CN102733755B - A kind of rotary drilling guider - Google Patents
A kind of rotary drilling guider Download PDFInfo
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- CN102733755B CN102733755B CN201210239586.8A CN201210239586A CN102733755B CN 102733755 B CN102733755 B CN 102733755B CN 201210239586 A CN201210239586 A CN 201210239586A CN 102733755 B CN102733755 B CN 102733755B
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- wing plate
- oil
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- axis
- reducing
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Abstract
The invention discloses a kind of rotary drilling guider, it comprises axis of rotation, six side's oil cylinder cover and reducing covers, and the two ends of axis of rotation are respectively equipped with the lower contact and top connection that are connected with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on axis of rotation, and are connected with top connection by screw thread, and six side's oil cylinders overlap one end and are provided with the limiting piston ring being mated and forming high-voltage oil cavity; Reducing cover is located on the axis of rotation of six side's oil cylinder cover sides by bearing holder (housing, cover), reducing puts and is also provided with a pair wing plate in order to deflecting, wing plate is provided with the wing plate driving mechanism controlling wing plate and prop, retract, and by high-voltage oil cavity oil-feeding control, axis of rotation is also provided with lock mutually in order to overlap with reducing, get loose the locking mechanism controlled, also by high-voltage oil cavity oil-feeding control.This guider is by while pressure reduction automatic bit feed, and control propping of wing plate by oil pressure, control bit cutting track, have drilling efficiency high, labour intensity is low, and well track quality is good, greatly reduces the advantages such as down-hole accident risk.
Description
Technical field
The present invention relates to the machine tool of oil-drilling field, more particularly, relate to a kind of rotary drilling guider.
Background technology
Late 1990s, abroad start to develop rotary drilling system, the wherein PowerDrive (rotary steerable drilling system) of Si Lunbeixie (Schlumberger), the SDD system (vertical drilling device) that the AUTO-TRACK (downhole closed loop automatic following control system) of Bake Hughes (BakerHughes) and ENI-Agip (ENI-Agip) and Bake Hughes develop jointly is comparatively successful, domestic rotary drilling system is classified as 863 brainstorm projects, the rotary steerable drilling system only having Shengli Oil Field drilling well institute to develop starts underground trials, we begin one's study rotary drilling guider for 1996, current tool construction and principle are comparatively ripe.
The PowerDrive (rotary steerable drilling system) of Si Lunbeixie (Schlumberger) is three the hydraulic piston wing plates designing 120 degree of angles on drilling tool axle, wing plate all rotates with axle, a main supply opening is designed at the inner via hole of drilling tool axle, main supply opening does not rotate with drilling tool axle, but the control device that can reach main supply opening by Terrestrial Telecommunication number with mud-pulse form controls, can 360 degree adjustment main supply openings orientation, the stamper of main supply opening has three fluid pipelines, logical three hydraulic pistons, to wing plate piston feed flow, main supply opening and its stamper can rotate in sealed states mutually, main supply opening can accept surface instruction and turn orientation, do not rotate with drilling tool, and three branched pipes rotate with drilling tool, often turning around docks once with main supply opening respectively, piston is made to promote wing plate, produce the side cutting power of drill bit, to drill bit to Due South to creeping into, main supply opening should be transferred to positive north, each like this wing plate just forwards north to by feed flow once, to a drill bit side direction chip power to the south, reach the object controlling well track.The XJ24-3-A18 well of this instrument in China's Nanhai Xijiang oil field uses, this well design well depth 8800m, horizontal movement 7500m, 10 days drilling periods are saved with PowerDrive, after removing PowerDrive daily rental fee tens thousand of dollar every day, still save drilling cost 5,000,000 yuan, but to there is wing plate in second mouthful of well fall well accident.Its major defect is: 1, control system is complicated, and difficulty of processing is large.2, instrument cost is high, a set ofly wants more than 1,000 ten thousand dollars.3, wing plate is followed drilling tool to turn and is easily caused well accident.
In order to overcome the shortcoming that wing plate turns with drilling tool, Bake Hughes devises AUTO-TRACK (downhole closed loop automatic following control system), AUTO-TRACK designs three wing plates on non rotating righting-oriented cover, righting-oriented cover is contacted by bearing with drilling tool axle, can mutually rotate, the liquid feeding channel of three wing plates is controlled by electronic valve, ground can by the unlatching of mud-pulse controlled in wireless electronic valve, instrument there is wireless measuring system, closed loop is formed with ground command system, during work, driving shaft turns, righting-oriented cover does not turn, the same PowerDrive of TRAJECTORY CONTROL principle.But its shortcoming existed is: 1, difficulty of processing is large, and cost is high.2, onsite application cost is high.3, hydraulic seal and electronic valve perishable, life tools are short.
