Power catwalk with high-position storage rack

Abstract

The invention discloses a power catwalk with a high-position storage rack, which comprises a U-shaped base main body assembly, one side of the base main body assembly is welded with a group of ladders, the other side of the base main body assembly is provided with a ramp assembly, and a high-position platform is fixed between two ends of the base main body assembly. A hydraulic control unit and a lifting winch are arranged at the top of one end, close to the ladder, of the high-position platform, two lifting devices are arranged on the two sides, between the hydraulic control unit and the ramp assembly, of the high-position platform respectively, high-position storage frames are arranged on the high-position platform and close to the lifting devices respectively, and a turnover device is arranged between the two high-position storage frames. According to the power catwalk with the high-position storage frame, the problem that an existing catwalk has no space for storing standby pipe columns under the emergency condition is solved through the arrangement of the high-position storage frame, meanwhile, the connecting pull rod set and the drilling machine base are connected into a whole, all parts do not make contact with the ground, and no part of the power catwalk needs to be dismantled; and the power catwalk can be quickly moved along with the drilling machine.

Description

Technical Field

[0001] The invention belongs to the technical field of oil drilling equipment and relates to a power catwalk with a high-position storage rack. Background Art

[0002] In recent years, the automation system of the pipe string of land oil drilling rigs has become more and more mature, and has gradually replaced the traditional manual high-risk and high-intensity operations. At the oil field operation site, the pipe string automation system has a significant effect in reducing the labor intensity of drilling workers and reducing the risk of operations.

[0003] The power catwalk is one of the core equipment in the pipe automation system, which mainly realizes the two-way automatic transportation of pipes from the ground pipe laying area to the drilling floor, or from the drilling floor to the ground pipe laying area. At present, more and more power catwalks are used in oilfield drilling operations; however, the existing power catwalks still have the following problems: First, the existing power catwalks are difficult to meet the needs of fast movement of the drilling rig in cluster well operations and avoid the cluster well Christmas tree; second, the elevated power catwalk that can achieve fast movement and avoid the space of the Christmas tree has no space to store spare pipes at a high position, which is not conducive to emergency response in emergency situations. Summary of the invention

[0004] The purpose of the present invention is to provide a power catwalk with a high-position storage rack, which solves the problem in the prior art that the power catwalk adapted to slave well operations has no space for storing spare pipe strings at a high position.

[0005] The technical solution adopted by the present invention is a power catwalk with a high-level storage rack, which includes a base body assembly. The base body assembly is U-shaped, a group of ladders are welded on one side of the base body assembly, and a ramp assembly is arranged on the other side. A high-level platform is fixed between the two ends of the base body assembly, a hydraulic control unit and a lifting winch are arranged at the top of the high-level platform near one end of the ladder, a group of lifting devices are respectively arranged on both sides of the high-level platform between the hydraulic control unit and the ramp assembly, a high-level storage rack is arranged on the high-level platform near each group of lifting devices, and two groups of turning devices are arranged between the two groups of high-level storage racks.

[0006] The present invention is also characterized in that:

[0007] The base body assembly includes two groups of lower brackets, one group of lower brackets is welded with front brackets at both ends, and the other group of lower brackets is welded with rear brackets at both ends. The front bracket and the rear bracket are connected to the bottom of both ends of the high-position platform through connecting pins a.

[0008] The high platform includes a middle connecting frame, a left connecting frame and a right connecting frame are respectively arranged on both sides of the middle connecting frame, the left connecting frame is fixed on the rear bracket, and the right connecting frame is fixed on the front bracket; the left connecting frame, the middle connecting frame and the right connecting frame are arranged side by side and contact each other.

[0009] The two groups of high-position storage racks are respectively fixed on the left connecting frame and the right connecting frame, and the two groups of turning devices are fixed on the middle connecting frame. A V-shaped groove is arranged in the middle of the middle connecting frame, and V-shaped groove stop pins are arranged on both sides of the V-shaped groove. The V-shaped groove and the turning device are arranged in the same direction.

[0010] The high-position storage rack includes a storage rack seesaw beam, and the center of the storage rack seesaw beam is connected to a positioning ear seat through a connecting pin shaft d. There are four positioning ear seats, which are respectively welded on the left connecting frame and the right connecting frame; column stop pins are respectively installed on the upper surfaces of both ends of the storage rack seesaw beam, and the storage rack seesaw beam is respectively provided with three through holes a near the column stop pins, and rotating ear seats are respectively welded on the left connecting frame and the right connecting frame at positions corresponding to the through holes a, and the rotating ear seats are provided with through holes b, and the through holes b are connected to the through holes a through safety pins, and there are eight safety pins.

[0011] Each set of turning devices includes two turning beams, which are L-shaped. One end of each turning beam is hinged to the storage rack rocker beam, and the other end is connected to the hydraulic cylinder through a connecting pin e. The hydraulic cylinder is fixed to the middle connecting frame through a cylinder support.

