CN110552619B - Top drive rotary casing running device - Google Patents
Top drive rotary casing running device Download PDFInfo
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- CN110552619B CN110552619B CN201910853515.9A CN201910853515A CN110552619B CN 110552619 B CN110552619 B CN 110552619B CN 201910853515 A CN201910853515 A CN 201910853515A CN 110552619 B CN110552619 B CN 110552619B
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- hydraulic cylinder
- top drive
- seat shell
- main hydraulic
- casing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Abstract
The invention discloses a top drive rotary casing running device, which adopts a drill rod pup joint and a slip seat shell to form a rotary shaft, wherein the upper end of the rotary shaft is connected to a top drive mandrel. The outside of the drill rod short circuit is attached with a two-way main hydraulic cylinder sleeve through a thrust bearing, the slips in the slip seat shell are connected below the main hydraulic cylinder sleeve through the thrust bearing, the thrust rod and the like, the slips and the inner wall of the slip seat shell are matched through multiple synchronous conical surfaces, a limiting block is further embedded in the inner wall of the slip seat shell, and the slips and the limiting block are staggered and uniformly distributed. The upper end of the central pipe of the main hydraulic cylinder sleeve is fixed with a suspension arm support, two suspension arms are suspended on the suspension arm support, two auxiliary hydraulic cylinders are connected to the two suspension arms and the suspension arm support, and the lower end of each suspension arm is connected with an elevator. The invention can realize the quick extraction and installation of the casing, reliably clamp the casing, carry out casing upper buckling and rotary casing running through top drive rotation, circularly flush the borehole, and has the advantages of high automation degree, convenient operation, and quick and efficient casing running.
Description
Technical Field
The invention belongs to the technical field of drilling equipment for oil and gas field development, and particularly relates to a top drive rotary casing running device.
Background
The top drive casing running device is auxiliary equipment for running casing operation based on top drive drilling equipment, can realize quick installation of the equipment, quick extraction and upper buckle connection of a casing, running of a casing pipe column and circular running, can improve a casing running mode, reduce the casing running difficulty and save the casing running time.
At present, manufacturers for producing and using top drive casing running devices at home and abroad have more and various structures, and all realize casing running operation by driving a slip inner casing pipe or an outer casing pipe through pure mechanical drive and hydraulic auxiliary machinery, and the top drive casing running devices have the characteristics. Patent document CN104929521A discloses a top drive casing running device, which can be adapted to a wide range of casing sizes by rotating a top drive to cause slips to grip a casing and to make the casing thread up and run down. Patent document CN 104975810 a discloses a full mechanical external clamping type top drive casing running device, which can be reset/opened by a positive/negative rotation driving slip of a top drive, so as to loosen/clamp a casing, transmit torque and axial load, and run a casing string in a casing screwing-in, rotating or rotating cycle manner. However, when the two top-drive casing running devices clamp the casing, the casing cannot be reversely turned to be broken off, and meanwhile, the casing needs to be installed by other equipment, so that the casing running efficiency is influenced.
In addition, the structure and the principle of the top drive casing running device of Beijing petroleum machinery factory and Tesco company are similar, the top drive casing running device is driven by hydraulic auxiliary machinery, the automation degree of the top drive casing running devices of the two factories is high, the functions are complete, and the casing running efficiency is high, but when the top drive casing running device is used on site, the casing running device is easy to generate high temperature, and the efficient casing running operation of continuously using the casing running device on site is influenced.
In order to realize continuous and efficient casing running operation, a top drive casing running device with a better structure and more perfect performance is needed to realize quick installation of a casing, quick screwing-on of a clamping casing, rotary running-in and rotary circulating running-in of a clamping casing bearing casing pipe column, and simultaneously, casing unscrewing and casing running automation degree improvement can be realized.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a top drive rotary casing running device, which can realize rotary running and rotary circulating running of a pipe column, has high automation degree, is safe and reliable, reduces the risks of tripping and sticking a drill when meeting a resistance and improves the success rate of running in place in a complex well.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a rotatory casing running device is driven on top which characterized in that: the hydraulic pipe slip joint comprises a drill pipe short joint, a central pipe, a thrust bearing I, a thrust bearing II, a main hydraulic cylinder sleeve, a hydraulic cylinder joint, a sealing box, an upper pushing cylinder, a lower pushing cylinder, a thrust rod, a reset clamp spring, a slip seat shell, slips, a limiting block, an oil pipe coupler, an oil pipe collar, a rubber cylinder, an inserting head, a suspension arm support, an elevator, two suspension arms and two sets of auxiliary hydraulic cylinders, wherein the slip seat shell and the oil pipe coupler are respectively fixed on the outer surface and the inner surface of the lower end of the drill pipe short joint; the reset snap spring is arranged in a groove formed in the upper part of an inner circle of the slip, the limiting block is fixed in the slip seat shell and used for limiting the slip, and the oil pipe coupling, the rubber cylinder and the inserting head are sequentially connected to the lower end of the double oil pipe through threads; the central pipe is installed on a drill rod short connector through a thrust bearing I, the main hydraulic cylinder sleeve is installed on the central pipe, the hydraulic cylinder connector is fixed at the lower end of the main hydraulic cylinder sleeve, the sealing box is arranged between the main hydraulic cylinder sleeve and the central pipe, the main hydraulic cylinder sleeve and the sealing box form a main hydraulic cylinder; the thrust bearing II is arranged between the sealing box and the hydraulic cylinder joint, one end of the upper push cylinder is connected with the main hydraulic cylinder sleeve through the thrust bearing II, the other end of the upper push cylinder is fixedly connected with the lower push cylinder, one end of the thrust rod is fixedly connected with the lower push cylinder, and the other end of the thrust rod extends into the slip seat shell from the gap to be connected with the slip; the suspension arm support is installed on the central pipe and located above the main hydraulic cylinder sleeve, the two sets of auxiliary hydraulic cylinders are symmetrically fixed on two sides of the suspension arm support, the upper ends of the two sets of suspension arms are fixedly connected with the two sets of auxiliary hydraulic cylinders respectively, and the lower ends of the two sets of suspension arms are connected with the elevator.
The drill rod pup joint is provided with a limiting step and a threaded sleeve I, and the central pipe is fixed on the drill rod pup joint through the limiting step and the threaded sleeve I.
The sealing device is characterized in that a ring table is arranged on the central pipe, the sealing box is located below the ring table, an O-shaped sealing ring I is arranged between the upper end of the main hydraulic cylinder sleeve and the central pipe, and an O-shaped sealing ring II is arranged between the main hydraulic cylinder sleeve and the ring table.
An upper hydraulic port and a lower hydraulic port are formed in the main hydraulic cylinder sleeve, the upper hydraulic port is located above the ring table, and the lower hydraulic port is located between the ring table and the sealing box.
The slips and the limiting blocks are the same in quantity, and are uniformly distributed in the slip seat shell in a staggered mode.
The limiting block is fixed in the slip seat shell through a horn joint fixed at the lower end of the slip seat shell and a countersunk head screw fixed on the slip seat shell.
The crane boom support is characterized in that a threaded sleeve II is fixedly arranged on the central tube, and the crane boom support is arranged on the central tube through the threaded sleeve II.
The top drive rotary casing running device also comprises an anti-rotation support fixedly connected with the top drive and the suspension arm support respectively, the anti-rotation support is formed by welding a bottom plate, a folded rib plate and a square tube group, the bottom plate is a hollow U-shaped plate, and screw holes are formed in two sides of the bottom plate; the two square tube assemblies are vertically welded on the outer edge of the bottom plate at the bottom side through the bent rib plate, and a gap is reserved between the two square tube assemblies; the anti-rotation support is connected with the suspension arm support through the square tube.
And the suspension arm support is provided with a boss which is used for being clamped between the two square tube.
