Disclosure of Invention
The invention provides a full-hydraulic air-water dual-purpose multifunctional crawler drilling machine, overcomes the defects of the prior art, and can effectively solve the problems that the existing drilling machine cannot drill a well due to insufficient water source and the straight well drilling machine cannot complete inclined well drilling operation.
The technical scheme of the invention is realized by the following measures: a full hydraulic air-water dual-purpose multifunctional crawler drill comprises a frame, a tower frame, a drilling part, a derrick lifting oil cylinder, a support rod, a support seat, a power part, a hydraulic system, a fluid injection mechanism and a winch, wherein the lower part of the tower frame is hinged on the frame; the frame is provided with a fluid injection mechanism, the fluid injection mechanism comprises an air compressor and a slurry pump, and an air outlet of the air compressor and a liquid outlet of the slurry pump are both communicated with the drilling part through pipelines; a winch is arranged on the tower frame, and a hoisting device capable of hoisting the drilling tool is arranged on the winch; the output end of the power part is connected with the input end of the hydraulic system, and the drilling part, the derrick lifting oil cylinder, the fluid injection mechanism and the winch are all connected with the output end of the hydraulic system.
The following is further optimization or/and improvement of the technical scheme of the invention:
the well drilling part can comprise a sliding frame, an upper hydraulic motor, an upper power head, a lower hydraulic motor, a lower power head, a floating sleeve, a floating pipe, a drill rod joint, an inner drill rod, an inner drill bit, a sleeve joint, an outer sleeve, a sleeve drill bit, a first clamp, a second clamp and a third clamp, wherein the sliding frame capable of sliding along the tower frame is arranged on the tower frame, the sliding frame is provided with the upper hydraulic motor, the upper power head, the lower hydraulic motor and the lower power head, an output shaft of the upper hydraulic motor is fixedly installed and connected with an input shaft of the upper power head, the upper power head is provided with the drill rod joint, the lower end of the drill rod joint is fixedly installed with the upper end of the inner drill rod, and the lower end of the inner drill rod; the output shaft of the lower hydraulic motor is fixedly installed together with the upper end of the floating pipe, the outer side of the lower part of the floating pipe is provided with a floating sleeve, the outer side of the lower end of the floating pipe is provided with a limiting outer ring platform, the inner side of the upper end of the floating sleeve corresponding to the position above the limiting outer ring platform is provided with a limiting inner ring platform, the outer side of the lower end of the floating pipe is connected with the inner side of the upper end of the floating sleeve through key transmission, the lower end of the floating sleeve is fixedly installed together with the upper end of a sleeve joint sleeved on the outer side of a drill rod joint, the lower end of the sleeve joint is fixedly installed together with the upper end of an outer sleeve sleeved on the outer side; the lower part of the tower is sequentially provided with a first clamp holder, a second clamp holder and a third clamp holder from top to bottom, clamp holder oil cylinders are arranged on the first clamp holder, the second clamp holder and the third clamp holder, and shackle oil cylinders are arranged on the second clamp holder.
The device also comprises a walking part and an auxiliary part, wherein the walking part comprises a crawler chassis, a front side motor and a rear side motor; the auxiliary part includes hydraulic leg, pushes away shovel and water injection pump, and the frame lower part is equipped with hydraulic leg, and the frame rear side articulates there is the shovel that pushes away, pushes away and is equipped with the ability drive between shovel and the frame and pushes away shovel pivoted and pushes away the shovel hydro-cylinder, is equipped with the water injection pump on the frame, and the delivery port of water injection pump, the gas outlet of air compressor machine and the liquid outlet of slush pump all communicate through pipeline and tool joint.
The power part comprises an engine and a transfer case, and an output shaft of the engine is connected with an input end of the transfer case; the hydraulic system comprises a first variable pump, a second variable pump, a third variable pump, a first gear pump and a second gear pump, a first output end of the transfer case is respectively connected with the first variable pump, the first gear pump and the second gear pump, a first hydraulic branch is arranged on the first variable pump, a front side motor and an upper hydraulic motor are connected to the first hydraulic branch, a second hydraulic branch is arranged on the first gear pump, a gripper oil cylinder, a shackle oil cylinder, a moving oil cylinder, a side shifting oil cylinder and a water injection pump are connected to the second hydraulic branch, a third hydraulic branch is arranged on the second gear pump, and a derrick lifting oil cylinder, a hydraulic support leg, a push shovel oil cylinder and a winch are connected to the third hydraulic branch; the second output end of the transfer case is connected with a second variable pump, a fourth hydraulic branch is arranged on the second variable pump, and a fluid injection mechanism and a drilling tool lifting oil cylinder are connected to the fourth hydraulic branch; the third output end of the transfer case is connected with a third variable pump, a fifth hydraulic branch is arranged on the third variable pump, and a rear side motor and a lower hydraulic motor are connected to the fifth hydraulic branch.
The sliding frame can comprise a longitudinal sliding frame, a mounting plate, a transverse sliding frame, a sliding rail, a height adjusting frame, a side-shifting oil cylinder and a shifting oil cylinder, wherein the longitudinal sliding frame capable of sliding up and down along the tower frame is arranged on the tower frame, the mounting plate is arranged on the front side of the longitudinal sliding frame, the sliding rail in the horizontal direction is arranged on the front side of the mounting plate, the right end of the sliding rail is positioned on the right side of the mounting plate, the transverse sliding frame capable of moving left and right along the sliding rail is arranged on the front side of the mounting plate, the left end of the side-shifting oil cylinder is fixedly mounted with the left part of the mounting plate, a side-shifting piston rod; the upper part of the front side of the transverse sliding frame is provided with a height adjusting frame which can move up and down along the front side of the transverse sliding frame, the left side and the right side of the front side of the transverse sliding frame are provided with two moving oil cylinders at intervals, the lower ends of the moving oil cylinders are respectively installed with the corresponding positions of the front side of the transverse sliding frame, the moving oil cylinders are internally provided with moving piston rods which can extend upwards, and the upper ends of the moving piston rods are respectively installed with the corresponding positions; an upper power head is fixedly arranged on the front side of the height adjusting frame, and a lower power head is fixedly arranged on the lower part of the front side of the transverse sliding frame; the movable oil cylinder and the side-moving oil cylinder are both connected to the second hydraulic branch.
The well drilling part can also comprise a lifting mechanism, the lifting mechanism comprises a drilling tool lifting oil cylinder, a front fixed chain wheel, a rear fixed chain wheel, a lower fixed chain wheel, a lifting chain, a descending chain and a chain wheel component, the chain wheel component comprises a first movable chain wheel, a second movable chain wheel and a wheel carrier, a sliding cavity is arranged in the middle of the tower, the drilling tool lifting oil cylinder is fixedly arranged on the front side of the tower corresponding to the position between the longitudinal sliding frame and the tower, a lifting piston rod capable of extending downwards is arranged in the drilling tool lifting oil cylinder, the lower end of the lifting piston rod is fixedly provided with the wheel carrier, the upper part of the wheel carrier is provided with the first movable chain wheel, the lower part of the wheel carrier is provided with the second movable chain wheel, the front fixed chain wheel and the rear fixed chain wheel are arranged at intervals in the front and rear direction at the upper end of the tower, the first end of the lifting chain is fixedly arranged together with the upper, the first end of the descending chain is fixedly installed with the lower end of the longitudinal sliding frame, and the second end of the descending chain sequentially bypasses the lower fixed chain wheel and the second movable chain wheel and is fixedly installed at the lower end of the tower; and the drilling tool lifting oil cylinder is connected to the fourth hydraulic branch.
The wheel carrier can comprise a mounting shell, a connecting cylinder, an upper wheel shaft, a lower wheel shaft, a left righting device and a right righting device, wherein a vertically through mounting cavity is arranged in the mounting shell, the inner side of the upper end of the mounting shell is fixedly provided with the connecting cylinder, the upper end of the connecting cylinder is positioned above the connecting cylinder, and the inner side of the connecting cylinder is fixedly mounted with the outer side of the lower end of the lifting piston rod; an upper wheel shaft and a lower wheel shaft are fixedly arranged on the inner side of the mounting shell at intervals up and down, the upper wheel shaft and the lower wheel shaft are arranged in the left-right direction, a first movable chain wheel is sleeved on the outer side of the upper wheel shaft, and a second movable chain wheel is sleeved on the outer side of the lower wheel shaft corresponding to the position below the first movable chain wheel; the left centering device comprises a left centering seat, a left wheel shaft, a left bearing and a left roller sleeve, wherein the left centering seat is fixedly installed in the center of the left side of the wheel carrier, the center of the left side of the left centering seat is fixedly installed with the right end of the left wheel shaft, a left outer ring groove is formed in the outer side of the left end of the left wheel shaft, the left bearing is arranged in the left outer ring groove, and the left roller sleeve with a right opening is sleeved on the outer side of the left bearing; the right centering device comprises a right centering seat, a right wheel shaft, a right bearing and a right roller sleeve, the right centering seat is fixedly arranged in the center of the right side of the wheel carrier, the center of the right side of the right centering seat is fixedly arranged with the left end of the right wheel shaft, a right outer ring groove is arranged on the outer side of the right end of the right wheel shaft, the right bearing is arranged in the right outer ring groove, and the right roller sleeve with a left opening is sleeved on the outer side of the right bearing; the inner side of the left part of the tower corresponding to the left roller sleeve is provided with a left righting groove arranged in the vertical direction, the left roller sleeve is positioned in the left righting groove, the inner side of the right part of the tower corresponding to the right roller sleeve is provided with a right righting groove arranged in the vertical direction, and the right roller sleeve is positioned in the right righting groove.
The longitudinal sliding frame can comprise a mounting side plate, a left sliding plate, a right sliding plate, a left convex rail, a left front guide wheel, a left rear guide wheel, a right convex rail, a right front guide wheel and a right rear guide wheel, wherein the left convex rail arranged in the vertical direction is arranged on the outer side of the left part of the tower frame; the pylon right part outside that corresponds left protruding rail position is equipped with the right protruding track that is vertical direction and arranges, installation curb plate rear side right-hand member fixed mounting has the right slide plate that is located right protruding rail right side, interval distribution has two at least right front guide wheels about the right slide plate left side that corresponds right protruding rail the place ahead position, interval distribution has two at least right back guide wheels about the right slide plate left side that corresponds right protruding rail rear position, the pivot of right front guide wheel and right back guide wheel all is left right direction, the rear side of right front guide wheel all corresponds the position with right protruding rail front side and contacts, the front side of right back guide wheel all corresponds the position with right protruding rail rear side and contacts.
The device can also comprise an inner and outer sleeve hoisting device, the inner and outer sleeve hoisting device comprises a hoisting chain, a hoisting fixed chain wheel, a hoisting hook, a connecting rod, an upper mounting ring, a first chain, a hoisting ring, a hoop, a handle, a lower mounting ring, a second chain, a third chain, an outer sleeve hoisting hook, a fork arm and a fork body, clamping grooves are symmetrically formed in the left and right sides of the lower part of the inner drill rod, an upper mounting ring is fixedly mounted at the upper end of the connecting rod, the upper mounting ring is fixedly mounted with the lower end of the first chain, the upper end of the first chain is fixedly mounted with the hoisting ring, the left side of the upper part of the connecting rod is fixedly mounted with the right end of the hoop, a vertically through sleeving cavity is formed in the middle of the hoop, the right side of the lower part of the connecting rod is fixedly mounted with the handle, a lower mounting ring is fixedly mounted at the lower end of the connecting rod, the lower mounting ring is respectively fixedly mounted with the upper end of the second chain and the upper end of the third chain, the lower end of the second chain is fixedly mounted with the outer sleeve hoisting hook, the lower end of the third chain is fixedly mounted with the upper end of the fork arm, the lower end of the fork arm, the fork body which the clamping grooves can be clamped into a L-shaped lifting.
The above-mentioned scummer still can include, the scummer includes a slagging-off section of thick bamboo and row's sediment pipe, bushing joint upper portion outside distributes along the circumference has at least one interior row's sediment hole that link up inside and outside, bushing joint outside cover that corresponds interior row's sediment hole position is equipped with the slagging-off section of thick bamboo, the inboard fixed mounting upper seal ring platform in slagging-off section of thick bamboo upper end, the inboard fixed mounting that corresponds the bushing joint outside of upper seal ring platform is in the same place with bushing joint outside corresponding position fixed mounting, the inboard fixed mounting lower seal ring platform of lower extreme fixed mounting, the inboard fixed mounting that corresponds the bushing joint outside with the lower seal ring platform is in the same place, the outer row's sediment hole that link up inside and outside the middle part outside of slagging-.
The outer side of the lower end of the floating pipe can be connected with the inner side of the upper end of the floating sleeve through a spline in a transmission way.
The above-mentioned still can include supporting component, supporting component includes the upper nut, the lower nut, support lead screw, backup pad and support tooth, the lower terminal surface of pylon is equipped with two at least mounting holes that link up from top to bottom at the interval from left to right, all be equipped with support lead screw in every mounting hole, support lead screw upper portion is equipped with the upper nut of lower end seat terminal surface under the pylon, support lead screw lower part is equipped with the lower nut that the upper end supported terminal surface under the pylon, the pylon below is equipped with the backup pad, support lead screw lower extreme all corresponds position fixed mounting with the backup pad upper end together, the lower terminal surface fixed mounting of backup pad has a support tooth.
The support rod can comprise a support outer barrel and a support inner rod, the support inner rod with the upper end positioned above the support outer barrel is sleeved in the support outer barrel, the lower end of the support outer barrel is hinged with the corresponding position of the frame, and the upper end of the support inner rod is detachably and fixedly installed with the support seat.
The invention has reasonable and compact structure and convenient use, and realizes the completion of well drilling under the condition of insufficient water source by arranging the air compressor and the water injection pump; the mud pump is arranged, so that drilling is completed under the condition of sufficient water source; an air compressor or a slurry pump is connected to the second hydraulic branch, so that the air-water dual-purpose drilling operation is met; the passing capacity of the complex terrain is enhanced by arranging the crawler chassis; by arranging the supporting rod, the tower can be inclined in a front-to-back shape, so that the drilling operation of the inclined shaft is realized; the spline is arranged between the floating sleeve and the floating pipe which are sleeved together, and the screw thread at the upper end of the outer sleeve and the screw thread at the lower end of the sleeve joint are protected under the condition that the transmission of an output shaft of the hydraulic motor and the sleeve joint is not influenced; the upper fixed chain wheel, the first movable chain wheel and the lifting chain are matched with the drilling tool lifting oil cylinder, so that the ascending efficiency of the sliding frame is enhanced; the lower fixed chain wheel, the second movable chain wheel and the descending chain are matched with the drilling tool lifting oil cylinder, so that the descending efficiency of the sliding frame is enhanced; a single lifting piston rod is arranged in a single-piston drilling tool lifting oil cylinder, so that better lifting force is provided for the lifting piston rod; the inner drill rod and the outer sleeve on the derrick of the casing drilling machine can be conveniently assembled and disassembled by using the inner and outer sleeve hoisting device, and the inner and outer sleeve hoisting device has the characteristics of high efficiency, good passing performance and simple structure.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in attached figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, the full hydraulic air-water dual-purpose multifunctional crawler drill comprises a frame, a tower frame 1, a drilling part, a derrick lifting cylinder 9, a support rod 62, a support seat 63, a power part, a hydraulic system, a fluid injection mechanism 59 and a winch 36, wherein the lower part of the tower frame 1 is hinged on the frame, the drilling part is arranged on the tower frame 1, the derrick lifting cylinder 9 capable of driving the tower frame 1 to rotate is arranged between the frame and the tower frame 1, the lower end of the derrick lifting cylinder 9 is hinged with the corresponding position of the frame, a derrick piston rod capable of extending upwards is arranged in the derrick lifting cylinder 9, the upper end of the derrick piston rod is hinged with the corresponding position of the rear side of the tower frame 1, the support rod 62 is arranged between the frame corresponding to the rear position of the derrick lifting cylinder, the upper part of the tower frame 1 is fixedly provided with a supporting seat 63, and the upper end of the supporting rod 62 and the supporting seat 63 are detachably and fixedly arranged together; the frame is provided with a fluid injection mechanism 59, the fluid injection mechanism 59 comprises an air compressor and a slurry pump, and an air outlet of the air compressor and a liquid outlet of the slurry pump are both communicated with the drilling part through pipelines; a winch 36 is arranged on the tower frame 1, and a hoisting device capable of hoisting a drilling tool is arranged on the winch 36; the output end of the power part is connected with the input end of the hydraulic system, and the drilling part, the derrick lifting cylinder 9, the fluid injection mechanism 59 and the winch 36 are all connected with the output end of the hydraulic system. In the using process, the air compressor is arranged, so that drilling cuttings in a well are discharged through compressed air under the condition of insufficient water source, and drilling is completed; by arranging the mud pump, drilling cuttings in the well are discharged through liquid under the condition of sufficient water source, and drilling is completed; by arranging the support rod 62, the tower frame 1 can be inclined in a front-to-back manner, and the drilling operation of the inclined shaft is realized.
The full-hydraulic air-water dual-purpose multifunctional crawler drill can be further optimized or/and improved according to actual requirements:
as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, the drilling section includes a sliding frame, an upper hydraulic motor 2, an upper power head 3, a lower hydraulic motor 4, a lower power head 5, the floating type drilling machine comprises a floating sleeve 6, a floating pipe 7, a drill rod joint 41, an inner drill rod 42, an inner drill bit 43, a sleeve pipe joint 44, an outer sleeve 45, a sleeve pipe drill bit 46, a first clamp 38, a second clamp 39 and a third clamp 40, wherein a sliding frame capable of sliding along the tower frame 1 is arranged on the tower frame 1, an upper hydraulic motor 2, an upper power head 3, a lower hydraulic motor 4 and a lower power head 5 are arranged on the sliding frame, an output shaft of the upper hydraulic motor 2 is fixedly installed and connected with an input shaft of the upper power head 3, the drill rod joint 41 is installed on the upper power head 3, the lower end of the drill rod joint 41 is fixedly installed with the upper end of the inner drill rod 42, and the lower end of the; the output shaft of the lower hydraulic motor 4 is fixedly installed with the upper end of a floating tube 7, the outer side of the lower part of the floating tube 7 is provided with a floating sleeve 6, the outer side of the lower end of the floating tube 7 is provided with a limiting outer ring platform 10, the inner side of the upper end of the floating sleeve 6 corresponding to the position above the limiting outer ring platform 10 is provided with a limiting inner ring platform 11, the outer side of the lower end of the floating tube 7 is connected with the inner side of the upper end of the floating sleeve 6 through key transmission, the lower end of the floating sleeve 6 is fixedly installed with the upper end of a sleeve joint 44 sleeved outside a drill rod joint 41, the lower end of the sleeve joint 44 is fixedly installed with the upper end of an outer sleeve 45 sleeved outside an inner drill rod 42, the lower end of the outer sleeve 45 is fixedly; the lower part of the tower frame 1 is sequentially provided with a first clamp 38, a second clamp 39 and a third clamp 40 from top to bottom, clamp oil cylinders 60 are arranged on the first clamp 38, the second clamp 39 and the third clamp 40, and a shackle oil cylinder 61 is arranged on the second clamp 39.
According to the requirement, the upper hydraulic motor 2 is a cycloid motor, and the type of the cycloid motor can be J6K 390; the lower hydraulic motor 4 is implemented by two gerotor motors, which may be BM1250 in type. In the drilling operation using the present invention, the inner drill rod 42 and the outer casing 45 are continuously lowered into the well, so that the screw thread between the drill rod joint 41 and the inner drill rod 42 and the screw thread between the casing joint 44 and the outer casing 45 are continuously removed, and the inner drill rod 42 and the outer casing 45 are continuously lowered. In the drilling process, the underground resistance and the tension are large, and the floating sleeve 6 and the floating pipe 7 which are connected in a key mode are arranged, so that a space which floats up and down is formed between the floating sleeve 6 and the floating pipe 7, and the situation that an external drilling tool is directly connected with a lower power head 5 and a connecting screw thread between the external drilling tool and the lower power head 5 is damaged under the condition of large underground resistance and tension is avoided; in addition, when the inner drill rod 42 and the outer sleeve 45 which are sleeved together are continuously installed and lowered, the power head 5 needs to be lowered down to enable the screw thread at the lower end of the sleeve joint 44 to be aligned with the screw thread at the upper end of the outer sleeve 45, and in the buckling process, as the floating sleeve 6 and the floating tube 7 have a space floating up and down, the lower end of the sleeve joint 44 and the upper end of the outer sleeve 45 are prevented from directly colliding, and the connecting screw thread between the sleeve joint 44 and the outer sleeve 45 is prevented from being damaged; the upper end screw thread of the outer sleeve 45 and the lower end screw thread of the sleeve joint 44 are protected by connecting the floating sleeve 6 and the floating pipe 7 which are sleeved together by adopting a key under the transmission of an output shaft of the hydraulic motor 4 and the sleeve joint 44 without influencing; the first clamp 38, the second clamp 39 and the third clamp 40 are arranged to facilitate continuous mounting and dismounting of the inner drill rod 42 and the outer sleeve 45 which are sleeved together.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, the crawler chassis further comprises a walking part and an auxiliary part, wherein the walking part comprises a crawler chassis 8, a front motor 72 and a rear motor 73, the crawler chassis 8 is fixedly mounted at the lower part of the frame, and the front motor 72 and the rear motor 73 are arranged on the crawler chassis 8; the auxiliary part comprises a hydraulic supporting leg 37, a push shovel 64 and a water injection pump 71, the hydraulic supporting leg 37 is arranged on the lower portion of the frame, the push shovel 64 is hinged to the rear side of the frame, a push shovel oil cylinder 65 capable of driving the push shovel 64 to rotate is arranged between the push shovel 64 and the frame, the water injection pump 71 is arranged on the frame, and a water outlet of the water injection pump 71, a gas outlet of the air compressor and a liquid outlet of the mud pump are all communicated with the drill rod connector 41 through pipelines.
In the use process, the caterpillar base plate 8 is arranged, so that the passing capacity of the complex terrain is enhanced; the hydraulic support legs 37 are arranged, so that a supporting effect is achieved between the chassis and the ground; through setting up water injection pump 71, make when using the air compressor machine, interior drill bit 43 is at the well drilling in-process, to tool joint 41, inject a small amount of water in interior drill rod 42 and the interior drill bit 43, can not only play cooling and lubricated effect, can conveniently with the well interior sand, the well drilling sediment such as soil and mud is discharged, and can also cooperate the air compressor machine to accomplish the rig operation under the not enough condition in water source, need last a large amount of water injection in to tool joint 41, interior drill rod 42 and interior drill bit 43 when avoiding using the slush pump.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the power part comprises an engine 47 and a transfer case 48, and an output shaft of the engine 47 is connected with an input end of the transfer case 48; the hydraulic system comprises a first variable pump 49, a second variable pump 50, a third variable pump 51, a first gear pump 52 and a second gear pump 53, a first output end of the transfer case 48 is respectively connected with the first variable pump 49, the first gear pump 52 and the second gear pump 53, a first hydraulic branch 54 is arranged on the first variable pump 49, a front side motor 72 and an upper hydraulic motor 2 are connected onto the first hydraulic branch 54, a second hydraulic branch 55 is arranged on the first gear pump 52, a gripper oil cylinder 60, a shackle oil cylinder 61, a moving oil cylinder 32, a lateral moving oil cylinder 15 and a water injection pump 71 are connected onto the second hydraulic branch 55, a third hydraulic branch 56 is arranged on the second gear pump 53, and a lifting oil cylinder 9, a hydraulic support leg 37, a push shovel oil cylinder 65 and a winch 36 are connected onto the third hydraulic branch 56; the second output end of the transfer case 48 is connected with a second variable pump 50, a fourth hydraulic branch 57 is arranged on the second variable pump 50, and a fluid injection mechanism 59 and the drilling tool lifting oil cylinder 16 are connected to the fourth hydraulic branch 57; the third output end of the transfer case 48 is connected with a third variable pump 51, a fifth hydraulic branch 58 is arranged on the third variable pump 51, and a rear side motor 73 and a lower hydraulic motor 4 are connected to the fifth hydraulic branch 58.