[0012] The lifting device includes a guide rail, a driving sprocket shaft is arranged at one end of the guide rail, and a passive sprocket shaft is arranged at the other end. A driving sprocket is installed on one end of the driving sprocket shaft, and the other end is connected to a hydraulic motor assembly installed on the guide rail. A passive sprocket is installed on the passive sprocket shaft, and the driving sprocket and the passive sprocket are connected by a chain; a trolley assembly is arranged on the guide rail along the direction of the chain, and a drill-throwing bracket is arranged on the surface of the guide rail opposite to the trolley assembly. The trolley assembly and the drill-throwing bracket are connected by a connecting pin shaft c, and a connecting frame is fixed on the top of the trolley assembly, and the connecting frame is connected by a supporting connecting rod Connecting hook assembly, the hook assembly adopts sleeve-type telescopic structure; the guide rail is also provided with an upper limit and an upper connecting ear seat near the active sprocket shaft, and the guide rail is provided with a lower limit and a lower connecting ear seat near the passive sprocket shaft. The upper limit and the lower limit are fixed on the same plane as the trolley assembly, the upper connecting ear seat and the lower connecting ear seat are welded on the plane opposite to the trolley assembly, the upper connecting ear seat is connected to the high-position platform through the connecting pin shaft b, and the lower connecting ear seat is connected to the base body assembly through the connecting pin shaft b; the guide rail is also provided with a tensioning mechanism at the passive sprocket.

[0013] The ramp assembly includes an outer ramp section and an inner ramp section, one end of the outer ramp section is sleeved inside one end of the inner ramp section, and the other end of the outer ramp section is connected to the ramp ear seat on the base main body assembly through a pin shaft; a telescopic hydraulic cylinder is connected between the outer ramp section and the inner ramp section through a pin shaft; a flip hydraulic cylinder is also arranged between the outer ramp section and the base main body assembly, a fixed end of the flip hydraulic cylinder is connected to the base main body assembly through a flip cylinder pin shaft, and a movable end of the flip hydraulic cylinder is connected to the midpoint of the outer ramp section through a pin shaft.

[0014] A connecting rod group is also arranged at the bottom of one end of the base body assembly close to the ramp assembly.

[0015] A guardrail assembly is fixed to the high platform near the ladder, and safety rope enclosures are also set on both sides of the high platform.

[0016] The beneficial effects of the present invention are:

[0017] (1) The power catwalk of the present invention has a high-position storage rack, which is integrally installed on the sliding track of the drilling rig and is connected to the base of the drilling rig by connecting the pull rod group. All components are not in contact with the ground and can be quickly moved forward and backward with the drilling rig as a whole without removing any components of the power catwalk.

[0018] (2) The present invention has a power catwalk with a high-level storage rack. The hook body of the lifting device is a sleeve-type telescopic structure. The length of the hook body can be quickly adjusted according to the size of the conveying pipe column and the number of pipe columns conveyed at a time to meet the needs of conveying multiple pipe columns at a time. The hook body assembly can quickly adjust the angle of the hook body assembly according to the working conditions of conveying the pipe column upward or downward, so that the pipe column can roll out or roll into the hook body freely.

[0019] (3) The present invention has a power catwalk for the high-position storage rack, and the lifting device is designed with a drill-throwing bracket. When the pipe column is transported to the ground, the upward driving force of the trolley enables the drill-throwing bracket to lift the pipe column on the storage rack and complete the action of turning the pipe column outside the trolley. There is no need to add a new turning action mechanism, which is simple and reliable.

[0020] (4) The present invention has a power catwalk with high-level storage racks, and high-level storage racks are arranged on both sides of the catwalk high-level platform to meet the needs of high-level storage of emergency single pipes or other spare pipe strings.

[0021] (5) The present invention has a power catwalk for a high-level storage rack. The high-level storage rack is a pair of seesaw beams that can be set in advance to tilt inward or outward according to the working conditions of transporting the pipe string to the drilling platform or to the ground, so that the pipe string can be arranged in an orderly and compact manner on the storage rack, which is convenient for the turning beam in the turning device to turn the pipe string inward into the V-shaped groove or the drill-throwing bracket in the lifting device to turn the pipe string out of the hook body.

[0022] (6) The present invention has a power catwalk of the high-level storage rack. The pipe column stop pins arranged at both ends of the seesaw beam of the high-level storage rack can be installed in different positions according to the size of the pipe column, so as to ensure that the lifting device can flip the drill support and the turning device can turn over a single pipe column at a time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the power catwalk with a high-position storage rack of the present invention;

[0024] Figure 2 is a top view of the power catwalk with a high-position storage rack of the present invention;

[0025] Figure 3It is a structural schematic diagram of a high-position platform in a power catwalk with a high-position storage rack of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a lifting device in a power catwalk with a high-position storage rack according to the present invention;

[0027] Figure 5 It is a structural schematic diagram of a high-position storage rack in a power catwalk with a high-position storage rack of the present invention;

[0028] Figure 6 It is a structural schematic diagram of a turning device in a power catwalk with a high-position storage rack according to the present invention;

[0029] Figure 7 It is a structural schematic diagram of a ramp assembly in a power catwalk with a high-position storage rack according to the present invention.

[0030] In the figure, 1. the main assembly of the base, 101. the lower bracket, 102. the rear bracket, 103. the front bracket, 104. the left connecting frame, 105. the middle connecting frame, 106. the right connecting frame, 107. the connecting rod group, 108. the ladder, 109. the safety rope enclosure, 110. the guardrail assembly, 111. the connecting pin a, 112. the V-shaped groove, 113. the lifting winch, 2. the lifting device, 201. the guide Rail, 202. Trolley assembly, 203. Support connecting rod, 204. Hook assembly, 205. Connecting frame, 206. Tensioning mechanism, 207. Lower limiter, 208. Driving sprocket, 209. Driving sprocket shaft, 210. Passive sprocket, 211. Passive sprocket shaft, 212. Chain, 213. Drilling bracket, 214. Upper connecting ear seat, 215. Lower connecting ear seat, 216. Connecting pin Shaft b, 217. Connecting pin c, 218. Hydraulic motor assembly, 219. Upper limit, 3. High-position storage rack, 301. Storage rack rocker beam, 302. Positioning ear seat, 303. Rotating ear seat, 304. Safety latch, 305. Pipe column stop pin, 306. Connecting pin d, 4. Turning device, 401. Turning beam, 402. V-groove stop pin, 403. Cylinder support, 404. Connecting Pin e, 405. Hydraulic cylinder, 5. Ramp assembly, 501. Ramp outer section, 502. Ramp inner section, 503. Flip cylinder pin, 504. Ramp ear seat, 505. Telescopic hydraulic cylinder, 506. Flip hydraulic cylinder, 6. Hydraulic control unit, 7. Ground pipe rack, 8. Pipe string, 9. Drilling platform, 10. Drilling platform lifting winch, 11. Drilling rig mobile guide rail, 12. Wellhead Christmas tree group, 13. Drilling rig. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] The present invention has a power catwalk with a high-position storage rack, such as Figure 1 , Figure 2 As shown, it includes a base main body assembly 1, which is U-shaped, with a set of ladders 108 welded on one side of the base main body assembly 1, and a ramp assembly 5 set on the other side. A high-level platform is fixed between the two ends of the base main body assembly 1, and a hydraulic control unit 6 and a lifting winch 113 are set on the top of the high-level platform near one end of the ladder 108. A set of lifting devices 2 are respectively set on both sides of the high-level platform between the hydraulic control unit 6 and the ramp assembly 5, and a high-level storage rack 3 is set on the high-level platform near each set of lifting devices 2, and two sets of turning devices 4 are set between two sets of high-level storage racks 3. The hydraulic control unit 6 provides a power source for each mechanism of the power catwalk and realizes precise control between the actions of each mechanism. It is composed of hydraulic cylinders, motors, control consoles for controlling the actions of the mechanisms, and various valve groups; each set of action mechanisms of the power catwalk is provided with a hydraulic synchronization unit, such as a lifting device 2, a turning device 4, etc., to achieve the requirements of action synchronization with different precisions; the control console is provided with a hydraulic control valve group, which can realize the operation of all actions of the power catwalk.

[0034] The base body assembly 1 includes two groups of lower brackets 101, the two ends of one group of lower brackets 101 are respectively welded with a front bracket 103, and the two ends of the other group of lower brackets 101 are respectively welded with a rear bracket 102. The front bracket 103 and the rear bracket 102 are respectively connected to the bottom of the two ends of the high-position platform through connecting pins a111.

[0035] The invention has a high-position platform in the power catwalk with a high-position storage rack, such as Figure 3 As shown, the high platform includes a middle connecting frame 105, and a left connecting frame 104 and a right connecting frame 106 are respectively arranged on both sides of the middle connecting frame 105. The left connecting frame 104 is fixed on the rear bracket 102, and the right connecting frame 106 is fixed on the front bracket 103; the left connecting frame 104, the middle connecting frame 105 and the right connecting frame 106 are arranged side by side and contact each other.

[0036] The two groups of high-position storage racks 3 are fixed on the left connecting rack 104 and the right connecting rack 106 respectively, and the two groups of turnover devices 4 are fixed on the middle connecting rack 105. A V-shaped groove 112 is arranged in the middle of the middle connecting rack 105, and V-shaped groove stop pins 402 are arranged on both sides of the V-shaped groove 112. The V-shaped groove 112 is arranged in the same direction as the turnover device 4). The turnover device 4 is composed of two groups of tiltable turnover beams 401, which are arranged on both sides of the V-shaped groove 112. One end of the turnover beam 401 is hinged on the storage rack rocker beam 301, and the other end is lifted by the hydraulic cylinder 405 and rotated around the hinge point to flip the pipe column 8 on the high-position storage rack 3 to the V-shaped groove 112 or flip the pipe column 8 in the V-shaped groove 112 to the high-position storage rack 3 on the opposite side.

[0037] Example 2

[0038] The present invention has a power catwalk with a high-position storage rack, such as Figure 1 , Figure 2 As shown, it includes a base main body assembly 1, which is U-shaped, with a set of ladders 108 welded on one side of the base main body assembly 1, and a ramp assembly 5 set on the other side. A high-level platform is fixed between the two ends of the base main body assembly 1, and a hydraulic control unit 6 and a lifting winch 113 are set on the top of the high-level platform near one end of the ladder 108. A set of lifting devices 2 are respectively set on both sides of the high-level platform between the hydraulic control unit 6 and the ramp assembly 5, and a high-level storage rack 3 is set on the high-level platform near each set of lifting devices 2, and two sets of turning devices 4 are set between two sets of high-level storage racks 3. The hydraulic control unit 6 provides a power source for each mechanism of the power catwalk and realizes precise control between the actions of each mechanism. It is composed of hydraulic cylinders, motors, control consoles for controlling the actions of the mechanisms, and various valve groups; each set of action mechanisms of the power catwalk is provided with a hydraulic synchronization unit, such as a lifting device 2, a turning device 4, etc., to achieve the requirements of action synchronization with different precisions; the control console is provided with a hydraulic control valve group, which can realize the operation of all actions of the power catwalk.

[0039] The base body assembly 1 includes two groups of lower brackets 101, the two ends of one group of lower brackets 101 are respectively welded with a front bracket 103, and the two ends of the other group of lower brackets 101 are respectively welded with a rear bracket 102. The front bracket 103 and the rear bracket 102 are respectively connected to the bottom of the two ends of the high-position platform through connecting pins a111.

[0040] The invention has a high-position platform in the power catwalk with a high-position storage rack, such as Figure 3 As shown, the high platform includes a middle connecting frame 105, and a left connecting frame 104 and a right connecting frame 106 are respectively arranged on both sides of the middle connecting frame 105. The left connecting frame 104 is fixed on the rear bracket 102, and the right connecting frame 106 is fixed on the front bracket 103; the left connecting frame 104, the middle connecting frame 105 and the right connecting frame 106 are arranged side by side and contact each other.

[0041] The two groups of high-position storage racks 3 are fixed on the left connecting rack 104 and the right connecting rack 106 respectively, and the two groups of turnover devices 4 are fixed on the middle connecting rack 105. A V-shaped groove 112 is arranged in the middle of the middle connecting rack 105, and V-shaped groove stop pins 402 are arranged on both sides of the V-shaped groove 112. The V-shaped groove 112 is arranged in the same direction as the turnover device 4). The turnover device 4 is composed of two groups of tiltable turnover beams 401, which are arranged on both sides of the V-shaped groove 112. One end of the turnover beam 401 is hinged on the storage rack rocker beam 301, and the other end is lifted by the hydraulic cylinder 405 and rotated around the hinge point to flip the pipe column 8 on the high-position storage rack 3 to the V-shaped groove 112 or flip the pipe column 8 in the V-shaped groove 112 to the high-position storage rack 3 on the opposite side.

[0042] The present invention has a lifting device in a power catwalk with a high-position storage rack, such as Figure 4As shown, the lifting device 2 includes a guide rail 201, a driving sprocket shaft 209 is provided at one end of the guide rail 201, and a passive sprocket shaft 211 is provided at the other end, a driving sprocket 208 is installed on one end of the driving sprocket shaft 209, and the other end is connected to a hydraulic motor assembly 218 installed on the guide rail 201, a passive sprocket 210 is installed on the passive sprocket shaft 211, and the driving sprocket 208 and the passive sprocket 210 are connected by a chain 212; the lifting device 2 is driven by the hydraulic motor assembly 218, and the chain 212 is used to pull up or lower the trolley assembly 202 and the hook assembly 204 to transport the pipe column 8. A trolley assembly 202 is provided on the guide rail 201 along the direction of the chain 212, and a drill-throwing bracket 213 is provided on the surface of the guide rail 201 opposite to the trolley assembly 202. The trolley assembly 202 and the drill-throwing bracket 213 are connected by a connecting pin c217. A connecting frame 205 is fixed on the top of the trolley assembly 202, and the connecting frame 205 is connected to the hook body assembly 204 through a supporting connecting rod 203. The hook body assembly 204 adopts a sleeve-type telescopic structure to meet the transportation operation needs of different sizes and different numbers of pipe strings 8 each time, and the inclination angle of the hook body assembly 204 can be adjusted according to the working conditions of transporting the pipe string 8 upward or transporting the pipe string 8 downward, so that the pipe string 8 can roll in and out freely; when transporting the pipe string 8 downward, the hook body assembly 204 needs to be installed with the drill-throwing bracket 213 and the connecting pin c217, and the drill-throwing bracket 213 transports the pipe string 8 from the high-level storage rack 3 to the hook body assembly 204 without adding a new action execution mechanism. The guide rail 201 is also provided with an upper limit stop 219 and an upper connecting ear seat 214 near the driving sprocket shaft 209, and the guide rail 201 is provided with a lower limit stop 207 and a lower connecting ear seat 215 near the driven sprocket shaft 211. The upper limit stop 219 and the lower limit stop 207 are fixed on the same plane as the trolley assembly 202, and the upper limit stop 219 and the lower limit stop 207 are used to limit the trolley assembly 202 to prevent the trolley assembly 202 from Slide out the guide rail 201; the upper connecting ear seat 214 and the lower connecting ear seat 215 are welded on the plane opposite to the trolley assembly 202, the upper connecting ear seat 214 is connected to the high-position platform through the connecting pin b216, and the lower connecting ear seat 215 is connected to the base body assembly 1 through the connecting pin b216; the guide rail 201 is also provided with a tensioning mechanism 206 at the passive sprocket 210, and the tensioning mechanism 206 has a tensioning effect on the chain 212.

[0043] The present invention has a high-position storage rack in the power catwalk, such as Figure 5As shown, the high-level storage rack 3 is composed of two pairs of storage rack seesaw beams 301 with adjustable inclination angles, which are arranged on both sides of the catwalk high-level platform. The high-level storage rack 3 is used to store emergency spare pipe strings 8 on the high-level platform. The high-level storage rack 3 includes a storage rack seesaw beam 301, and the storage rack seesaw beam 301 of the high-level storage rack 3 can be tilted inward or outward according to the working condition requirements of conveying the pipe string 8 upward or downward by the drilling tool. The center of the storage rack rocker beam 301 is connected to the positioning ear seat 302 through a connecting pin shaft d306. There are four positioning ear seats 302, which are respectively welded to the left connecting frame 104 and the right connecting frame 106; the upper surfaces of both ends of the storage rack rocker beam 301 are respectively installed with pipe column stop pins 305, and the storage rack rocker beam 301 has three through holes a near the pipe column stop pins 305. The left connecting frame 104 and the right connecting frame 106 are respectively welded with rotating ear seats 303 at the positions corresponding to the through holes a. The rotating ear seat 303 has a through hole b, and the through hole b is connected to the through hole a through a safety pin 304. There are eight safety pins 304; when the high-position storage rack 3 is in a tilted state, the safety pins 304 and the pipe column stop pins 305 need to be installed at both ends of the tilted storage rack rocker beam 301.

[0044] The invention has a power catwalk turning device with a high-position storage rack, such as Figure 6 As shown, each set of turning devices 4 includes two turning beams 401, and the two turning beams 401 are L-shaped. One end of each turning beam 401 is hinged to the storage rack rocker beam 301, and the other end is connected to the hydraulic cylinder 405 through the connecting pin e404. The hydraulic cylinder 405 is fixed to the middle connecting frame 105 through the cylinder support 403. The turning device 4 is a mechanism for realizing bidirectional transportation of the pipe column 8 from the V-shaped groove 112 of the catwalk to the left and right high-level storage racks 3.

[0045] Example 3

[0046] The present invention has a power catwalk with a high-position storage rack, such as Figure 1 , Figure 2As shown, it includes a base main body assembly 1, which is U-shaped, with a set of ladders 108 welded on one side of the base main body assembly 1, and a ramp assembly 5 set on the other side. A high-level platform is fixed between the two ends of the base main body assembly 1, and a hydraulic control unit 6 and a lifting winch 113 are set on the top of the high-level platform near one end of the ladder 108. A set of lifting devices 2 are respectively set on both sides of the high-level platform between the hydraulic control unit 6 and the ramp assembly 5, and a high-level storage rack 3 is set on the high-level platform near each set of lifting devices 2, and two sets of turning devices 4 are set between two sets of high-level storage racks 3. The hydraulic control unit 6 provides a power source for each mechanism of the power catwalk and realizes precise control between the actions of each mechanism. It is composed of hydraulic cylinders, motors, control consoles for controlling the actions of the mechanisms, and various valve groups; each set of action mechanisms of the power catwalk is provided with a hydraulic synchronization unit, such as a lifting device 2, a turning device 4, etc., to achieve the requirements of action synchronization with different precisions; the control console is provided with a hydraulic control valve group, which can realize the operation of all actions of the power catwalk.

[0047] The base body assembly 1 includes two groups of lower brackets 101, the two ends of one group of lower brackets 101 are respectively welded with a front bracket 103, and the two ends of the other group of lower brackets 101 are respectively welded with a rear bracket 102. The front bracket 103 and the rear bracket 102 are respectively connected to the bottom of the two ends of the high-position platform through connecting pins a111.

[0048] The invention has a high-position platform in the power catwalk with a high-position storage rack, such as Figure 3 As shown, the high platform includes a middle connecting frame 105, and a left connecting frame 104 and a right connecting frame 106 are respectively arranged on both sides of the middle connecting frame 105. The left connecting frame 104 is fixed on the rear bracket 102, and the right connecting frame 106 is fixed on the front bracket 103; the left connecting frame 104, the middle connecting frame 105 and the right connecting frame 106 are arranged side by side and contact each other.

[0049] The two groups of high-position storage racks 3 are fixed on the left connecting rack 104 and the right connecting rack 106 respectively, and the two groups of turnover devices 4 are fixed on the middle connecting rack 105. A V-shaped groove 112 is arranged in the middle of the middle connecting rack 105, and V-shaped groove stop pins 402 are arranged on both sides of the V-shaped groove 112. The V-shaped groove 112 is arranged in the same direction as the turnover device 4). The turnover device 4 is composed of two groups of tiltable turnover beams 401, which are arranged on both sides of the V-shaped groove 112. One end of the turnover beam 401 is hinged on the storage rack rocker beam 301, and the other end is lifted by the hydraulic cylinder 405 and rotated around the hinge point to flip the pipe column 8 on the high-position storage rack 3 to the V-shaped groove 112 or flip the pipe column 8 in the V-shaped groove 112 to the high-position storage rack 3 on the opposite side.

[0050] The present invention has a lifting device in a power catwalk with a high-position storage rack, such as Figure 4As shown, the lifting device 2 includes a guide rail 201, a driving sprocket shaft 209 is provided at one end of the guide rail 201, and a passive sprocket shaft 211 is provided at the other end, a driving sprocket 208 is installed on one end of the driving sprocket shaft 209, and the other end is connected to a hydraulic motor assembly 218 installed on the guide rail 201, a passive sprocket 210 is installed on the passive sprocket shaft 211, and the driving sprocket 208 and the passive sprocket 210 are connected by a chain 212; the lifting device 2 is driven by the hydraulic motor assembly 218, and the chain 212 is used to pull up or lower the trolley assembly 202 and the hook assembly 204 to transport the pipe column 8. A trolley assembly 202 is provided on the guide rail 201 along the direction of the chain 212, and a drill-throwing bracket 213 is provided on the surface of the guide rail 201 opposite to the trolley assembly 202. The trolley assembly 202 and the drill-throwing bracket 213 are connected by a connecting pin c217. A connecting frame 205 is fixed on the top of the trolley assembly 202, and the connecting frame 205 is connected to the hook body assembly 204 through a supporting connecting rod 203. The hook body assembly 204 adopts a sleeve-type telescopic structure to meet the transportation operation needs of different sizes and different numbers of pipe strings 8 each time, and the inclination angle of the hook body assembly 204 can be adjusted according to the working conditions of transporting the pipe string 8 upward or transporting the pipe string 8 downward, so that the pipe string 8 can roll in and out freely; when transporting the pipe string 8 downward, the hook body assembly 204 needs to be installed with the drill-throwing bracket 213 and the connecting pin c217, and the drill-throwing bracket 213 transports the pipe string 8 from the high-level storage rack 3 to the hook body assembly 204 without adding a new action execution mechanism. The guide rail 201 is also provided with an upper limit stop 219 and an upper connecting ear seat 214 near the driving sprocket shaft 209, and the guide rail 201 is provided with a lower limit stop 207 and a lower connecting ear seat 215 near the driven sprocket shaft 211. The upper limit stop 219 and the lower limit stop 207 are fixed on the same plane as the trolley assembly 202, and the upper limit stop 219 and the lower limit stop 207 are used to limit the trolley assembly 202 to prevent the trolley assembly 202 from Slide out the guide rail 201; the upper connecting ear seat 214 and the lower connecting ear seat 215 are welded on the plane opposite to the trolley assembly 202, the upper connecting ear seat 214 is connected to the high-position platform through the connecting pin b216, and the lower connecting ear seat 215 is connected to the base body assembly 1 through the connecting pin b216; the guide rail 201 is also provided with a tensioning mechanism 206 at the passive sprocket 210, and the tensioning mechanism 206 has a tensioning effect on the chain 212.

[0051] The present invention has a high-position storage rack in the power catwalk, such as Figure 5As shown, the high-level storage rack 3 is composed of two pairs of storage rack seesaw beams 301 with adjustable inclination angles, which are arranged on both sides of the catwalk high-level platform. The high-level storage rack 3 is used to store emergency spare pipe strings 8 on the high-level platform. The high-level storage rack 3 includes a storage rack seesaw beam 301, and the storage rack seesaw beam 301 of the high-level storage rack 3 can be tilted inward or outward according to the working condition requirements of conveying the pipe string 8 upward or downward by the drilling tool. The center of the storage rack rocker beam 301 is connected to the positioning ear seat 302 through a connecting pin shaft d306. There are four positioning ear seats 302, which are respectively welded to the left connecting frame 104 and the right connecting frame 106; the upper surfaces of both ends of the storage rack rocker beam 301 are respectively installed with pipe column stop pins 305, and the storage rack rocker beam 301 has three through holes a near the pipe column stop pins 305. The left connecting frame 104 and the right connecting frame 106 are respectively welded with rotating ear seats 303 at the positions corresponding to the through holes a. The rotating ear seat 303 has a through hole b, and the through hole b is connected to the through hole a through a safety pin 304. There are eight safety pins 304; when the high-position storage rack 3 is in a tilted state, the safety pins 304 and the pipe column stop pins 305 need to be installed at both ends of the tilted storage rack rocker beam 301.

[0052] The invention has a power catwalk turning device with a high-position storage rack, such as Figure 6 As shown, each set of turning devices 4 includes two turning beams 401, and the two turning beams 401 are L-shaped. One end of each turning beam 401 is hinged to the storage rack rocker beam 301, and the other end is connected to the hydraulic cylinder 405 through the connecting pin e404. The hydraulic cylinder 405 is fixed to the middle connecting frame 105 through the cylinder support 403. The turning device 4 is a mechanism for realizing bidirectional transportation of the pipe column 8 from the V-shaped groove 112 of the catwalk to the left and right high-level storage racks 3.

[0053] The present invention has a ramp assembly in a power catwalk with a high-position storage rack, such as Figure 7 As shown, the ramp assembly 5 includes a ramp outer section 501 and a ramp inner section 502, one end of the ramp outer section 501 is sleeved with one end of the ramp inner section 502, and the other end of the ramp outer section 501 is connected to the ramp ear seat 504 on the base body assembly 1 through a pin shaft; a telescopic hydraulic cylinder 505 is connected between the ramp outer section 501 and the ramp inner section 502 through a pin shaft, and the telescopic hydraulic cylinder 505 realizes the telescopic movement of the ramp inner section to adapt to different drilling platform heights; a flip hydraulic cylinder 506 is also arranged between the ramp outer section 501 and the base body assembly 1, and the flip hydraulic cylinder 506 realizes the automatic flipping of the ramp assembly 5 and adjusts the ramp angle; the fixed end of the flip hydraulic cylinder 506 is connected to the base body assembly 1 through a flip cylinder pin shaft 503, and the movable end of the flip hydraulic cylinder 506 is connected to the midpoint of the ramp outer section 501 through a pin shaft. The ramp assembly 5 connects the high-level platform of the power catwalk with the drilling platform 10.

[0054] A connecting rod group 107 is also provided at the bottom of one end of the base body assembly 1 close to the ramp assembly 5 .

[0055] A guardrail assembly 110 is fixed to the high platform near the ladder 108, and safety rope enclosures 109 are also provided on both sides of the high platform.

[0056] The power catwalk of the present invention has a high-position storage rack, and its working process is as follows:

[0057] Before work, the power catwalk of the present application is installed just above the drilling rig moving guide rail 11 and the wellhead Christmas tree group 12. The power catwalk of the present application is connected to the drilling rig 13 through the connecting rod group 107, and is connected to the drilling platform 9 through the ramp assembly 5. After the installation is completed, the hook assembly 204 of the lifting device 2 lifts the pipe column 8 on the ground pipe rack 7 to the catwalk high-level platform and stores it on the high-level storage rack 3; the pipe column 8 on the high-level storage rack 3 is flipped into the V-shaped groove 112 through the flipping device 4, and then the pipe column 8 is sent to the drilling platform 9 through the ramp assembly 5. At the same time, the pipe column 8 can also be reversely transported from the drilling platform 9 to the ground pipe rack 7, as follows:

[0058] 1. Transporting pipe string to drilling platform:

[0059] Before conveying the pipe string 8 to the drilling platform 9, set the high-position storage rack 3 to tilt inward, install the safety latch 304 and the pipe string stop pin 305 on the inner side of the storage rack; adjust the hook assembly 204 of the lifting device 2 to the upper drilling position tilt state, adjust the length of the hook assembly 204 according to the conveying size of the pipe string 8 and the number of single conveying, lower the lifting trolley assembly 202 to the lowest position, and keep the others in the standby position; place the pipe string 8 on the ground pipe rack 7 within the operating range of the hook assembly 204, and the lifting device 2 transports the first group of pipe strings upward to the power catwalk At the high-level platform, the pipe string 8 automatically rolls down to the high-level storage rack 3; after the first group of pipe strings leaves the hook assembly 204 of the lifting device 2, the trolley assembly 202 and the hook assembly 204 of the lifting device 2 descend to a low position and continue to convey the second group of pipe strings upward; the first group of pipe strings automatically rolls from the outside of the high-level storage rack 3 to the pipe string stop pin 305 on the inside of the high-level storage rack and stops; the lifting device 2 repeats conveying the third group, the fourth group, ... of pipe strings to the high-level storage rack 3 until the high-level storage rack 3 is full, and the lifting device 2 stops conveying pipe strings to this high-level storage rack 3.

[0060] The hydraulic cylinder 405 of the turning device 4 on the same side is lifted upward, and one end of the turning beam 401 lifts the innermost pipe of the first group of pipes, turns over the inner pipe stop pin 305 of the high-level storage rack 3, and automatically rolls to the V-shaped groove 112. After being blocked by the V-shaped groove stop pin 402, the hydraulic cylinder 405 of the turning device 4 falls, and the pipe is placed in the V-shaped groove 112; the drilling platform lifting winch 10 lifts the pipe 8 in the V-shaped groove 112 to the drilling platform 9, completing the operation of conveying the first drill rod of the first group of pipes to the drilling platform; then repeat step 4 to convey the second, third, fourth...

[0061] 2. Transporting pipe string to the ground:

[0062] Before conveying the pipe column 8 to the ground, the high-level storage rack 3 is set to tilt outward, and the safety latch 304 and the outer pipe column stop pin 305 are installed; the hook assembly 204 of the lifting device 2 is adjusted to the drill-throwing position, and the length of the hook assembly 204 is adjusted according to the pipe column conveying size and size, the lifting trolley assembly 202 is installed with the drill-throwing bracket 213, and it is lowered to the lowest position to wait, and the others are in the standby position; the drilling platform lifting winch 10 and the lifting winch 113 of the power catwalk body are used to pull the single pipe column of the drilling platform from the drilling platform 9 back to the V-groove 112 of the power catwalk; the hydraulic cylinder 405 of the opposite side turning device 4 is extended, and the turning beam 401 lifts the single pipe column in the V-groove 112, and the pipe column rolls out along the slope of the turning beam 401 to the pipe column stop pin 305 on the outside of the high-level storage rack 3 and stops, and the hydraulic cylinder 405 of the turning device 4 is retracted, and the turning beam 401 is reset.

[0063] Repeat the process of conveying two, three, four, ... single pipe strings to the high-level storage rack 3 until the high-level storage rack 3 is full, and the turning device 4 stops conveying pipe strings to this high-level storage rack 3; the trolley assembly 202 of the lifting device 2 moves upward to the high-level platform of the power catwalk, and the drill-throwing bracket 213 lifts the outermost pipe string of the high-level storage rack 3 upward, and the pipe string flips over the pipe string stop pin 305 on the outer side of the high-level storage rack 3 and rolls freely into the hook body assembly 204; the trolley assembly 202 of the lifting device 2 conveys the pipe string downward to the ground pipe rack 7, completing the operation of conveying the pipe string from the drilling platform 9 to the ground; then repeat the conveying of the second, third, fourth, ... pipes.

Claims

1. A powered catwalk with a high-level storage rack, characterized in that: The invention comprises a base body assembly (1), wherein the base body assembly (1) is U-shaped, a group of ladders (108) are welded on one side of the base body assembly (1), and a ramp assembly (5) is arranged on the other side, a high-level platform is fixed between the two ends of the base body assembly (1), a hydraulic control unit (6) and a lifting winch (113) are arranged on the top of the high-level platform near one end of the ladder (108), a group of lifting devices (2) are arranged on both sides of the high-level platform between the hydraulic control unit (6) and the ramp assembly (5), a high-level storage rack (3) is arranged on the high-level platform near each group of the lifting devices (2), and two groups of turning devices (4) are arranged between two groups of the high-level storage racks (3).

2. The powered catwalk with a high-position storage rack according to claim 1, characterized in that: The base body assembly (1) comprises two groups of lower brackets (101), the two ends of one group of the lower brackets (101) are respectively welded to the front brackets (103), and the two ends of the other group of the lower brackets (101) are respectively welded to the rear brackets (102), and the front brackets (103) and the rear brackets (102) are respectively connected to the bottom of the two ends of the high-position platform through connecting pins a (111).

3. The powered catwalk with a high-position storage rack according to claim 2, characterized in that: The high-position platform comprises a middle connecting frame (105), and a left connecting frame (104) and a right connecting frame (106) are respectively arranged on both sides of the middle connecting frame (105), the left connecting frame (104) is fixed on the rear bracket (102), and the right connecting frame (106) is fixed on the front bracket (103); the left connecting frame (104), the middle connecting frame (105) and the right connecting frame (106) are arranged side by side and contact each other.

4. The powered catwalk with a high-position storage rack according to claim 3, characterized in that: The two groups of high-position storage racks (3) are respectively fixed on the left connecting frame (104) and the right connecting frame (106), and the two groups of turning devices (4) are both fixed on the middle connecting frame (105). A V-shaped groove (112) is arranged in the middle of the middle connecting frame (105), and V-shaped groove stop pins (402) are arranged on both sides of the V-shaped groove (112). The V-shaped groove (112) and the turning device (4) are arranged in the same direction.

5. The powered catwalk with a high-position storage rack according to claim 4, characterized in that: The high-position storage rack (3) comprises a storage rack seesaw beam (301), the center of which is connected to a positioning ear seat (302) via a connecting pin shaft d (306), and there are four positioning ear seats (302), which are respectively welded to the left connecting frame (104) and the right connecting frame (106); the upper surfaces of both ends of the storage rack seesaw beam (301) are respectively installed with pipe column stop pins (305), and the storage rack seesaw beam (301) is respectively provided with three through holes a near the pipe column stop pins (305), and the left connecting frame (104) and the right connecting frame (106) are respectively welded with rotating ear seats (303) at positions corresponding to the through holes a, and the rotating ear seats (303) are provided with through holes b, and the through holes b are connected to the through holes a via safety pins (304), and there are eight safety pins (304).

6. The powered catwalk with a high-position storage rack according to claim 4, characterized in that: Each group of the turning devices (4) comprises two turning beams (401), the two turning beams (401) are L-shaped, one end of each turning beam (401) is hinged to the storage rack rocker beam (301), and the other end is connected to the hydraulic cylinder (405) through a connecting pin e (404), and the hydraulic cylinder (405) is fixed on the middle connecting frame (105) through a cylinder support (403).

7. The powered catwalk with a high-position storage rack according to claim 1, characterized in that: The lifting device (2) comprises a guide rail (201), a driving sprocket shaft (209) is arranged at one end of the guide rail (201), and a passive sprocket shaft (211) is arranged at the other end, a driving sprocket (208) is installed on one end of the driving sprocket shaft (209), and the other end is connected to a hydraulic motor assembly (218) installed on the guide rail (201), a passive sprocket (210) is installed on the passive sprocket shaft (211), and a chain is connected between the driving sprocket (208) and the passive sprocket (210). The guide rail (201) is connected with a chain (212); a trolley assembly (202) is arranged along the direction of the chain (212); a drill-throwing bracket (213) is arranged on the surface of the guide rail (201) opposite to the trolley assembly (202); the trolley assembly (202) and the drill-throwing bracket (213) are connected via a connecting pin c (217); a connecting frame (205) is fixed on the top of the trolley assembly (202); the connecting frame (205) is connected via a supporting connection The rod (203) is connected to the hook assembly (204), and the hook assembly (204) adopts a sleeve-type telescopic structure; the guide rail (201) is also provided with an upper limit (219) and an upper connecting ear seat (214) near the driving sprocket shaft (209), and the guide rail (201) is provided with a lower limit (207) and a lower connecting ear seat (215) near the driven sprocket shaft (211), and the upper limit (219) and the lower limit (207) are fixed to the trolley assembly. The upper connecting ear seat (214) and the lower connecting ear seat (215) are welded on the same plane as the trolley assembly (202); the upper connecting ear seat (214) and the lower connecting ear seat (215) are connected to the high-position platform via a connecting pin shaft b (216); and the lower connecting ear seat (215) is connected to the base body assembly (1) via a connecting pin shaft b (216); and the guide rail (201) is also provided with a tensioning mechanism (206) at the passive sprocket (210).

8. The powered catwalk with a high-position storage rack according to claim 1, characterized in that: The ramp assembly (5) comprises an outer ramp section (501) and an inner ramp section (502); one end of the outer ramp section (501) is sleeved inside one end of the inner ramp section (502), and the other end of the outer ramp section (501) is connected to a ramp ear seat (504) on the base body assembly (1) via a pin shaft; a telescopic hydraulic cylinder (505) is connected between the outer ramp section (501) and the inner ramp section (502) via a pin shaft; a tilting hydraulic cylinder (506) is also provided between the outer ramp section (501) and the base body assembly (1); a fixed end of the tilting hydraulic cylinder (506) is connected to the base body assembly (1) via a tilting cylinder pin shaft (503), and a movable end of the tilting hydraulic cylinder (506) is connected to the midpoint of the outer ramp section (501) via a pin shaft.

9. The powered catwalk with a high-position storage rack according to claim 1, characterized in that: A connecting rod group (107) is also provided at the bottom of one end of the base body assembly (1) close to the ramp assembly (5).

10. The powered catwalk with high-position storage rack according to claim 1, characterized in that: A guardrail assembly (110) is fixed to the high-level platform near the ladder (108), and safety rope enclosures (109) are also arranged on both sides of the high-level platform.

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