CN102606073A - Guide mechanism for directing rotary steering drilling tool - Google Patents
Guide mechanism for directing rotary steering drilling tool Download PDFInfo
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- CN102606073A CN102606073A CN2012100994605A CN201210099460A CN102606073A CN 102606073 A CN102606073 A CN 102606073A CN 2012100994605 A CN2012100994605 A CN 2012100994605A CN 201210099460 A CN201210099460 A CN 201210099460A CN 102606073 A CN102606073 A CN 102606073A
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- rotary sleeve
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- bias axis
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Abstract
Disclosed is a guide mechanism for a directing rotary steering drilling tool. A near-bit stabilizer is fixed to the outer end of a rotating outer sleeve, a universal unit is fixed into the rotating outer sleeve, a drill bit is mounted at the tail of an offset shaft, the upper end of the offset shaft is connected with a drilling fluid channel, a hydraulic piston is arranged on the outer surface of an offset bearing, a sensor is mounted in a hydraulic cavity, a hydraulic medium channel is positioned inside the rotating outer sleeve and connected with two servo valves, the servo valves are connected with a control unit, a hydraulic pump is connected with a motor, the motor is connected with a turbine, and the drilling fluid channel is arranged at the tail end of the turbine. Under the action of hydraulic pressure, an offset mechanism shifts, a universal shaft is inclined, and a hydraulic telescopic block is dynamically adjustable, so that the variable universal shaft is kept at a certain angle during drilling. Mud drives a generator to generate power for providing energy to the hydraulic pump, a whole hydraulic system adopts servo control, and the guide mechanism has the advantages of systematic flexibility, fine stress, accuracy in control of well deflection positions and fine borehole quality.
Description
Technical field
The present invention relates to a kind of oil exploration guide drilling tool, particularly a kind of guiding mechanism of guiding type rotary steering drilling tool.
Background technology
Along with the development of petroleum industry, the exploitation deep-well, ultradeep well, extended reach well, horizontal well, and multi target well becomes needs.And to face the ocean more frequently, some complicated structure stratum such as desert.The difficulty of exploration and development increases greatly.These present situations have proposed to raise the efficiency to drilling technology, improve a series of new demands such as drilling duty and realization intellectuality under adverse circumstances and complex geological condition.
The rotary steerable drilling technology is the new and high technology in drilling engineering field, is representing the advanced drilling technology developing direction in the world.At present; Worldwide highly difficult complicated well such as horizontal well, extended reach well, Multilateral Wells is just flourish; The conventional drilling technology is difficult to meet the needs of, and has the shortcoming that itself is difficult to overcome: the hole trajectory control low precision, and the drilling well limit depth is restricted; Well is cleaned bad, the bit speed reduction that the more number of times that makes a trip causes etc.So must rely on advanced rotary steerable drilling technology could guarantee the accurate of well track.
Rotary steering drilling tool mainly is divided into quiescent biasing formula rotary steering drilling tool and dynamic bias formula rotary steering drilling tool at present.Press the difference of the guidance mode of biasing mechanism, can be divided into pushing type and sensing formula again.Pushing type rotary steering system lateral power is big, and build angle rate is high, but the well dog-leg that rotary steering gets out is big, and the track fluctuation is big, unsmooth.The wearing and tearing of drill bit and bit bearing are more serious.
Sensing formula rotary steering system can get out more level and smooth well; Frictional resistance and moment of torsion are less; Can use bigger the pressure of the drill; Rate of penetration is higher; Help to bring into play the performance of drill bit; The lateral load that drill bit and bearing thereof bear is less; Extreme displacement increases.
To have a drill string stressing conditions good and dynamic type rotary steering system compares static type, regulates advantages such as more flexible, has been the emphasis of rotary steering drilling tool area research.
