CN111911097A - Automatic operation system and operation method for oilfield major workover operation - Google Patents
Automatic operation system and operation method for oilfield major workover operation Download PDFInfo
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- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The invention discloses an automatic operation system and an automatic operation method for the large workover operation of an oil field, wherein the system comprises a main drill floor, an auxiliary drill floor and a derrick which are positioned around a well head, wherein a pipe receiving and sending manipulator and an iron roughneck are arranged on the main drill floor and positioned near the well head, and a pneumatic slip is arranged at the position of the well head; an electric racking platform intelligent pipe arrangement system and a traveling block capable of moving up and down along the derrick direction are installed above the derrick, a hydraulic elevator is connected to the lower portion of the traveling block through a hanging ring, and a racking platform manipulator and a finger beam lock are arranged on the electric racking platform intelligent pipe arrangement system; a pipe erecting box and a pipe arranging robot are arranged below the electric racking platform intelligent pipe arranging system on the auxiliary drill floor, and drillers are arranged on the main drill floor and the auxiliary drill floor. The system and the method disclosed by the invention can realize automatic operation, reduce the labor intensity, improve the construction efficiency and the construction safety and reduce the operation cost.
Description
Technical Field
The invention relates to an oil field well workover operation system, in particular to an oil field major workover operation automatic operation system and an operation method.
Background
Workover operations are an important link in oilfield development. In the production process of the oil-gas well, oil well self faults such as sand production of an oil layer or blockage of a near-wellbore area, scaling of a shaft, reduction of permeability of the oil layer, exhaustion of a part of produced oil layers, damage of a sleeve and the like often occur, and underground oil production equipment faults such as leakage or falling of a thread of a production pipe column, breakage or tripping of a sucker rod, abnormal work of an oil well pump and the like may also occur, so that the production of the oil well is reduced and even the production is stopped. These above faults are only eliminated by workover operations.
Workover operations generally include major repair operations and minor repair operations, wherein the major repair operations are characterized in that: the engineering difficulty is high, the technical requirement is high, and the work can be carried out only by using large-scale well repairing equipment and being equipped with special equipment tools such as a major repair drill rod, a major repair rotary table and the like. The pipe string pulling-out operation is the operation mode with the highest working frequency in the well repairing construction site, the process is monotonous and has no technical content, repeated actions are frequent, the labor intensity of workers is high, and the method is the link which needs to realize operation mechanization most.
Major problems currently exist in major workover operations:
(1) the labor intensity is high, and the construction efficiency of workover treatment is low.
(2) The operation staff works at a close distance from the well mouth, and potential safety hazards exist in the construction process.
(3) Uncontrollable factors exist in the manual operation process.
(4) The cost of workover tripping is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic operation system and an operation method for the large workover operation of an oil field, so as to achieve the purposes of automatic operation, labor intensity reduction, construction efficiency and safety improvement and operation cost reduction.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an automatic operation system for the large workover operation of an oil field comprises a main drill floor, an auxiliary drill floor and a derrick which are positioned around a well head, wherein a pipe receiving and sending manipulator for receiving, sending and righting a pipe column and an iron driller for realizing the screwing-in and unscrewing of the pipe column in the operation process are arranged near the well head on the main drill floor, and a pneumatic slip for clamping the pipe column is arranged at the position of the well head; an electric racking platform intelligent pipe arrangement system and a traveling block capable of moving up and down along the derrick direction are installed above the derrick, a hydraulic elevator is connected to the lower portion of the traveling block through a hanging ring, and a racking platform manipulator and a finger lock for positioning a pipe column are arranged on the electric racking platform intelligent pipe arrangement system; the pipe arranging machine is characterized in that a stand box used for containing a pipe column and a pipe arranging robot used for placing the pipe column are arranged below the electric racking platform intelligent pipe arranging system on the auxiliary drill floor, and drillers used for integrated control are arranged on the main drill floor and the auxiliary drill floor.