The invention has the advantages that:
1. according to the invention, the upper end of the drill rod short joint is fixedly connected with the lower end of the top drive mandrel, the anti-rotation support is connected with the lower end of the top drive shell, the square tube of the anti-rotation support is clamped on the boss of the suspension arm support of the rotary casing running device, so that the drill rod short joint, the slip seat shell, the clamped casing string and the like can rotate along with the top drive mandrel, the suspension arm support and the main hydraulic cylinder sleeve and the like do not rotate along with the top drive, and the rotary casing running is facilitated. When the device is used, the suspension arm support automatically extracts the sleeve from the tree hole and installs the sleeve in the pilot hole, the slip mechanism clamps the sleeve, the top drive rotates to carry out the upper buckle connection of the sleeve, the rubber cylinder seals to realize the sealing of the rotary casing running device and the casing string, so that the rotary running and the rotary circulating running of the pipe string are realized, the automation degree is high, the device is safe and reliable, the risks of tripping and sticking of the drill in a blockage manner are reduced, the success rate of running in place of a complex well is improved, and the benefit is obvious.
2. According to the invention, hydraulic oil is injected into the upper oil cavity of the auxiliary hydraulic cylinder to return oil in the lower oil cavity, so that the suspension arm can be pushed to rotate to extend outwards, and the sleeve can be extracted from the tree hole; hydraulic oil is injected into the lower oil cavity of the auxiliary hydraulic cylinder, so that the upper oil cavity returns oil, the suspension arm can be pushed to rotate and retract, the sleeve is installed at the position of the pilot hole, an additional auxiliary mechanism is not needed, and the quick installation of the sleeve can be realized.
3. According to the invention, hydraulic oil is injected into the oil cavity of the main hydraulic cylinder sleeve to enable the lower oil cavity to return oil, the slips can be pushed to retract downwards along the matched synchronous conical surface of the inner wall of the slip seat shell, the sleeve can be clamped, the clamping sleeve can be rotated by the top drive to be buckled with the well entering casing string, after the clamping sleeve is buckled, the top drive can directly extract the casing string to be put into the well, when the clamping sleeve is blocked, the top drive can rotate to put into the well entering casing string, the operation is convenient and fast, and the difficulty in casing setting.
4. According to the invention, when the slips clamp the casing, the rubber cylinder realizes the sealing of the rotary casing running device and the casing string, and when the casing string runs, the pump circulation can be started, so that the casing running difficulty is further reduced.
5. According to the invention, when the slips clamp the whole casing pipe and enter the well, the casing pipe column base casing slips and the top drive release the weight of the casing pipe string, hydraulic oil is injected into the lower oil cavity of the main hydraulic cylinder sleeve, the upper oil cavity returns oil, the slips are driven to move upwards along the matched synchronous conical surface of the inner wall of the slip base shell to be opened, the casing pipe is released, the top drive is lifted, and the rotary casing pipe setting device and the casing pipe are quickly and reliably separated.
6. The invention can realize the quick extraction and installation of the casing, reliably clamp the casing, carry out casing upper buckling and rotary casing running through top drive rotation, circularly flush the borehole, and has the advantages of high automation degree, convenient operation, and quick and efficient casing running.
7. The invention has simple structure, perfect function, convenient installation and operation, can meet various technical requirements of on-site casing pipe running, and has remarkable effect.
8. The invention can be widely applied to the casing operation in the well, only the shale gas horizontal well oil reservoir casing operation, tens of hundreds of wells exist each year, and the number of wells is increased along with the development of the shale gas. The use of 1 well can save the outlay of rent of other 20 ten thousand yuan, and 100 wells are 2000 ten thousand yuan, can also be popularized and used in other domestic oil and gas fields, and has wide application prospect.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
FIG. 3 is a front view of the anti-rotation bracket of the present invention.
FIG. 4 is a schematic top view of the anti-rotation bracket of the present invention.
