CN204627410U - A kind of Cylindroid telescopic reducing drilling tool - Google Patents
A kind of Cylindroid telescopic reducing drilling tool Download PDFInfo
- Publication number
- CN204627410U CN204627410U CN201520346970.7U CN201520346970U CN204627410U CN 204627410 U CN204627410 U CN 204627410U CN 201520346970 U CN201520346970 U CN 201520346970U CN 204627410 U CN204627410 U CN 204627410U
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- guide pipe
- drilling tool
- housing
- block
- cylindroid
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Abstract
The utility model relates to a kind of Cylindroid telescopic reducing drilling tool, belongs to Petroleum Down-hole Tool field.This drilling tool comprises housing, guide pipe, abutment sleeve and throttle sleeve; Guide pipe is set with housing, and the middle part of guide pipe is provided with step-like tapered protrusion; The threaded one end of guide pipe is provided with throttle sleeve, and one end of throttle sleeve contacts with connector and connects.This drilling tool compact conformation, functional reliability is high, solve in existing drilling process and fix for controlling conventional stabilizer that well track and inclining prevention use because of structure, it is often subject to the impact such as formation condition, construction technology, be difficult on ground control and change its operating characteristic, and variable gauge stabilizer complex structure, manufacturing cost is high, reliability is not high problem; Can be widely used in the wellbore construction of extended reach well, directional well and straight well, can effect be improved, there is larger economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of Cylindroid telescopic reducing drilling tool, belongs to Petroleum Down-hole Tool field.
Background technology
In drilling process, for controlling well track and inclining prevention, normally on drill string, stabilizer is installed, traditional stabilizer is fixed because of structure, it is often subject to the impact such as formation condition, construction technology, be difficult on ground control and change its operating characteristic, frequently need change stabilizer, and change stabilizer must stop bore, realize by making a trip.Stop brill frequently, making a trip not only affects drilling well timeliness, prolongation drilling period, and the process that makes a trip easily causes to pull out of hole and meets the phenomenon such as card, slacking off and " pulling out piston ", even can there is the accident such as well slough, blowout, well is scrapped, cause tremendous economic to lose.At present for reducing or avoid the generation of above-mentioned accident, solve the hole trajectory control problem in drilling process better, usually use variable gauge stabilizer or rotary steering drilling tool.
Rotary steering drilling tool is because it is better to hole trajectory control effect, drilling efficiency high is widely used in oil/gas drilling process.At present, domestic rotary steering drilling tool is still in development, does not also have scale to apply, at oil gas drilling process mainly by the rotary steering drilling tool of Introduced From Abroad.Taking rotary steering drilling tool drilling well day of Introduced From Abroad is very high, for oil-gas mining adds cost.For this reason, domesticly realize deviation prevention and fast by supporting the use of variable gauge stabilizer and helicoid hydraulic motor, effectively control well track, be widely used at the efficient drilling process of oil gas.
Extensively the variable gauge stabilizer of development and application mainly contains mechanical liquid type and mechanical electronic hydraulic integrated formula from form of structure both at home and abroad at present, and Mechanical-hydraulictype type variable-diameter stabilizer is mainly divided into displacement control formula, brill pressure controlling by form of structure, gravitational cue controls formula, back-pressure difference signal controls formula and slush pump start-stop pump time-based control etc.The variable gauge stabilizer of mechanical electronic hydraulic integrated formula mainly contains automatically controlled variable gauge stabilizer and downhole closed loop automatic control variable gauge stabilizer, but because of this variable gauge stabilizer complex structure, the shortcoming such as manufacturing cost is high, reliability is not high and not applying, and the Mechanical-hydraulictype type variable-diameter stabilizer physical dimension used at present is longer, 15 radial piston extension and contraction control are more difficult, and manufacturing cost is higher.
Summary of the invention
The purpose of this utility model is: provide a kind of simple and compact for structure, practicality is good, fix for controlling conventional stabilizer that well track and inclining prevention use because of structure to solve in existing drilling process, it is often subject to the impact such as formation condition, construction technology, be difficult on ground control and change its operating characteristic, and variable gauge stabilizer complex structure, the problem such as manufacturing cost is high, reliability is not high; Thus deviation prevention and fast, effective Cylindroid telescopic reducing drilling tool controlling well track and prevent hole deviation can be realized.
The technical solution of the utility model is:
A kind of Cylindroid telescopic reducing drilling tool, comprises housing, guide pipe, abutment sleeve and throttle sleeve; It is characterized in that: guide pipe is set with housing, the shell ends head thread of guide pipe one end is provided with connector; Spacing shoulder is provided with in the housing port of the guide pipe other end; The middle part of guide pipe is provided with step-like tapered protrusion; The threaded one end of guide pipe is provided with throttle sleeve, and one end of throttle sleeve contacts with connector and connects; The other end of guide pipe is slidably fitted with abutment sleeve; Guide pipe between abutment sleeve and tapered protrusion is provided with upper reset spring by spring base; Guide pipe between throttle sleeve and tapered protrusion is provided with piston by lower back-moving spring; The housing appearance corresponding with tapered protrusion is circumferentially evenly equipped with wing block, and wing block is provided with housing bore; The taper surface of tapered protrusion is provided with slide rail; Slide rail is slidably fitted with back-up block, and the top of back-up block extends to housing outer end by housing bore.
Described slide rail cross section is T font.Gasket seal is provided with between described housing bore and back-up block.
Described back-up block is elliptic cylindrical; Back-up block top is the face of cylinder; The face of cylinder is embedded with multiple hard alloy columnar; Be domatic bottom back-up block, on domatic, be provided with the rail groove corresponding with slide rail.
Described wing number of blocks is 3, and wing block is circumferentially arranged in the shape of a spiral in housing appearance.
Described tapered protrusion quantity is 2; Described back-up block, slide rail and housing bore quantity are respectively 6.
Described abutment sleeve one end is touched with limiting stand shoulder grafting and is connected; The other end of abutment sleeve contacts with upper reset spring and connects.
Described piston is provided with O type rubber seal, the guide pipe between piston and throttle sleeve is equipped with y-type seal ring.
Described spring base and be provided with O type rubber seal between housing and guide pipe.
The beneficial effects of the utility model are:
This Cylindroid telescopic reducing drilling tool compact conformation, intensity is higher, and functional reliability is high, and mounting or dismounting are convenient, low cost of manufacture, long service life.The back-up block of this Cylindroid telescopic reducing drilling tool, can realize radial expansion motion, thus can improve the stability of this drilling tool entirety in housing bore.Solve in existing drilling process and fix for controlling conventional stabilizer that well track and inclining prevention use because of structure, it is often subject to the impact such as formation condition, construction technology, be difficult on ground control and change its operating characteristic, and variable gauge stabilizer complex structure, manufacturing cost is high, reliability is not high problem; Thus deviation prevention and fast, effective situation controlling well track and prevent hole deviation can be realized, can be widely used in the wellbore construction of extended reach well, directional well and straight well, improve effect, there is larger economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 be Fig. 1 A-A to sectional schematic diagram.
In figure: 1, housing, 2, guide pipe, 3, abutment sleeve, 4, throttle sleeve, 5, connector, 6, spacing shoulder, 7, tapered protrusion, 8, spring base, 9, upper reset spring, 10, lower back-moving spring, 11, piston, 12, O type rubber seal, 13, y-type seal ring, 14, wing block, 15, housing bore, 16, slide rail; 17, back-up block, 18, hard alloy columnar.
Detailed description of the invention
This Cylindroid telescopic reducing drilling tool comprises housing 1, guide pipe 2, abutment sleeve 3 and throttle sleeve 4.Guide pipe 2 is set with housing 3, housing 1 ends screw of guide pipe 2 one end is provided with connector 5; Spacing shoulder 6 is provided with in housing 1 port of guide pipe 2 other end.The middle part of guide pipe 2 is provided with 2 step-like tapered protrusion 7.The threaded one end of guide pipe 2 is provided with throttle sleeve 4, and one end of throttle sleeve 4 contacts with connector 5 and connects.The other end of guide pipe 2 is slidably fitted with abutment sleeve 3; Guide pipe 2 between abutment sleeve 3 and tapered protrusion 7 is provided with upper reset spring 9 by spring base 8; Abutment sleeve 3 one end contacts with spacing shoulder 6 and connects; The other end of abutment sleeve 3 contacts with upper reset spring 9 and connects.Spring base 8 and be provided with O type rubber seal 12 between housing 1 and guide pipe 2.
Guide pipe 2 between throttle sleeve 4 and tapered protrusion 7 is provided with piston 11 by lower back-moving spring 10; Piston 11 is provided with O type rubber seal 12, the guide pipe 2 between piston 11 and throttle sleeve 4 is equipped with y-type seal ring 13.
Housing 1 appearance corresponding with tapered protrusion 7 circumferentially helical form is evenly equipped with 3 wing blocks 14, each wing block 14 is respectively arranged with 2 housing bores 15.
On the taper surface of each tapered protrusion 7, shape corresponding to wing block 14 is evenly equipped with the slide rail 16 that 3 cross sections are T font; Slide rail 16 is slidably fitted with back-up block 17 respectively.Back-up block 17 is elliptic cylindrical; Back-up block 17 top is the face of cylinder; The face of cylinder is embedded with multiple hard alloy columnar 18; Be domatic bottom back-up block 17, on domatic, be provided with the rail groove corresponding with slide rail 16.The top of back-up block 17 extends to housing 1 outer end by housing bore 15.Gasket seal is provided with between housing bore 15 and back-up block 17.
Throttle sleeve 4 inner chamber of this Cylindroid telescopic reducing drilling tool has certain gradient, and shape, like funnel, plays the throttling action to wellbore fluid.During work, in drilling mud pump turn on pump state, when slurry liquid is by connector 5, because of its throttling action, hydraulic pressure increases, slurry liquid pressure promotes throttle sleeve 4 and moves upward, thus drive guide pipe 2 to move upward, meanwhile, while back-up block 17 moves upward with guide pipe 2 on slide rail 16 relative sliding, because slide rail 16 is arranged on the taper surface of tapered protrusion 7, along with the continuous slip of slide rail 16, progressively released in housing bore 15 at the jacking effect lower support block 17 of slide rail 16, the external diameter of (i.e. radial expansion) this drilling tool constantly increases, after back-up block 17 struts (by all releasing) completely, guide pipe 2 upper end just in time contacts with the spacing shoulder 6 of housing 1, now guide pipe 2 can not continue up.
Because when guide pipe 2 moves upward, back-moving spring is compressed, after drilling mud pump termination of pumping, pump pressure release, now back-moving spring provides restoring force, promotion guide pipe 2 and throttle sleeve 4 move downward jointly, back-up block 17 Stepwize Shrink goes back to origin-location (back-up block 17 keeps in touch with housing bore 15 all the time, can not exit completely during retraction from housing bore 15); Action like this thus deviation prevention and fast can be realized, effectively control well track and prevent the situation of hole deviation.
This Cylindroid telescopic reducing drilling tool has compact conformation, and intensity is higher, and functional reliability is high, and mounting or dismounting are convenient, the feature of low cost of manufacture and long service life.Solve in existing drilling process and fix for controlling conventional stabilizer that well track and inclining prevention use because of structure, it is often subject to the impact such as formation condition, construction technology, be difficult on ground control and change its operating characteristic, and variable gauge stabilizer complex structure, manufacturing cost is high, reliability is not high problem; Can be widely used in the wellbore construction of extended reach well, directional well and straight well, effectively can improve the stability of effect and drilling tool entirety; There is larger economic benefit and social benefit.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model does not limit to therewith; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement; all should be encompassed within protection domain of the present utility model, therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. a Cylindroid telescopic reducing drilling tool, comprises housing (1), guide pipe (2), abutment sleeve (3) and throttle sleeve (4); It is characterized in that: guide pipe (2) is set with housing (1), housing (1) ends screw of guide pipe (2) one end is provided with connector (5); Spacing shoulder (6) is provided with in housing (1) port of guide pipe (2) other end; The middle part of guide pipe (2) is provided with step-like tapered protrusion (7); The threaded one end of guide pipe (2) is provided with throttle sleeve (4), and one end of throttle sleeve (4) contacts with connector (5) and connects; The other end of guide pipe (2) is slidably fitted with abutment sleeve (3); Guide pipe (2) between abutment sleeve (3) and tapered protrusion (7) is provided with upper reset spring (9) by spring base (8); Guide pipe (2) between throttle sleeve (4) and tapered protrusion (7) is provided with piston (11) by lower back-moving spring (10); Housing (1) appearance corresponding with tapered protrusion (7) is circumferentially evenly equipped with wing block (14), wing block (14) is provided with housing bore (15); The taper surface of tapered protrusion (7) is provided with slide rail (16) with wing block (14) corresponding shape; Slide rail (16) is slidably fitted with back-up block (17), the top of back-up block (17) extends to housing (1) outer end by housing bore (15).
2. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described slide rail (16) cross section is T font.
3. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described back-up block (17) is elliptic cylindrical; Back-up block (17) top is the face of cylinder; The face of cylinder is embedded with multiple hard alloy columnar (18); Back-up block (17) bottom is domatic, is provided with the rail groove corresponding with slide rail (16) on domatic.
4. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described wing block (14) quantity is 3, and wing block (14) is circumferentially arranged in the shape of a spiral in housing (1) appearance.
5. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described tapered protrusion (7) quantity is 2; Described back-up block (17), slide rail (16) and housing bore (15) quantity are respectively 6.
6. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described abutment sleeve (3) one end contacts with spacing shoulder (6) and connects; The other end of abutment sleeve (3) contacts with upper reset spring (9) and connects.
7. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, it is characterized in that: described piston (11) is provided with O type rubber seal (12), the guide pipe (2) between piston (11) and throttle sleeve (4) is equipped with y-type seal ring (13).
8. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: described spring base (8) and be provided with O type rubber seal (13) between housing (1) and guide pipe (8).
9. a kind of Cylindroid telescopic reducing drilling tool according to claim 1, is characterized in that: be provided with gasket seal between described housing bore (15) and back-up block (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346970.7U CN204627410U (en) | 2015-05-27 | 2015-05-27 | A kind of Cylindroid telescopic reducing drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346970.7U CN204627410U (en) | 2015-05-27 | 2015-05-27 | A kind of Cylindroid telescopic reducing drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627410U true CN204627410U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520346970.7U Expired - Fee Related CN204627410U (en) | 2015-05-27 | 2015-05-27 | A kind of Cylindroid telescopic reducing drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761470A (en) * | 2017-01-04 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of variable gauge stabilizer |
-
2015
- 2015-05-27 CN CN201520346970.7U patent/CN204627410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761470A (en) * | 2017-01-04 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of variable gauge stabilizer |
| CN106761470B (en) * | 2017-01-04 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of variable gauge stabilizer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170527 |