In the above scheme, the derrick comprises an upper section and a lower section which can stretch up and down, and the electric racking platform intelligent pipe arranging system is fixed on the upper section of derrick.
The automatic operation method for the oilfield major workover operation comprises the steps of conveying a single pipe column from a catwalk machine to a well, taking the single pipe column from a well to convey the single pipe column to the catwalk machine, taking two pipe columns from a stand box to drill the well, and taking the two pipe columns from the well to place in the stand box.
In the above scheme, the single tubular column conveying process from the catwalk machine is as follows:
after the catwalk machine picks up the pipe to the lifting arm, the lifting arm moves upwards to convey the pipe column to the surface of a drill floor, the hydraulic elevator starts to lift after clamping one end of the pipe column, meanwhile, the pipe receiving and conveying manipulator clamps the other end of the pipe column, the pipe column is conveyed to the position above a well mouth and is centered, then an iron roughneck starts to buckle, the pipe column and the inner pipe column in the well are buckled, and the catwalk machine finishes the downward reset action; and after the tripping of the iron roughneck is finished, the pneumatic slips are opened, and after the hydraulic elevator descends to a specified position, the pneumatic slips are closed to clamp the tubular column which is lowered into the well, so that the single action process is completed.
In the above scheme, the process of taking a single tubular column from a drilling well and conveying the single tubular column to the catwalk machine is as follows:
the hydraulic elevator descends, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, a pipe receiving and conveying manipulator grasps the bottom of the pipe column, after the iron roughneck finishes breaking out, the hydraulic elevator ascends, the pipe receiving and conveying manipulator conveys the pipe column to a lifting arm of a catwalk machine, the pipe column is loosened by the hydraulic elevator, and the catwalk machine conveys the pipe column to the ground.
In the above scheme, the process of taking two tubular columns from the stand box and drilling the well is as follows:
after ensuring that relevant finger lock is opened, snatch the tubular column top and send to in the hydraulic elevator by the platform manipulator of second floor, the closed back platform manipulator of hydraulic elevator resets, the bottom of this tubular column is grabbed from the back box to the pendulum pipe robot simultaneously, the hydraulic elevator short distance promotes, make the tubular column leave the back box of standing, pendulum pipe robot sends the tubular column to the well head afterwards, accomplish the operation of detaining of going up by the iron roughneck after the centering, carry out the knot with this tubular column and interior tubular column of well, after the knot that goes up, the iron roughneck resets, pneumatic slips is opened, after the hydraulic elevator descends to the assigned position, pneumatic slips is closed and is carried the tubular column of having gone into the well, accomplish and get the tubular column and go into the well drilling work flow.
In the above scheme, the process of taking two tubular columns from the well drilling and placing the tubular columns in the vertical box is as follows:
the hydraulic elevator descends, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, the pipe arranging robot grabs the bottom of the pipe column, the pipe column is placed in the stand box, the hydraulic elevator descends, the two-layer platform manipulator grabs the top of the pipe column, the fingerboard lock is opened, the hydraulic elevator is opened, the two-layer platform manipulator places the pipe column, and the process of taking two pipe columns from the drilling well and placing the two pipe columns in the stand box is completed.
By the technical scheme, the automatic operation system and the operation method for the oilfield workover treatment provided by the invention adopt a mechanical, electrical and hydraulic integrated design, so that an operator can complete a series of tubular column processing operations such as tripping, make-up and break-out and the like in a driller room through an integrated control system; the system can also monitor the state of the automation equipment in real time and judge potential faults, thereby enhancing the operation safety, fully exerting the decision and control ability of workers at the rear, realizing the interaction between people and equipment in a remote control mode, leading people to be in a higher leading role in the oil field well repairing operation construction, and achieving the integrated harmonious operation with the technology.
The invention has the following beneficial effects:
(1) greatly saving time and labor, reducing labor intensity and improving the construction efficiency of workover treatment.
