CN204357350U - Based on the pinpoint driving control system of the angle of directly driving top-drive motor - Google Patents
Based on the pinpoint driving control system of the angle of directly driving top-drive motor Download PDFInfo
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- CN204357350U CN204357350U CN201420840474.2U CN201420840474U CN204357350U CN 204357350 U CN204357350 U CN 204357350U CN 201420840474 U CN201420840474 U CN 201420840474U CN 204357350 U CN204357350 U CN 204357350U
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Abstract
The utility model discloses based on the pinpoint driving control system of the angle of directly driving top-drive motor, it comprises drive system, control system and executing agency: drive system comprises variable-frequency control asynchronous motor, (8), magneto-electric encoder, guide rail (2), standpipe (10) and mwd system pressure signal sensor (11) are driven in top; Control system includes tool-face decoder (3), dynamic tool face controller (6), angle signal processor (5) and top and drives servo and brakes (4); Executing agency comprises drilling rod (15), rig floor (12), measurement-while-drilling system (16), bent angle formula deflecting power drilling tool (17) and drill bit (13).The beneficial effects of the utility model are: magneto-electric encoder, the anglec of rotation registration of motor; By control system Real-Time Monitoring tool-face, and tool-face angle is controlled, improve drilling efficiency, use manpower and material resources sparingly, reduce the possibility that down-hole accident occurs.
Description
Technical field
The utility model relates to the accurate Locating driver system of angle that tool-face controls during oilfield drilling, particularly based on the pinpoint driving control system of the angle of directly driving top-drive motor.
Background technology
In conventional drilling operation process, straight well section and steady tilted section adopt stepper motor or Serve Motor Control top to drive or carousel mode rotary drilling usually, but be no matter adopt stepper motor or servomotor carrys out control tool face angle, accurate all not, tool-face cannot be reflected in time and whether offset.Steerable drilling section is according to down-hole bent angle formula deflecting power drilling tool, then usually use slide drilling mode, under the conditions such as pumpage adjustment, formation lithology change, power drilling tool wearing and tearing, easily produce the drift of drilling tool face, the problem such as cause hole trajectory control unsuccessfully.In the face of this situation, common way is after downhole tool face drift, adopt stop boring, on carry that the method for drilling tool is again lower bores and setting means face, and this process will affect operating efficiency, and easily down-hole accident occur.Meanwhile, in conventional steering drilling tool slipping drilling process, because drilling tool can not rotate, cause apply the pressure of the drill delayed, hole cleaning is difficult, easily causes the problems such as operating efficiency is low, complex procedures.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides that a kind of angle orientation is accurate, drilling efficiency is high and down-hole accident is few based on the pinpoint driving control system of the angle of directly driving top-drive motor.
The purpose of this utility model is achieved through the following technical solutions: based on the pinpoint driving control system of the angle of directly driving top-drive motor, it comprises drive system, control system and executing agency, wherein,
Described drive system comprise directly drive top-drive motor, top is driven, angular transducer, guide rail, standpipe and mwd system pressure signal sensor, the output shaft directly driving top-drive motor is coaxially connected with the main shaft that top is driven, angular transducer is arranged at and directly drives on the axle of top-drive motor, directly driving top-drive motor is slidably mounted on guide rail, top is driven and is connected with standpipe, standpipe is provided with mwd system pressure signal sensor;
Described control system includes tool-face decoder, dynamic tool face controller, servo and brakes are driven in angle signal processor and top, the input of tool-face decoder is connected with mwd system pressure signal sensor, the output of tool-face decoder is connected with the input of dynamic tool face controller, the input of dynamic tool face controller is connected with the input of angle signal processor, the output of dynamic tool face controller drives servo with top and is connected with brakes, top is driven servo and brakes and is directly driven top-drive motor and be connected, the input of angle signal processor is connected with angular transducer,
Described executing agency comprises drilling rod, rig floor, measurement-while-drilling system, bent angle formula deflecting power drilling tool and drill bit, the main shaft that upper end and the top of drilling rod are driven coaxially is connected, the guide rail of described drive system is fixedly mounted on rig floor, drilling rod is through rig floor, the lower end of drilling rod is connected with one end of measurement-while-drilling system, bent angle formula deflecting power drilling tool is connected with the other end of measurement-while-drilling system, and drill bit is installed on the end of bent angle formula deflecting power drilling tool.
The described top-drive motor that directly drives is variable-frequency control asynchronous motor.
Described angular transducer is magneto-electric encoder.
Be provided with preventer bottom described rig floor, drill rod sleeve is loaded on the center of preventer.
The described top of directly driving top-drive motor is also provided with ventilation fan.
The described top-drive motor that directly drives is slidably mounted on guide rail by tourist bus, and angular transducer is arranged on and directly drives on the main shaft of top-drive motor.
The utility model has the following advantages:
1. adopt variable-frequency control asynchronous motor as motor driver, by frequency conversion system or SCR system, use Numeric Control Technology, Direct driver central axis, drive rod boring, the moment of torsion of generation is large, rotating speed is low, precision is high.
2. the magneto-electric encoding angle sensor by arranging on the main shaft of variable-frequency control asynchronous motor, the anglec of rotation realizing top-drive motor is accurately located.
3. the Dynamic controlling of downhole orientation power drilling tool tool-face is realized by dynamic tool face controller, when there is drift in drilling tool face, dynamic tool face controller can be operated in real time, adjustment drilling tool face, avoid equipment stop bore, on carry drilling tool, thus minimizing equipment loss, significantly use manpower and material resources sparingly, greatly reduce the generation of down-hole accident simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of drive system
Fig. 3 is control flow schematic diagram of the present utility model
In figure: 1-ventilation fan, 2-guide rail, 3-tool-face decoder, 4-drives servo and brakes, 5-angle signal processor, 6-dynamic tool face controller in top, 7-directly drives top-drive motor, and 8-drives on top, 9-angular transducer, 10-standpipe, 11-MWD system pressure signal sensor, 12-rig floor, 13-drill bit, 14-preventer, 15-drilling rod, 16-measurement-while-drilling system, 17-bent angle formula deflecting power drilling tool.
Detailed description of the invention
Be further described the utility model below in conjunction with accompanying drawing, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, based on the pinpoint driving control system of the angle of directly driving top-drive motor, it comprises drive system, control system and executing agency, wherein, drive system, it comprises directly drives top-drive motor 7, top drives 8, angular transducer 9, guide rail 2, standpipe 10 and MWD(Measure While Drilling, measurement while drilling) system pressure signal sensor 11, the output shaft directly driving top-drive motor 7 is coaxially connected with the main shaft that top drives 8, angular transducer 9 be arranged at directly drive top-drive motor 7 axle on, directly driving top-drive motor 7 is slidably mounted on guide rail 2, in this example, the top of directly driving top-drive motor 7 is also provided with ventilation fan 1, ventilation fan 1 can carry out ventilating and cooling to directly driving top-drive motor 7, increase the application life of directly driving top-drive motor 7, directly drive top-drive motor 7 for variable-frequency control asynchronous motor, top is driven 8 and is connected with standpipe 10, standpipe 10 is provided with mwd system pressure signal sensor 11, control system, it includes tool-face decoder 3, dynamic tool face controller 6, servo and brakes 4 are driven in angle signal processor 5 and top, the input of tool-face decoder 3 is connected with mwd system pressure signal sensor 11, the output of tool-face decoder 3 is connected with the input of dynamic tool face controller 6, the input of dynamic tool face controller 6 is connected with the input of angle signal processor 5, output and the top of dynamic tool face controller 6 are driven servo and are connected with brakes 4, top is driven servo and brakes 4 and is directly driven top-drive motor 7 and be connected, the input of angle signal processor 5 is connected with angular transducer 9, executing agency, it comprises drilling rod 15, rig floor 12, measurement-while-drilling system 16, bent angle formula deflecting power drilling tool 17 and drill bit 13, the main shaft that upper end and the top of drilling rod 15 drive 8 is coaxially connected, the guide rail 2 of described drive system is fixedly mounted on rig floor 12, drilling rod 15 is through rig floor 12, the lower end of drilling rod 15 is connected with one end of measurement-while-drilling system 16, bent angle formula deflecting power drilling tool 17 is connected with the other end of measurement-while-drilling system 16, drill bit 13 is installed on the end of bent angle formula deflecting power drilling tool 17, in this example, preventer 14 is provided with bottom rig floor 12, drilling rod 15 is set in the center of preventer 14.
In the present embodiment, as shown in Figure 2, directly drive top-drive motor 7 and be slidably mounted on guide rail 2 by tourist bus, angular transducer 9 be arranged on directly drive top-drive motor 7 main shaft on, angular transducer 9 is magneto-electric encoder.
Specific works process of the present utility model is as follows: MWD signal under mwd system pressure signal sensor 11 production wells of drilling equipment, and send the down-hole MWD signal collected to tool-face decoder 3, tool-face decoder 3 pairs of MWD signals are decoded, and downhole tool surface information is passed to dynamic tool face controller 6; The downhole tool surface information received is carried out Logic judgment by dynamic tool face controller 6, judge whether to exceed the threshold values of setting in dynamic tool face controller 6, if do not exceed setting threshold values, then do not take regulating measures, continue to creep into, if exceed setting threshold values, then start the servo-drive system of pushing up and driving in servo and brakes 4; Servo is driven on top and brakes 4 adjusts pushing up the angle of driving, until dynamic tool face controller 6 judges that the angle value of current angle value to setting is driven on top, then push up the brake system top of driving servo and brakes 4 to drive, brake, locking tool face also continues to creep into.
Claims (6)
1. based on the pinpoint driving control system of the angle of directly driving top-drive motor, it is characterized in that: it comprises drive system, control system and executing agency; Wherein,
Described drive system comprise directly drive top-drive motor (7), top drive (8), angular transducer (9), guide rail (2), standpipe (10) and mwd system pressure signal sensor (11), the output shaft directly driving top-drive motor (7) drives (8) main shaft with top is coaxially connected, angular transducer (9) be arranged at directly drive top-drive motor (7) axle on, directly driving top-drive motor (7) is slidably mounted on guide rail (2), top is driven (8) and is connected with standpipe (10), standpipe (10) is provided with mwd system pressure signal sensor (11);
Described control system includes tool-face decoder (3), dynamic tool face controller (6), servo and brakes (4) are driven in angle signal processor (5) and top, the input of tool-face decoder (3) is connected with mwd system pressure signal sensor (11), the output of tool-face decoder (3) is connected with the input in dynamic tool face controller (6), the input in dynamic tool face controller (6) is connected with the input of angle signal processor (5), output and the top in dynamic tool face controller (6) are driven servo and are connected with brakes (4), top is driven servo and brakes (4) and is directly driven top-drive motor (7) and be connected, the input of angle signal processor (5) is connected with angular transducer (9),
Described executing agency comprises drilling rod (15), rig floor (12), measurement-while-drilling system (16), bent angle formula deflecting power drilling tool (17) and drill bit (13), (8) are driven in the upper end of drilling rod (15) main shaft with top is coaxially connected, the guide rail (2) of described drive system is fixedly mounted on rig floor (12), drilling rod (15) is through rig floor (12), the lower end of drilling rod (15) is connected with one end of measurement-while-drilling system (16), bent angle formula deflecting power drilling tool (17) is connected with the other end of measurement-while-drilling system (16), drill bit (13) is installed on the end of bent angle formula deflecting power drilling tool (17).
2. the pinpoint driving control system of the angle based on directly driving top-drive motor according to claim 1, is characterized in that: the described top-drive motor (7) that directly drives is variable-frequency control asynchronous motor.
3. the pinpoint driving control system of the angle based on directly driving top-drive motor according to claim 1, is characterized in that: described angular transducer (9) is magneto-electric encoder.
4. the pinpoint driving control system of the angle based on directly driving top-drive motor according to claim 1, is characterized in that: described rig floor (12) bottom is provided with preventer (14), and drilling rod (15) is set in the center of preventer (14).
5. the pinpoint driving control system of the angle based on directly driving top-drive motor according to claim 1, is characterized in that: the described top of directly driving top-drive motor (7) is also provided with ventilation fan (1).
6. the pinpoint driving control system of the angle based on directly driving top-drive motor according to claim 1, it is characterized in that: the described top-drive motor (7) that directly drives is slidably mounted on guide rail (2) by tourist bus, angular transducer (9) be arranged on directly drive top-drive motor (7) main shaft on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840474.2U CN204357350U (en) | 2014-12-26 | 2014-12-26 | Based on the pinpoint driving control system of the angle of directly driving top-drive motor |
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| CN201420840474.2U CN204357350U (en) | 2014-12-26 | 2014-12-26 | Based on the pinpoint driving control system of the angle of directly driving top-drive motor |
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| CN204357350U true CN204357350U (en) | 2015-05-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064979A (en) * | 2015-07-13 | 2015-11-18 | 中国海洋石油总公司 | Turntable type drilling machine system based on tool surface dynamic control of underground drilling tool and drilling method based on tool surface dynamic control of underground drilling tool |
| CN113482590A (en) * | 2021-08-04 | 2021-10-08 | 西南石油大学 | Bending screw rod deflecting parameter control method and system based on downhole robot |
-
2014
- 2014-12-26 CN CN201420840474.2U patent/CN204357350U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064979A (en) * | 2015-07-13 | 2015-11-18 | 中国海洋石油总公司 | Turntable type drilling machine system based on tool surface dynamic control of underground drilling tool and drilling method based on tool surface dynamic control of underground drilling tool |
| CN105064979B (en) * | 2015-07-13 | 2017-08-04 | 中国海洋石油总公司 | Rotary drilling machine system and boring method based on down-hole equipment tool-face dynamic control |
| CN113482590A (en) * | 2021-08-04 | 2021-10-08 | 西南石油大学 | Bending screw rod deflecting parameter control method and system based on downhole robot |
| CN113482590B (en) * | 2021-08-04 | 2023-09-01 | 西南石油大学 | Method and system for controlling bending screw deflecting parameters based on downhole robot |
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