CN102733755A - Rotary drilling guider - Google Patents
Rotary drilling guider Download PDFInfo
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- CN102733755A CN102733755A CN2012102395868A CN201210239586A CN102733755A CN 102733755 A CN102733755 A CN 102733755A CN 2012102395868 A CN2012102395868 A CN 2012102395868A CN 201210239586 A CN201210239586 A CN 201210239586A CN 102733755 A CN102733755 A CN 102733755A
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Abstract
The invention discloses a rotary drilling guider comprising a rotating shaft, a hex cylinder sleeve and a reducing sleeve, wherein both ends of the rotating shaft are respectively provided with an upper joint and a lower joint connected with a drill bit and a drill tool; the hex cylinder sleeve is sleeved on the rotating shaft and connected with the upper joint by a screw thread; one end of the hex cylinder sleeve is provided with a limiting piston ring matched with the hex cylinder sleeve to form a high-pressure oil cavity; the reducing sleeve is sleeved on the rotating shaft on one side of the hex cylinder sleeve by a bearing; the reducing sleeve is further provided with a pair of wing plates for forming inclination; the wing plates are provided with a wing plate driving mechanism for controlling to support and retract the wing plates, wherein the wing plate driving mechanism is powered and controlled by the high-pressure cavity; the rotating shaft is further provided with a locking mechanism which is locked with or released from the reducing sleeve, and powered and controlled by the high-pressure oil cavity. With the adoption of the rotary drilling guider, the drill is automatically fed by pressure difference, the wing plates are controlled to be supported by oil pressure so as to control the cutting track of the drill bit; and the rotary drilling guider has the advantages of high drilling efficiency, low labor intensity, high well track quality, greatly reduced underground accident risk, and the like.
Description
Technical field
The present invention relates to the machine tool in oil drilling field, more particularly, relate to a kind of rotary drilling guider.
Background technology
Late 1990s; Begin to develop the rotary drilling system abroad; Wherein 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) and ENI-Agip (ENI-Agip) and Bake Hughes is comparatively successful; 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, our rotary drilling guider that began one's study in 1996, tool construction and principle maturation comparatively at present.
The PowerDrive (rotary steerable drilling system) of Si Lunbeixie (Schlumberger) is three hydraulic piston wing plates of design 120 degree angles on the drilling tool axle, and wing plate all rotates with axle, at main supply opening of inner via hole design of drilling tool axle; Main supply opening does not rotate with the drilling tool axle, but can control with the control device that the mud-pulse form reaches main supply opening through the ground signal of telecommunication, orientation that can the main supply opening of 360 degree adjustment; The stamper of main supply opening has three fluid pipelines, and logical three hydraulic pistons are given wing plate piston feed flow; Main supply opening and its stamper can rotate under sealing state each other, and main supply opening can be accepted surface instruction and turn the orientation, does not rotate with drilling tool; And three branched pipes rotate with drilling tool, whenever turn around to dock once with main supply opening respectively, make piston promote wing plate; Produce the side cutting power of drill bit; If want drill bit to Due South to creeping into, main supply opening should be transferred to positive north, each wing plate forwards north to just by feed flow once like this; Give a drill bit side direction smear metal power to the south, reach the purpose of Controlling Borehole Trajectory.This instrument uses at the XJ24-3-A18 well in China Nanhai Xijiang oil field; This well design well depth 8800m; Horizontal movement 7500m practices thrift 10 days drilling periods with PowerDrive, go tens thousand of US dollars of PowerDrive daily rental fee every day after; Still practice thrift 5,000,000 yuan of drilling costs, but the wing plate well accident that falls appears in second mouthful of well.Its major defect is: 1, control system complex, difficulty of processing is big.2, the instrument cost is high, and a cover is wanted more than 1,000 ten thousand dollars.3, wing plate changes with drilling tool and is prone to cause the well accident.
In order to overcome the shortcoming that wing plate changes with drilling tool, the Bake Hughes has designed AUTO-TRACK (downhole closed loop automatic following control system), AUTO-TRACK three wing plates designs on rotary steering supporting positive cover not; Guiding supporting positive cover and drilling tool axle are got in touch through bearing, can rotate each other, and the liquid feeding channel of three wing plates is controlled by electronic valve; Ground can be through the unlatching of mud-pulse controlled in wireless electronic valve; Wireless measuring system is arranged on the instrument, form closed loop with ground command system, driving shaft changes during work; The guiding supporting positive cover does not change the same PowerDrive of TRAJECTORY CONTROL principle.But the shortcoming of its existence is: 1, difficulty of processing is big, and cost is high.2, on-the-spot use cost is high.3, hydraulic seal and electronic valve are perishable, and life tools are short.
And SDD system (vertical drilling device) operating principle and structure and AUTO-TRACK are basic identical, and just axle can lock together with rotary steering supporting positive cover not and rotate.
Summary of the invention
To the above-mentioned shortcoming that exists in the prior art, the purpose of this invention is to provide a kind of rotary drilling guider, can directly 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 the well track quality is good, can prevent drilling tool accident simultaneously.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
This rotary drilling guider comprises axis of rotation, six side's oil cylinders cover and reducing cover, and the two ends of axis of rotation are respectively equipped with lower contact and the top connection that links to each other with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on the axis of rotation, and are connected with top connection through screw thread, and six side's oil cylinders overlap an end and are provided with the spacing piston ring that is mated the formation high-voltage oil cavity; The reducing cover is located at six side's oil cylinders through bearing holder (housing, cover) and is overlapped on the axis of rotation of a side; Reducing puts and also is provided with a pair of wing plate in order to deflecting; Wing plate is provided with the wing plate driving mechanism that the control wing plate is propped, withdrawn; And through the control of high-voltage oil cavity fuel feeding, also be provided with on the axis of rotation in order to overlap the locking mechanism of the control that locks mutually, gets loose with reducing, also control by the high-voltage oil cavity fuel feeding.
Form the oil supply gallery that is communicated with high-voltage oil cavity between described spacing piston ring, reducing cover and the axis of rotation; Described six side's oil cylinders cover is with the top connection uplink and downlink; With the compression high-voltage oil cavity, and through the fuel feeding control of oil supply gallery realization to wing plate driving mechanism and locking mechanism.
Described reducing puts and offers a pair of wing plate mounting groove, and described a pair of wing plate is divided in the 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 the reducing cover through the 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 the piston mounting groove, described reducing puts and is provided with the latch recess that communicates with oil supply gallery; Lock piston one end is located in the piston mounting groove through spring, and the other end inserts in the latch recess.
One end of described axis of rotation is provided with clamp nut, is provided with spacing piston and hydraulic control valve successively between clamp nut and the six side's oil cylinders cover.
Between described six side's oil cylinders cover and the spacing piston ring, reducing overlaps and spacing piston ring, axis of rotation between also be provided with seal.
In technique scheme, rotary drilling guider of the present invention comprises axis of rotation, six side's oil cylinders cover and reducing cover, and the two ends of axis of rotation are respectively equipped with lower contact and the top connection that links to each other with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on the axis of rotation, and are connected with top connection through screw thread, and six side's oil cylinders overlap an end and are provided with the spacing piston ring that is mated the formation high-voltage oil cavity; The reducing cover is located at six side's oil cylinders through bearing holder (housing, cover) and is overlapped on the axis of rotation of a side; Reducing puts and also is provided with a pair of wing plate in order to deflecting; Wing plate is provided with the wing plate driving mechanism that the control wing plate is propped, withdrawn; And through the control of high-voltage oil cavity fuel feeding, also be provided with on the axis of rotation in order to overlap the locking mechanism of the control that locks mutually, gets loose with reducing, also control by the high-voltage oil cavity fuel feeding.When this guider passes through the pressure reduction automatic bit feed, control propping of wing plate through oil pressure, thus control bit cutting track, and have the drilling efficiency height, and labour intensity is low, and the well track quality is good, greatly reduces advantages such as down-hole accident risk.
Description of drawings
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 cover of the present invention;
Fig. 4 is the radial cross-section of reducing cover of the present invention;
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 a user mode sketch map of the present invention.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and embodiment.
Please combine Fig. 1～shown in Figure 5; Rotary drilling guider 100 of the present invention mainly comprises axis of rotation 13, six side's oil cylinders cover 4 and reducing cover 8; Wherein, Axis of rotation 13 is the passages that connect drilling tool, form high-pressure slurry, also is the carrier of reducing cover 8 and six side's oil cylinders cover 4, and the two ends of axis of rotation 13 are respectively equipped with lower contact 16 and the top connection 1 that links to each other with drill bit, drilling tool; Six side's oil cylinders cover 4 is sheathed on the axis of rotation 13, and the one of which end is connected with top connection 1 through screw thread, and six side's oil cylinders overlap 4 other ends and are provided with the spacing piston ring 5 that is 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 one sides; And set up rotation relation through last taper roll bearing 6 and following taper roll bearing 11 and axis of rotation 13; Also be provided with a pair of wing plate 7 in order to deflecting on six side's oil cylinders cover 4, wing plate 7 is provided with the wing plate driving mechanism that control wing plate 7 is propped, withdrawn, and through the control of high-voltage oil cavity 17 fuel feeding; Also be provided with on the axis of rotation 13 in order to reducing cover 8 lock mutually, the get loose locking mechanism 14 of control, also control by high-voltage oil cavity 17 fuel feeding.
The oil supply gallery 18 that formation is communicated with high-voltage oil cavity 17 between described spacing piston ring 5, reducing cover 8 and the axis of rotation 13; Described six side's oil cylinders cover 4 is with top connection 1 uplink and downlink; With compression high-voltage oil cavity 17, and through the fuel feeding control of oil supply gallery 18 realizations to wing plate driving mechanism and locking mechanism 14.
Offer a pair of wing plate mounting groove 19 on the described reducing cover 8; Described a pair of wing plate 7 is divided in the 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 is connected with reducing cover 8 through wing plate piston rod 10.The wing plate driving mechanism quantity of described each wing plate 7 can be for 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 provided with clamp nut 2 through the spiral shell buckle, is provided with spacing piston 3 and hydraulic control valve 5 successively between clamp nut 2 and the six side's oil cylinders cover 4.Axis of rotation is under the effect of mud fluid column pressure, and there are a pressure reduction (having more than the 6M Pa) in drilling tool internal volume and annular space, and this pressure reduction can produce nearly 10 tons the pressure of the drill to drill bit, breaks rock and creeps into.Six side's oil cylinders cover 4 limits with the stroke that is connected spacing piston of top connection 1; Along with the drilling tool weight that top connection 1 is transmitted, promote six side's oil cylinders overlap 4 descending, the oil in the compressing high-voltage oil cavity 17; Make high-voltage oil cavity 17 produce oil pressure; When oil pressure reached the spool that promotes hydraulic control valve 5, hydraulic control valve 5 was opened, through wing plate piston 9 fuel feeding of oil supply gallery 18 to reducing cover 8.
This hydraulic control valve 15 is stopping means that bidirectional hydraulic drives, and moves ahead when the oil pressure rising promotes spacing piston 3, and is leading nearly 45 degree of rotation under the rule effect; Get into spacing seat; Oil supply gallery 18 is opened, add oil pressure again after, under the effect of pump pressure and head of liquid; Spacing piston 3 returns, oil supply gallery 18 are 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 and the effect of wall friction power, overcomes rotational resistances such as bearing, guarantees 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 that form nearly drill bit stable orientation fulcrum, gives and bores first side cutting component, when work, does not rotate.The wing plate driving mechanism is through pressing down drilling tool, make to produce oil pressure in the chamber of six side's oil cylinders cover 4 and spacing piston ring 5 and control through hydraulic control valve 15, on when carrying drilling tool, oil pressure release can make wing plate 7 returns.
Please combine shown in Figure 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 that communicates with oil supply gallery 18; Lock piston 20 1 ends are located in the piston mounting groove 22 through spring 21, and the other end inserts in the latch recess 23.Under the situation of no oil pressure, receive spring 21 effects, can realize the locking of turning cylinder 13 and reducing cover 8; Can be through the direct bearing of dial rotation adjustment guider 100; When oil pressure was arranged, piston received the oil pressure effect groove 23 that goes out of lock, thereby removed the locking of turning cylinder 13 and reducing cover 8; Under borehole wall rotary resistance effect, can guarantee that the direct bearing of wing plate 7 is constant.
And wing plate 7 is interlock control with locking mechanism 14 through oil pressure; Promptly wing plate 7 is paid locking mechanism 14 returns, latch-release when oil pressure is arranged; Wing plate 7 does not rotate with drilling tool with reducing cover 8 together; Instrument is in the deflecting state, through the pressure of the drill control oil pressure, can control the expenditure degree of wing plate 7 arbitrarily.And when not having oil pressure, wing plate 7 resets, and under spring 21 effects; Lock piston 20 ejects; Turning cylinder 13 and reducing cover 8 are fixed by lock pin, can not rotate each other, and reducing cover 8 rotates with turning cylinder 13; Instrument is in the hold angle state, and spacing piston ring 5 is vitals of two bearings being fixed and regulated oil pressure and the pressure of the drill relation.And the maximum of wing plate 7 expenditure degree can prevent that the expenditure degree is big by 10 controls of wing plate piston rod, causes the fixedly destruction of wing plate 7 and produces down-hole accident.
In addition, between described six side's oil cylinders cover 4 and spacing piston ring 5, between reducing cover 8 and spacing piston ring 5, the axis of rotation 13, also be provided with seal,, avoid leakage in order to the assurance sealing performance.
Please combine Fig. 7～shown in Figure 8, guider 100 of the present invention is exactly the fulcrum that forms a stable orientation at nearly drill bit point, and to 200 1 side cutting power of drill bit F; The expenditure degree of the size of F and wing plate 7, the hardness and the oil pressure on stratum are relevant; After hole deviation, under gravitational effect, the drill bit cross component force that drilling tool weight produces and the point action of wing plate 7; It is crooked that drilling tool is produced, and increased the deflecting ability of instrument.And this guider 100 is directly installed on the drill bit 200, on 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 when increasing the pressure of the drill greater than 12 ton hours, top connection 1 is descending, drives six side's oil cylinders and overlaps 4 descending; And with the high-voltage oil cavity of spacing piston ring 5 17 in produce oil pressure, oil pressure forces 9 actions of wing plate piston, promotes wing plate 7 expenditures; Form nearly drill bit fulcrum, thereby make bit cutting track off-axis, the instrument deflecting creeps into; And below reducing the pressure of the drill to 8 ton the time, oil pressure returns zero, and under the effect of mud fluid column pressure, wing plate 7 returns, nearly drill bit fulcrum disappear, and the instrument hold angle creeps into.
In sum, guider 100 of the present invention can be applicable to that hole trajectory control and the underground pipeline of all drilling wells pass through the hole trajectory control with other types.The hard formation benefit is more obvious, is the rotation deflecting tool, can directly drive directed drilling with rotating disk; Mud purification is not required, need not pull out of hole and change the incompatible Controlling Borehole Trajectory of drill set, drilling efficiency is high; Labour intensity is low, and the 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, also is national 863 key research projects, has overcome many difficult points of existing in prior technology and bottleneck.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (7)
1. rotary drilling guider is characterized in that:
Comprise axis of rotation, six side's oil cylinders cover and reducing cover, the two ends of axis of rotation are respectively equipped with lower contact and the top connection that links to each other with drill bit, drilling tool; Six side's oil cylinder covers are sheathed on the axis of rotation, and are connected with top connection through screw thread, and six side's oil cylinders overlap an end and are provided with the spacing piston ring that is mated the formation high-voltage oil cavity; The reducing cover is located at six side's oil cylinders through bearing holder (housing, cover) and is overlapped on the axis of rotation of a side; Reducing puts and also is provided with a pair of wing plate in order to deflecting; Wing plate is provided with the wing plate driving mechanism that the control wing plate is propped, withdrawn; And through the control of high-voltage oil cavity fuel feeding, also be provided with on the axis of rotation in order to overlap the locking mechanism of the control that locks mutually, gets loose with reducing, also control by the high-voltage oil cavity fuel feeding.
2. rotary drilling guider as claimed in claim 1 is characterized in that:
Form the oil supply gallery that is communicated with high-voltage oil cavity between described spacing piston ring, reducing cover and the axis of rotation; Described six side's oil cylinders cover is with the top connection uplink and downlink; With the compression high-voltage oil cavity, and through the fuel feeding control of oil supply gallery realization to wing plate driving mechanism and locking mechanism.
3. rotary drilling guider as claimed in claim 1 is characterized in that:
Described reducing puts and offers a pair of wing plate mounting groove, and described a pair of wing plate is divided in the 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 the reducing cover through the wing plate piston rod.
4. like described rotary drilling guider still in the claim 1～3, it is characterized in that:
The wing plate driving mechanism quantity of described each wing plate is one or more.
5. rotary drilling guider as claimed in claim 2 is characterized in that:
Described locking mechanism comprises lock piston and spring; Described axis of rotation is provided with the piston mounting groove, described reducing puts and is provided with the latch recess that communicates with oil supply gallery; Lock piston one end is located in the piston mounting groove through spring, and the other end inserts in the latch recess.
6. 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 spacing piston and hydraulic control valve successively between clamp nut and the six side's oil cylinders cover.
7. rotary drilling guider as claimed in claim 1 is characterized in that:
Between described six side's oil cylinders cover and the spacing piston ring, reducing overlaps and spacing piston ring, axis of rotation between also be provided with seal.
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 |
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| 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 true CN102733755A (en) | 2012-10-17 |
| CN102733755B 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256006A (en) * | 2013-06-03 | 2013-08-21 | 安徽理工大学 | Driving-type drill bit guiding device |
| CN104481399A (en) * | 2014-11-20 | 2015-04-01 | 西南石油大学 | Near-bit well track control tool and control method thereof |
| CN105041209A (en) * | 2015-07-06 | 2015-11-11 | 西南石油大学 | Well track control tool for electrically driven directional crossing |
| CN107724960A (en) * | 2017-10-10 | 2018-02-23 | 中国石油天然气集团公司 | A kind of controllable guiding pipe nipple of electrodrill |
| CN107939288A (en) * | 2017-11-14 | 2018-04-20 | 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 |
| CN109763777A (en) * | 2017-11-09 | 2019-05-17 | 中国石油化工股份有限公司 | Pushing type rotary guiding device |
| CN111173452A (en) * | 2020-02-21 | 2020-05-19 | 万晓跃 | Static offset rotary steering drilling tool with sandwich cylinder structure |
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| 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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| CN101454532A (en) * | 2006-06-01 | 2009-06-10 | 吉沃林克有限公司 | Rotary steerable tool |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256006B (en) * | 2013-06-03 | 2015-05-20 | 安徽理工大学 | Driving-type drill bit guiding device |
| CN103256006A (en) * | 2013-06-03 | 2013-08-21 | 安徽理工大学 | Driving-type drill bit guiding device |
| CN104481399A (en) * | 2014-11-20 | 2015-04-01 | 西南石油大学 | Near-bit well track control tool and control method thereof |
| 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 |
| CN105041209A (en) * | 2015-07-06 | 2015-11-11 | 西南石油大学 | Well track control tool for electrically driven directional crossing |
| 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 |
| CN107724960A (en) * | 2017-10-10 | 2018-02-23 | 中国石油天然气集团公司 | A kind of controllable guiding pipe nipple of electrodrill |
| CN109763777A (en) * | 2017-11-09 | 2019-05-17 | 中国石油化工股份有限公司 | Pushing type rotary guiding device |
| 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 |
| CN107939288A (en) * | 2017-11-14 | 2018-04-20 | 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 |
| CN111173452A (en) * | 2020-02-21 | 2020-05-19 | 万晓跃 | Static offset rotary steering drilling tool with sandwich cylinder structure |
| CN111173452B (en) * | 2020-02-21 | 2024-04-19 | 万晓跃 | Static bias rotary steering drilling tool with sandwich cylinder structure |
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