Summary of the invention
In order to overcome the defective of prior art; The object of the present invention is to provide a kind of guiding mechanism of guiding type rotary steering drilling tool; In conjunction with the characteristics of dynamic type and sensing formula, existing dynamic type drill string stressing conditions is good, regulates advantage flexibly; There is sensing formula drilling tool strong again, the advantage that hole quality is good at the special geologic condition guidance capability.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of guiding mechanism of guiding type rotary steering drilling tool comprises near-bit stabilizer 1, and near-bit stabilizer 1 is fixed on the end of rotary sleeve 2; Be fixed with universal joint 5 in the rotary sleeve 2, the steel ball 6 in the universal joint 5 is placed in the ball-and-socket of bias axis 3, between bias axis 3 and overcoat 2 ends first sealing ring 8 is installed; Bias axis 3 ends are used for installing drill bit 4, and the upper end of bias axis 3 is stretched in biasing bearing 10, and link through flexible seal ring 17 and drilling fluid passage 19; Effect has four hydraulic pistons 9 on the external surface of biasing bearing 10, and hydraulic piston 9 promotes through hydraulic medium 14, and hydraulic piston 9 moves in hydraulic cavities 22; Hydraulic cavities 22 is opened on rotary sleeve 2; Sensor 11 is installed in the hydraulic cavities 22, and hydraulic medium passage 15 is positioned at rotary sleeve 2 inside, and hydraulic medium passage 15 links through hydraulic cavities 22 and two servo valves 12; Servo valve 12 links to each other with control module 21; Hydraulic medium 14 provides the pressure ability through hydraulic pump 13, and the power shaft of hydraulic pump 13 links to each other with the output shaft of motor 16, and the power shaft of motor 16 links to each other with the main shaft of turbine 18; Turbine 18 ends are drilling fluid passage 19, and second sealing ring 20 is installed between drilling fluid passage 19 and the motor 16.
The present invention has combined the characteristics of dynamic type and sensing formula, and it is flexible to have the dynamic type system concurrently, stressed good advantage and the better direction of deflection control of the formula of sensing drilling tool, the advantage that hole quality is good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that A-A of the present invention is to structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to be described in detail.
With reference to Fig. 1, Fig. 2, a kind of guiding mechanism of guiding type rotary steering drilling tool comprises near-bit stabilizer 1; Near-bit stabilizer 1 at the end of rotary sleeve 2, is fixed with universal joint 5 through the form fix that is threaded in the rotary sleeve 2, the steel ball 6 in the universal joint 5 is placed in the ball-and-socket of bias axis 3; Thereby bias axis 3 and rotary sleeve 2 are together rotated, between bias axis 3 and overcoat 2 ends first sealing ring 8 is installed, be used for stoping mud to get into universal joint 5; Bias axis 3 ends are used for installing drill bit 4, and the upper end of bias axis 3 is stretched in biasing bearing 10, and link through flexible seal ring 17 and drilling fluid passage 19; Effect has four hydraulic pistons 9 on the external surface of biasing bearing 10; Hydraulic piston 9 promotes through hydraulic medium 14, and hydraulic piston 9 moves in hydraulic cavities 22, and hydraulic cavities 22 is opened on rotary sleeve 2; Sensor 11 is installed in the hydraulic cavities 22, is used for detecting the position of hydraulic piston 9.Hydraulic medium passage 15 is positioned at rotary sleeve 2 inside, and hydraulic medium passage 15 leads to hydraulic cavities 22 and two servo valves 12 link, and servo valve 12 is controlled the control of unit 21.The pressure of hydraulic medium 14 can lean on hydraulic pump 13 to provide, and hydraulic pump 13 leans on motor 16 to drive, and motor 16 relies on drilling fluid to wash away turbine 18 rotations and produces electric energy.Turbine 18 ends are drilling fluid passage 19, and second sealing ring 20 is installed between drilling fluid passage 19 and the motor 16, are used for stoping drilling fluid to invade motor 16 and hydraulic medium 14.
Operating principle of the present invention is: the near-bit stabilizer 1 in the rotary steerable drilling bottom drill tool is combined closely with rotary sleeve 2 and is kept rotation, and rotary sleeve 2 receives drill string and drives, and drill string is by aboveground rig driven rotary.Bias axis 3 is installed in the rotary sleeve 2 through connecting mode, and drilling well work is carried out in the direct driving that receives rotary sleeve.The bottom of bias axis has tapered thread, and drill bit 4 is installed on the bias axis 3 through taper thread.Bias axis remains on the angle of appointment at work with the axis of rotary sleeve, thereby drill bit is crept into along preset direction.Can realize through angle of eccentricity being adjusted into zero during drilled straight well.
Rotary sleeve is delivered to moment and pressure on the bias axis 3 through universal joint 5; The structure of universal joint is with the structural similarity of rolling bearing; Different with it is that ball 6 is embedded in the ball recess 7; Play the effect of pin, making does not have relative motion between rotary sleeve 2 and the bias axis 3, and has allowed bias axis 3 to swing towards any direction around the center of universal joint 5.
Angle between bias axis 3 and rotary sleeve 2 axial lines is to adjust through the inner hydraulic piston 9 of rotary sleeve, and the control of hydraulic piston 9 realizes through Hydraulic Servo-Loop.What play crucial regulating action in the hydraulic circuit is hydraulic efficiency servo-valve 12.Hydraulic efficiency servo-valve 12 can be regulated the motion of hydraulic piston 9 according to the signal that sensor 11 collects.In the course of work, the angle of inclination can change through the order of control module 21, realizes dynamic adjustable.
