Substructure for drilling and workover equipment, mast remote hoist control system and method of use

Abstract

The application discloses a base for a drilling and repairing device, a remote lifting control system of a derrick and a use method thereof, and is provided with a base, a traction mechanism, a regulation and control mechanism, a sensor group and a remote control system. First and second hinge points are correspondingly arranged on the base and serve as rotary reference points for lifting limiting of the base and the derrick. The lifting speed of the derrick and the base is dynamically controlled by using a variable frequency lifting motor. The regulation and control mechanism is used for real-time adjustment and guarantee of whether the traction steel wire rope is located on the same alignment surface as the base and the derrick, so that the lifting safety of the derrick and the base is guaranteed. The position of the derrick and the base is monitored by using an inclination sensor. The remote control system is used for controlling the connection of the traction mechanism, the regulation and control mechanism and the sensor group, and the derrick and the base are remotely operated, so that the lifting operation precision of the base and the derrick is improved, and the labor intensity of personnel is reduced.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology for drilling and workover equipment. More specifically, this invention relates to a base for drilling and workover equipment, a remote hoisting control system for the derrick, and a method for using the same. Background Technology

[0002] Traditional remote lifting solutions for drilling and workover equipment bases and derricks fall into two categories: hydraulic lifting and electric lifting. Hydraulic lifting relies on hydraulic drive and manual operation of the pin-operated hydraulic cylinder locking device, which has drawbacks such as high risks associated with manual high-altitude operations, poor synchronization of multiple cylinders, and a tendency for tilting during lifting. Electric lifting suffers from disadvantages such as a lack of lifting status feedback and the risk of collapse due to excessive lifting angles. Both technologies exhibit low work efficiency and numerous safety hazards. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0004] Another objective of this invention is to provide a remote lifting control system for a base and derrick for drilling and repair equipment, and a method for using the same, in order to solve the technical problems of low working efficiency and numerous safety hazards of existing lifting bases and derricks.

[0005] To achieve these objectives and other advantages according to the present invention, in one aspect, the present invention provides a base for drilling and workover equipment and a remote hoisting control system for a derrick, comprising: The base is used to fix the base and the derrick. The middle of the base is connected to the A-frame. The base has a first hinge point and a second hinge point arranged outward from one side of the A-frame. The first hinge point is hinged to the bottom of the derrick. A reversing pulley is provided on the side of the derrick near the A-frame. The base is hinged to the second hinge point of the base through the column. Before lifting, the derrick is located on the side of the A-frame near the first hinge point, and the base is located on the side of the A-frame away from the first hinge point. The traction mechanism includes a pulley block set on the top of the A-frame, a variable frequency hoisting motor fixed on the base, and a traveling block fixed on the drilling rope. The rotation drive end of the hoisting motor is connected to a drum, on which the drilling rope is wound. The drilling rope passes through the pulley block, the overhead crane pulley block, and the traveling block before being fixed to the derrick. Two steel wire ropes are also fixed, one end of which is fixed to the base, and the other end passes through the pulley block and the reversing pulley before being fixed to the tooling below the traveling block. The control mechanism includes a centering cylinder installed on the top of the A-frame. The extension and retraction direction of the centering cylinder is perpendicular to the alignment surface. The pulley block is fixedly connected to the extension and retraction end of the centering cylinder by a bracket. The position of the pulley block is adjusted by the centering cylinder to ensure that the drilling rope is on the pulley block. The sensor assembly includes a base tilt sensor mounted on the column and a derrick tilt sensor mounted on the derrick, for monitoring tilt angle data; The remote control system is connected to the base tilt sensor, the derrick tilt sensor, the hoisting motor, and the centering cylinder, respectively, to acquire tilt data and remotely control the operation of the hoisting motor and the centering cylinder based on the tilt data.

[0006] Preferably, the remote control system includes a control box and an electrical control box. The electrical control box is electrically connected to the frequency converter of the hoisting motor. The control box is equipped with a PLC control system and a touch screen and an electro-hydraulic handle electrically connected to the PLC control system. The PLC control system is communicatively connected to the electrical control box. The electro-hydraulic handle controls the centering cylinder through the PLC control system. Parameters are set on the touch screen, and the hoisting motor is controlled by the PLC control system to drive the drum to pull the drilling rope. The drilling rope drives the traveling block to move to the top of the derrick. A fixture is fixed at the lower end of the traveling block, and the drilling rope is fixed on the fixture. The other end of the drilling rope is connected to the base through a drum. When the traveling block moves to the top, it pulls the drilling rope to achieve the purpose of hoisting the derrick and the base.

[0007] Preferably, the control mechanism further includes a first buffer cylinder and a second buffer cylinder. The first buffer cylinder is installed in the middle of the A-frame with its telescopic end facing the derrick side. The second buffer cylinder is installed at the bottom of the base facing the A-frame side. The first buffer cylinder and the second buffer cylinder are respectively connected to the PLC control system, and an electro-hydraulic handle is provided for each of the first buffer cylinder and the second buffer cylinder.

[0008] Preferably, the control mechanism further includes a pin-threading cylinder installed in the middle of the A-frame. The extension and retraction direction of the pin-threading cylinder is perpendicular to the alignment surface. It is used to connect and fix the derrick, which has been lifted and rotated into position, and the pin hole aligned in the base. The pin-threading cylinder is communicatively connected to the PLC control system, and an electro-hydraulic handle is provided corresponding to the pin-threading cylinder.

[0009] On the other hand, the present invention also provides a method for using a base for drilling and repair equipment and a remote hoisting control system for a derrick, comprising the following steps: S1. Install the PLC control system, the touch screen, and the electro-hydraulic handle in the control box. The control box is connected to the frequency converter of the hoisting motor through a communication cable. The control box is connected to the control mechanism and the sensor group through a control cable. The control box is powered on. S2. Set parameters on the touch screen, and start the hoisting motor by controlling the frequency converter through the PLC control system. The hoisting motor drives the drum to rotate, which drives the drilling rope to lift the base and derrick. During the hoisting process, the centering cylinder is controlled by the PLC control system to ensure that the drilling rope is in the correct position and to prevent the drilling rope from deviating from the alignment surface. S3. Observe the real-time tilt angle data transmitted by the tilt angle sensor on the touch screen. During the base and derrick lifting operation, monitor the front and rear tilt angles of the corresponding base or derrick. When the derrick is lifted to a near-vertical position, reduce the lifting speed. Use the PLC control system to operate the electro-hydraulic handles corresponding to the first and second buffer cylinders to make fine-tuning of the angle. S4. After the base and derrick are raised to the correct position, the PLC control system operates the electro-hydraulic handle corresponding to the pin-piercing cylinder to insert the pin shaft into the corresponding pin hole using hydraulic drive, thereby fixing the base and derrick.

[0010] The present invention has at least the following beneficial effects: The drilling and repair equipment base and derrick remote lifting control system and its usage method of the present invention are provided with a base, a traction mechanism, a control mechanism, a sensor group, and a remote control system. The bottom of the derrick is connected to the base, and the base is connected to the base through a column. The base serves as the rotation reference point for the lifting limit of the base and derrick installation. The lifting speed of the derrick and base is dynamically controlled by a variable frequency lifting motor. The control mechanism adjusts and ensures in real time that the drilling rope is on the pulley to ensure the force safety of the derrick and base during lifting. The position of the derrick and base is monitored by an inclination sensor. The traction mechanism, control mechanism, and sensor group are controlled by the remote control system to remotely operate the lifting of the derrick and base, thereby improving the lifting accuracy of the base and derrick and reducing the labor intensity of personnel.

[0011] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0012] Figure 1 This is a system architecture diagram of the base and derrick remote lifting control system for drilling and repair equipment of the present invention; Figure 2 This is an operation flowchart of the remote lifting control system for the drilling and repair equipment base and derrick of the present invention. Figure 3 This is a schematic diagram of the structure of the present invention before the lifting derrick and base; Figure 4 This is a schematic diagram of the structure of the present invention during the lifting of the derrick; Figure 5 This is a schematic diagram of the structure of the present invention when the base is lifted; Figure 6 This is a schematic diagram of the structure of the traveling carriage during lifting according to the present invention; Instruction manual diagram reference numerals: 1. Control box, 2. Remote monitoring and control system, 3. PLC control system, 4. Touch screen, 5. Electro-hydraulic handle, 6. Buffer cylinder, 7. Centering cylinder, 8. Pin cylinder, 9. Tilt sensor, 10. Electrical control box, 11. Base, 12. A-frame, 13. Base, 14. Derrick, 15. First hinge point, 16. Second hinge point, 17. Reversing pulley, 18. Pulley block, 19. Drilling rope, 20. Column, 21. Traveling trolley, 22. Wire rope, 23. Drum, 61. First buffer cylinder, 62. Second buffer cylinder, 91. Base tilt sensor, 92. Derrick tilt sensor. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0014] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0015] First, combined Figure 1-6 As shown, the present invention provides a base for drilling and workover equipment and a remote hoisting control system for the derrick, comprising: The base 11 is used to fix the base 13 and the derrick 14. The middle part of the base 11 is connected to the A-frame 12. The base has a first hinge point 15 and a second hinge point 16 arranged outward from one side of the A-frame. The first hinge point is hinged to the bottom of the derrick. A reversing pulley 17 is arranged on the side of the derrick near the A-frame. The base is hinged to the second hinge point of the base through the column 20. Before lifting, the derrick is located on the side of the A-frame near the first hinge point and the base is located on the side of the A-frame away from the first hinge point. The traction mechanism includes a pulley block 18 set on the top of the A-frame, a variable frequency hoisting motor fixed on the base, and a traveling block fixed on the drilling rope. The rotation drive end of the hoisting motor is connected to a drum 23, and the drilling rope 19 is wound on the drum. The drilling rope is fixed to the derrick after passing through the pulley block, the overhead crane pulley block, and the traveling block 21. Two steel wire ropes 22 are also fixed, one end of which is fixed to the base, and the other end is fixed to the tooling below the traveling block after passing through the pulley block and the reversing pulley. The control mechanism includes a centering cylinder 7 installed on the top of the A-frame 12. The extension and retraction direction of the centering cylinder 7 is perpendicular to the alignment surface. The pulley block 18 is fixedly connected to the extension and retraction end of the centering cylinder 7 by a bracket. The position of the pulley block 18 is adjusted by the centering cylinder 7 to ensure that the drilling rope is on the pulley block 18. The sensor assembly includes a base tilt sensor mounted on the column and a derrick tilt sensor mounted on the derrick, for monitoring tilt angle data; The remote control system is connected to the base tilt sensor, the derrick tilt sensor, the hoisting motor, and the centering cylinder, respectively, to acquire tilt data and remotely control the operation of the hoisting motor and the centering cylinder based on the tilt data.

[0016] The base 11 is fixed on the ground, and the A-frame 12 is fixed in the middle. The A-frame 12 is connected to the base 11 and the derrick 14. The centering cylinder 7 is installed on the top of the A-frame 12, and the pulley block 18 is installed on the centering cylinder 7. The position of the pulley block can be adjusted by extending and retracting the centering cylinder 7 to ensure that the drilling rope passes around the center line of the pulley block.

[0017] The fixed point between the derrick 14 and the bases 11 and 12 is the rotation point. During the lifting process, the derrick 14 rotates upward around the first hinge point. The second hinge point between the column 20 and the base 11 is the rotation point when lifting the base. During the lifting process, the base rotates around this fixed point.

[0018] First, the derrick 14 is raised. The hoisting motor drives the drum to rotate, and the drilling cable 19 is wound up. The hoisting cable pulls the traveling block to the top of the derrick. At this time, the traveling block drives the lower tooling to pull the drilling cable 19. Under the reaction force, the derrick 14 is raised until it is vertical and just close to the A-frame 12. Before it reaches verticality, the hoisting speed of the derrick 14 is slowed down for fine adjustments to prevent the derrick 14 from tipping over due to excessive inertia. At the same time, the A-frame 12 also serves as a limiting and buffering protective structure for the derrick 14. After the derrick 14 is in place, the well is fixed. Continue to retract the drilling cable 19 and lift the base 13 until the column 20 is completely vertical. Connect the installation rods at other positions on the base, adjust the position of the base 13, and then connect the base 13 to the derrick 14 to completely fix the positions of the base 13 and the derrick 14. During the lifting of the derrick 14 and the base 13, the rotation angle of the derrick 14 and the base 13 is determined by real-time data obtained from the tilt sensor 9, and the retraction speed of the drilling cable 19 and the final installation position before fixing are adjusted accordingly.

[0019] The remote lifting control system for the drilling and repair equipment base 13 and derrick 14 of the present invention includes a base 11, a traction mechanism, a control mechanism, a sensor group, and a remote control system. The base 11 is directly connected to the derrick 14 and 12, and is connected to the base 13 via a column 20, which serves as the rotation reference point for the lifting limit of the base 13 and derrick 14. The lifting speed of the derrick 14 and base 13 is dynamically controlled by a variable frequency lifting motor. The control mechanism adjusts in real time to ensure that the traction wire rope is aligned with the base 13 and derrick 14 on the same plane, preventing the wire rope from deviating and ensuring the safety of the lifting force of the derrick 14 and base 13. The position of the derrick 14 and base 13 is monitored by an inclination sensor 9. The remote control system controls the traction mechanism, control mechanism, and sensor group to remotely operate the lifting of the derrick 14 and base 13, improving the lifting accuracy of the base 13 and derrick 14 and reducing the labor intensity of personnel.

[0020] In another technical solution, such as Figure 1-6As shown, the remote control system includes a control box 1 and an electrical control box 10. The electrical control box 10 is electrically connected to the frequency converter of the hoisting motor. The control box 1 is equipped with a PLC control system 3 and a touch screen 4 and an electro-hydraulic handle 5, which are electrically connected to the PLC control system 3. The PLC control system 3 is communicatively connected to the electrical control box 10. The electro-hydraulic handle 5 controls the centering cylinder 7 through the PLC control system 3. Parameters are set on the touch screen 4, and the hoisting motor is controlled by the PLC control system 3 to wind up the drilling rope 19 to hoist the derrick 14 and / or the base 13. The electro-hydraulic handle 5 is a cylinder control handle, allowing operators to control the hoisting of the base 13 and the derrick 14 from a safe position more than 40 meters away, avoiding personnel exposure to dangerous environments. The use of electro-hydraulic control and PLC automation control reduces manual intervention, improves hoisting efficiency, and reduces the labor intensity of personnel.

[0021] In another technical solution, such as Figure 1-6 As shown, the control mechanism also includes a first buffer cylinder 61 and a second buffer cylinder 62. The first buffer cylinder 61 is installed in the middle of the A-frame 12 with its telescopic end facing the derrick 14. The second buffer cylinder 62 is installed at the bottom of the base 13 facing the A-frame 12. The first buffer cylinder 61 and the second buffer cylinder 62 are respectively connected to the PLC control system 3, and an electro-hydraulic handle 5 is provided corresponding to the first buffer cylinder 61 and the second buffer cylinder 62.

[0022] When the hoisting motor lifts the derrick 14 and the base 13, it uses nine tilt sensors to detect the current angle. When the derrick 14 and the base 13 are close to the vertical position, it uses the electro-hydraulic handle 5 on the control box 1 to control the first buffer cylinder 61 or the second buffer cylinder 62 to make the final angle fine adjustment.

