the outer wall of outer sliding sleeve 5 is provided with sealing shroud 10, sealing shroud 10 is fixed into one with outer sliding sleeve 5, add founding in man-hour together.The coated screen cloth 7 of outer wall of main body 8, screen cloth 7 covers mud grouting hole 12, can block stifled ball and can not come off.Sieve aperture 11 is arranged at the bottom of outer sliding sleeve 5, and sieve aperture 11 is under sealing shroud 10, and the activity space of stifled ball, under stifled ball 6, can be limited in the lower surface of outer sliding sleeve 5, and it can not entered in sleeve pipe.
After sealing shroud 10 is descending with outer sliding sleeve, play sealing mud grouting hole.
Claims (3)
1. a sleeve pipe automatic grouting instrument, comprise variable buckle joint (1), valve ball (2), outer pin (3), interior pin (4), outer sliding sleeve (5), stifled ball (6), main body (8), inner sliding sleeve (9), sealing shroud (10), casing threads is arranged at the top of variable buckle joint (1), casing threads is arranged at the bottom of main body (8), it is characterized in that: the side of main body (8) has mud grouting hole (12), there is stifled ball (6) the inner in mud grouting hole (12), the diameter of stifled ball (6) is greater than the internal diameter of mud grouting hole (12), inner sliding sleeve (9) is arranged in outer sliding sleeve (5), inner sliding sleeve (9) and outer sliding sleeve (5) are arranged in main body (8) after being linked together by interior pin (4), outer pin (3) is connected to outer sliding sleeve (5) in main body (8), the external diameter of inner sliding sleeve (9) is less than the bottom internal diameter of main body (8), the external diameter of outer sliding sleeve (5) is greater than the bottom internal diameter of main body (8), main body (8) top be connected with the bottom of variable buckle joint (1), the upper port fitted seal of valve ball (2) and inner sliding sleeve (9), the diameter of valve ball (2) is less than the internal diameter of variable buckle joint (1), the outer wall of outer sliding sleeve (5) is provided with sealing shroud (10), sealing shroud (10) is fixed into one with outer sliding sleeve (5).
2. sleeve pipe automatic grouting instrument according to claim 1, is characterized in that: the coated screen cloth (7) of outer wall of main body (8), screen cloth (7) covers mud grouting hole (12).
3. sleeve pipe automatic grouting instrument according to claim 1 and 2, is characterized in that: sieve aperture (11) is arranged at the bottom of outer sliding sleeve (5), and sieve aperture (11) is under sealing shroud (10), and the lower surface of outer sliding sleeve (5) is under stifled ball (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836854.4U CN203603764U (en) | 2013-12-18 | 2013-12-18 | Sleeve automatic grouting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836854.4U CN203603764U (en) | 2013-12-18 | 2013-12-18 | Sleeve automatic grouting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603764U true CN203603764U (en) | 2014-05-21 |
Family
ID=50716441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320836854.4U Expired - Fee Related CN203603764U (en) | 2013-12-18 | 2013-12-18 | Sleeve automatic grouting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320981A (en) * | 2015-07-07 | 2017-01-11 | 北京中煤矿山工程有限公司 | Fixed-point sleeve throwing device |
-
2013
- 2013-12-18 CN CN201320836854.4U patent/CN203603764U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320981A (en) * | 2015-07-07 | 2017-01-11 | 北京中煤矿山工程有限公司 | Fixed-point sleeve throwing device |
| CN106320981B (en) * | 2015-07-07 | 2018-07-27 | 北京中煤矿山工程有限公司 | A kind of casing fixed point gets rid of pipe device |
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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: 20140521 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |