CN202451054U - Rotary drilling guider - Google Patents
Rotary drilling guider Download PDFInfo
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- CN202451054U CN202451054U CN2011203729388U CN201120372938U CN202451054U CN 202451054 U CN202451054 U CN 202451054U CN 2011203729388 U CN2011203729388 U CN 2011203729388U CN 201120372938 U CN201120372938 U CN 201120372938U CN 202451054 U CN202451054 U CN 202451054U
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- oil pressure
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- rotary drilling
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- reducing
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Abstract
The utility model relates to a rotary drilling guider. The rotary drilling guider comprises an upper connector, a hexagonal oil cylinder sleeve, a sealing ring, a reducing sleeve and a spindle, wherein the upper connector, the hexagonal oil cylinder sleeve, the limiting sealing ring and the reducing sleeve are sequentially connected with one another, inner cavities are mutually communicated to form an oil pressure cavity, a compression nut and a piston are sheathed at one end of the spindle which is inserted into the oil pressure cavity, the other end of the spindle extends out of the reducing sleeve to seal the oil pressure cavity, the reducing sleeve is provided with a guide block, the guide block comprises a piston cylinder which is communicated with the oil pressure cavity, a piston which is arranged in the piston cylinder, and a movable wing plate which is fixedly connected with the piston, a groove is arranged on the peripheral surface of the spindle, a positioning lock pin is arranged in the groove, a spring is arranged between the positioning lock pin and the spindle, the reducing sleeve is provided with a positioning hole corresponding to the positioning lock pin, and the positioning lock pin can be inserted into the positioning hole. The rotary drilling guider realizes rotary steerable drilling, the hole trajectory is regular and smooth, and the guide block can be automatically retracted, so that the friction resistance is reduced, and hole drill-jamming accidents are prevented.
Description
Technical field
The utility model belongs to the oil drilling field, relates to the professional tool of a kind of directed drilling, deflecting the boring, specifically relates to a kind of rotary drilling guider.
Background technology
Domesticly classify the rotary drilling system as 863 brainstorm projects, have only the rotary steerable drilling system of Shengli Oil Field drilling well institute development to begin underground trials.The nearly bit guide that Beijing Petroleum Machinery plant produces is to adopt slide drilling series just to be embedded in LWD the lower casing of power drilling tool; The geologic steering drilling system is data such as the nearly drill bit resistivity of monitoring, azimuthal resistivity, natural gamma data, nearly drill bit hole deviation and side direction resistivity in real time; Judge the position of drill bit in oil reservoir; And adjust the drill bit attitude at any time, in oil reservoir, creep into all the time.He can be more Zao than conventional LWD steering tool the discovery reservoir; Improve the chance rate of boring; But ask a price 2,500 ten thousand/cover and wherein power drilling tool be that to return the time on the rapid wear article signal oversize greater than 2 minute response time; Nearly bit guide is under test, and mainly there is following some problem in domestic slip directed-drilling technique: 1. power drilling tool+bent sub directional well technology is more backward; 2. labour intensity is big, and rate of penetration is low; 3. hole quality is poor; 4. turning round the orientation, to change operation such as drilling tool frequent.
At the end of the nineties, the SDD system (vertical drilling device) of the common development of the PowerDrive (rotary steerable drilling system) of Si Lunbeixie (Schlumberger), Bake Hughes's (Baker Hughes) AUTO-TRACK (downhole closed loop automatic following control system), ENI-Agip (ENI-Agip) and Bake Hughes and the rotary steerable tool of CAMCO company are comparatively successful.The guiding principle of the rotary steerable tool of CAMCO and Baker Hughes company is similar, all be to utilize flexible the interaction with the borehole wall of nearly drill bit guide pad to produce guiding force, but structure is different.The main distinction is there is not static fairlead, and 3 guiding rib pieces rotate with drill string.When needs during in certain direction guiding, 1 week of revolution, each guiding rib piece all will stretch out on this direction 1 time, and the top produces guiding force to the borehole wall, leave this direction after, the rib piece is withdrawn automatically.Its controller, rotary reversing valve and measuring mechanism all place in the middle of the drill string, can keep static relatively.Rotary reversing valve can rotate to any direction and keep static again, thereby makes guiding rib piece only when rotating to a certain direction, and drilling fluid just drives guiding rib piece and stretches out the purpose that reaches the Controlling Borehole Trajectory direction.When drilling straight-hole, rotary control valve can rotate with drill string, so the guiding force that guiding rib piece produces is constantly to change, but can cause the well hole enlargement like this.