(2) The operation staff keeps away from the well head operation, has eliminated the potential safety hazard of operation staff in the well head work progress, has improved the operation safety in the work progress.
(3) The danger and the uncontrollable factors existing in the manual operation process are reduced.
(4) The intelligent system equipment can effectively reduce the cost of workover and tripping operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic view of an automated operation system for major workover operations in an oil field according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view of part A of FIG. 1;
fig. 3 is an enlarged view of part B of fig. 1.
In the figure, 1, a main drilling platform; 2. a sub-drill floor; 3. a derrick; 4. a wellhead; 5. a pipe receiving and sending manipulator; 6. a pneumatic slip; 7. An electric racking platform intelligent pipe arranging system; 8. traveling vehicles; 9. a hoisting ring; 10. hydraulic elevator; 11. setting up a root box; 12. a pipe swinging robot; 13. a driller room; 14. an iron roughneck; 15. a pipe string; 16. a well repairing vehicle.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides an automatic operation system for large workover operations in oil fields, which has a structure shown in figure 1, has high automation degree, replaces manpower to carry out pipe column processing work such as pipe connection, pipe delivery, pipe discharge, pipe taking and the like of pipe columns, and is suitable for construction operations such as taking off and setting off stand pipes of oil pipes and drill rods.
Automatic operation system for large workover operation of oil field
The pipe string handling device comprises a main drill floor 1, an auxiliary drill floor 2 and a derrick 3 which are positioned around a well head, wherein a pipe handling manipulator 5 for handling and righting a pipe string 15 and an iron roughneck 14 for realizing the make-up and break-out of the pipe string in the operation process are arranged near the well head 4 on the main drill floor 1, and a pneumatic slip 6 for clamping the pipe string is arranged at the position of the well head 4; an electric racking platform intelligent pipe arranging system 7 and a traveling block 8 which can move up and down along the direction of the derrick 3 are arranged above the derrick 3, as shown in fig. 2, the lower part of the traveling block 8 is connected with a hydraulic elevator 10 through a lifting ring 9, and a racking platform manipulator and a fingerboard lock for positioning a pipe column are arranged on the electric racking platform intelligent pipe arranging system 7; a stand box 11 for containing a pipe column and a pipe placing robot 12 for placing the pipe column are arranged below the electric racking platform intelligent pipe arranging system 7 on the auxiliary drill floor 2, and a driller room 13 for integrated control is arranged on the main drill floor 1 and the auxiliary drill floor 2.
In addition, the system also comprises a workover rig 16 which is arranged integrally with the derrick 3 and can be used for transporting the derrick 3; the main drill floor 1 and the auxiliary drill floor 2 are separately arranged and are respectively transported, and a hydraulic station (blocked in the drawing) is arranged below the auxiliary drill floor 2 and provides a hydraulic power source for the system. The system is also provided with a video monitoring system in the driller room 13, and provides real-time pictures of equipment operation for the driller room operators, so that the equipment operation process is visual, clear and visible, and the operation safety is enhanced.
As shown in fig. 3, the pipe receiving and feeding manipulator 5, the pipe swinging robot 12 and the iron roughneck 14 mainly achieve buffering during conveying of the pipe column 15 to the drill floor from the ground, automatic movement and discharge of the pipe column 15 on the drill floor, centralization and automatic screwing-out of a stand, and have functions of strong punching, efficient screwing-out and the like. The pneumatic slips 6 and the hydraulic elevator 10 mainly assist the electric racking platform intelligent pipe arrangement system 7 to realize the functions of automatic receiving, sending and discharging of racking platform pipe columns, automatic clamping and positioning of the pipe columns, automatic combination and separation of the pipe columns 15 and the hydraulic elevator 10 and the like. And the driller room integrated control system controls the equipment to be matched with each other, so that the whole automatic device for the major workover operation can run stably.
