CN102162336A - Locating device for rotary steering drilling tool of motor pump - Google Patents
Locating device for rotary steering drilling tool of motor pump Download PDFInfo
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- CN102162336A CN102162336A CN2011100492572A CN201110049257A CN102162336A CN 102162336 A CN102162336 A CN 102162336A CN 2011100492572 A CN2011100492572 A CN 2011100492572A CN 201110049257 A CN201110049257 A CN 201110049257A CN 102162336 A CN102162336 A CN 102162336A
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- oil sac
- drilling tool
- rotary steering
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Abstract
The invention relates to a locating device for a rotary steering drilling tool of a motor pump. The locating device comprises a control device, a drive device, an oil supply device and a guide device, and is characterized in that the control device controls the rotating speed of a motor in the drive device, and the motor drives a hydraulic pump to output oil with a pressure through a speed reducer so as to convert an electrical signal into a hydraulic driving force, and finally adjusts the flow of the oil output by the hydraulic pump; the guide device comprises a three-position four-way change valve and a piston rod; and the control device also controls the three-position four-way change valve to realize operation of the piston rod such as stretching, returning and position-keeping. The locating device has the advantages that by means of a pressure provided by a micro-pump driven through rotation of a micro-motor, an internal control circuit controls a miniature solenoid valve to regulate and control different hydraulic cylinders so that differential pressure balance is kept between the hydraulic cylinders and external slurry, and then an internal piston stretches out by virtue of the pressure so as to provide greater backup power for a wing plate, thus solving the problem of limited backup power provided by the existing locating device.
Description
Technical field
The invention belongs to the oilfield exploitation technical field, particularly relate to a kind of positioner that is used for the electric-motor pump rotary steering drilling tool.
Background technology
Present drilling assembly has great advantage aspect the complicated oil reservoir of efficient exploitation, but it also has the deficiency of self, that be exactly when being necessary this drilling technology still need to adopt curved housing motor to slide to creep into, can cause the track excessive distortion like this.Simultaneously, sliding to creep into is unfavorable for the well cleaning and effectively overcomes frictional resistance, and the TRAJECTORY CONTROL difficulty increases, and well track is difficult to continue to extend forward after reaching certain degree.The rotary steerable drilling technology produces in order to overcome above-mentioned defective, its purpose is exactly to creep into working method, make drilling tool in rotary drilling in order to cancel slip, realize the control of track, effectively overcoming some defectives of drilling technology, improve the overall efficiency of oil reservoir development, effectively avoiding significant aspect the drilling well risk.
In rotary steerable drilling system, rotary steerable tool is the core instrument in the rotary steering system, and the locating assembly device is the critical component of rotary steerable tool, final executing agency.The locating assembly device of present rotary steerable tool all is the pressure that utilizes the transmission of the outside mud pressure reduction of instrument to provide, by the different fluid cylinder of internal control circuit control miniature electromagnetic valve regulation and control can with outside mud pressure balance, thereby utilize this pressure to drive stretching out of internal piston, provide backup power to wing plate.But because the deficiency of inside and outside differential pressure in the drilling process, the backup power that causes present locating assembly device to provide is limited, so the present invention designs a kind of electric-motor pump dynamic positioning assembly.
Summary of the invention
The present invention provides a kind of positioner that is used for the electric-motor pump rotary steering drilling tool for solving the technical problem that exists in the known technology, this positioner that is used for the electric-motor pump rotary steering drilling tool is the pressure that utilizes micromachine rotating band actuating miniature pump to provide, by the different fluid cylinder of internal control circuit control miniature electromagnetic valve regulation and control can with outside mud pressure balance, thereby utilize this pressure to drive stretching out of internal piston, provide backup power to wing plate, the backup power that this positioner can provide is bigger, has solved the limited problem of backup power that present positioner can provide.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of positioner that is used for the electric-motor pump rotary steering drilling tool comprises control device, drive unit, oil sources device, guiding device, and drive unit links to each other with the oil sources device, it is characterized in that:
Motor speed in the control device accessory drive, motor drives the fluid that hydraulic pump output has pressure by reductor, the signal of telecommunication is converted into the flow of the output fluid of hydraulic-driven power and final regulator solution press pump;
Described guiding device comprises three position four-way directional control valve and piston rod, and control device is also controlled three position four-way directional control valve and realized the stretching out of piston rod, returns with the position and keep.
The present invention can also adopt following technical scheme:
Described oil sources device comprises a rubber oil sac, and the rubber oil sac is positioned at the oil sac chamber, and an end in oil sac chamber is uncovered, uncovered formation pressure transmission hole.Described rubber oil sac is installed on the oil sac chamber by the oil sac end fastener, and by the sealing of oil sac end seal.Second, the 3rd in described rubber oil sac and the housing is connected.
Described guiding device is positioned at the 3rd, comprise piston rod and displacement transducer, piston rod and displacement transducer iron core are affixed, and the displacement transducer iron core is embedded in the displacement transducer, and displacement transducer is by being installed in the 3rd with the 3rd displacement transducer locating part that is threaded.
Described motor is installed in second by the anti-rotation seal nipple, and the end of described anti-rotation seal nipple is shaped on anti-rotation groove.
Advantage and good effect that the present invention has are:
1, electric-motor pump dynamic positioning assembly of the present invention can be adjusted automatically in real time according to the ground control system instruction, finishes directional inclination according to re-set target.And do not need ceaselessly to pull out of hole and even repeatedly predict the deflecting directional effect by rule of thumb, thereby raise labour efficiency, reduce operating cost.
2, electric-motor pump dynamic positioning assembly of the present invention, for domestic still jejune steerable drilling technology provides reliable electric liquid guiding solution, utilize micromotor to drive hydraulic pump and promote piston for system provides hydraulic oil, for the guiding wing plate provides driving force, utilize the commutation function of 3-position 4-way solenoid operated directional valve to change the fluid flow direction, in order to the stretching out and withdraw of control piston bar, and then the open angle of control wing plate, so just make system architecture more simple.
3, electric-motor pump dynamic positioning assembly of the present invention adopts the embedded scm control device, and control device is simple in structure, and is real-time, and volume is little, and is in light weight, more is applicable to native system bulk features of limited, increases work efficiency greatly.
4, electric-motor pump dynamic positioning assembly of the present invention, adopt compressible rubber oil sac, transmit ambient pressure environment by the through hole on the housing, and all components such as motor all are among the work fluid in the system, so both played the balance external pressure, improve the benchmark oil pressure of system, reduced motor output torque and hydraulic pump works pressure, can reduce the sealing difficulty of system again.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, first; 2, second; 3, the 3rd; 4, rubber oil sac; 5, pressure transmission hole; 6, oil sac end fastener; 7, oil sac end seal; 8, motor; 9, reductor; 10, hydraulic pump; 11, three position four-way directional control valve; 12, overflow valve; 13, piston rod; 14, displacement transducer; 15, sensor iron core; 16, displacement transducer locating part; 17, anti-rotation seal nipple.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1,
A kind of positioner that is used for the electric-motor pump rotary steering drilling tool comprises control device, drive unit, oil sources device, guiding device, and drive unit links to each other with the oil sources device, it is characterized in that:
Motor speed in the control device accessory drive, motor 8 drives the fluid that hydraulic pump 10 outputs have pressure by reductor 9, the signal of telecommunication is converted into the flow of the output fluid of hydraulic-driven power and final regulator solution press pump;
Described guiding device comprises three position four-way directional control valve 11 and piston rod 13, and control device is also controlled three position four-way directional control valve and realized the stretching out of piston rod, returns with the position and keep.
Described oil sources device comprises a rubber oil sac 4, and the rubber oil sac is positioned at the oil sac chamber, and the oil sac chamber promptly is in first 1, and an opening in oil sac chamber forms pressure transmission hole 5.Described rubber oil sac is installed on first by oil sac end fastener 6, and by 7 sealings of oil sac end seal.Hydraulic pump 10 in described rubber oil sac and the housing in second 2 is connected.The rubber oil sac is experienced extraneous slurry environment pressure by the pressure transmission hole on the housing, for whole hydraulic system provides the benchmark static pressure, and the work of storage fluid.For the sealing of rubber oil sac end, should guarantee that oil sac is installed and the convenience of charge of oil, consider sealing performance again, guarantee that fluid is not contaminated, therefore adopt the segmentation crush seal.
Described guiding device is positioned at the 3rd, comprise piston rod 13 and displacement transducer 14, piston rod and displacement transducer iron core 15 are affixed, the displacement transducer iron core is embedded in the displacement transducer, and displacement transducer is by being installed in the 3rd 3 with the 3rd displacement transducer locating part 16 that is threaded.
Described motor is installed in second by anti-rotation seal nipple 17, because the rotation of motor should consider to seal the anti-rotation of considering motor again when design, therefore has anti-rotation groove in the end of anti-rotation seal nipple.
Control device is according to feedback signals such as instruction and the displacement transducer 14 of surveying, motor current, the commutation of Comprehensive Control three position four-way directional control valve 11 and motor speed.
Dc motor adopts the PWM variable voltage control usually, can realize the permanent torque control of this motor.Its method is that singlechip CPU is according to the velocity error controlled quentity controlled variable of gathering, calculating, export the PWM pulse-width signal of dutycycle in proportion, send into the logic synthesis allocation units, remove to control three-phase bridge type converter, and then make motor just carry out/reverse operation according to certain rules.As long as regulate rotary speed setting value, the dutycycle that just can regulate PWM has also just been regulated the voltage that is added on the motor, thereby has realized the stepless stepless speed control of motor speed.The feedback signal of motor speed can be measured indirectly by the rotor-position sensor output pulse signal, the given signal of speed and speed feedback signal are sent into single-chip microcomputer to carry out data and handles, adopt the speed closed loop regulative mode, can realize the automatic adjusting and the speed stabilizing of rotating speed, accurate speed governing and the velocity-stabilization control within the specific limits of assurance system.
Because selected hydraulic pump is constant displacement pump, rotating speed is by Motor Control, the duty difference of system, and the rotating speed of pump is also different.In piston stick force hour, the high rotating speed of trying one's best can be arranged, provide bigger flow, to obtain the piston rod speed of trying one's best high; When the piston stick force is big, because the restriction of motor power (output) needs to guarantee charge oil pressure, reduce rotating speed.
Control device can change the oil circuit duty by the control ratio reversal valve, has reached the purpose that makes the guide piston bar stretch out and withdraw.Because the installation dimension restriction needs the special three position four-way directional control valve of design, when the design reversal valve, for preventing system overload, an overflow valve 12 in parallel between hydraulic pump oil-out and inlet port.
Method of operating of the present invention is described below:
When drilling bit needs to lead in traveling process, by ground control system preset instructions is sent to electric-motor pump dynamic positioning assembly, after electric-motor pump dynamic positioning assembly receives command signal, by taking by the single-chip microcomputer as the commutation of control core circuit control 3-position 4-way solenoid operated directional valve, the stretching out and withdraw of control piston bar.Regulate the rotating speed of motor simultaneously, thereby the flow of control hydraulic pump output fluid improves the speed that piston rod stretches out and withdraws as much as possible under the prerequisite that guarantees power output.
By the feedback signal of detecting position displacement sensor, after piston rod stretched out or is withdrawn into assigned address, the 3-position 4-way solenoid operated directional valve switched to meta, realized that piston rod position keeps.After control device receives regulating command once more, will control the reversal valve commutation once more and regulate motor speed.
The electromagnet of motor, 3-position 4-way solenoid operated directional valve, the power line of displacement transducer and holding wire are received control device through sealing electric connector and sealing electrical connector.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (7)
1. a positioner that is used for the electric-motor pump rotary steering drilling tool comprises control device, drive unit, oil sources device, guiding device, and drive unit links to each other with the oil sources device, it is characterized in that:
Motor speed in the control device accessory drive, motor drives the fluid that hydraulic pump output has pressure by reductor, the signal of telecommunication is converted into the flow of the output fluid of hydraulic-driven power and final regulator solution press pump;
Described guiding device comprises three position four-way directional control valve and piston rod, and control device is also controlled three position four-way directional control valve and realized the stretching out of piston rod, returns with the position and keep.
2. the positioner that is used for the electric-motor pump rotary steering drilling tool according to claim 1 is characterized in that: described oil sources device comprises a rubber oil sac, and the rubber oil sac is positioned at the oil sac chamber, and an end in oil sac chamber is uncovered, uncovered formation pressure transmission hole.
3. the positioner that is used for the electric-motor pump rotary steering drilling tool according to claim 2 is characterized in that: described rubber oil sac is installed on the oil sac chamber by the oil sac end fastener, and by the sealing of oil sac end seal.
4. the positioner that is used for the electric-motor pump rotary steering drilling tool according to claim 2 is characterized in that: second, the 3rd in described rubber oil sac and the housing is connected.
5. the positioner that is used for the electric-motor pump rotary steering drilling tool according to claim 1, it is characterized in that: described guiding device is positioned at the 3rd, comprise piston rod and displacement transducer, piston rod and displacement transducer iron core are affixed, the displacement transducer iron core is embedded in the displacement transducer, and displacement transducer is by being installed in the 3rd with the 3rd displacement transducer locating part that is threaded.
6. the positioner that is used for the electric-motor pump rotary steering drilling tool according to claim 1 is characterized in that: described motor is installed in second by the anti-rotation seal nipple, and the end of described anti-rotation seal nipple is shaped on anti-rotation groove.