The utility model content
In order to solve the problem that the drilling guidance device exists in the above prior art, the utility model provides a kind of rotary drilling guider.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of rotary drilling guider; Comprise top connection, six side's oil cylinder covers, joint ring, reducing cover and main shaft, said top connection, six side's oil cylinder covers, spacing joint ring and reducing cover are connected successively, and the inner chamber of said top connection, six side's oil cylinder covers, spacing joint ring and reducing cover connects each other; Form the oil pressure chamber; Said main shaft one end is set with clamp nut and piston, and inserts in the said oil pressure chamber, and the said main shaft other end stretches out outside the said reducing cover; Thereby seal said oil pressure chamber; Put at said reducing and to be provided with guide pad, said guide pad comprises the piston rod that is connected with said oil pressure chamber, the movable wing plate that is arranged on the piston in the said piston rod and is fixedly connected with said piston, and said main shaft periphery face is provided with groove; Be provided with locating detent in the said groove; Between said locating detent and the said main shaft spring is set, said reducing puts with said locating detent opposite position and is provided with locating hole, and said locating detent can insert in the said locating hole.
Further, the junction of said top connection and said six side's oil cylinders cover is provided with O-ring seals.
Further, the junction of said spacing joint ring and said six side's oil cylinders cover is provided with O-ring seals.
Further, be provided with wear ring between said spacing joint ring and the said reducing cover.
Further, be provided with wear ring between said reducing cover and the said main shaft.
Further, be provided with single-row tapered roller bearing between said reducing cover and the said main shaft.
The beneficial effect of the utility model is: the utility model rotary drilling guider in use, top connection connects drilling tool, the pressure of the drill that drilling tool is applied to top connection is during less than the pressure in the oil pressure chamber; The oil pressure chamber does not produce oil pressure, and guide pad is to receive back state under the effect of annular space head of liquid; Locating detent on the main shaft is the ejection state; Locating detent is inserted in the locating hole that reducing puts, reducing cover and spindle lock, and instrument be vertically or the hold angle duty; Increase the pressure of the drill, the pressure of the drill is greater than the oil pressure cavity pressure, and oil pressure raises; Thereby the release guide pad, locating detent is regained, under the effect of the borehole wall and guide pad; Reducing cover does not rotate with main shaft, has formed the fulcrum of a stable orientation at nearly drill bit point, and instrument is in the deflecting state.The utility model rotary drilling guider has been realized rotary steerable drilling, and the well track rule is smooth; Nearly drill bit geodetic layer parameter and well track parameter have been realized; When following brill and trip-out, guide pad reclaims automatically, and the resistance of can reducing friction prevents that the accident of well bit freezing from taking place; Realize the purpose that drilling tool makes up under the not trip-out state, practice thrift drilling period and cost, lower working strength of workers; Guide pad moves up and down with well depth, does not rotate, so greatly reduce the rotation torque and the fatigue failure of drilling tool, has reduced the down-hole equipment accident; Transmit the pressure of the drill through oil pressure, reduced the rigidity alternating stresses of drilling tool, prevented the drilling tool fatigue failure, prolonged application life; Can use repeatedly, easy to maintenance, use cost is lower.
Description of drawings
Fig. 1 for the utility model change the drilling guidance device structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 be among Fig. 2 A-A to sectional view;
Fig. 4 be among Fig. 2 C-C to partial sectional view.