In the invention, the derrick 3 comprises an upper section and a lower section which can stretch up and down, the electric racking platform intelligent pipe arranging system is fixed on the upper section of the derrick, when transportation is needed, the upper section of the derrick descends, and the electric racking platform intelligent pipe arranging system 7 descends together, so that the volume can be reduced, and the transportation is convenient.
The functions of the various parts of the present invention will now be described:
1. driller room
The integrated control system of the driller room is a real-time operation center of the workover operation automation device, the operation and control of all equipment are realized by operators by utilizing the integrated control system of the driller room, and the real-time state and later information maintenance of all the equipment are uniformly managed in the integrated control system of the driller room. The integrated control system of the driller room provides comfortable working environment, simple and direct operation position and convenient observation visual field for drillers, releases the driller from nervous, heavy and simple physical labor, and enables the driller to be more concentrated in the drilling process, thereby effectively ensuring safety and improving production efficiency.
The control system can be switched between local mode and remote control mode, the local mode is that an operator utilizes the operating lever and the operating element of the control console of the driller room to control, and when the control system is switched to the remote control mode, the operator on the field or the surface of the driller room carries out outdoor remote controller operation.
The electric control system in the driller room comprises an electric control cabinet, a touch screen, an operating handle, a connecting cable and the like. Its main functions are: the automatic control device completes the logic control function, the protection function, the drilling related parameter detection display function and other auxiliary functions of the workover operation automation device.
The electric control system in the driller room comprises an electric control cabinet, a touch screen, an operating handle, a connecting cable and the like. Its main functions are: the automatic control device completes the logic control function, the protection function, the drilling related parameter detection display function and other auxiliary functions of the workover operation automation device.
The integrated control system of the driller room takes an industrial central controller as a core, and forms key equipment such as a catwalk machine, a pipe placing robot, an iron roughneck, a two-layer table pipe column discharge system and the like into a Profibus-DP network through a field bus control technology, so that the two-way transmission of data among the equipment is realized, and an HMI monitors the running state of each system in real time and provides fault diagnosis information of the system.
The driller room integrated control system displays the running state of each key device through a display picture and provides various fault diagnosis and alarm information. A digital and informatization management platform is created for the drilling process, and finally fault monitoring of each key device of the system is realized, and the whole drilling process is optimally controlled and monitored.
The driller room adopts a driller room redundancy control system with the patent number '2019111616503' previously applied by the company, and details are not described herein.
2. Pipe receiving and sending manipulator
Connect and send a tub manipulator to the workover in-process tubular column through the trip big hook or pneumatic (hydraulic) the jigger promotes, the tubular column lower extreme leaves rig ramp or tubular column conveyor (power catwalk) in the twinkling of an eye, the tubular column lower extreme needs the manual work to accomplish this technology research, the professional equipment of design when removing to the well head direction, the device accessible wireless remote control or remote control platform operation replace the manual work to accomplish above-mentioned operation, reduce worker intensity of labour, reduce the danger coefficient. This meet and send a pipe manipulator can catch the tubular column before the tubular column breaks away from the ramp mouth to slowly send the position of well head to the tubular column, the clamping jaw sets up supplementary clamping mechanism and can effectively centre gripping tubular column and realize accurate butt joint function. The operation mode is remote controller operation, and possesses PROFIBUS-DP interface, conveniently is connected with driller's house integrated control system, and can join in marriage video monitor system, can realize that the pipe receiving and dispatching manipulator carries out control operation in the driver's control room. The system control unit can automatically learn and mark the positions of the wellhead and the cat crossing, and the motion process after grabbing can be operated by one key.
In this embodiment, the pipe receiving and sending manipulator adopts a wellhead pipe receiving and sending device with the patent number "2019111045579" previously applied by the company, and the specific structure is not described herein.