In the present invention, dispose hydraulic pump 13 in the rotary sleeve 2.Hydraulic pump 13 is driven by motor 18, for hydraulic system provides pressure medium.Hydraulic medium 14 receives servo valve 12 controls, flows into hydraulic cavities 22.After servo valve 12 is received the order that sensor 11 acquired signal send, change the flow velocity or the direction of hydraulic medium 14, hydraulic piston 9 is moved according to certain rules.It is static that the resultant motion of hydraulic piston 9 can be kept bias axis 3 axial line in drilling process, the inclination angle that perhaps changes bias axis 3 arbitrarily angled in the adjustable range.
Be used for controlling the electric energy of electronic system and servo valve 12 motions, produced by motor 16, motor 16 relies on drilling fluid to wash away turbine 19 or the positive displacement motor generates electricity.The electric energy of motor 16 also can be used to the battery charge to electronic system.
At work, rotary sleeve 2 is in rotation status always, so hydraulic system must possess the ability of dynamic adjustments, makes the axis of auger spindle keep static with respect to the earth, according to predetermined direction biasing.The angular velocity of supposing rotary sleeve is ω, and then shaft swing angular velocity is necessary for-ω.
For making bias axis 3 ends realize circular motion, the resultant motion of hydraulic piston 9 must be a circular motion.Per two pairs of hydraulic pistons 9 are vertical each other among the present invention arranges that suppose that at present one group is the x direction, one group is the y direction, and the characteristics of motion when them is following so: v
x=r ω cos θ, v
y=r ω sin θ, θ=2 π/ω. the resultant motion that just can make them is a circular motion, and keeps unequal angular velocity ω with rotary sleeve, thereby has offset the effect of rotary sleeve 2 rotations.
Among the figure: 1 stabilizer, 2 rotary sleeves, 3 bias axis, 4 drill bits, 5 universal joints, 6 steel balls; 7, groove, 8 first sealing rings, 9 hydraulic pistons, 10 biasing bearings, 11 sensors; 12 servo valves, 13 hydraulic pumps, 14 hydraulic mediums, 15 hydraulic medium passages, 16 motors, 17 flexible seal rings; 18 turbines, 19 drilling fluid passages, 20 second sealing rings, 21 control modules, 22 hydraulic cavities.
Claims (1)
1. the guiding mechanism of a guiding type rotary steering drilling tool is characterized in that, comprises near-bit stabilizer (1); Near-bit stabilizer (1) is fixed on the end of rotary sleeve (2), is fixed with universal joint (5) in the rotary sleeve (2), and the steel ball (6) in the universal joint (5) is placed in the ball-and-socket of bias axis (3); Between bias axis (3) and overcoat (2) end first sealing ring (8) is installed, bias axis (3) end is used for installing drill bit (4), and the upper end of bias axis (3) is stretched in biasing bearing (10); And link through flexible seal ring (17) and drilling fluid passage (19); Effect has four hydraulic pistons (9) on the external surface of biasing bearing (10), and hydraulic piston (9) promotes through hydraulic medium (14), and hydraulic piston (9) moves in hydraulic cavities (22); Hydraulic cavities (22) is opened on rotary sleeve (2); Sensor (11) is installed in the hydraulic cavities (22), and hydraulic medium passage (15) is positioned at rotary sleeve (2) inside, and hydraulic medium passage (15) links through hydraulic cavities (22) and two servo valves (12); Servo valve (12) links to each other with control module (21); Hydraulic medium (14) provides the pressure ability through hydraulic pump (13), and the power shaft of hydraulic pump (13) links to each other with the output shaft of motor (16), and the power shaft of motor (16) links to each other with the main shaft of turbine (18); Turbine (18) end is drilling fluid passage (19), between drilling fluid passage (19) and the motor (16) second sealing ring (20) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100994605A CN102606073A (en) | 2012-04-06 | 2012-04-06 | Guide mechanism for directing rotary steering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100994605A CN102606073A (en) | 2012-04-06 | 2012-04-06 | Guide mechanism for directing rotary steering drilling tool |