The specific embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of rotary drilling guider comprises top connection 1, six side's oil cylinders cover 2, joint ring 3, reducing cover 4 and main shaft 5; Top connection 1, six side's oil cylinders cover 2, spacing joint ring 3 and reducing cover 4 are connected successively; And the inner chamber of top connection 1, six side's oil cylinders cover 2, spacing joint ring 3 and reducing cover 4 connects each other, forms the oil pressure chamber, and an end of main shaft 5 is set with clamp nut 51 and piston 52; And insert in the oil pressure chamber; The other end of main shaft 5 stretches out outside the reducing cover 4, and clamp nut 51 cooperates with piston 52, thus sealing oil pressure chamber.As shown in Figure 4; On reducing cover 4, be provided with guide pad, this guide pad comprises the piston rod 61 that is connected with the oil pressure chamber, is arranged on piston 62 in the piston rod 61 and the movable wing plate 63 that is fixedly connected with piston 62, and the outer peripheral face of main shaft 5 is provided with groove 50; Be provided with locating detent 51 in the groove 50; Between locating detent 51 and the main shaft 5 spring 52 is set, is provided with locating hole 40 with locating detent 51 opposite positions on the reducing cover 4, locating detent 51 can insert in the locating hole 40.The junction of top connection 1 and six side's oil cylinders cover 2 is provided with O-ring seals 7.The junction of spacing joint ring 3 and six side's oil cylinders cover 2 is provided with O-ring seals 7.Be provided with wear ring 8 between spacing joint ring 3 and the reducing cover 4.Be provided with wear ring 8 between reducing cover 4 and the main shaft 5.Be provided with single-row tapered roller bearing 9 between reducing cover 4 and the main shaft 5, reducing cover 4 can relatively rotate with main shaft 5.
The utility model rotary drilling guider in use; Form the fulcrum of a stable orientation at nearly drill bit point; And give first side cutting power of boring F, the size of F is relevant with the expenditure degree of guide pad, under gravitational effect; It is crooked that the cross component force that drilling tool weight (the pressure of the drill) produces and the point action of guide pad produce drilling tool, increased the instrument deflecting ability.
The top connection of the utility model rotary drilling guider connects drilling tool, and the pressure of the drill that drilling tool is applied to top connection is during less than the pressure in the oil pressure chamber (less than 12T time), and the oil pressure chamber does not produce oil pressure; Guide pad is under the effect of annular space head of liquid; Be to receive back state, the locating detent of main shaft 5 is ejection states, and locating detent is inserted in the locating hole that reducing puts; Reducing cover and spindle lock, instrument are vertical or hold angle duty; Increase the pressure of the drill, the pressure of the drill is during greater than oil pressure cavity pressure (greater than 15T), the oil pressure rising the oil pressure chamber in; Thereby release guide pad; Locating detent is regained, and under the effect of the borehole wall and guide pad, the reducing cover does not rotate with main shaft; Formed the fulcrum of a stable orientation at nearly drill bit point, instrument is in the deflecting state.The adjustment of the utility model rotary drilling guider tool-face through on carry drilling tool, oil pressure discharges, locating detent ejects; Guide pad reclaims automatically, if one week of slow-speed drilling tool, reducing cover 4 and just locking of main shaft 5; According to the tool-face that deviational survey obtains, available dial rotation drilling tool gets final product to the needs orientation.
The utility model rotary drilling guider has been realized rotary steerable drilling, and the well track rule is smooth; Nearly drill bit geodetic layer parameter and well track parameter have been realized; When following brill and trip-out, guide pad reclaims automatically, and the resistance of can reducing friction prevents that the accident of well bit freezing from taking place; Realize the purpose that drilling tool makes up under the not trip-out state, practice thrift drilling period and cost, lower working strength of workers; Guide pad moves up and down with well depth, does not rotate, so greatly reduce the rotation torque and the fatigue failure of drilling tool, has reduced the down-hole equipment accident; Transmit the pressure of the drill through oil pressure, reduced the rigidity alternating stresses of drilling tool, prevented the drilling tool fatigue failure, prolonged application life; Can use repeatedly, easy to maintenance, use cost is lower.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. rotary drilling guider is characterized in that: comprise top connection, six side's oil cylinder covers, joint ring, reducing cover and main shaft, said top connection, six side's oil cylinder covers, spacing joint ring and reducing cover are connected successively; And the inner chamber of said top connection, six side's oil cylinder covers, spacing joint ring and reducing cover connects each other, forms the oil pressure chamber, and said main shaft one end is set with clamp nut and piston; And insert in the said oil pressure chamber; The said main shaft other end stretches out outside the said reducing cover, thereby seals said oil pressure chamber, puts at said reducing and is provided with guide pad; Said guide pad comprises the piston rod that is connected with said oil pressure chamber, the movable wing plate that is arranged on the piston in the said piston rod and is fixedly connected with said piston; Said main shaft periphery face is provided with groove, is provided with locating detent in the said groove, between said locating detent and the said main shaft spring is set; Said reducing puts with said locating detent opposite position and is provided with locating hole, and said locating detent can insert in the said locating hole.