7. electric-motor pump dynamic positioning assembly as claimed in claim 1, it is characterized in that: adopt electric liquid drive unit, drive hydraulic pump output fluid by dc motor through reductor, electric energy is converted into the hydraulic pressure energy, the signal of telecommunication is converted into bigger hydraulic-driven power, in the confined space, utilizes micromotor and the bigger power of micro hydraulic pump output to become possibility thereby make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110049257 CN102162336B (en) | 2011-03-01 | 2011-03-01 | Locating device for rotary steering drilling tool of motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110049257 CN102162336B (en) | 2011-03-01 | 2011-03-01 | Locating device for rotary steering drilling tool of motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162336A true CN102162336A (en) | 2011-08-24 |
| CN102162336B CN102162336B (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110049257 Expired - Fee Related CN102162336B (en) | 2011-03-01 | 2011-03-01 | Locating device for rotary steering drilling tool of motor pump |
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| CN (1) | CN102162336B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150103A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | The hydraulic module of vertical drilling tool |
| CN108194434A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Plunger bias formula rotary steering hydraulic device |
| CN115370348A (en) * | 2022-08-31 | 2022-11-22 | 西南石油大学 | Mud-driven rotary steering drilling control method |
| CN115370348B (en) * | 2022-08-31 | 2024-06-11 | 西南石油大学 | Mud-driven rotary steering drilling control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238768A (en) * | 1994-02-25 | 1995-09-12 | Sumitomo Metal Mining Co Ltd | Drilling direction control mechanism-equipped drilling device |
| EP0811745A1 (en) * | 1996-06-07 | 1997-12-10 | Baker Hughes Incorporated | Steering device for a directional drilling tool |
| CN1263977A (en) * | 1998-12-11 | 2000-08-23 | 施卢默格控股有限公司 | Rotation steerable drilling system using sliding sleeve |
| WO2002014649A1 (en) * | 2000-08-15 | 2002-02-21 | Tesco Corporation | Underbalanced drilling tool and method |
| CN101586440A (en) * | 2009-05-11 | 2009-11-25 | 中国海洋石油总公司 | Oriented rotational guide drilling tool |
| CN202031481U (en) * | 2011-03-01 | 2011-11-09 | 中国海洋石油总公司 | Positioning device used for rotary steering drilling tool with motor pump |
-
2011
- 2011-03-01 CN CN 201110049257 patent/CN102162336B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238768A (en) * | 1994-02-25 | 1995-09-12 | Sumitomo Metal Mining Co Ltd | Drilling direction control mechanism-equipped drilling device |
| EP0811745A1 (en) * | 1996-06-07 | 1997-12-10 | Baker Hughes Incorporated | Steering device for a directional drilling tool |
| CN1263977A (en) * | 1998-12-11 | 2000-08-23 | 施卢默格控股有限公司 | Rotation steerable drilling system using sliding sleeve |
| WO2002014649A1 (en) * | 2000-08-15 | 2002-02-21 | Tesco Corporation | Underbalanced drilling tool and method |
| CN101586440A (en) * | 2009-05-11 | 2009-11-25 | 中国海洋石油总公司 | Oriented rotational guide drilling tool |
| CN202031481U (en) * | 2011-03-01 | 2011-11-09 | 中国海洋石油总公司 | Positioning device used for rotary steering drilling tool with motor pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150103A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | The hydraulic module of vertical drilling tool |
| CN108194434A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Plunger bias formula rotary steering hydraulic device |
| CN108194434B (en) * | 2018-01-03 | 2024-03-26 | 中国石油天然气集团有限公司 | Plunger offset type rotary guiding hydraulic device |
| CN115370348A (en) * | 2022-08-31 | 2022-11-22 | 西南石油大学 | Mud-driven rotary steering drilling control method |
| CN115370348B (en) * | 2022-08-31 | 2024-06-11 | 西南石油大学 | Mud-driven rotary steering drilling control method |
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| Publication number | Publication date |
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| CN102162336B (en) | 2013-12-18 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Dongcheng District, Chaoyangmen, North Street, No. 25, ocean Oil Mansion, No. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee after: CNOOC Research Institute Patentee after: CNOOC Energy Technology & Sevices-Supervision &Technology Co. Address before: 100010 Dongcheng District, Chaoyangmen, North Street, No. 25, ocean Oil Mansion, No. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee before: CNOOC RESEARCH CENTER Patentee before: CNOOC Energy Technology & Sevices-Supervision &Technology Co. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161221 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee after: CNOOC Research Institute Address before: 100010 Dongcheng District, Chaoyangmen, North Street, No. 25, ocean Oil Mansion, No. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee before: CNOOC Research Institute Patentee before: CNOOC Energy Technology & Sevices-Supervision &Technology Co. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |