Pipe column inclined pushing type power catwalk and method

Abstract

The invention belongs to the technical field of petroleum drilling machine equipment, and discloses a pipe column inclined pushing type power catwalk and a method. The pipe column inclined pushing type power catwalk comprises a base, a ramp is hinged to the base, and the top of the ramp is in lap joint with a drilling machine base; the two sides of the base are each hinged to a set of pipe arranging frame, a plurality of pipe columns are arranged on the pipe arranging frames, the front end and the rear end of the base 1 are each provided with a set of sliding devices, and the rear end of the base is further provided with an auxiliary device matched with the pipe columns. A group of lifting devices are arranged between the base and the ramp; the middle of the ramp and the middle of the base are each of a V-shaped groove structure, and a sliding trolley is matched with the V-shaped groove structures. A driving system is arranged in the base, a telescopic oil cylinder is arranged in the driving system, the telescopic oil cylinder is connected with the sliding trolley through a movable pulley block, and a steel wire rope is matched with the movable pulley block; the problems that an existing power catwalk is long in operation period, low in efficiency, large in equipment power, high in energy consumption and the like can be effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of oil drilling equipment and relates to a power catwalk, in particular to a pipe column oblique push type power catwalk and a method. Background Art

[0002] In oil well drilling and repair operations, it is usually necessary to frequently trip and drill the pipe. The pipe conveying intensity is high, and the pipe conveying efficiency seriously affects the drilling efficiency and operating costs. In order to improve the drilling efficiency, oil drilling rigs are generally equipped with an automated pipe handling system, among which the power catwalk is the main pipe conveying equipment, which can realize the automated conveying of the pipe between the yard and the drilling floor. The existing power catwalk mainly realizes the conveying of the pipe by lifting the transport arm and pushing the sliding trolley. The whole process requires the transport arm and the pipe to be pulled up to the drilling floor together, and then the sliding trolley pushes the pipe to the center of the wellbore. The operation cycle is long, the efficiency is low, the equipment power is large, the energy consumption is high, and the operating cost is increased. At the same time, the existing equipment is usually large in size and difficult to disassemble and assemble, which is not conducive to on-site inspection and maintenance operations. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies in the prior art and to propose a pipe column oblique push power catwalk and method that can effectively solve the problems of long operation cycle, low efficiency, high equipment power, high energy consumption, etc. of the existing power catwalk.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solutions: a pipe column oblique push power catwalk includes a base, a ramp is hinged on the base, and the top of the ramp is overlapped on the drilling rig base; a group of pipe racks are hinged on both sides of the base, and a plurality of pipe columns are arranged on the pipe racks; a group of sliding devices are respectively installed at the front and rear ends of the base 1, and an auxiliary device matching with the pipe column is also provided at the rear end of the base; a group of lifting devices is arranged between the base and the ramp; the ramp and the middle part of the base are both V-groove structures, and the V-groove structure is matched with a sliding trolley; a driving system is arranged in the base, and a telescopic cylinder is arranged in the driving system, and the telescopic cylinder is connected to the sliding trolley through a movable pulley group, and a steel wire rope is matched on the movable pulley group.

[0005] Preferably, the base includes a base welded body with a box-type structure, a plurality of grid plates are arranged on the top of the base welded body, a group of feeding devices are respectively arranged on both sides of the base welded body, a V-shaped groove structure is adopted in the middle part of the base welded body, a group of discharging devices are respectively arranged on the inclined surfaces on both sides of the V-shaped groove structure, and a group of guide pulley group I is arranged at the front end of the V-shaped groove.

[0006] Preferably, the ramp includes a ramp welded body, on which a fixed pulley group I is provided; the sliding trolley includes a trolley body, the trolley body is connected to a wire rope connecting frame, the wire rope is castably connected to the wire rope connecting frame, and a group of guide pulley groups II are provided at the bottom of the trolley body; the bottom of the trolley body is a V-shaped bent plate structure, and the guide pulley groups II on both sides of the trolley body are conical structures and arranged in a V shape.