2. a kind of rotary drilling guider according to claim 1 is characterized in that: the junction of said top connection and said six side's oil cylinders cover is provided with O-ring seals.
3. a kind of rotary drilling guider according to claim 1 is characterized in that: the junction of said spacing joint ring and said six side's oil cylinders cover is provided with O-ring seals.
4. a kind of rotary drilling guider according to claim 1 is characterized in that: be provided with wear ring between said spacing joint ring and the said reducing cover.
5. a kind of rotary drilling guider according to claim 1 is characterized in that: be provided with wear ring between said reducing cover and the said main shaft.
6. according to each described a kind of rotary drilling guider of claim 1 to 5, it is characterized in that: be provided with single-row tapered roller bearing between said reducing cover and the said main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729388U CN202451054U (en) | 2011-10-08 | 2011-10-08 | Rotary drilling guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729388U CN202451054U (en) | 2011-10-08 | 2011-10-08 | Rotary drilling guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451054U true CN202451054U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203729388U Expired - Lifetime CN202451054U (en) | 2011-10-08 | 2011-10-08 | Rotary drilling guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451054U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726788A (en) * | 2012-10-10 | 2014-04-16 | 崔刚明 | Well drilling guide device and work method thereof |
| CN105625968A (en) * | 2014-11-06 | 2016-06-01 | 通用电气公司 | Guiding system and guiding method |
| CN105865941A (en) * | 2016-05-05 | 2016-08-17 | 中国石油集团渤海钻探工程有限公司 | Pushing wing hinge pin shear test tool for intelligent drilling tool |
| CN105986768A (en) * | 2016-05-05 | 2016-10-05 | 中国石油集团渤海钻探工程有限公司 | Pushing mechanism for intelligent drilling tool |
| CN107842336A (en) * | 2017-11-28 | 2018-03-27 | 大庆元山油田技术服务有限公司 | A kind of pull-type oil pipe passage preventer |
| CN109441350A (en) * | 2018-12-03 | 2019-03-08 | 中国石油集团川庆钻探工程有限公司 | RG rotary guider and using method |
-
2011
- 2011-10-08 CN CN2011203729388U patent/CN202451054U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726788A (en) * | 2012-10-10 | 2014-04-16 | 崔刚明 | Well drilling guide device and work method thereof |
| CN105625968A (en) * | 2014-11-06 | 2016-06-01 | 通用电气公司 | Guiding system and guiding method |
| CN105625968B (en) * | 2014-11-06 | 2018-04-13 | 通用电气公司 | Guidance system and guidance method |
| US10550643B2 (en) | 2014-11-06 | 2020-02-04 | Baker Hughes Oilfield Operations Llc | Steering system and method |
| CN105865941A (en) * | 2016-05-05 | 2016-08-17 | 中国石油集团渤海钻探工程有限公司 | Pushing wing hinge pin shear test tool for intelligent drilling tool |
| CN105986768A (en) * | 2016-05-05 | 2016-10-05 | 中国石油集团渤海钻探工程有限公司 | Pushing mechanism for intelligent drilling tool |
| CN107842336A (en) * | 2017-11-28 | 2018-03-27 | 大庆元山油田技术服务有限公司 | A kind of pull-type oil pipe passage preventer |
| CN107842336B (en) * | 2017-11-28 | 2023-12-22 | 大庆元山油田技术服务有限公司 | Lifting type oil pipe channel blowout preventer |
| CN109441350A (en) * | 2018-12-03 | 2019-03-08 | 中国石油集团川庆钻探工程有限公司 | RG rotary guider and using method |
| CN109441350B (en) * | 2018-12-03 | 2024-03-01 | 中国石油天然气集团有限公司 | RG rotary guide and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |