CN204899774U - Rotatory steerable drilling control system structure - Google Patents
Rotatory steerable drilling control system structure Download PDFInfo
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- CN204899774U CN204899774U CN201520686632.8U CN201520686632U CN204899774U CN 204899774 U CN204899774 U CN 204899774U CN 201520686632 U CN201520686632 U CN 201520686632U CN 204899774 U CN204899774 U CN 204899774U
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- 238000005553 drilling Methods 0.000 title claims abstract description 63
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Abstract
The utility model discloses a rotatory steerable drilling control system structure, including ground control system, ground control case, bypass valve, MWD system, always control board and main control board in the pit, still including generator, generator erection section, coupler in the pit and be used for installing the coupler construction section of this coupler, nearly drill bit attitude data acquires subassembly and power strip, generator fixed mounting is in the inside of generator erection section in the pit, and the tip of the coupler construction section on the tip of generator erection section and the steering tool link up and fixed connection mutually, nearly drill bit attitude data obtains the subassembly and includes the triaxial accelerometer who sets up with the circuit storehouse, triaxial accelerometer and main control board signal connection with the axial, the power of main control board carries the end to be connected with battery in the circuit storehouse through the power strip, the main control board is connected with being used for the control signal terminal who controls the hydraulic pressure mechanism of rib action. The hardware part structure that has the well drilling control system of automation, intellectuality, high efficiency functional characteristics has been obtained.
Description
Technical Field
The utility model belongs to oil exploration and development field, concretely relates to rotary steering well drilling control system structure.
Background
The rotary steerable drilling technology originated in the late 80 s of the last century and developed on the basis of sliding steerable drilling technology and technology to meet the actual needs of the oil industry as the level of related technology has increased. The basic idea is to apply a certain continuous variable lateral force to a rotary drill string in a specific direction near a drill bit through a specific underground steering tool under the coordination of the bit weight drilling rate and the pump amount while rotating to drill a well, so as to artificially change the advancing direction of the drill bit, thereby achieving the purpose of geometric steering or geological steering in rotation.
Compared with the traditional drilling technology, the rotary steering drilling technology can enable the drill bit to be in a continuous rotating state, so that the well hole purifying effect is better, the well trajectory control precision is higher, the drilling speed is higher, the probability of accidents such as drill sticking is lower, and the displacement extension capacity is stronger. If the geosteering nipple is matched, the drill bit can automatically find an oil layer at the bottom of the well to drill, so that the method has important significance for exploration and development of oil and gas resources and improvement of oil and gas recovery ratio of an oil field.
At present, the rotary steerable drilling technology is mainly mastered in a few foreign petroleum technical service companies, the steering control technology and the steering tool instrument owned by the rotary steerable drilling technology are strictly kept secret based on own interests, and monopoly, technically limited, internationally restricted in bidding and delayed in service are provided, so that the progress of the drilling technology of the petroleum industry in China is seriously influenced, the competitive ability of the domestic drilling team in developing the offshore drilling market is restricted, and the rotary steerable drilling technology becomes the bottleneck of the technological development progress of the petroleum drilling industry in China.
In the prior art, patent No. CN102022082B discloses a method and apparatus for downloading surface commands for controlling a rotary steerable drilling tool. However, when the technical scheme is used for drilling, because the drilling track of the drill bit deviates from the designed borehole track, the drilling track needs to be adjusted by repeatedly transmitting control instructions to the rotary steering drilling tool through the ground control system, so that the drilling period is prolonged, and the improvement of the drilling efficiency is limited.
It is against the above background that the applicant has developed a research project directed to the rotary steerable drilling technique.
The rotary steering drilling technology can be divided into a static type and a dynamic type from the motion mode of a steering mechanism, can be divided into a pushing type and a pointing type from the mode of steering force generation, and currently, domestic users generally adopt a static offset pushing type rotary steering drilling tool. Through research and development for many years, the applicant has completed the overall structure design of the static offset push-pull type rotary steerable drilling tool and successively proposed a series of technical schemes (with the notice numbers of CN103939017A, CN203783462U, CN203783488U and CN203783461U respectively) with the theme of "static offset push-pull type rotary steerable drilling tool", and the "static offset push-pull type rotary steerable drilling tool" can replace foreign like products for use by virtue of the advantages of reasonable structure, high reliability and the like.
However, the applicant finds in practice that it is difficult to achieve the automation, intelligence and high efficiency of drilling required by the modern oil exploration industry only by proposing the technical scheme of the static offset push type rotary steering drilling tool (with the publication number of CN 103939017A).
Therefore, the applicant considers that a structure of a static bias push-type rotary steering drilling tool is combined to design a corresponding structure of a rotary steering drilling control system so as to obtain a hardware part structure of the drilling control system with the characteristics of automation, intellectualization and high efficiency.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to combine a structure of a static bias push-type rotary steering drilling tool (the bulletin numbers are respectively CN 103939017A) to provide a structure of a rotary steering drilling control system so as to obtain a hardware part structure of the drilling control system with the characteristics of automation, intellectualization and high efficiency.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a rotary steering drilling control system comprises a ground control system, a ground control box, a bypass valve, an MWD system, an underground main control board with a decoding unit and a main control board capable of controlling the action of a wing rib in a steering tool; wherein,
the ground control system comprises an upper computer;
the ground control system is electrically connected with the ground control box;
the bypass valve is arranged on a bypass branch pipe connected with the slurry pipeline, and a signal control end on the bypass valve is electrically connected with the ground control box; the mud pipeline is used for conveying drilling fluid and connecting the guiding tool with a mud pump arranged on the ground;
the device also comprises an underground generator, a generator mounting section, a coupler mounting section for mounting the coupler, a near-bit attitude data acquisition assembly and a power panel;
the underground generator is fixedly arranged in a generator mounting section which is cylindrical as a whole and has a hollow structure, and the end part of the generator mounting section is communicated and fixedly connected with the end part of a coupler mounting section on the guiding tool;
the underground master control board is arranged at the coupler mounting section, is provided with a receiving end connected with the output end of the underground generator and is used for receiving the electric energy generated by the underground generator and decoding the instruction carried in the mud through a decoding unit; the underground master control board is also provided with a connecting end connected with a primary coil of the coupler and a signal end connected with the MWD system signal;
the secondary coil of the coupler is in signal connection with the main control board;
the near-bit attitude data acquisition assembly and the power panel are fixedly arranged in a circuit bin on the guiding tool; the near-bit attitude data acquisition assembly comprises a triaxial accelerometer which is coaxially arranged with the circuit cabin in the Z direction, and the triaxial accelerometer is in signal connection with the main control board; the power supply conveying end of the main control board is connected with a storage battery in the circuit bin through a power supply board; the main control board is connected with a control signal end of a hydraulic mechanism for controlling the movement of the wing ribs.
The utility model discloses in the control system structure, in the circuit storehouse was located to battery (high temperature rechargeable battery), the main objective was that the system can provide the power for the main control board when having a power failure (need close the slush pump and make the outage circumstances when the generator stall in the pit when connecing drilling rod etc.) for the main control board can gather static nearly drill bit gesture data in real time ceaselessly, provides the foundation for accurate control.
When the underground electric power generating device is in normal drilling work, the voltage output by the underground electric power generating device is rectified and stabilized to supply power to the underground master control board and the master control board, and meanwhile, the storage battery is charged.
When a power failure occurs and a drill rod is connected, the storage battery is switched to supply power to the outside, the main control board acquires static data such as a three-axis accelerometer, a temperature sensor and a pressure sensor (the pressure sensor is arranged in an oil injection pipeline and is correspondingly provided with a notice number CN103939017A, and the topic is 'pressure sensor 18' in the technical scheme of 'static bias push-type rotary steering drilling tool'), and does not issue a command to a hydraulic mechanism for controlling the action of a wing rib; and meanwhile, the acquired static data is stored, when the system is powered on again, the stored static data is uploaded to the MWD system at the first time, and the stored static data is compared with the dynamic data acquired in real time by a program in the main control board to quickly acquire correct parameters so as to guide the next drilling action.
As an improvement, the near-bit attitude data acquisition assembly further comprises a temperature sensor, and the temperature sensor is in signal connection with the master controller.
Because the sensors (the three-axis accelerometer and the pressure sensor in the technical scheme) generally have a certain temperature coefficient, the output signals of the sensors can drift along with the temperature change, the temperature drift is called as 'temperature drift', and in order to reduce the temperature drift, some compensation measures are adopted to offset or reduce the temperature drift of the output signals to a certain extent, and the temperature drift is temperature compensation. The event is including installing the temperature sensor back in the circuit bin when nearly drill bit gesture data acquisition subassembly, can real-time detection be close to the ambient temperature of drill bit department to come to carry out temperature compensation to the sensor according to this temperature value, thereby ensure that the more accurate data of sensor output, further improve and do benefit to the control accuracy who guarantees this control system structure. In addition, temperature sensor's setting can also detect and the early warning to temperature in the pit, lets the electron device in the guiding tool can both be in the temperature range of suitable work to improve the application reliability of this control system structure.
As an improvement, the underground main control board is connected with the MWD system through an MWD adapter board.
After the above improvement is implemented, because the MWD system is a complete subsystem, the downhole main control board can form an electrical interface (i.e., "QBUS electrical connection") on a physical link connected to the MWD system through the MWD adapter board, so as to upload the near bit attitude data through the MWD system. The reason why the QBUS is selected to be electrically connected is that the QBUS signal is simple (one signal line and one ground line), the communication distance is long, and the QBUS signal is not easily interfered.
Compared with the prior art, adopt the utility model discloses a rotary steering well drilling control system structure can have following beneficial technological effect:
1. the control is simpler and more efficient, and the cost and the time are saved.
The utility model discloses the control system structure only needs to issue an instruction to with this instruction storage to the main control board. The main control board is connected with each sensor for measuring the attitude data of the near bit in the circuit bin, so that the attitude data of the near bit can be obtained in real time, the attitude data of the near bit is compared with the data of the instruction in real time, and once the deviation is found, the wing rib is controlled to guide according to a resultant force decomposition algorithm and the decomposition of the current attitude data of the near bit, so that the deviation is eliminated. It can be seen that the utility model discloses can combine "static biasing pushing type rotary steering drilling tool" structure (notice number is CN103939017A respectively) to realize intelligent closed-loop control, creep into according to the orbit of design automatically high-efficiently, and make ground control system's control only play the additional action. In the rotary steering control system in the prior art, the control of the ground control system plays a leading role, the drilling condition of the drill bit needs to be monitored through the ground control system, and the drilling track of the drill bit needs to be adjusted through issuing control instructions for multiple times through the ground control system.
In addition, still because of near drill bit gesture data acquisition subassembly fixed mounting in the circuit storehouse on the direction instrument, adjacent drill bit setting (near drill bit gesture data acquisition subassembly and drill bit between the distance about 0.5-1.5 meters), so, can make each sensor in the near drill bit gesture data acquisition subassembly obtain the gesture data that the gesture data more is close to drill bit place, thereby can make the utility model discloses control system structure's control speed, degree of accuracy and precision are higher, can obtain more ideal control effect.
2. More accurate and abundant data are obtained, and more limited drilling site monitoring is realized.
Adopt the utility model discloses a control system structure can come the main control board with the help of the data transmission passageway of MWD system in the data acquisition, calculate the data that obtain and the alarm information that probably appears in time upload. The system can store the issued instruction information and store the data of each sensor used for measuring the attitude data of the near-bit in a timed or real-time manner. This allows for the storage and display of a large amount of rich data in the surface control system configuration or in the MWD system at the surface, which data is of great benefit for on-site monitoring and post-completion analysis.
Drawings
FIG. 1 is a half-sectional view of a static offset push-on rotary steerable drilling tool of publication number CN 103939017A.
Figure 2 is a cross-sectional view of a circuit mounting section in a static offset push-on rotary steerable drilling tool of publication number CN 103939017A.
Fig. 3 is a block diagram of the structure of the rotary steerable drilling control system of the present invention.
In the figure, 1-non-rotating outer sleeve, 2-tapered roller bearing, 3-O-ring, 4-rib manifold block, 5-rib, 6-plunger, 7-rotating shaft, 8-reset spring, 10-oil circuit manifold block, 12-motor base, 14-servo motor, 15-coupler, 16-plunger pump, 19-pump mounting base, 21-joint, 22-circuit cabin, 23-compression barrel, 24-sealing ring, 25-control circuit board (namely "main control board" in the control system structure), 26-storage battery, 27-external pressure sensor filter screen, 28-external pressure sensor, 29-test cover plate, 30-coupler shell, 31-coupler (namely "coupler" in the control system structure), 32-outlet cover plate, 33-upper bearing base, 34-rotating mandrel, 35-lower joint (for connecting drill bit).
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. Where descriptive terms such as upper, lower, left, right, etc., are used for descriptive purposes to aid the reader's understanding and are not intended to be limiting.
As shown in fig. 1 to 3, a rotary steerable drilling control system structure comprises a surface control system (not shown), a surface control box (not shown), a bypass valve (not shown), an MWD system (not shown), a downhole master control board (not shown) with a decoding unit, and a master control board 25 capable of controlling the movement of a rib 5 in a steering tool (here, the "steering tool" is a static offset push type rotary steerable drilling tool with publication number CN 103939017A); wherein,
the ground control system comprises an upper computer;
the ground control system is electrically connected with the ground control box;
the bypass valve is arranged on a bypass branch pipe connected with the slurry pipeline, and a signal control end on the bypass valve is electrically connected with the ground control box; the mud pipeline is used for conveying drilling fluid and connecting the guiding tool with a mud pump arranged on the ground;
the system further comprises a downhole generator (not shown in the figure), a generator mounting section (not shown in the figure), a coupler 31, a near-bit attitude data acquisition component (not shown in the figure) and a power panel (not shown in the figure);
the underground generator is fixedly arranged in a generator mounting section which is cylindrical and has a hollow structure, and the end part of the generator mounting section is communicated and fixedly connected with the end part of the coupler 31 mounting section on the guiding tool;
the underground master control board is arranged at the coupler mounting section, is provided with a receiving end connected with the output end of the underground generator and is used for receiving the electric energy generated by the underground generator and decoding the instruction carried in the mud through a decoding unit; the underground master control board is also provided with a connecting end connected with a primary coil of the coupler 31 and a signal end connected with the MWD system signal;
the secondary coil of the coupler 31 is in signal connection with the main control board 25;
the near-bit attitude data acquisition component and the power panel are fixedly arranged in a circuit bin 22 on the guiding tool; the near-bit attitude data acquisition component comprises a triaxial accelerometer coaxially arranged with the circuit cabin 22 in the Z direction, and the triaxial accelerometer is in signal connection with the main control board 25; the power supply delivery end of the main control board 25 is connected with the storage battery 26 in the circuit bin 22 through a power supply board; the main control board 25 is connected with a control signal end of a hydraulic mechanism for controlling the operation of the wing rib 5.
In specific implementation, the main control board comprises a processing module, and a storage module, a power supply module and an interface module which are respectively connected with the processing module; the main control board is connected with the power board through the power module; the main control board is in signal connection with the near-bit attitude data acquisition assembly through the interface module.
In specific implementation, the downhole generator can adopt a notice number CN201078306Y in the prior art, namely a downhole mud turbine generator.
The coupler 31 can adopt the application number 201510371056.2 of the applicant, named as a downhole wireless bidirectional signal and power transmitter, or the publication number CN103180539B of the prior art, named as a downhole inductive coupler 31 assembly, and can simultaneously transmit power and signals.
The near-bit attitude data acquisition assembly further comprises a temperature sensor, and the temperature sensor is in signal connection with the main controller (not shown in the figure).
In the ground monitoring of the control system structure, besides data which are uploaded by an MWD system and are measured by a sensor of the control system, the attitude data of the near bit and alarm parameter information which are acquired by the attitude data acquisition assembly of the near bit are uploaded to the ground by virtue of an MWD channel, so that the drilling process is more accurately monitored, the data can be uploaded in a user-defined manner according to different requirements of actual engineering drilling, and the uploading efficiency of the MWD system is fully utilized.
The control system structure can upload the types of the near-bit attitude data as follows:
the system comprises a well inclination angle, a gravity tool face angle, a vibration value, battery power, pressure values of all ribs 5, temperature values of all ribs 5, bus voltage, environmental pressure, rotating speeds of all motors, motor current, FLASH capacity, time information (year, month, day, hour, minute, second and week), and fault alarm information (faults of a servo motor, faults of a positioning assembly, various communication faults, various sensor faults and the like).
The underground master control board is connected with the MWD system through an MWD adapter board.
In specific implementation, the MWD system comprises surface equipment and a downhole measurement instrument, wherein the downhole measurement instrument is mounted in a mounting sub fixedly connected to a static offset push-against rotary steerable drilling tool; the MWD adapter plate and the underground master control plate are both fixedly arranged on the coupler mounting section;
the underground master control board comprises a first processor, and a storage module, a first communication module, a power supply module and an interface module which are respectively connected with the first processor; the interface module is also in signal connection with a primary coil of the coupler;
the MWD adapter board comprises a second processor, a second communication module and a level shifter, wherein the second communication module and the level shifter are respectively connected with the second processor; the level shifter is also in signal connection with the underground measuring instrument; the first communication module is in communication connection with the second communication module. The level shifter may be a chip of the 74xHCT family. In specific implementation, the first communication module and the second communication module CAN both adopt a wireless communication module (such as bluetooth or infrared) or a wired communication module (CAN communication module).
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several changes and modifications can be made without departing from the technical solution, and the technical solution of the changes and modifications should be considered as falling within the protection scope of the present application.
Claims (3)
1. A rotary steering drilling control system structure comprises a ground control system, a ground control box, a bypass valve, an MWD system, an underground master control board with a decoding unit and a master control board capable of controlling the action of a wing rib in a steering tool; wherein,
the ground control system comprises an upper computer;
the ground control system is electrically connected with the ground control box;
the bypass valve is arranged on a bypass branch pipe connected with the slurry pipeline, and a signal control end on the bypass valve is electrically connected with the ground control box; the mud pipeline is used for conveying drilling fluid and connecting the guiding tool with a mud pump arranged on the ground;
the device is characterized by further comprising an underground generator, a generator mounting section, a coupler mounting section for mounting the coupler, a near-bit attitude data acquisition assembly and a power panel;
the underground generator is fixedly arranged in a generator mounting section which is cylindrical as a whole and has a hollow structure, and the end part of the generator mounting section is communicated and fixedly connected with the end part of a coupler mounting section on the guiding tool;
the underground master control board is arranged at the coupler mounting section, is provided with a receiving end connected with the output end of the underground generator and is used for receiving the electric energy generated by the underground generator and decoding the instruction carried in the mud through a decoding unit; the underground master control board is also provided with a connecting end connected with a primary coil of the coupler and a signal end connected with the MWD system signal;
the secondary coil of the coupler is in signal connection with the main control board;
the near-bit attitude data acquisition assembly and the power panel are fixedly arranged in a circuit bin on the guiding tool; the near-bit attitude data acquisition assembly comprises a triaxial accelerometer which is coaxially arranged with the circuit cabin in the Z direction, and the triaxial accelerometer is in signal connection with the main control board; the power supply conveying end of the main control board is connected with a storage battery in the circuit bin through a power supply board; the main control board is connected with a control signal end of a hydraulic mechanism for controlling the movement of the wing ribs.
2. The rotary steerable drilling control system architecture of claim 1, wherein the near bit attitude data acquisition component further comprises a temperature sensor in signal connection with the master controller.
3. The rotary steerable drilling control system architecture of claim 1, wherein the downhole master control board is connected to the MWD system via an MWD adapter board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520686632.8U CN204899774U (en) | 2015-09-07 | 2015-09-07 | Rotatory steerable drilling control system structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520686632.8U CN204899774U (en) | 2015-09-07 | 2015-09-07 | Rotatory steerable drilling control system structure |
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| CN204899774U true CN204899774U (en) | 2015-12-23 |
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| CN201520686632.8U Expired - Fee Related CN204899774U (en) | 2015-09-07 | 2015-09-07 | Rotatory steerable drilling control system structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041212A (en) * | 2015-09-07 | 2015-11-11 | 重庆前卫科技集团有限公司 | Rotary steering well drilling control system and control method thereof |
| CN107829726A (en) * | 2017-12-14 | 2018-03-23 | 杭州丰禾石油科技有限公司 | A kind of connector for logging while drilling |
| CN108227495A (en) * | 2018-01-05 | 2018-06-29 | 中国海洋石油集团有限公司 | A kind of slide-and-guide Drilling Control system and control method with adaptivity |
| CN108979561A (en) * | 2018-09-10 | 2018-12-11 | 中国石油大学(北京) | Induction heating type marine riser pipe nipple for deepwater drilling water Researches On Hydrate Prevention |
| CN109798101A (en) * | 2019-03-12 | 2019-05-24 | 敖江昵 | Drive Drilling Control auxiliary device in top |
| CN113846965A (en) * | 2020-06-09 | 2021-12-28 | 中国石油化工股份有限公司 | System for controlling downhole steering tool |
-
2015
- 2015-09-07 CN CN201520686632.8U patent/CN204899774U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041212A (en) * | 2015-09-07 | 2015-11-11 | 重庆前卫科技集团有限公司 | Rotary steering well drilling control system and control method thereof |
| CN107829726A (en) * | 2017-12-14 | 2018-03-23 | 杭州丰禾石油科技有限公司 | A kind of connector for logging while drilling |
| CN107829726B (en) * | 2017-12-14 | 2024-05-14 | 杭州丰禾石油科技有限公司 | Logging while drilling instrument |
| CN108227495A (en) * | 2018-01-05 | 2018-06-29 | 中国海洋石油集团有限公司 | A kind of slide-and-guide Drilling Control system and control method with adaptivity |
| CN108227495B (en) * | 2018-01-05 | 2020-11-24 | 中国海洋石油集团有限公司 | An adaptive sliding steerable drilling control system and control method |
| CN108979561A (en) * | 2018-09-10 | 2018-12-11 | 中国石油大学(北京) | Induction heating type marine riser pipe nipple for deepwater drilling water Researches On Hydrate Prevention |
| CN108979561B (en) * | 2018-09-10 | 2023-09-26 | 中国石油大学(北京) | Induction heating type marine riser nipple for preventing and controlling deepwater drilling hydrate |
| CN109798101A (en) * | 2019-03-12 | 2019-05-24 | 敖江昵 | Drive Drilling Control auxiliary device in top |
| CN109798101B (en) * | 2019-03-12 | 2024-04-09 | 北京鹏风科技有限公司 | Top drive drilling control auxiliary device |
| CN113846965A (en) * | 2020-06-09 | 2021-12-28 | 中国石油化工股份有限公司 | System for controlling downhole steering tool |
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