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| CN102606073A true CN102606073A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100994605A Pending CN102606073A (en) | 2012-04-06 | 2012-04-06 | Guide mechanism for directing rotary steering drilling tool |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865038A (en) * | 2012-08-13 | 2013-01-09 | 中国石油大学(华东) | Offset guide mechanism design method of dynamic directional type rotary steering well drilling tool |
| CN102865039A (en) * | 2012-10-19 | 2013-01-09 | 中国石油大学(华东) | Structure bending corner locking mechanism for rotating guide drilling tool |
| CN102913131A (en) * | 2012-08-14 | 2013-02-06 | 中国石油大学(华东) | Dynamic point-the-bit rotary steering drilling tool |
| CN103726788A (en) * | 2012-10-10 | 2014-04-16 | 崔刚明 | Well drilling guide device and work method thereof |
| CN103883246A (en) * | 2014-03-31 | 2014-06-25 | 青岛金江源工贸有限公司 | Efficient positive displacement motor drill under well |
| CN104265168A (en) * | 2014-07-28 | 2015-01-07 | 西南石油大学 | Dynamic internal bias point-the-bit rotary steering device |
| WO2014029985A3 (en) * | 2012-08-20 | 2015-01-22 | Smart Stabilizer Systems Limited | Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool |
| CN104499940A (en) * | 2014-11-02 | 2015-04-08 | 中国石油集团钻井工程技术研究院 | Full-rotation sense type guide tool and guide method |
| CN105370207A (en) * | 2015-11-30 | 2016-03-02 | 西安石油大学 | Dynamic directional rotary steerable drilling tool |
| CN106639875A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Experimental device of rotation steering measurement and control system |
| CN106761401A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气股份有限公司 | Horizontal well drilling tool |
| CN106917585A (en) * | 2017-05-08 | 2017-07-04 | 天津中新安德科技有限公司 | A kind of rotary drilling guider |
| CN107780834A (en) * | 2017-08-22 | 2018-03-09 | 裴绪建 | A kind of guiding type rotary steering drilling tool |
| CN107882507A (en) * | 2017-12-11 | 2018-04-06 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool |
| CN108005579A (en) * | 2017-11-14 | 2018-05-08 | 中国科学院地质与地球物理研究所 | A kind of rotary guiding device based on radial drive power |
| CN108678670A (en) * | 2018-08-01 | 2018-10-19 | 徐芝香 | Camcylinder pushing type rotary steerable tool |
| CN108678669A (en) * | 2018-07-24 | 2018-10-19 | 徐芝香 | There is the static directional type rotary steerable tool of packet |
| CN109025821A (en) * | 2018-08-10 | 2018-12-18 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool of mixed type |
| CN109083593A (en) * | 2018-08-10 | 2018-12-25 | 西安石油大学 | A kind of waterpower backup drill bit directional type guide drilling tool |
| CN110029937A (en) * | 2019-05-28 | 2019-07-19 | 西南石油大学 | The rotary steering drilling tool of screw drive |
| CN110056323A (en) * | 2019-04-18 | 2019-07-26 | 江苏中船海洋设备有限公司 | Efficient duplex prevents that other bit freezing bores strand formula milling cone |
| CN110284836A (en) * | 2019-08-14 | 2019-09-27 | 宏华油气工程技术服务（四川）有限公司 | A kind of bias executing agency |
| CN110410008A (en) * | 2019-07-22 | 2019-11-05 | 西南石油大学 | A kind of static state directional type hydraulic rotating steering tool |
| CN112211556A (en) * | 2019-07-09 | 2021-01-12 | 万晓跃 | Static directional rotary guide device based on hydraulic principle |
| WO2022078476A1 (en) * | 2020-10-16 | 2022-04-21 | 中石化石油工程技术服务有限公司 | Steerable drilling device |
| WO2022206896A1 (en) * | 2021-04-02 | 2022-10-06 | 万晓跃 | High-reliability flexible drill rod |
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| CN102865038B (en) * | 2012-08-13 | 2016-08-03 | 中国石油大学(华东) | A kind of offset guide mechanism of dynamic guiding type rotary steering drilling tool |
| CN102865038A (en) * | 2012-08-13 | 2013-01-09 | 中国石油大学(华东) | Offset guide mechanism design method of dynamic directional type rotary steering well drilling tool |
| CN102913131A (en) * | 2012-08-14 | 2013-02-06 | 中国石油大学(华东) | Dynamic point-the-bit rotary steering drilling tool |
| CN102913131B (en) * | 2012-08-14 | 2016-08-10 | 中国石油大学(华东) | A kind of dynamically guiding type rotary steering drilling tool |
| GB2522791A (en) * | 2012-08-20 | 2015-08-05 | Smart Stabilizer Systems Ltd | Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool |
| GB2522791B (en) * | 2012-08-20 | 2017-01-18 | Smart Stabilizer Systems Ltd | Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool |
| US9945190B2 (en) | 2012-08-20 | 2018-04-17 | Smart Stabilizer Systems Limited | Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool |
| WO2014029985A3 (en) * | 2012-08-20 | 2015-01-22 | Smart Stabilizer Systems Limited | Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool |
| CN103726788A (en) * | 2012-10-10 | 2014-04-16 | 崔刚明 | Well drilling guide device and work method thereof |
| CN102865039B (en) * | 2012-10-19 | 2015-10-28 | 中国石油大学(华东) | For the structure bent angle retaining mechanism of rotary steering drilling tool |
| CN102865039A (en) * | 2012-10-19 | 2013-01-09 | 中国石油大学(华东) | Structure bending corner locking mechanism for rotating guide drilling tool |
| CN103883246B (en) * | 2014-03-31 | 2016-02-17 | 青岛金江源工贸有限公司 | Underground high-efficient helicoid hydraulic motor |
| CN103883246A (en) * | 2014-03-31 | 2014-06-25 | 青岛金江源工贸有限公司 | Efficient positive displacement motor drill under well |
| CN104265168A (en) * | 2014-07-28 | 2015-01-07 | 西南石油大学 | Dynamic internal bias point-the-bit rotary steering device |
| CN104499940B (en) * | 2014-11-02 | 2017-04-05 | 中国石油集团钻井工程技术研究院 | A kind of full rotation directional type steering tool and guidance method |
| CN104499940A (en) * | 2014-11-02 | 2015-04-08 | 中国石油集团钻井工程技术研究院 | Full-rotation sense type guide tool and guide method |
| CN106639875A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Experimental device of rotation steering measurement and control system |
| CN106639875B (en) * | 2015-10-30 | 2018-11-16 | 中石化石油工程技术服务有限公司 | A kind of rotary steering measurement and control system experiment device |
| CN105370207A (en) * | 2015-11-30 | 2016-03-02 | 西安石油大学 | Dynamic directional rotary steerable drilling tool |
| CN105370207B (en) * | 2015-11-30 | 2018-07-27 | 西安石油大学 | A kind of dynamic guiding type rotary steering drilling tool |
| CN106761401A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气股份有限公司 | Horizontal well drilling tool |
| CN106917585A (en) * | 2017-05-08 | 2017-07-04 | 天津中新安德科技有限公司 | A kind of rotary drilling guider |
| CN107780834A (en) * | 2017-08-22 | 2018-03-09 | 裴绪建 | A kind of guiding type rotary steering drilling tool |
| US11021911B2 (en) | 2017-11-14 | 2021-06-01 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Rotary guiding device based on radial driving force |
| CN108005579A (en) * | 2017-11-14 | 2018-05-08 | 中国科学院地质与地球物理研究所 | A kind of rotary guiding device based on radial drive power |
| CN107882507A (en) * | 2017-12-11 | 2018-04-06 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool |
| CN108678669A (en) * | 2018-07-24 | 2018-10-19 | 徐芝香 | There is the static directional type rotary steerable tool of packet |
| CN108678670A (en) * | 2018-08-01 | 2018-10-19 | 徐芝香 | Camcylinder pushing type rotary steerable tool |
| CN109083593B (en) * | 2018-08-10 | 2020-03-31 | 西安石油大学 | Hydraulic pushing drill bit directional guiding drilling tool |
| CN109025821A (en) * | 2018-08-10 | 2018-12-18 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool of mixed type |
| CN109083593A (en) * | 2018-08-10 | 2018-12-25 | 西安石油大学 | A kind of waterpower backup drill bit directional type guide drilling tool |
| CN110056323A (en) * | 2019-04-18 | 2019-07-26 | 江苏中船海洋设备有限公司 | Efficient duplex prevents that other bit freezing bores strand formula milling cone |
| CN110029937B (en) * | 2019-05-28 | 2020-08-28 | 西南石油大学 | Screw-driven rotary steering drilling tool |
| CN110029937A (en) * | 2019-05-28 | 2019-07-19 | 西南石油大学 | The rotary steering drilling tool of screw drive |
| CN112211556A (en) * | 2019-07-09 | 2021-01-12 | 万晓跃 | Static directional rotary guide device based on hydraulic principle |
| CN110410008A (en) * | 2019-07-22 | 2019-11-05 | 西南石油大学 | A kind of static state directional type hydraulic rotating steering tool |
| CN110284836A (en) * | 2019-08-14 | 2019-09-27 | 宏华油气工程技术服务（四川）有限公司 | A kind of bias executing agency |
| WO2022078476A1 (en) * | 2020-10-16 | 2022-04-21 | 中石化石油工程技术服务有限公司 | Steerable drilling device |
| WO2022206896A1 (en) * | 2021-04-02 | 2022-10-06 | 万晓跃 | High-reliability flexible drill rod |
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Application publication date: 20120725 |