[0007] Preferably, the auxiliary device comprises a mounting frame, which is fixed to the rear end of the base welding body, and a pneumatic winch is fixed to the mounting frame.

[0008] Preferably, the driving system includes a track fixed in the base welding body, a telescopic cylinder is provided on the side of the track, the cylinder barrel end of the telescopic cylinder is hinged to the base welding body, the cylinder rod end of the telescopic cylinder is hinged to the movable pulley group, and the movable pulley group is arranged in the track; the driving system also includes a fixed pulley group III arranged at the front end of the base welding body, a tensioning pulley group II arranged at the front end of the base welding body, and a tensioning pulley group I arranged at the rear end of the base welding body.

[0009] Preferably, one end of the wire rope passes through the guide pulley group I, the fixed pulley group I, the tensioning pulley group II, the movable pulley group and the fixed pulley group III in sequence and is fixed on the dead rope device, and the pulleys on the left half of the movable pulley group and all the pulleys on the fixed pulley group III form a multi-rope movable pulley assembly I through the wire rope; the other end of the wire rope passes through the tensioning pulley group I, the movable pulley group and the fixed pulley group II in sequence and is fixed on the dead rope device, and the pulleys on the right half of the movable pulley group and all the pulleys on the fixed pulley group II form a multi-rope movable pulley assembly II through the wire rope; the movable pulley group is a multi-rope pulley group.

[0010] A method for conveying a pipe string, when performing a pipe string loading operation, if the driller side is selected as the pipe string feeding side, the pipe rack oil cylinder on the driller side extends, the pipe rack rotates and tilts along the hinge point, all the pipe strings on the pipe rack roll toward the base and stop at the material stop, after the upper computer issues an automatic loading instruction, the sliding trolley moves to the zero position, the feeding device flips the first pipe string into the V-shaped groove of the base welding body, the telescopic oil cylinder in the drive system extends, the sliding trolley moves forward, and pushes the pipe string to the center of the wellbore, after the lifting card takes away the pipe string, the telescopic oil cylinder retracts, the sliding trolley retreats to the zero point, and the conveying operation of all pipe strings is completed by analogy; During the pipe string lowering operation, if the driller side is selected as the pipe string lowering side, after the upper computer issues an automatic unloading command, the pipe rack on the driller side returns to a horizontal state, the telescopic cylinder in the drive system extends, and the sliding trolley moves forward to the pipe string waiting area. After the pipe string completely enters the V-groove of the ramp and stops on the sliding trolley, the hanging card opens, and then the telescopic cylinder retracts, and the sliding trolley retreats to the zero point. Finally, the discharge device on the opposite side of the driller pushes the pipe string out of the V-groove, and the pipe string rolls and stops on the pipe rack on the driller side. This process is repeated to complete the lowering operation of all pipe strings.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention adopts a sliding trolley to directly push the drill pipe obliquely to the center of the wellbore, which has simple action, high speed and low energy consumption; a telescopic oil cylinder and a movable pulley group are used as driving elements, which have high efficiency and low noise; a non-metallic grid plate is laid on the top of the base to avoid impact deformation of the pipe column when rolling, and at the same time reduce the rolling noise of the pipe column; multiple groups of guide pulleys are arranged in the sliding trolley and the base to ensure the smooth operation of the sliding trolley; the forward and backward movement of the sliding trolley is under the control of the drive system, and the operation is more stable and efficient; two groups of wire rope tensioning pulley groups are used to facilitate the adjustment of the tightness of the wire rope; a ramp lifting device and a complete machine sliding device are used to facilitate on-site installation and inspection and maintenance operations; the power catwalk provided by the present invention has a compact structure, is easy to operate, has a high speed and low energy consumption, and is suitable for oil drilling rigs of various specifications; the pipe column slides along the V-groove, and the pipe column transportation is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 It is a schematic diagram of the structure of the base; Figure 4 yes Figure 3 Middle AA section view; Figure 5 It is a structural schematic diagram of the guide pulley block I; Figure 6 It is a schematic diagram of the structure of the ramp; Figure 7 It is a schematic diagram of the structure of the skid trolley; Figure 8 yes Figure 3 Middle BB section view; Fig. 9 It is a structural diagram of a movable pulley block; Fig.10 It is a schematic diagram of tubing delivery.

[0013] Among them, 1. base, 101. base welding body, 102. grid plate, 103. feeding device, 104. discharging device, 105. guide pulley block I, 2. sliding trolley, 201. trolley body, 202. wire rope connecting frame, 203. guide pulley block II, 3. ramp, 301. ramp welding body, 302. fixed pulley block I, 4. lifting device, 5. sliding device, 6. pipe rack, 7. driving system, 701. telescopic cylinder, 702. movable pulley block, 703. track, 704. fixed pulley block II, 705. fixed pulley block III, 706. tensioning pulley block I, 707. tensioning pulley block II, 708. wire rope, 8. auxiliary device, 801. mounting frame, 802. pneumatic winch, 9. pipe column. DETAILED DESCRIPTION

[0014] A pipe column oblique push type power catwalk and method, such as Figure 1-10 As shown, the rig comprises a base 1, a ramp 3 is hinged on the base 1, and the top of the ramp 3 is overlapped on the base of the drilling rig; a group of pipe racks 6 are hinged on both sides of the base 1, and a plurality of pipe columns 9 are arranged on the pipe racks; a group of sliding devices 5 are respectively installed at the front and rear ends of the base 1, so that the power catwalk can be moved in multiple directions; an auxiliary device 8 cooperating with the pipe column 9 is also arranged at the rear end of the base 1, so that the manual lowering operation of the pipe column 9 can be realized; a group of lifting devices 4 is arranged between the base 1 and the ramp 3, so that the power catwalk can be moved in multiple directions; The lifting and retracting operations of the ramp 3; the ramp 3 and the middle part of the base 1 are both V-groove structures, and the V-groove structure is equipped with a sliding trolley 2, which can move forward and backward along the V-groove; a driving system 7 is provided in the base 1, and a telescopic cylinder 701 is provided in the driving system 7. The telescopic cylinder 701 is connected to the sliding trolley 2 through a movable pulley block, and the movable pulley block is equipped with a wire rope 708. The movement of the telescopic cylinder 701 in the driving system drives the sliding trolley 2 to move forward and backward.

[0015] The base 1 includes a base welded body 101 with a box-type structure, a plurality of grid plates 102 are arranged on the top of the base welded body 101, the grid plates 102 are made of non-metallic material, a group of feeding devices 103 are respectively arranged on both sides of the base welded body 101, a V-shaped groove structure is adopted in the middle part of the base welded body 101, a group of discharging devices 104 are respectively arranged on the inclined surfaces on both sides of the V-shaped groove structure, a group of guide pulley group I105 is arranged at the front end of the V-shaped groove, and the guide pulley group I105 contains a plurality of small rollers and is arranged along a curve.

[0016] The ramp 3 includes a ramp welded body 301, on which a fixed pulley group I302 is provided; the sliding trolley 2 includes a trolley body 201, the trolley body 201 is connected to a wire rope connecting frame 202 by bolts, the wire rope 708 is cast-connected to the wire rope connecting frame 202, and a group of guide pulley groups II203 are provided at the bottom of the trolley body 201; the auxiliary device includes a mounting frame 801, the mounting frame 801 is fixed to the rear end of the base welded body 101, and a pneumatic winch 802 is fixed to the mounting frame 801 by bolts; the bottom of the trolley body 201 is a V-shaped bent plate structure, and the guide pulley groups II203 on both sides of the trolley body 201 are both conical structures and arranged in a V shape.

[0017] The driving system 7 includes a track 703 fixed in the base welding body 101, a telescopic cylinder 701 is provided on the side of the track 703, the cylinder end of the telescopic cylinder 701 is hinged on the base welding body 101, and the cylinder rod end of the telescopic cylinder 701 is hinged on the movable pulley group 702, and the movable pulley group 702 is arranged in the track 703; the driving system 7 also includes a fixed pulley group III705 arranged at the front end of the base welding body 101, a tensioning pulley group II707 arranged at the front end of the base welding body 101 and a tensioning pulley group I706 arranged at the rear end of the base welding body 101.

[0018] One end of the wire rope 708 passes through the guide pulley group I105, the fixed pulley group I302, the tensioning pulley group II707, all the pulleys in the left half of the movable pulley group 702 and all the pulleys in the fixed pulley group III705 in sequence and is fixed on the dead rope device. The pulleys in the left half of the movable pulley group 702 and all the pulleys in the fixed pulley group III705 form a multi-rope movable pulley assembly I through the wire rope 708; the other end of the wire rope 708 passes through the tensioning pulley group I706, all the pulleys in the right half of the movable pulley group 702 and all the pulleys in the fixed pulley group II704 in sequence and is fixed on the dead rope device. The pulleys in the right half of the movable pulley group 702 and all the pulleys in the fixed pulley group II704 form a multi-rope movable pulley assembly II through the wire rope 708; the movable pulley group 702 is a multi-rope pulley group.

[0019] When the telescopic cylinder 701 retracts, the movable pulley block 702 moves forward along the track 703, the movable pulley assembly I releases the rope, the movable pulley assembly II retracts the rope, and the sliding trolley 2 moves backward; when the telescopic cylinder 701 extends, the movable pulley block 702 moves backward along the track 703, the movable pulley assembly I retracts the rope, the movable pulley assembly II releases the rope, and the sliding trolley 2 moves forward.

[0020] The working method of this embodiment is as follows: Fig.10As shown, when the power catwalk of this embodiment is used to carry out the operation of loading the tubing string, if the driller's side is selected as the tubing feeding side, the oil cylinder of the pipe rack 6 on the driller's side extends out, the pipe rack 6 rotates and tilts along the hinge point, and all the tubing strings 9 on the pipe rack 6 roll toward the base 1 and stop at the material block. After the upper computer issues an automatic loading instruction, the sliding trolley 2 moves to the zero position, and the feeding device 103 flips the first tubing string 9 into the V-groove of the base welding body 101, the telescopic cylinder 701 in the drive system 7 extends out, and the sliding trolley 2 moves forward to push the tubing string 9 to the center of the wellbore. After the elevator takes away the tubing string 9, the telescopic cylinder 701 retracts, and the sliding trolley 2 retreats to the zero point, and so on to complete the transportation operation of all tubing strings.

[0021] During the pipe string lowering operation, if the driller's side is selected as the pipe string lowering side, after the upper computer issues an automatic unloading command, the pipe rack 6 on the driller's side returns to a horizontal state, the telescopic cylinder 701 in the drive system 7 extends, and the sliding trolley 2 advances to the pipe string waiting area. After the pipe string 9 completely enters the V-groove of the ramp 3 and stops on the sliding trolley 2, the hanging card is opened, and then the telescopic cylinder 701 retracts, and the sliding trolley 2 retreats to the zero point. Finally, the discharge device 104 on the opposite side of the driller pushes the pipe string 9 out of the V-groove, and the pipe string 9 rolls and stops on the pipe rack 6 on the driller's side. And so on, completing the lowering operation of all pipe strings 9.

Claims

1. A pipe column oblique push type power catwalk, characterized in that: It includes a base, on which a ramp is hinged, and the top of the ramp is overlapped on the drilling rig base; a group of pipe racks are hinged on both sides of the base, and a plurality of pipe columns are arranged on the pipe racks; a group of sliding devices are respectively installed at the front and rear ends of the base 1, and the rear end of the base is also provided with an auxiliary device matched with the pipe column; a group of lifting devices is arranged between the base and the ramp; the ramp and the middle part of the base are both V-groove structures, and the V-groove structure is matched with a sliding trolley; a driving system is arranged in the base, and a telescopic cylinder is arranged in the driving system, and the telescopic cylinder is connected to the sliding trolley through a movable pulley block, and the movable pulley block is matched with a wire rope.

2. The pipe column oblique push type power catwalk according to claim 1, characterized in that: The base includes a base welded body with a box-type structure, a plurality of grid plates are arranged on the top of the base welded body, a group of feeding devices are respectively arranged on both sides of the base welded body, a V-shaped groove structure is adopted in the middle part of the base welded body, a group of discharging devices are respectively arranged on the inclined surfaces on both sides of the V-shaped groove structure, and a group of guide pulley group I is arranged at the front end of the V-shaped groove.

3. The column oblique push power catwalk according to claim 2, characterized in that: The ramp includes a ramp welded body, on which a fixed pulley group I is provided; the sliding trolley includes a trolley body, the trolley body is connected to a wire rope connecting frame, the wire rope is cast-connected to the wire rope connecting frame, and a group of guide pulley groups II are provided at the bottom of the trolley body; the bottom of the trolley body is a V-shaped bent plate structure, and the guide pulley groups II on both sides of the trolley body are both conical structures and arranged in a V shape.

4. The pipe column oblique push type power catwalk according to claim 3, characterized in that: The auxiliary device comprises a mounting frame which is fixed at the rear end of the base welding body and on which a pneumatic winch is fixed.

5. The pipe column oblique push type power catwalk according to claim 4, characterized in that: The driving system includes a track fixed in the base welding body, a telescopic cylinder is provided on the side of the track, the cylinder barrel end of the telescopic cylinder is hinged on the base welding body, the cylinder rod end of the telescopic cylinder is hinged on the movable pulley group, and the movable pulley group is arranged in the track; the driving system also includes a fixed pulley group III arranged at the front end of the base welding body, a tensioning pulley group II arranged at the front end of the base welding body, and a tensioning pulley group I arranged at the rear end of the base welding body.

6. The pipe column oblique push type power catwalk according to claim 5, characterized in that: One end of the wire rope passes through the guide pulley block I, the fixed pulley block I, the tensioning pulley block II, the movable pulley block and the fixed pulley block III in sequence and is fixed on the dead rope device, and the pulleys on the left half of the movable pulley block and all the pulleys on the fixed pulley block III form a multi-rope movable pulley assembly I through the wire rope; the other end of the wire rope passes through the tensioning pulley block I, the movable pulley block and the fixed pulley block II in sequence and is fixed on the dead rope device, and the pulleys on the right half of the movable pulley block and all the pulleys on the fixed pulley block II form a multi-rope movable pulley assembly II through the wire rope; the movable pulley block is a multi-rope pulley block.

7. A method for pipe column transportation, characterized in that: When the pipe string is being loaded, if the driller side is selected as the pipe string feeding side, the pipe rack cylinder on the driller side extends, the pipe rack rotates and tilts along the hinge point, all the pipe strings on the pipe rack roll toward the base and stop at the material stop. After the upper computer issues an automatic loading command, the sliding trolley moves to the zero position, the feeding device flips the first pipe string into the V-groove of the base welding body, the telescopic cylinder in the drive system extends, the sliding trolley moves forward, and pushes the pipe string to the center of the wellbore. After the elevator takes away the pipe string, the telescopic cylinder retracts, and the sliding trolley retreats to the zero point. This process completes the transportation of all pipe strings. During the pipe string lowering operation, if the driller side is selected as the pipe string lowering side, after the upper computer issues an automatic unloading command, the pipe rack on the driller side returns to a horizontal state, the telescopic cylinder in the drive system extends, and the sliding trolley moves forward to the pipe string waiting area. After the pipe string completely enters the V-groove of the ramp and stops on the sliding trolley, the hanging card opens, and then the telescopic cylinder retracts, and the sliding trolley retreats to the zero point. Finally, the discharge device on the opposite side of the driller pushes the pipe string out of the V-groove, and the pipe string rolls and stops on the pipe rack on the driller side. This process is repeated to complete the lowering operation of all pipe strings.

Images