[0023] In another technical solution, such as Figure 1-6 As shown, the control mechanism also includes a pin-operated hydraulic cylinder 8 installed in the middle of the A-frame 12. The extension and retraction direction of the pin-operated hydraulic cylinder 8 is perpendicular to the ground. It is used to connect and fix the derrick 14, which has been lifted and rotated into position, to the pin holes aligned with the base 13. The pin-operated hydraulic cylinder 8 is connected to the PLC control system 3, and a corresponding electro-hydraulic handle 5 is provided for the pin-operated hydraulic cylinder 8. After the derrick is lifted into position, the corresponding electro-hydraulic handle 5 is used to control the pin-operated hydraulic cylinder 8 to fix the derrick 14.

[0024] On the other hand, the present invention also provides a method for using the remote hoisting control system for the base 13 and derrick 14 of drilling and repair equipment, comprising the following steps: S1. Install the PLC control system 3, the touch screen 4, and the electro-hydraulic handle 5 in the control box 1. The control box 1 is connected to the frequency converter of the hoisting motor through a communication cable. The control box 1 is connected to the oil regulating mechanism and the sensor group through a control cable. The electrical control box 10 is powered on.

[0025] S2. Set parameters on the touch screen 4, and start the hoisting motor by controlling the frequency converter through the PLC control system 3. The hoisting motor drives the drum to rotate, which drives the drilling rope 19 to lift the base 13 and the derrick 14. During the hoisting process, the centering cylinder 7 is controlled by the PLC control system 3 to ensure that the drilling rope 19 is in the correct position and to prevent the drilling rope 19 from deviating from the pulley block 18.

[0026] S3. Observe the real-time tilt angle data transmitted by the tilt sensor 9 on the touch screen 4. During the lifting operation of the base 13 and the derrick 14, monitor the front and rear tilt angles of the corresponding base 13 or derrick 14. When the derrick 14 is lifted to a near-vertical position, reduce the lifting speed. The PLC control system 3 operates the electro-hydraulic handle 5 corresponding to the first buffer cylinder 61 and the second buffer cylinder 62 to make fine-tuning of the angle. Critical angles and corresponding audible and visual alarms can be set. When the derrick 14 is lifted to a near-vertical position, the audible and visual alarm prompts the operator to reduce the lifting speed.

[0027] After the base 13 and derrick 14 are raised to their positions, the PLC control system 3 operates the electro-hydraulic handle 5 corresponding to the pin-piercing cylinder 8 to use hydraulic drive to insert the pin shaft into the corresponding pin hole, thereby fixing the base 13 and derrick 14.

[0028] The first and second buffer cylinders 62, the centering cylinder 7, the pin-piercing cylinder 8, the base 13, and the derrick tilt sensor 92 constitute a remote monitoring and control system 2. The remote lifting control system for the base 13 and derrick 14 of the drilling and repair equipment is used to lift the base 13 and derrick 14. This allows operators to control the lifting of the base 13 and derrick 14 from a safe position more than 40 meters away, avoiding personnel exposure to dangerous environments. Buffer cylinders 6 are provided facing the base 13 and derrick 14 respectively to prevent the derrick 14 from tipping over due to inertia and enhance stability. The lifting method adopts electro-hydraulic control and PLC automatic control, reducing manual intervention, improving lifting efficiency, and reducing the labor intensity of personnel.

[0029] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A remote lifting control system for a base and derrick of drilling and repair equipment, characterized in that, include: The base is used to fix the base and the derrick. The middle of the base is connected to the A-frame. The base has a first hinge point and a second hinge point arranged outward from one side of the A-frame. The first hinge point is hinged to the bottom of the derrick. A reversing pulley is provided on the side of the derrick near the A-frame. The base is hinged to the second hinge point of the base through the column. Before lifting, the derrick is located on the side of the A-frame near the first hinge point, and the base is located on the side of the A-frame away from the first hinge point. The traction mechanism includes a pulley block set on the top of the A-frame, a variable frequency hoisting motor fixed on the base, and a traveling block fixed on the drilling rope. The rotation drive end of the hoisting motor is connected to a drum, on which the drilling rope is wound. The drilling rope passes through the pulley block, the overhead crane pulley block, and the traveling block before being fixed to the derrick. Two steel wire ropes are also fixed, one end of which is fixed to the base, and the other end passes through the pulley block and the reversing pulley before being fixed to the tooling below the traveling block. The control mechanism includes a centering cylinder installed on the top of the A-frame. The extension and retraction direction of the centering cylinder is perpendicular to the alignment surface. The pulley block is fixedly connected to the extension and retraction end of the centering cylinder by a bracket. The position of the pulley block is adjusted by the centering cylinder to ensure that the drilling rope is on the pulley block. The sensor assembly includes a base tilt sensor mounted on the column and a derrick tilt sensor mounted on the derrick, for monitoring tilt data; The remote control system is connected to the base tilt sensor, the derrick tilt sensor, the hoisting motor, and the centering cylinder, respectively, to acquire tilt data and remotely control the operation of the hoisting motor and the centering cylinder based on the tilt data.

2. The drilling and repair equipment base and derrick remote lifting control system as described in claim 1, characterized in that, The remote control system includes a control box and an electrical control box. The electrical control box is electrically connected to the frequency converter of the hoisting motor. The control box is equipped with a PLC control system and a touch screen and an electro-hydraulic handle electrically connected to the PLC control system. The PLC control system is communicatively connected to the electrical control box. The electro-hydraulic handle controls the centering cylinder through the PLC control system. Parameters are set on the touch screen, and the hoisting motor is controlled by the PLC control system to drive the drum to pull the drilling rope. The drilling rope drives the traveling block to move to the top of the derrick. A fixture is fixed at the lower end of the traveling block, and the drilling rope is fixed on the fixture. The other end of the drilling rope is connected to the base through a drum. When the traveling block moves to the top, it pulls the drilling rope to achieve the purpose of hoisting the derrick and the base.

3. The drilling and repair equipment base and derrick remote lifting control system as described in claim 2, characterized in that, The control mechanism further includes a first buffer cylinder and a second buffer cylinder. The first buffer cylinder is installed in the middle of the A-frame with its telescopic end facing the derrick. The second buffer cylinder is installed at the bottom of the base facing the A-frame. The first and second buffer cylinders are respectively connected to the PLC control system, and an electro-hydraulic handle is provided for each of the first and second buffer cylinders.

4. The drilling and repair equipment base and derrick remote lifting control system as described in claim 3, characterized in that, The control mechanism also includes a pin-threading cylinder installed in the middle of the A-frame. The extension and retraction direction of the pin-threading cylinder is perpendicular to the alignment surface. It is used to connect and fix the derrick, which has been lifted and rotated into place, and the pin hole aligned in the base. The pin-threading cylinder is communicatively connected to the PLC control system and a corresponding electro-hydraulic handle is provided for the pin-threading cylinder.

5. The method of using the drilling and repair equipment base and derrick remote lifting control system as described in claim 4, characterized in that, Includes the following steps: S1. Install the PLC control system, the touch screen, and the electro-hydraulic handle in the control box. The control box is connected to the frequency converter of the hoisting motor through a communication cable. The control box is connected to the control mechanism and the sensor group through a control cable. The control box is powered on. S2. Set parameters on the touch screen, and start the hoisting motor by controlling the frequency converter through the PLC control system. The hoisting motor drives the drum to rotate, which drives the drilling rope to lift the base and derrick. During the hoisting process, the centering cylinder is controlled by the PLC control system to ensure that the drilling rope is in the correct position and to prevent the drilling rope from deviating from the alignment surface. S3. Observe the real-time tilt angle data transmitted by the tilt angle sensor on the touch screen. During the base and derrick lifting operation, monitor the front and rear tilt angles of the corresponding base or derrick. When the derrick is lifted to a near-vertical position, reduce the lifting speed. Use the PLC control system to operate the electro-hydraulic handles corresponding to the first and second buffer cylinders to make fine-tuning of the angle. S4. After the base and derrick are raised to the correct position, the PLC control system operates the electro-hydraulic handle corresponding to the pin-piercing cylinder to insert the pin shaft into the corresponding pin hole using hydraulic drive, thereby fixing the base and derrick.

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