Fig. 5 is a schematic view of the field installation structure of the present invention.
Fig. 6 is a sectional view taken along line B-B in fig. 5.
Labeled as: 1. the drill pipe pup joint, 2, screw sleeves I, 3, thrust bearings I, 4, a central pipe, 5, screw sleeves II, 6, O-shaped sealing rings I, 7, a main hydraulic cylinder sleeve, 8, O-shaped sealing rings II, 9, a sealing box, 10, thrust bearings II, 11, a hydraulic cylinder joint, 12, an upward pushing cylinder, 13, a downward pushing cylinder, 14, bolts I, 15, a thrust rod, 16, a reset snap spring, 17, a slip seat shell, 18, a slip, 19, a limiting block, 20, a horn joint, 21, a tubing duplex, 22, a tubing coupling, 23, a rubber cylinder, 24, an insertion head, 25, a boom support, 26, a screw sleeve III, 27, bolts II, 28, an auxiliary hydraulic cylinder, 29, bolts III, 30, a boom, 31, a countersunk head screw, 32, a hexagon screw, 33, a boom lower joint, 34, a rope clamp, 35, a hanging clamp, 36, a bottom plate, 37, a corrugated plate, 38, a rectangular pipe, 39, a top drive, 40 and a bolt IV, 41. and (4) a boss.
Detailed Description
The invention provides a top drive rotary casing running device which comprises a drill rod short circuit 1, a central pipe 4, a thrust bearing I3, a thrust bearing II 10, a main hydraulic cylinder sleeve 7, a hydraulic cylinder joint 11, a sealing box 9, an upper push cylinder 12, a lower push cylinder 13, a thrust rod 15, a reset snap spring 16, a slip seat shell 17, slips 18, a limiting block 19, an oil pipe double male 21, an oil pipe coupling 22, a rubber cylinder 23, an insertion head 24, a suspension arm support 25, a hanging clamp 35, two suspension arms 30 and two sets of auxiliary hydraulic cylinders 28, wherein the slip seat shell 17 and the oil pipe double male 21 are respectively fixed on the outer surface and the inner surface of the lower end of the drill rod short circuit 1, a gap is formed in the upper part of the slip seat shell 17, the slips 18 are installed in the slip seat shell 17, and the outer circle of the slips 18 is synchronously matched with the inner circle of the slip seat shell 17 through a. The reset snap spring 16 is arranged in a groove formed in the upper part of an inner circle of the slip 18, and the limiting block 19 is fixed in the slip seat shell 17 through a horn joint 20 fixed at the lower end of the slip seat shell 17 and a countersunk screw 31 fixed on the slip seat shell 17 and used for limiting the slip 18; the number of the slips 18 and the limiting blocks 19 is the same, and the slips 18 and the limiting blocks 19 are uniformly distributed in the slip seat shell 17 in a staggered mode. The tubing coupling 22, the rubber sleeve 23 and the insert head 24 are sequentially connected to the lower end of the tubing duplex 21 through threads. The center tube 4 is installed on the drill rod short circuit 1 through thrust bearing I3, be provided with spacing step and swivel nut I2 on the drill rod short circuit 1, the center tube 4 is fixed on drill rod short circuit 1 through spacing step and swivel nut I2. The main hydraulic cylinder sleeve 7 is installed on the central tube 4, the hydraulic cylinder joint 11 is fixed at the lower end of the main hydraulic cylinder sleeve 7, the seal box 9 is arranged between the main hydraulic cylinder sleeve 7 and the central tube 4, the main hydraulic cylinder sleeve 7 and the seal box 9 form a main hydraulic cylinder; the thrust bearing II 10 is arranged between the sealing box 9 and the hydraulic cylinder joint 11, one end of the upper push cylinder 12 is connected with the main hydraulic cylinder sleeve 7 through the thrust bearing II 10, the other end of the upper push cylinder is fixedly connected with the lower push cylinder 13, one end of the thrust rod 15 is fixedly connected with the lower push cylinder 13, and the other end of the thrust rod extends into the slip seat shell 17 from the gap and is connected with the slip 18. Further, be provided with the ring platform on the center tube 4, seal box 9 is located ring platform below, is provided with O type sealing washer I6 between the upper end of main hydraulic cylinder cover 7 and the center tube 4, is provided with O type sealing washer II 8 between main hydraulic cylinder cover 7 and the ring platform. An upper hydraulic port and a lower hydraulic port are formed in the main hydraulic cylinder sleeve 7, the upper hydraulic port is located above the ring table, and the lower hydraulic port is located between the ring table and the sealing box 9. The hydraulic lifting device is characterized in that a threaded sleeve II 5 is fixedly arranged on the central tube 4, the lifting arm support 25 is installed on the central tube 4 through the threaded sleeve II 5, the lifting arm support 25 is located above the main hydraulic cylinder sleeve 7, the two sets of auxiliary hydraulic cylinders 28 are symmetrically fixed on two sides of the lifting arm support 25, the auxiliary hydraulic cylinders 28 are provided with upper hydraulic ports and lower hydraulic ports, the upper ends of the two sets of lifting arms 30 are fixedly connected with the two sets of auxiliary hydraulic cylinders 28 respectively, and the lower ends of the two sets of lifting arms 30 are connected with the elevator 35.
The top drive rotary casing running device further comprises an anti-rotation support fixedly connected with the top drive 39 and the suspension arm support 25 respectively, the anti-rotation support is formed by assembling and welding a bottom plate 36, a folded rib plate 37 and a square tube 38, the bottom plate 36 is a hollow U-shaped plate, and screw holes are formed in two sides of the bottom plate; two square tube 38 are vertically welded on the outer edge of the bottom side of the bottom plate 36 shape through the folded rib plate 37, and a gap is arranged between the two square tube 38; the anti-rotation support is connected with the suspension arm support 25 through the square moment tubes 38, specifically, a boss 41 is arranged on the suspension arm support 25, and the boss 41 is used for being clamped between the two square moment tubes 38.
The upper end of the drill rod pup joint 1 is provided with drill rod threads and can be connected with a mandrel of the top drive 39; the lower end of the drill rod pup joint 1 is respectively connected with the slip seat shell 17 and the oil pipe duplex 21 through drill rod threads and oil pipe threads; the lower part of the outer circle of the drill rod pup joint 1 is provided with a limiting step, the upper part of the outer circle of the drill rod pup joint is provided with a common thread, and the central pipe 4 is installed outside the drill rod pup joint 1 through a thrust bearing I3 and fixed through a threaded sleeve I2. The main hydraulic cylinder sleeve 7 is arranged outside the central tube 4, a gap is arranged between the main hydraulic cylinder sleeve 7 and the lower part of the central tube 4, and the sealing box 9 is positioned in the gap. The central pipe 4, the main hydraulic cylinder sleeve 7 and the sealing box 9 form a main hydraulic cylinder which is in sealing fit with each other, and the upper part and the lower part of the main hydraulic cylinder sleeve 7 are respectively provided with an upper hydraulic port and a lower hydraulic port. And a thrust bearing II 10 is arranged between the main hydraulic cylinder sleeve 7 and the upper push cylinder 12, is connected through a hydraulic cylinder joint 11, and fixes a sealing box 9 between the central pipe 4 and the main hydraulic cylinder sleeve 7.
The lower end of the upper push cylinder 12 is connected with a lower push cylinder 13 through threads, and the lower end of the lower push cylinder 13 is connected with a slip 18 through a bolt I14 and a thrust rod 15. The upper portion of the slip seat shell 17 is provided with a gap, the upper end of the thrust rod 15 is located outside the slip seat shell 17, and the lower end of the thrust rod is located inside the slip seat shell 17 through the gap and connected with a slip 18. The slips 18 are three pieces and are positioned in the slip seat shell 17, and the outer circle of the slips 18 is synchronously matched with the inner circle of the slip seat shell 17 through a multi-conical surface. Stopper 19 embedding is installed on slip bowl casing 17 inner wall, and misplaces evenly distributed on slip bowl casing 17 inner wall with slips 18, stopper 19 passes through countersunk screw 31 and horn joint 20 to be fixed on slip bowl casing 17's inner wall. The upper part of the inner circle of the slip 18 is provided with a groove, and the reset clamp spring 16 is arranged in the groove. The tubing coupling 22, the rubber sleeve 23 and the insert head 24 are sequentially connected to the lower end of the tubing duplex 21 through threads.
The upper portion of the central tube 4 is externally connected with a threaded sleeve II 5 through threads, and the suspension arm support 25 is hollow and is arranged outside the central tube 4 and located above the threaded sleeve II 5. The suspension arm support 25 is provided with two support legs and two horizontal threaded shafts, the upper ends of the two suspension arms 30 are provided with circular rings, the side surface of the middle upper part is provided with a support lug, the suspension arms 30 are arranged on the horizontal threaded shafts of the suspension arm support 25 and are fixed by a threaded sleeve III 26, and the support lugs of the two suspension arms 30 and the support legs of the suspension arm support 25 are connected with two auxiliary hydraulic cylinders 28 through bolts II 27 and III 29. The lower end of the boom 30 is connected with an elevator 35 through a hexagon screw 32, a boom lower joint 33 and a rope clip 34.
The top drive rotary casing running device further comprises an anti-rotation support fixedly connected with the top drive 39 and the suspension arm support 25 respectively, the anti-rotation support is a welding assembly and formed by welding a bottom plate 36, a folded rib plate 37 and a square tube 38, the bottom plate 36 is a hollow U-shaped plate, screw holes are formed in two sides of the bottom plate 36, and the bottom plate 36 is fixedly connected with the top drive 39 through the screw holes and a bolt IV 40; two square tubes 38 are vertically assembled and welded on the outer edge of the U-shaped bottom side of the bottom plate 36 through the bent rib plate 37, and a gap is reserved between the two square tubes 38. A boss 41 is arranged on the outer circle of the suspension arm support 25, and when the drill rod pup joint 1 and the bottom plate 36 of the anti-rotation support are arranged on the top drive 39, the boss 41 on the outer circle of the suspension arm support 25 is just clamped between the two square tube 38.
The implementation principle of the invention is as follows: the anti-rotation support is fixedly connected with the top drive 39 through a bolt IV 40, the drill rod pup joint 1 is fixedly connected with a mandrel of the top drive 39, and an upper hydraulic pipeline is connected to hydraulic ports of the main hydraulic cylinder sleeve 7 and the auxiliary hydraulic cylinder 28. The upper hydraulic ports of the two auxiliary hydraulic cylinders 28 are pressed, the lower hydraulic ports of the auxiliary hydraulic cylinders 28 return oil, the suspension arm 30 rotates to the position of a tree hole where a sleeve is placed, the sleeve is buckled by the hanging clip 35 and lifted up to the top drive 39, the sleeve is lifted out of the tree hole and pressed on the lower hydraulic ports of the two auxiliary hydraulic cylinders 28, the upper hydraulic ports of the auxiliary hydraulic cylinders 28 return oil, the suspension arm 30 rotates to the vertical position, a male buckle at the lower end of the sleeve is placed in a coupling of a well casing string, the coupling at the upper end of the sleeve is inserted into the slip seat shell 17, and the coupling of the sleeve is positioned in a cavity in the slip seat shell 17 at the upper part of the slip 18. And (3) pressurizing a lower hydraulic port of the main hydraulic cylinder sleeve 7, returning oil to an upper hydraulic port of the main hydraulic cylinder sleeve 7, enabling the slips 18 to retract downwards along a matched conical surface of the slip seat shell 17, clamping the sleeve and stabilizing the pressure, rotating forwards to drive the top in a jacking mode 39, and clamping the sleeve and buckling the well casing string. The top drive 39 is then rotated down through the extraction string of the present invention and the wellbore can also be pumped around to flush the wellbore. In the later period, the elevator 35 is opened, the upper hydraulic ports of the two auxiliary hydraulic cylinders 28 are pressed, the lower hydraulic ports of the auxiliary hydraulic cylinders 28 return oil, and the suspension arm 30 rotates to the side face to enable the casing string to be put into the space. After the string is completely run into the well, the casing slips 18 are set and the top drive 39 releases the string weight. And (3) pressurizing the upper hydraulic port of the main hydraulic cylinder sleeve 7, returning oil to the lower hydraulic port of the main hydraulic cylinder sleeve 7, driving the slips 18 to move upwards to open and loosen the clamping of the sleeve, lifting the top drive 39, and then repeatedly running the sleeve in. After the casing is completely put into the well, the upper hydraulic port of the main hydraulic cylinder sleeve 7 and the lower hydraulic port of the auxiliary hydraulic cylinder 28 are pressed, so that the slips 18 go up to the top, and the suspension arm 30 is in a vertical position. The main hydraulic cylinder sleeve 7 and the auxiliary hydraulic cylinder 28 are fully decompressed, all hydraulic pipelines are removed, the anti-rotation support is removed firstly, and then the rotary lower sleeve device is removed.
Claims (9)
1. The utility model provides a rotatory casing running device is driven on top which characterized in that: comprises a drill rod short joint (1), a central pipe (4), a thrust bearing I (3), a thrust bearing II (10), a main hydraulic cylinder sleeve (7), a hydraulic cylinder joint (11), a sealing box (9), an upper push cylinder (12), a lower push cylinder (13), a thrust rod (15), a reset snap spring (16), a slip seat shell (17), slips (18), a limiting block (19), an oil pipe double male joint (21), an oil pipe coupling (22), a rubber cylinder (23), an insertion head (24), a suspension arm support (25), an elevator (35), two suspension arms (30) and two sets of auxiliary hydraulic cylinders (28), the slip seat shell (17) and the oil pipe double male connector (21) are respectively fixed on the outer surface and the inner surface of the lower end of the drill rod pup joint (1), the upper part of the slip seat shell (17) is provided with a gap, the slips (18) are arranged in the slip seat shell (17), the outer circle of the slip (18) is synchronously matched with the inner circle of the slip seat shell (17) through a multi-conical surface; the reset snap spring (16) is arranged in a groove formed in the upper part of an inner circle of the slip (18), the limiting block (19) is fixed in the slip seat shell (17) and used for limiting the slip (18), and the oil pipe coupling (22), the rubber cylinder (23) and the insertion head (24) are sequentially connected to the lower end of the oil pipe double male connector (21) through threads; the central pipe (4) is installed on the drill rod pup joint (1) through a thrust bearing I (3), the main hydraulic cylinder sleeve (7) is installed on the central pipe (4), the hydraulic cylinder joint (11) is fixed at the lower end of the main hydraulic cylinder sleeve (7), the sealing box (9) is arranged between the main hydraulic cylinder sleeve (7) and the central pipe (4), the main hydraulic cylinder sleeve (7) and the sealing box (9) form a main hydraulic cylinder; the thrust bearing II (10) is arranged between the sealing box (9) and the hydraulic cylinder joint (11), one end of the upper push cylinder (12) is connected with the main hydraulic cylinder sleeve (7) through the thrust bearing II (10), the other end of the upper push cylinder is fixedly connected with the lower push cylinder (13), one end of the thrust rod (15) is fixedly connected with the lower push cylinder (13), and the other end of the thrust rod extends into the slip seat shell (17) from the notch to be connected with the slip (18); the suspension arm support (25) is installed on the central pipe (4), the suspension arm support (25) is located above the main hydraulic cylinder sleeve (7), the two sets of auxiliary hydraulic cylinders (28) are symmetrically fixed on two sides of the suspension arm support (25), the upper ends of the two sets of suspension arms (30) are fixedly connected with the two sets of auxiliary hydraulic cylinders (28) respectively, and the lower ends of the two sets of suspension arms (30) are connected with the elevator (35).