According to requirements, the first variable pump 49 and the second variable pump 50 are both in the prior art and can be in the type of DANFOS 45E90, the third variable pump 51 can be in the prior art and can be in the type of DANFOS 100B L, L S, the first gear pump 52 and the second gear pump 53 are in the prior art and can be in the type of CBT25:25, the engine 47 can be in the prior art and can be in the type of 315 horsepower Commins engine 47, the transfer case 48 is in the prior art and can be in the type of Italy 300kW transfer case 48, and in the using process, the power transmission system is matched with the hydraulic system, so that the full-hydraulic structure is adopted in the invention, all execution components are hydraulically driven, the transmission mechanisms among each other are greatly simplified, the structure of the invention is more compact, the operation is more convenient, and the use is more stable and reliable.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the sliding frame includes a longitudinal carriage 12, a mounting plate 13, a transverse carriage 14, a slide rail, a height adjusting frame 31, a side-shifting cylinder 15 and a shifting cylinder 32, the longitudinal carriage 12 capable of sliding up and down along the tower frame 1 is arranged on the tower frame 1, the mounting plate 13 is arranged on the front side of the longitudinal carriage 12, the slide rail in the horizontal direction is arranged on the front side of the mounting plate 13, the right end of the slide rail is positioned at the right side of the mounting plate 13, the transverse carriage 14 capable of moving left and right along the slide rail is arranged on the front side of the mounting plate 13, the left end of the side-shifting cylinder 15 is fixedly mounted with the left part of the mounting plate 13, a side-shifting piston rod capable of extending out to the; a height adjusting frame 31 capable of moving up and down along the front side of the transverse sliding frame 14 is arranged at the upper part of the front side of the transverse sliding frame 14, two moving oil cylinders 32 are arranged at left and right intervals on the front side of the transverse sliding frame 14, the lower ends of the moving oil cylinders 32 are respectively installed with the corresponding positions of the front side of the transverse sliding frame 14, moving piston rods capable of extending upwards are arranged in the moving oil cylinders 32, and the upper ends of the moving piston rods are respectively installed with the corresponding positions of the height adjusting frame 31; an upper power head 3 is fixedly arranged on the front side of the height adjusting frame 31, and a lower power head 5 is fixedly arranged on the lower part of the front side of the transverse sliding frame 14; the moving oil cylinder 32 and the side moving oil cylinder 15 are connected to a second hydraulic branch 55.
A stop rail known in the art may be provided between the height adjustment bracket 31 and the cross carriage 14 as needed to ensure that the height adjustment bracket 31 can move up and down along the front side of the cross carriage 14. In the using process, the height adjusting frame 31 can move up and down along the transverse sliding frame 14 through the moving oil cylinder 32, so that the distance between the upper power head 3 and the lower power head 5 can be adjusted, and if the length of the lower end of the inner drilling tool exposed out of the outer drilling tool needs to be adjusted; the lateral carriage 14 can be moved to the right relative to the mounting plate 13 by the lateral displacement cylinder 15, thereby displacing the upper power head 3, the lower power head 5, the drill rod coupling 41 and the casing coupling 44 from the inner drill rod 42 and the outer casing 45, thereby facilitating the continued installation and lowering of the inner drill rod 42 and the outer casing 45 nested together during drilling of the inner drill bit 43 and the casing drill bit 46.
As shown in the attached figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, the drilling part further comprises a lifting mechanism, the lifting mechanism comprises a drilling tool lifting oil cylinder 16, a front fixed chain wheel 17, a rear fixed chain wheel, a lower fixed chain wheel 18, a lifting chain 19, a descending chain 20 and a chain wheel assembly, the chain wheel assembly comprises a first movable chain wheel 21, a second movable chain wheel 22 and a wheel frame, the middle part of the tower frame 1 is provided with a sliding cavity, the front side of the tower frame 1 corresponding to the position between the longitudinal sliding frame 12 and the tower frame 1 is fixedly provided with the drilling tool lifting oil cylinder 16, the drilling tool lifting oil cylinder 16 is internally provided with a lifting piston rod capable of extending downwards, the lower end of the lifting piston rod is fixedly provided with the wheel frame, the upper part of the wheel frame is provided with the first movable chain wheel 21, the lower part of the wheel frame is provided with the second movable chain wheel 22, the front fixed chain wheel 17 and the rear fixed chain wheel are arranged, the second end of the lifting chain 19 is fixedly arranged at the lower part of the drilling tool lifting oil cylinder 16 after sequentially passing through the upper side of the front fixed chain wheel 17, the upper side of the rear fixed chain wheel and the first movable chain wheel 21, the first end of the descending chain 20 is fixedly arranged with the lower end of the longitudinal sliding frame 12, and the second end of the descending chain 20 is fixedly arranged at the lower end of the tower frame 1 after sequentially passing through the lower fixed chain wheel 18 and the second movable chain wheel 22; the tool hoist cylinder 16 is connected to a fourth hydraulic branch 57.
In the using process, when the distance that the lifting piston rod extends downwards from the interior of the drilling tool lifting oil cylinder 16 is a, the distance that the lifting piston rod pushes the wheel carrier downwards is also a, at the moment, under the action of the first movable chain wheel 21, the distance that the lifting chain 19 lifts the sliding frame is 2a, multiple movement is formed, and the ascending efficiency of the sliding frame is enhanced; similarly, when the distance that the lifting piston rod extending out of the drilling tool lifting cylinder 16 is retracted into the lifting cylinder is b, the distance that the lifting piston rod pulls the wheel carrier upwards is b, and at the moment, under the action of the second movable chain wheel 22, the distance that the descending chain 20 descends the sliding frame is 2b, so that multiple movement is formed, and the descending efficiency of the sliding frame is enhanced; the drilling tool lifting oil cylinder 16 with a single piston is used, so that the drilling tool lifting oil cylinder has better lifting force; the first movable chain wheel 21 and the second movable chain wheel 22 are arranged in the wheel frame, so that the chain wheel assembly body is more stable and reliable in use; through the upper fixed chain wheel, the lower fixed chain wheel 18, the first movable chain wheel 21 and the second movable chain wheel 22, the four chain wheels can meet the efficient lifting and descending of the sliding frame, so that the sliding frame has the characteristics of high efficiency, stability and simple structure. In addition, the structure of the invention is more compact and stable by arranging two front fixed chain wheels 17 and rear fixed chain wheels with small sizes under the condition of not influencing the lifting force of the invention during the use process, and the situation that a single chain wheel with a large size occupies the installation space at the top of the tower frame 1 is avoided.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the wheel carrier comprises a mounting shell 23, a connecting cylinder 24, an upper axle 25, a lower axle 26, a left righting device and a right righting device, a vertically through mounting cavity is arranged in the mounting shell 23, the connecting cylinder 24 with the upper end positioned above the upper end is fixedly mounted on the inner side of the upper end of the mounting shell 23, and the inner side of the connecting cylinder 24 is fixedly mounted with the outer side of the lower end of the lifting piston rod; an upper wheel shaft 25 and a lower wheel shaft 26 are fixedly arranged on the inner side of the mounting shell 23 at intervals from top to bottom, the upper wheel shaft 25 and the lower wheel shaft 26 are arranged in the left-right direction, a first movable chain wheel 21 is sleeved on the outer side of the upper wheel shaft 25, and a second movable chain wheel 22 is sleeved on the outer side of the lower wheel shaft 26 corresponding to the position below the first movable chain wheel 21; the left centering device comprises a left centering seat 27, a left wheel shaft 28, a left bearing 29 and a left roller sleeve 30, the left centering seat 27 is fixedly installed at the center of the left side of the wheel carrier, the center of the left side of the left centering seat 27 is fixedly installed with the right end of the left wheel shaft 28, a left outer ring groove is formed in the outer side of the left end of the left wheel shaft 28, the left bearing 29 is arranged in the left outer ring groove, and the left roller sleeve 30 with a right opening is sleeved on the outer side of the left bearing 29; the right centering device comprises a right centering seat, a right wheel shaft, a right bearing and a right roller sleeve, the right centering seat is fixedly arranged in the center of the right side of the wheel carrier, the center of the right side of the right centering seat is fixedly arranged with the left end of the right wheel shaft, a right outer ring groove is arranged on the outer side of the right end of the right wheel shaft, the right bearing is arranged in the right outer ring groove, and the right roller sleeve with a left opening is sleeved on the outer side of the right bearing; the inner side of the left part of the tower frame 1 corresponding to the left roller sleeve 30 is provided with a left righting groove arranged in the vertical direction, the left roller sleeve 30 is positioned in the left righting groove, the inner side of the right part of the tower frame 1 corresponding to the right roller sleeve is provided with a right righting groove arranged in the vertical direction, and the right roller sleeve is positioned in the right righting groove.
According to the requirement, a bearing which is known in the prior art can be arranged between the first movable chain wheel 21 and the upper wheel axle 25; a bearing which is well known in the art can be arranged between the second movable chain wheel 22 and the lower wheel shaft 26; in addition, the mounting housing 23 may be two mounting plates 13 spaced apart from each other, and a mounting cavity is formed between the two mounting plates 13, thereby facilitating the rotation of the upper and lower wheel shafts 25 and 26. In the use process, through the arrangement, the wheel frame and the lower end of the lifting piston rod are conveniently and fixedly arranged together, the whole wheel frame can be more compact and reliable, and the first movable chain wheel 21 and the second movable chain wheel 22 can rotate in the wheel frame; in addition, the left centering device and the right centering device are arranged, so that the drill lifting cylinder 16 can be prevented from shifting when driving the wheel frame to move up and down in the tower frame 1.
As shown in the attached figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, the longitudinal sliding frame 12 comprises a mounting side plate, a left sliding plate, a right sliding plate, a left convex rail 33, a left front guide wheel, a left rear guide wheel, a right convex rail, a right front guide wheel and a right rear guide wheel, the left convex rail 33 arranged in the vertical direction is arranged on the outer side of the left part of the tower frame 1, the left sliding plate positioned on the left side of the left convex rail 33 is fixedly mounted on the left side of the rear side of the mounting side plate, at least two left front guide wheels are distributed at the upper and lower intervals on the right side of the left sliding plate corresponding to the front position of the left convex rail 33, at least two left rear guide wheels are distributed at the right side of the left sliding plate corresponding to the rear position of the left convex rail 33 at intervals from top to bottom, rotating shafts of the left front guide wheel and the left rear guide wheel are in the left-right direction, the rear side of the left front guide wheel is in contact with the corresponding position of the front side of the left convex rail 33, and the front side of the left rear guide wheel is in contact with the corresponding position of the rear side of the left convex rail 33; the outer side of the right part of the tower frame 1 corresponding to the position of the left convex rail 33 is provided with a right convex rail arranged in the vertical direction, the right end of the rear side of the mounting side plate is fixedly provided with a right sliding plate positioned on the right side of the right convex rail, the upper part and the lower part of the left side of the right sliding plate corresponding to the position in the front of the right convex rail are provided with at least two right front guide wheels, the upper part and the lower part of the left side of the right sliding plate corresponding to the position in the front of the right convex rail are provided with at least two right rear guide wheels, the rotating shafts of the right front guide wheels and the right rear guide wheels are in the left-right direction, the rear side of the right front guide wheels is in contact with the corresponding position on the front. In use, the friction when the longitudinal carriage 12 moves up and down relative to the tower 1 is reduced by this arrangement.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, the drilling rig further comprises an inner and outer casing 45 lifting device, the inner and outer casing 45 lifting device comprises a lifting chain 86, a lifting fixed chain wheel 87, a lifting hook 88, a connecting rod 74, an upper mounting ring 75, a first chain 76, a hanging ring 77, a clasping ring 78, a handle 79, a lower mounting ring 80, a second chain 81, a third chain 82, an outer casing lifting hook 83, a fork arm 84 and a fork body 85, clamping grooves are symmetrically arranged on the outer side of the lower portion of the inner drill rod 42, an upper mounting ring 75 is fixedly mounted at the upper end of the connecting rod 74, the upper mounting ring 75 and the lower end of the first chain 76 are fixedly mounted together, the upper end of the first chain 76 and the hanging ring 77 are fixedly mounted together, the left end of the upper portion of the connecting rod 74 and the right end of the clasping ring 78 are fixedly mounted together, a sleeving cavity is arranged in the middle of the clasping ring 78, a lower portion of the sleeving cavity is fixedly mounted together with the lower portion of the connecting rod 74, the right side of the lower portion of the handle 79 is fixedly mounted together with the handle 79, the lower mounting ring 80 is fixedly mounted together with the upper end of the outer casing of the hanging ring 81, the upper end of the second chain 81 and the outer casing 82, the hanging hook 80 is mounted together with the hanging hook 45, the hanging hook 80 and the hanging hook 80, the hanging hook, the hanging ring 80 are mounted together with the hanging hook, the hanging hook 80, the hanging hook 85, the hanging hook 80 and the hanging hook 80 are mounted together with the hanging hook 80, the hanging hook.
As shown in the attached drawings 1, 2, 3, 4, 5, 6, 7, 8 and 9, the slag remover further comprises a slag remover, the slag remover comprises a slag removing cylinder 34 and a slag discharging pipe 35, at least one inner slag discharging hole which is communicated with the inside and the outside is distributed on the outer side of the upper part of a sleeve joint 44 along the circumference, the outer side of the sleeve joint 44 corresponding to the position of the inner slag discharging hole is sleeved with the slag removing cylinder 34, an upper sealing ring platform is fixedly arranged on the inner side of the upper end of the slag removing cylinder 34, the inner side of the upper sealing ring platform is fixedly arranged with the outer side of the sleeve joint 44, a lower sealing ring platform is fixedly arranged on the inner side of the lower end of the slag removing cylinder 34, the inner side of the lower sealing ring platform is fixedly arranged with the outer side of the sleeve joint 44, at least one outer slag discharging hole which is communicated with the inside and the. In the use process, by arranging the inner slag discharge hole, annular cavities between the drill rod joint 41 and the casing joint 44, between the inner drill rod 42 and the outer casing 45 and between the inner drill bit 43 and the casing drill bit 46 are communicated with the slag removal cylinder 34, so that the inner drill bit 43 is convenient to discharge drilling slag such as sand, soil, mud and the like in the annular cavity from the slag discharge pipe 35 in the drilling process.
As shown in the attached figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, the outer side of the lower end of the floating pipe 7 is connected with the inner side of the upper end of the floating sleeve 6 through spline transmission. During the use, the spline is arranged, so that the torque can be transmitted between the floating pipe 7 and the floating sleeve 6 more stably and reliably.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, and 9, the present invention further includes a support assembly, the support assembly includes an upper nut 66, a lower nut 67, a support screw 68, a support plate 69, and support teeth 70, at least two vertically through mounting holes are provided on the lower end surface of the tower 1 at left and right intervals, a support screw 68 is provided in each mounting hole, the upper portion of the support screw 68 is provided with the upper nut 66 whose lower end is seated on the lower end surface of the tower 1, the lower portion of the support screw 68 is provided with the lower nut 67 whose upper end is abutted against the lower end surface of the tower 1, the support plate 69 is provided below the tower 1, the lower end of the support screw 68 is fixedly mounted together with the corresponding position of the upper end surface of the support plate 69. In the using process, the supporting assembly is arranged, so that the vertical well drilling operation is more stable and reliable.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the support rod 62 includes a support outer cylinder and a support inner rod, the support inner rod is sleeved in the support outer cylinder, the upper end of the support outer cylinder is located above the support outer cylinder, the lower end of the support outer cylinder is hinged with the corresponding position of the frame, and the upper end of the support inner rod is detachably and fixedly mounted with the support base 63. In the use process, the support of the tower 1 and the frame at different inclination angles is met through the arrangement.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
In the use process of the best embodiment of the invention:
when drilling a vertical well, it is necessary to perform drilling operations, lower the inner drill rod 42 and the outer casing 45 which are nested together, withdraw the inner drill rod 42 from the well and withdraw the outer casing 45 from the well.
Firstly, when drilling operation needs to be started:
(1) when the full-hydraulic gas-water dual-purpose multifunctional crawler drill reaches a designated well position, the drilling operation is started:
(2) starting a derrick lifting oil cylinder 9 to erect and lock the tower frame 1, and finding a vertical position by using a horizontal ruler to ensure that the tower frame 1 is vertical to the ground;
(3) the movable oil cylinder 32 is started to adjust the position of the inner drill bit 43, so that the lower end of the inner drill bit 43 is positioned below the casing drill bit 46, and the inner drill rod 42 and the outer casing 45 which are sleeved together form a first group;
(4) the upper power head 3 is started to rotate the inner bit 43 clockwise, the lower power head 5 is started to rotate the casing bit 46 anticlockwise, the slurry pump is started to spray liquid out of the inner bit 43, and pressurized drilling is started.
Secondly, when the inner drill rod 42 and the outer sleeve 45 which are sleeved together need to be lowered:
(1) after the lower parts of the first group of the inner drill rod 42 and the outer sleeve 45 which are sleeved together enter the stratum along with the inner drill bit 43 and the sleeve drill bit 46, the upper part of the first group of the outer sleeve 45 is clamped by the third clamp 40, and the sleeve joint 44 is clamped by the second clamp 39;
(2) after the shackle oil cylinder 61 is started to shackle, the lower power head 5 is started to rotate clockwise to complete the disassembly of the first group of outer sleeves 45 and the sleeve joint 44;
(3) starting the tool lifting cylinder 16 to lift the longitudinal carriage 12 and the casing joint 44 to expose the tool joint 41, clamping the tool joint 41 with the first clamp 38, and clamping the first group of inner tools 42 with the second clamp 39;
(4) after the shackle oil cylinder 61 is started to shackle, the upper power head 3 is started to rotate anticlockwise to finish the disassembly of the first group of inner drill rods 42 and the drill rod joints 41;
(5) starting the drill lifting cylinder 16 to lift the longitudinal carriage 12, the casing joint 44 and the drill rod joint 41, so that the distance between the casing joint 44 and the first group of outer casings 45 is greater than the length of the outer casings 45, and starting the lateral shifting cylinder 15 to move the transverse carriage 14 to the upper right part of the first group of outer casings 45;
(6) sleeving the second group of inner drill rods 42 and the outer sleeve 45 together, enabling the clamping grooves formed in the lower portions of the second group of inner drill rods 42 to be located below the second group of outer sleeve 45, sleeving the hooping 78 on the outer side of the upper portions of the second group of outer sleeve 45, hooking the inner side of the lower end of the second group of outer sleeve 45 by the outer sleeve lifting hook 83, and clamping the fork body 85 into the clamping grooves of the second group of inner drill rods 42;
(7) hooking a lifting hook 88 on a lifting ring 77, holding a handle 79 by a worker, starting a winch 36 to lift a second group of inner drill rods 42 and outer sleeves 45 which are sleeved together to the upper part of a first group of outer sleeves 45, and after the upper end screw threads of the first group of inner drill rods 42 are aligned with the lower end screw threads of the second group of inner drill rods 42, holding the second group of outer sleeves 45 by the hand to draw out a fork body 85, and aligning the upper end screw threads of the first group of outer sleeves 45 with the lower end screw threads of the second group of outer sleeves 45;
(8) starting the lateral shifting oil cylinder 15 to move the transverse carriage 14 to be right above the second group of outer sleeves 45, starting the drilling tool lifting oil cylinder 16 to lower the longitudinal carriage 12, aligning the screw threads at the upper end of the second group of inner drill rods 42 with the screw threads at the lower end of the drill rod joint 41, and aligning the screw threads at the upper end of the second group of outer sleeves 45 with the screw threads at the lower end of the sleeve joint 44;
(9) starting the upper power head 3 to rotate clockwise, and completing the installation between the drill rod joint 41 and the second group of inner drill rods 42 and the installation between the second group of inner drill rods 42 and the first group of inner drill rods 42 in sequence;
(10) starting the lower power head 5 to rotate anticlockwise, and sequentially completing the installation between the sleeve joint 44 and the second group of outer sleeves 45 and the installation between the second group of outer sleeves 45 and the first group of outer sleeves 45;
(11) the upper power head 3 keeps rotating clockwise, the lower power head 5 keeps rotating anticlockwise, and the drilling tool lifting oil cylinder 16 is started to lower the longitudinal carriage 12 at uniform speed, so that the lower parts of the second group of the inner drill rod 42 and the outer sleeve 45 which are sleeved together enter the stratum along with the inner drill bit 43 and the sleeve drill bit 46;
(12) and (3) repeating the steps (1) to (11), and putting down a plurality of groups of the inner drill rods 42 and the outer sleeves 45 which are sleeved together until the inner drill bits 43 and the sleeve drill bits 46 drill the target layer.