And SDD system (vertical drilling device) operating principle is substantially identical with AUTO-TRACK with structure, be rotate together with axle can lock with non rotating righting-oriented cover.
Summary of the invention
For the above-mentioned shortcoming existed in prior art, the object of this invention is to provide a kind of rotary drilling guider, directly can drive drilling well by rotating disk, hydraulic pressure transfer the pressure of the drill, the pressure of the drill is steady, and drilling efficiency is high, labour intensity is low, and well track quality is good, can prevent drilling tool accident simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
This rotary drilling guider comprises axis of rotation, six side's oil cylinder cover and reducing covers, and the two ends of axis of rotation are respectively equipped with the lower contact and top connection that are connected with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on axis of rotation, and are connected with top connection by screw thread, and six side's oil cylinders overlap one end and are provided with the limiting piston ring being mated and forming high-voltage oil cavity; Reducing cover is located on the axis of rotation of six side's oil cylinder cover sides by bearing holder (housing, cover), reducing puts and is also provided with a pair wing plate in order to deflecting, wing plate is provided with the wing plate driving mechanism controlling wing plate and prop, retract, and by high-voltage oil cavity oil-feeding control, axis of rotation is also provided with lock mutually in order to overlap with reducing, get loose the locking mechanism controlled, also by high-voltage oil cavity oil-feeding control.
Described limiting piston ring, reducing overlap and form the oil supply gallery be communicated with high-voltage oil cavity between axis of rotation, six described side's oil cylinder covers are with top connection uplink and downlink, to compress high-voltage oil cavity, and realize the oil-feeding control to wing plate driving mechanism and locking mechanism by oil supply gallery.
Described reducing puts and offers a pair wing plate mounting groove, and a pair described wing plate is divided in corresponding wing plate mounting groove, and described wing plate driving mechanism comprises wing plate piston rod and wing plate piston, and wing plate is connected with reducing cover by wing plate piston rod.
The wing plate driving mechanism quantity of described each wing plate is one or more.
Described locking mechanism comprises lock piston and spring, described axis of rotation is provided with piston mounting groove, described reducing puts the latch recess being provided with and communicating with oil supply gallery, lock piston one end is located in piston mounting groove by spring, and the other end inserts in latch recess.
One end of described axis of rotation is provided with clamp nut, is provided with limiting piston and hydraulic control valve successively between clamp nut and six side's oil cylinders overlap.
Between described six side's oil cylinders covers with limiting piston ring, reducing overlaps and limiting piston ring, be also provided with seal between axis of rotation.
In technique scheme, rotary drilling guider of the present invention comprises axis of rotation, six side's oil cylinder cover and reducing covers, and the two ends of axis of rotation are respectively equipped with the lower contact and top connection that are connected with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on axis of rotation, and are connected with top connection by screw thread, and six side's oil cylinders overlap one end and are provided with the limiting piston ring being mated and forming high-voltage oil cavity; Reducing cover is located on the axis of rotation of six side's oil cylinder cover sides by bearing holder (housing, cover), reducing puts and is also provided with a pair wing plate in order to deflecting, wing plate is provided with the wing plate driving mechanism controlling wing plate and prop, retract, and by high-voltage oil cavity oil-feeding control, axis of rotation is also provided with lock mutually in order to overlap with reducing, get loose the locking mechanism controlled, also by high-voltage oil cavity oil-feeding control.This guider, by while pressure reduction automatic bit feed, controls propping of wing plate by oil pressure, thus controls bit cutting track, and it is high to have drilling efficiency, and labour intensity is low, and well track quality is good, greatly reduces the advantages such as down-hole accident risk.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of guider of the present invention;
Fig. 2 is the sectional view of guider of the present invention;
Fig. 3 is the structural representation of reducing of the present invention cover;
Fig. 4 is the radial cross-section of reducing of the present invention cover;
Fig. 5 is the structural representation of wing plate of the present invention;
Fig. 6 is the enlarged diagram of locking mechanism of the present invention;
Fig. 7 is force analysis figure of the present invention;
Fig. 8 is using state schematic diagram of the present invention.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 1 ~ Fig. 5, rotary drilling guider 100 of the present invention mainly comprises axis of rotation 13, six side's oil cylinder cover 4 and reducing cover 8, wherein, axis of rotation 13 is the passages connecting drilling tool, form high-pressure slurry, also be the carrier of reducing cover 8 and six side's oil cylinders cover 4, the two ends of axis of rotation 13 are respectively equipped with the lower contact 16 and top connection 1 that are connected with drill bit, drilling tool; Six side's oil cylinders covers 4 are sheathed on axis of rotation 13, and its one end is connected with top connection 1 by screw thread, and six side's oil cylinders overlap 4 other ends is provided with the limiting piston ring 5 being mated formation high-voltage oil cavity 17; Reducing cover 8 is sheathed on six side's oil cylinders and overlaps on the axis of rotation 13 of 4 sides, and set up rotation relation by upper taper roll bearing 6 and lower taper roll bearing 11 with axis of rotation 13, six side's oil cylinder covers 4 are also provided with a pair wing plate 7 in order to deflecting, wing plate 7 is provided with the wing plate driving mechanism controlling wing plate 7 and prop, retract, and by high-voltage oil cavity 17 oil-feeding control, axis of rotation 13 is also provided with in order to overlap with reducing that 8 phases lock, get loose the locking mechanism 14 controlled, also by high-voltage oil cavity 17 oil-feeding control.
Described limiting piston ring 5, reducing cover 8 with form the oil supply gallery 18 be communicated with high-voltage oil cavity 17 between axis of rotation 13, six described side's oil cylinder covers 4 are with top connection 1 uplink and downlink, to compress high-voltage oil cavity 17, and realize the oil-feeding control to wing plate driving mechanism and locking mechanism 14 by oil supply gallery 18.
Described reducing cover 8 offers a pair wing plate mounting groove 19, described a pair wing plate 7 is divided in corresponding wing plate mounting groove 19, described wing plate driving mechanism comprises wing plate piston rod 10 and wing plate piston 9, and wing plate 7 overlaps 8 by wing plate piston rod 10 and reducing and is connected.The wing plate driving mechanism quantity of described each wing plate 7 can be one or more, and the quantity of the wing plate driving mechanism shown in Fig. 1 is three.
One end of described axis of rotation is linked by spiral shell and is equipped with clamp nut 2, and clamp nut 2 and six side's oil cylinders are provided with limiting piston 3 and hydraulic control valve 5 between overlapping 4 successively.Axis of rotation is under the effect of mud fluid column pressure, and drilling tool internal volume and annular space exist a pressure reduction (having more than 6MPa), and this pressure reduction can produce the pressure of the drill of nearly 10 tons to drill bit, carry out brokenly rock and creep into.Six side's oil cylinder covers 4 limit with the stroke of connection to limiting piston of top connection 1, the drilling tool weight transmitted along with top connection 1, promoting six side's oil cylinders overlaps 4 descending, oil in compressing high-voltage oil cavity 17, high-voltage oil cavity 17 is made to produce oil pressure, when oil pressure reaches the spool promoting hydraulic control valve 5, hydraulic control valve 5 is opened, by oil supply gallery 18 to wing plate piston 9 fuel feeding of reducing cover 8.
This hydraulic control valve 15 is stopping means that bidirectional hydraulic drives, move ahead when oil pressure raises promotion limiting piston 3, and lead rule effect under rotate nearly 45 degree, enter spacing seat, oil supply gallery 18 is opened, then after adding oil pressure, under the effect of pump pressure and head of liquid, limiting piston 3 return, oil supply gallery 18 is closed (with the spacing principle of ball pen).
Above-mentioned reducing cover 8 is parents of wing plate 7, during work, under wing plate 7 with the effect of wall friction power, overcomes the rotational resistances such as bearing, ensures that wing plate 7 moves up and down with well depth, does not rotate with drilling tool.The operating principle of wing plate 7 is the instruments forming nearly drill bit stable orientation fulcrum, gives and bores first side cutting component, operationally do not rotate.Wing plate driving mechanism is by pressing down drilling tool, makes produce oil pressure in the chamber of six side's oil cylinder covers 4 and limiting piston ring 5 and controlled by hydraulic control valve 15, and when above carrying drilling tool, oil pressure discharges, and can make wing plate 7 return.