2. A top drive rotary casing running apparatus as claimed in claim 1, wherein: be provided with spacing step and swivel nut I (2) on drilling rod short circuit (1), center tube (4) are fixed on drilling rod short circuit (1) through spacing step and swivel nut I (2).
3. A top drive rotary casing running apparatus as claimed in claim 1, wherein: be provided with the ring platform on center tube (4), seal box (9) are located ring platform below, are provided with O type sealing washer I (6) between the upper end of main hydraulic cylinder cover (7) and center tube (4), are provided with O type sealing washer II (8) between main hydraulic cylinder cover (7) and the ring platform.
4. A top drive rotary casing running apparatus as claimed in claim 3, wherein: an upper hydraulic port and a lower hydraulic port are formed in the main hydraulic cylinder sleeve (7), the upper hydraulic port is located above the ring table, and the lower hydraulic port is located between the ring table and the sealing box (9).
5. A top drive rotary casing running apparatus as claimed in claim 1, wherein: the quantity of the slips (18) and the limiting blocks (19) is the same, and the slips (18) and the limiting blocks (19) are uniformly distributed in the slip seat shell (17) in a staggered mode.
6. A top drive rotary casing running apparatus as claimed in claim 1, wherein: the limiting block (19) is fixed in the slip seat shell (17) through a horn joint (20) fixed at the lower end of the slip seat shell (17) and a countersunk head screw (31) fixed on the slip seat shell (17).
7. A top drive rotary casing running apparatus as claimed in claim 1, wherein: the crane boom support is characterized in that a threaded sleeve II (5) is fixedly arranged on the central tube (4), and the crane boom support (25) is installed on the central tube (4) through the threaded sleeve II (5).
8. A top drive rotary casing running arrangement according to any one of claims 1 to 7, wherein: the top drive rotary casing running device further comprises an anti-rotation support fixedly connected with the top drive (39) and the suspension arm support (25) respectively, the anti-rotation support is formed by assembling and welding a bottom plate (36), a rib folding plate (37) and a square tube (38), the bottom plate (36) is a hollow U-shaped plate, and screw holes are formed in two sides of the bottom plate; two square tube (38) are vertically assembled and welded on the outer edge of the bottom side of the bottom plate (36) shape through the folding rib plate (37), and a gap is arranged between the two square tube (38); the anti-rotation support is connected with the suspension arm support (25) through a square moment pipe (38).
9. A top drive rotary casing running apparatus as claimed in claim 8, wherein: and a boss (41) used for being clamped between the two square tube (38) is arranged on the suspension arm support (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910853515.9A CN110552619B (en) | 2019-09-10 | 2019-09-10 | Top drive rotary casing running device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910853515.9A CN110552619B (en) | 2019-09-10 | 2019-09-10 | Top drive rotary casing running device |
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| CN110552619A CN110552619A (en) | 2019-12-10 |
| CN110552619B true CN110552619B (en) | 2021-05-18 |
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| CN201910853515.9A Active CN110552619B (en) | 2019-09-10 | 2019-09-10 | Top drive rotary casing running device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110939390B (en) * | 2019-12-22 | 2021-11-30 | 黑龙江北方双佳钻采机具有限责任公司 | Connecting slip mechanism of top drive casing running device convenient to replace |
| CN111764846B (en) * | 2020-06-08 | 2021-08-10 | 西南石油大学 | Rotary casing running device matched with electric top drive and using method thereof |
| CN112627735A (en) * | 2020-11-24 | 2021-04-09 | 中国石油集团渤海钻探工程有限公司 | Top drive rotation casing pipe equipment prevents swing arm rotary mechanism down |
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