3. Swing pipe robot
In the process of lifting and lowering the stand column in the current oil field well repairing operation, the stand column is placed to the setback box from a well mouth, and the process of transferring the stand column to the well mouth from the setback box is realized by 1-2 manual placing. In order to lighten the labor intensity of workers, enhance the operation safety and improve the HSE supervision system, the pipe swinging robot is installed on the surface of a drill floor and used for solving the problem that a pipe column is placed in a reciprocating mode between a well head and a stand box in the process of lifting and lowering the stand column, a mechanical hand is used for replacing manual movement to place the pipe column, the labor intensity of workers is reduced, and the danger coefficient is reduced. The operation mode is remote controller operation, and possesses PROFIBUS-DP interface, conveniently is connected with driller's house integrated control system, and can join in marriage video monitor system, can realize that the swing pipe robot carries out control operation in the control room of the driller. The system control unit can automatically learn and mark the positions of the wellhead and the seton box, and the wellhead and the seton box are positioned by one key in the motion process after grabbing.
The pipe swinging robot in this embodiment adopts a foldable pipe swinging robot for a drill floor surface, which is previously applied by the company and has a patent number of "2019110858967", and the specific structure is not described herein.
4. Iron roughneck
The iron roughneck adopts the modularized design, has compact structure and full hydraulic drive, needs to be fixed on a working surface before use, and the telescopic arm structure and the rotating mechanism enable the iron roughneck to freely switch the working mechanism between a standby/parking (telescopic) position and a well mouth, a rat hole and a standby position (rotation). The working mechanism is movable in a vertical direction along the guide rail to adapt to the height of the pipe string joint in the working position. The limit switch box is internally provided with telescopic limit switches which respectively correspond to a wellhead, a rat hole and a retraction standby mode, and the iron roughneck working mechanism can be ensured to be accurately positioned in a standby mode and a working mode in a telescopic mode. Two limit switches arranged on a flange of the guide rail assembly respectively correspond to a well mouth and a rat hole station, so that the working mechanism of the iron roughneck can be accurately positioned in a rotating way when the stations are switched.
An iron roughneck uses a set of V-shaped clamp, and can carry out make-up and break-out operations on tubular columns with different specifications and sizes. When the spinner works, the axial displacement of the pipe column joint can be automatically centered and compensated. The hydraulic tong assembly comprises a main tong and a back-up tong, wherein the main tong and the back-up tong are respectively provided with a set of clamping mechanism, and the main tong can rotate a certain angle relative to the back-up tong, so that the fastening or the unfastening of the pipe column joint threads is completed.
The iron roughneck generally uses a remote control console or a remote controller to operate when working. The hydraulic control box and the control panel assembly are installed on a frame of an iron roughneck, and the hydraulic control box can be opened for manual control when torque and clamping pressure are set or equipment is installed, debugged and maintained. And a torque adjusting knob is arranged on the control panel assembly and is used for adjusting the working torque of the hydraulic tongs.
(1) And (3) a buckling process:
after the equipment is started, the telescopic boom is controlled to move forwards to the position of a well head, then the back-up tong clamps the bottom drilling tool, the spinner clamps the drilling tool, the spinner rotates to be buckled up for pre-tightening, then the main tong clamps the drilling tool to be connected, the drilling tool is buckled up to a certain torque, the main tong is loosened after the drilling tool is tightened, the back-up tong is loosened, and then the telescopic boom returns to the initial position.
(2) And (3) a shackle removing process:
the shackle flow is the reverse process of the make-up flow, and the main difference is as follows: when the back-up tong at the lowest part clamps the drill rod during the shackle, the main tong starts to act firstly, when the shackle torque of the main tong reaches the specified torque, the spinner starts to drive the pipe column to rotate to shackle, and the telescopic arm retracts after the shackle is completed to drive the whole large tong to retract to the initial position, namely the shackle process.
5. Electric racking platform intelligent pipe arranging system
The two-layer rack body of the electric two-layer platform intelligent pipe arranging system is arranged at a proper position of a derrick, and the two-layer platform mechanical arm is arranged in a tongue platform of the two-layer platform to replace manual work for arranging oil pipes/drill pipes. An operator can control the pipe arranging system on the surface of the workover rig without performing high-altitude high-strength operation on a 10-20 m high-rise platform.
The racking platform mechanical arm is arranged on the racking platform, so that the drilling rod grabbing and discharging stroke is not hindered, the operation switching from the pipe arranging system to manual operation is carried out for only a few minutes, and the shutdown of the workover rig system caused by the failure of the pipe arranging system is avoided.
Each part of manipulator assembly adopts motor drive and provides power, and electric control system control whole platform equipment work, and the control mode has two kinds: manual control and automatic control, and the two control modes can be switched at any time. The electric control system controls the motor to accurately control the stroke of the motor, so that the position of each oil pipe or drill rod is accurately controlled, and the oil pipe or drill rod is grabbed and released.
The manipulator assembly is provided with 4 motors to respectively control sliding, rotating, swinging and grabbing actions, each group of servo motors are controlled by a PLC (programmable logic controller), the actions are carried out according to a pre-designed program, and the actuating mechanism assembly automatically works in the process. When the manipulator assembly automatically works and an accident occurs, the manipulator assembly can be manually stopped at any time.
6. Pneumatic slip
The pneumatic slip is a power tool for clamping a drill pipe and a casing pipe, is arranged in a rotary table core supplementing hole to replace a rotary table core supplementing hole, and has the function of automatically clamping and loosening a pipe column when the oil drilling is started and stopped.
The pneumatic slip is located right above a well head and is main equipment for clamping an oil pipe, the pneumatic slip is automatically opened and closed through pneumatic, full adaptation of a 2-inch 3-5-inch half-size oil pipe is realized through a mode of replacing dies, and the clamping reliability is guaranteed. The pneumatic slips degree of automation is high, and the rotary switch of department's accuse platform of accessible carries out control operation, uses safe and reliable more. On the slip tooth body, a device for preventing the slip tooth from blocking the pipe column is arranged, so that the problem of reverse blocking possibly occurring when the pipe column is lifted is well solved. The power pipeline is convenient and fast to connect, is simple to operate, and greatly improves the construction efficiency and the HSE strength. The gas circuit pipeline is convenient and quick to connect and simple to operate.
7. Hydraulic elevator
The land workover rig adopts a non-top drive mode, the hydraulic elevator adopts a manual operation elevator, and the hydraulic elevator is used for replacing the elevator mode of the conventional manual buckling mode in order to realize unmanned operation of the racking platform, reduce the labor intensity of workers, enhance the operation safety and reduce the potential risk of manual work at high altitude.
8. Video monitoring system
The video monitoring system mainly comprises five anti-explosion cameras, an anti-explosion monitoring host, an anti-explosion monitor, a control keyboard, a connecting cable, a plug connector and the like.
System function
a. A real-time monitoring function;
b. video picture storage and playback functions;
c. video file backup and export functions;
d. and the functions of picture division and automatic switching.
The iron roughneck, the hydraulic elevator, the starting slips and the electric racking platform intelligent pipe arranging system in the embodiment adopt the structure in the prior art, and only the functions in the invention can be realized.
Second, automatic operation method for oil field major workover operation
The method comprises the following steps of conveying a single pipe column to a catwalk machine and lowering the well, taking the single pipe column from a well to convey the single pipe column to the catwalk machine, taking the double pipe columns from a stand box and lowering the well, and taking the double pipe columns from the well to place in the stand box.
1. The process of conveying a single pipe column from the catwalk machine to run into the well is as follows:
after the catwalk machine picks up the pipe to the lifting arm, the lifting arm moves upwards to convey the pipe column to the surface of a drill floor, the hydraulic elevator starts to lift after clamping one end of the pipe column, meanwhile, the pipe receiving and conveying manipulator clamps the other end of the pipe column, the pipe column is conveyed to the position above a well mouth and is centered, then an iron roughneck starts to buckle, the pipe column and the inner pipe column in the well are buckled, and the catwalk machine finishes the downward reset action; and after the tripping of the iron roughneck is finished, the pneumatic slips are opened, and after the hydraulic elevator descends to a specified position, the pneumatic slips are closed to clamp the tubular column which is lowered into the well, so that the single action process is completed. The whole action flow time does not exceed 120 s.
2. The process of taking a single tubular column from a well and conveying the single tubular column to the catwalk machine is as follows:
the traveling block drives the hydraulic elevator to descend, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, the pipe receiving and conveying manipulator grasps the bottom of the pipe column, after the iron roughneck breaks out, the hydraulic elevator ascends, the pipe receiving and conveying manipulator conveys the pipe column to a lifting arm of a catwalk machine, the hydraulic elevator loosens the pipe column, and the catwalk machine conveys the pipe column to the ground. The whole action flow does not exceed 120 s.
3. The process of taking two tubular columns from the stand box and drilling the tubular columns is as follows:
after ensuring that relevant finger lock is opened, snatch the tubular column top and send to in the hydraulic elevator by the platform manipulator of second floor, the closed back platform manipulator of hydraulic elevator resets, the bottom of this tubular column is grabbed from the back box to the pendulum pipe robot simultaneously, the hydraulic elevator short distance promotes, make the tubular column leave the back box of standing, pendulum pipe robot sends the tubular column to the well head afterwards, accomplish the operation of detaining of going up by the iron roughneck after the centering, carry out the knot with this tubular column and interior tubular column of well, after the knot that goes up, the iron roughneck resets, pneumatic slips is opened, after the hydraulic elevator descends to the assigned position, pneumatic slips is closed and is carried the tubular column of having gone into the well, accomplish and get the tubular column and go into the well drilling work flow. The whole action flow does not exceed 120 s.
4. The process of taking two tubular columns from the well drilling and placing the tubular columns in the root box is as follows:
the hydraulic elevator descends, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, the pipe arranging robot grabs the bottom of the pipe column, the pipe column is placed in the stand box, the hydraulic elevator descends, the two-layer platform manipulator grabs the top of the pipe column, the fingerboard lock is opened, the hydraulic elevator is opened, the two-layer platform manipulator places the pipe column, and the process of taking two pipe columns from the drilling well and placing the two pipe columns in the stand box is completed. The whole action flow does not exceed 120 s.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An automatic operation system for large workover operations in oil fields is characterized by comprising a main drill floor, an auxiliary drill floor and a derrick which are positioned around a well head, wherein a pipe receiving and sending manipulator for receiving, sending and righting a pipe column and an iron driller for realizing the make-up and break-out of the pipe column in the operation process are arranged near the well head on the main drill floor, and a pneumatic slip for clamping the pipe column is arranged at the position of the well head; an electric racking platform intelligent pipe arrangement system and a traveling block capable of moving up and down along the derrick direction are installed above the derrick, a hydraulic elevator is connected to the lower portion of the traveling block through a hanging ring, and a racking platform manipulator and a finger lock for positioning a pipe column are arranged on the electric racking platform intelligent pipe arrangement system; the pipe arranging machine is characterized in that a stand box used for containing a pipe column and a pipe arranging robot used for placing the pipe column are arranged below the electric racking platform intelligent pipe arranging system on the auxiliary drill floor, and drillers used for integrated control are arranged on the main drill floor and the auxiliary drill floor.
2. The automatic operation system for oilfield workover operations according to claim 1, wherein the derrick comprises an upper derrick and a lower derrick which can extend and retract up and down, and the electric racking platform intelligent pipe arranging system is fixed on the upper derrick.
3. An automatic operation method for the oilfield major workover operation, which adopts the automatic operation system for the oilfield major workover operation according to claim 1, and is characterized by comprising a single tubular column conveying process from a catwalk machine, a single tubular column conveying process from a drilling well to the catwalk machine, a double tubular column conveying process from a stand box, and a double tubular column conveying process from the drilling well.
4. The automatic operation method for the oilfield major workover operation according to claim 3, wherein the single tubular column conveyed by the catwalk machine is conveyed to the well in the following specific process:
after the catwalk machine picks up the pipe to the lifting arm, the lifting arm moves upwards to convey the pipe column to the surface of a drill floor, the hydraulic elevator starts to lift after clamping one end of the pipe column, meanwhile, the pipe receiving and conveying manipulator clamps the other end of the pipe column, the pipe column is conveyed to the position above a well mouth and is centered, then an iron roughneck starts to buckle, the pipe column and the inner pipe column in the well are buckled, and the catwalk machine finishes the downward reset action; and after the tripping of the iron roughneck is finished, the pneumatic slips are opened, and after the hydraulic elevator descends to a specified position, the pneumatic slips are closed to clamp the tubular column which is lowered into the well, so that the single action process is completed.
5. The automatic operation method for the oilfield major workover operation according to claim 3, wherein the process of taking a single tubular string from a well and conveying the single tubular string to the catwalk machine is as follows:
the hydraulic elevator descends, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, a pipe receiving and conveying manipulator grasps the bottom of the pipe column, after the iron roughneck finishes breaking out, the hydraulic elevator ascends, the pipe receiving and conveying manipulator conveys the pipe column to a lifting arm of a catwalk machine, the pipe column is loosened by the hydraulic elevator, and the catwalk machine conveys the pipe column to the ground.
6. The automatic operation method for the oilfield major workover operation according to claim 3, wherein the drilling process of taking two strings from the setback is as follows:
after ensuring that relevant finger lock is opened, snatch the tubular column top and send to in the hydraulic elevator by the platform manipulator of second floor, the closed back platform manipulator of hydraulic elevator resets, the bottom of this tubular column is grabbed from the back box to the pendulum pipe robot simultaneously, the hydraulic elevator short distance promotes, make the tubular column leave the back box of standing, pendulum pipe robot sends the tubular column to the well head afterwards, accomplish the operation of detaining of going up by the iron roughneck after the centering, carry out the knot with this tubular column and interior tubular column of well, after the knot that goes up, the iron roughneck resets, pneumatic slips is opened, after the hydraulic elevator descends to the assigned position, pneumatic slips is closed and is carried the tubular column of having gone into the well, accomplish and get the tubular column and go into the well drilling work flow.
7. The automatic operation method for the oilfield major workover operation according to claim 3, wherein the process of taking two tubular strings from the well and placing the tubular strings in the root box is as follows:
the hydraulic elevator descends, the top section of a pipe column in a clamping well is clamped, the pneumatic slips are opened, after the hydraulic elevator ascends to a specified height, the pneumatic slips are closed to clamp the pipe column in the well, an iron roughneck starts to break out, a connecting buckle between two sections of pipe columns is opened, the pipe arranging robot grabs the bottom of the pipe column, the pipe column is placed in the stand box, the hydraulic elevator descends, the two-layer platform manipulator grabs the top of the pipe column, the fingerboard lock is opened, the hydraulic elevator is opened, the two-layer platform manipulator places the pipe column, and the process of taking two pipe columns from the drilling well and placing the two pipe columns in the stand box is completed.
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| CN116181249A (en) * | 2023-04-24 | 2023-05-30 | 四川宏华电气有限责任公司 | High-altitude unmanned operation device for oil field tripping pipe column and use method |
| CN116988746A (en) * | 2023-09-26 | 2023-11-03 | 胜利油田康贝石油工程装备有限公司 | Unpowered elevator automatic well repair operation device and use method |
| CN116988746B (en) * | 2023-09-26 | 2023-11-28 | 胜利油田康贝石油工程装备有限公司 | Unpowered elevator automatic well repair operation device and use method |
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