Shown in Fig. 6, described locking mechanism 14 comprises lock piston 20 and spring 21, described axis of rotation 13 is provided with piston mounting groove 22, described reducing cover 8 is provided with the latch recess 23 communicated with oil supply gallery 18, lock piston 20 one end is located in piston mounting groove 22 by spring 21, and the other end inserts in latch recess 23.When without oil pressure, act on by spring 21, the locking of turning cylinder 13 and reducing cover 8 can be realized, the direct bearing of guider 100 can be adjusted by dial rotation, when there being oil pressure, piston to go out of lock groove 23 by oil pressure effect, thus removes the locking of turning cylinder 13 and reducing cover 8, under borehole wall rotary resistance effect, can ensure that the direct bearing of wing plate 7 is constant.
And wing plate 7 and locking mechanism 14 are coordinated signals by oil pressure, namely when there being oil pressure, wing plate 7 is paid, locking mechanism 14 return, latch-release, wing plate 7 does not rotate with drilling tool together with reducing cover 8, instrument is in deflecting state, controls oil pressure by the pressure of the drill, can control arbitrarily the expenditure degree of wing plate 7.And during without oil pressure, wing plate 7 resets, and under spring 21 acts on, lock piston 20 ejects, turning cylinder 13 and reducing cover 8 are fixed by lock pin, can not mutually rotate, and reducing cover 8 rotates with turning cylinder 13, instrument is in hold angle state, and limiting piston ring 5 is the vitals being fixed and regulating oil pressure and the pressure of the drill relation to two bearings.And the maximum expenditure degree of wing plate 7 can be controlled by wing plate piston rod 10, prevent expenditure degree large, cause the fixing destruction of wing plate 7 and produce down-hole accident.
In addition, between described six side's oil cylinders covers 4 and limiting piston ring 5, reducing overlap 8 and limiting piston ring 5, be also provided with seal 12 between axis of rotation 13, in order to ensure sealing performance, avoids leakage.
Shown in Fig. 7 ~ Fig. 8, guider 100 of the present invention is exactly the fulcrum forming a stable orientation at nearly drill bit point, and give drill bit 200 1 side cutting power F, hardness and the oil pressure on the size of F and the expenditure degree of wing plate 7, stratum are relevant, after having hole deviation, under gravitational effect, the point action of the drill bit cross component force that drilling tool weight produces and wing plate 7, drilling tool is produced bending, add the deflecting ability of instrument.And this guider 100 is directly installed on drill bit 200, above connect non magnetic drill collar and conventional drilling tool, with the same drilled straight well of conventional drilling mode, but the pressure of the drill is less than 8 tons, and be greater than 12 ton hours when increasing the pressure of the drill, top connection 1 is descending, drives six side's oil cylinders to overlap 4 descending, and produce oil pressure with the high-voltage oil cavity 17 of limiting piston ring 5 is interior, oil pressure forces wing plate piston 9 action, promotes wing plate 7 and pays, form nearly drill bit fulcrum, thus making bit cutting track off-axis, instrument deflecting creeps into; And when reducing the pressure of the drill to less than 8 tons, oil pressure back to zero, under the effect of mud fluid column pressure, wing plate 7 return, nearly drill bit fulcrum disappears, instrument angle holding drilling.
In sum, guider 100 of the present invention can be applicable to the hole trajectory control of all drilling wells and underground pipeline passes through the hole trajectory control with other types.Hard formation benefit is more obvious, is rotate deflecting tool, can drives directed drilling by direct rotating disk, to mud purification not requirement, need not pull out of hole and change drill set incompatible control well eye track, drilling efficiency is high, labour intensity is low, and well track quality is good, greatly reduces the risk of down-hole accident.Therefore, can be described as the revolution of wellbore trace control technology, is also National 863 key research projects, overcomes the many difficult points existing for prior art and bottleneck.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (6)
1. a rotary drilling guider, is characterized in that:
Comprise axis of rotation, six side's oil cylinder cover and reducing covers, the two ends of axis of rotation are respectively equipped with the lower contact and top connection that are connected with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on axis of rotation, and are connected with top connection by screw thread, and six side's oil cylinders overlap one end and are provided with the limiting piston ring being mated and forming high-voltage oil cavity; Reducing cover is located on the axis of rotation of six side's oil cylinder cover sides by bearing holder (housing, cover), reducing puts and is also provided with a pair wing plate in order to deflecting, wing plate is provided with the wing plate driving mechanism controlling wing plate and prop, retract, and by high-voltage oil cavity oil-feeding control, axis of rotation is also provided with lock mutually in order to overlap with reducing, get loose the locking mechanism controlled, locking mechanism is also by high-voltage oil cavity oil-feeding control;
Described limiting piston ring, reducing overlap and form the oil supply gallery be communicated with high-voltage oil cavity between axis of rotation, six described side's oil cylinder covers are with top connection uplink and downlink, to compress high-voltage oil cavity, and realize the oil-feeding control to wing plate driving mechanism and locking mechanism by oil supply gallery.
2. rotary drilling guider as claimed in claim 1, is characterized in that:
Described reducing puts and offers a pair wing plate mounting groove, and a pair described wing plate is divided in corresponding wing plate mounting groove, and described wing plate driving mechanism comprises wing plate piston rod and wing plate piston, and wing plate is connected with reducing cover by wing plate piston rod.
3. the rotary drilling guider according to any one of claim 1 ~ 2, is characterized in that:
The wing plate driving mechanism quantity of each wing plate is one or more.
4. rotary drilling guider as claimed in claim 1, is characterized in that:
Described locking mechanism comprises lock piston and spring, described axis of rotation is provided with piston mounting groove, described reducing puts the latch recess being provided with and communicating with oil supply gallery, lock piston one end is located in piston mounting groove by spring, and the other end inserts in latch recess.
5. rotary drilling guider as claimed in claim 1, is characterized in that:
One end of described axis of rotation is provided with clamp nut, is provided with limiting piston and hydraulic control valve successively between clamp nut and six side's oil cylinders overlap.
6. rotary drilling guider as claimed in claim 1, is characterized in that:
Between described six side's oil cylinders covers with limiting piston ring, reducing overlaps and limiting piston ring, be also provided with seal between axis of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239586.8A CN102733755B (en) | 2012-07-11 | 2012-07-11 | A kind of rotary drilling guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210239586.8A CN102733755B (en) | 2012-07-11 | 2012-07-11 | A kind of rotary drilling guider |
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| Publication Number | Publication Date |
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| CN102733755A CN102733755A (en) | 2012-10-17 |
| CN102733755B true CN102733755B (en) | 2016-01-13 |
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| CN201210239586.8A Expired - Fee Related CN102733755B (en) | 2012-07-11 | 2012-07-11 | A kind of rotary drilling guider |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103256006B (en) * | 2013-06-03 | 2015-05-20 | 安徽理工大学 | Driving-type drill bit guiding device |
| CN104481399B (en) * | 2014-11-20 | 2016-08-24 | 西南石油大学 | A kind of nearly drill bit borehole trace control tool and control method thereof |
| CN105041209B (en) * | 2015-07-06 | 2017-03-29 | 西南石油大学 | A kind of borehole trace control tool for electric drive directional traversing |
| CN107724960B (en) * | 2017-10-10 | 2019-04-09 | 中国石油天然气集团公司 | A kind of electrodrill is controllably oriented to pipe nipple |
| CN109763777B (en) * | 2017-11-09 | 2020-11-17 | 中国石油化工股份有限公司 | Push-back type rotary guiding device |
| CN107939288B (en) * | 2017-11-14 | 2019-04-02 | 中国科学院地质与地球物理研究所 | A kind of anti-rotation device and rotary guiding device of non-rotating set |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO115746B1 (en) * | 1994-03-25 | 2000-05-30 | Amoco Corp | Curved drilling assembly |
| CN101074596A (en) * | 2007-06-19 | 2007-11-21 | 西安石油大学 | Diameter variable location stabilizer |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN101454532A (en) * | 2006-06-01 | 2009-06-10 | 吉沃林克有限公司 | Rotary steerable tool |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
| CN102383730A (en) * | 2011-10-14 | 2012-03-21 | 武汉武船机电设备有限责任公司 | Skewing guide mechanism of borehole track control tool |
| CN202673145U (en) * | 2012-07-11 | 2013-01-16 | 上海克芙莱金属加工有限公司 | Guide apparatus used in rotary drilling |
-
2012
- 2012-07-11 CN CN201210239586.8A patent/CN102733755B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO115746B1 (en) * | 1994-03-25 | 2000-05-30 | Amoco Corp | Curved drilling assembly |
| CN101454532A (en) * | 2006-06-01 | 2009-06-10 | 吉沃林克有限公司 | Rotary steerable tool |
| CN101074596A (en) * | 2007-06-19 | 2007-11-21 | 西安石油大学 | Diameter variable location stabilizer |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
| CN102383730A (en) * | 2011-10-14 | 2012-03-21 | 武汉武船机电设备有限责任公司 | Skewing guide mechanism of borehole track control tool |
| CN202673145U (en) * | 2012-07-11 | 2013-01-16 | 上海克芙莱金属加工有限公司 | Guide apparatus used in rotary drilling |
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| CN102733755A (en) | 2012-10-17 |
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