Third, when the inner drill rod 42 needs to be extracted from the well:
(1) after the inner drill bit 43 and the casing drill bit 46 drill to the target layer, the upper part of the penultimate group of outer casings 45 is clamped by a third clamping device 40, and the casing joint 44 is clamped by a second clamping device 39;
(2) after the shackle oil cylinder 61 is started to shackle, the lower power head 5 is started to rotate clockwise to finish the disassembly of the penultimate outer sleeve 45 and the sleeve joint 44;
(3) starting the drill lifting cylinder 16 to lift the longitudinal carriage 12, the casing joint 44, the drill rod joint 41 and the penultimate group inner drill rod 42, so that the upper part of the penultimate group inner drill rod 42 is exposed, clamping the lower end of the penultimate group inner drill rod 42 by using the first clamping device 38, and clamping the upper end of the penultimate group inner drill rod 42 by using the second clamping device 39;
(4) after the shackle oil cylinder 61 is started to shackle, the upper power head 3 is started to rotate anticlockwise, the dismounting of the penultimate group inner drill rod 42 and the penultimate group inner drill rod 42 is completed firstly, and then the dismounting of the drill rod joint 41 and the penultimate group inner drill rod 42 is completed;
(5) stopping the power head 3, and walking the penultimate group of inner drill rods 42 to ensure that the first clamp 38 does not clamp the penultimate group of inner drill rods 42 any more, and taking down the penultimate group of inner drill rods 42;
(6) starting the drilling tool lifting oil cylinder 16 to lower the longitudinal sliding frame 12, aligning the screw thread at the upper end of the penultimate inner drilling rod 42 with the screw thread at the lower end of the drilling rod joint 41, starting the upper power head 3 to rotate clockwise, and completing the installation between the drilling rod joint 41 and the penultimate inner drilling rod 42;
(7) starting the drill lifting cylinder 16 to lift the longitudinal carriage 12, the casing joint 44, the drill rod joint 41 and the penultimate group inner drill rod 42, so that the upper part of the penultimate group inner drill rod 42 is exposed, clamping the lower end of the penultimate group inner drill rod 42 by using the first clamping device 38, and clamping the upper end of the penultimate group inner drill rod 42 by using the second clamping device 39;
(8) and (4) repeating the steps (3) to (7) until the first group of inner drill rods 42 are taken out, and at the moment, putting a perforated pipe in the well to extinguish the fire in the well or putting other pipes into the well to complete corresponding functions.
Fourthly, when the outer casing 45 needs to be extracted from the well:
(1) clamping the upper part of the penultimate outer sleeve 45 by using a third clamping device 40, and clamping the sleeve joint 44 by using a second clamping device 39;
(2) starting the drilling tool lifting oil cylinder 16 to lower the longitudinal carriage 12, aligning the screw thread at the upper end of the penultimate outer sleeve 45 with the screw thread at the lower end of the sleeve joint 44, starting the lower power head 5 to rotate anticlockwise, and completing the installation between the sleeve joint 44 and the penultimate outer sleeve 45;
(3) starting the drill lifting cylinder 16 to lift the longitudinal carriage 12, the casing joint 44, the drill rod joint 41 and the penultimate outer casing 45, so that the upper part of the penultimate outer casing 45 is exposed, clamping the lower end of the penultimate outer casing 45 by using the first clamp holder 38, and clamping the upper end of the penultimate outer casing 45 by using the second clamp holder 39;
(4) after the shackle oil cylinder 61 is started to shackle, the lower power head 5 is started to rotate clockwise, the dismounting of the penultimate outer sleeve 45 and the penultimate outer sleeve 45 is completed firstly, and then the dismounting of the sleeve joint 44 and the penultimate outer sleeve 45 is completed;
(5) stopping the power head 3, walking the penultimate outer sleeve 45, sleeving the holding ring 78 on the outer side of the upper part of the penultimate outer sleeve 45, hooking the inner side of the lower end of the penultimate outer sleeve 45 by the outer sleeve lifting hook 83, enabling the first clamp 38 to not clamp the penultimate outer sleeve 45, starting the winch 36, and taking down the penultimate outer sleeve 45;
(6) repeating the steps (2) to (5) until the first set of outer sleeves 45 are removed.
According to the requirement, the lower end of the inner drill bit 43 extends out of 60mm below the casing drill bit 46; in addition, the air compressor needs the slush pump not to use simultaneously, can select according to the actual demand, insert fourth hydraulic branch 57 promptly and use, when using the air compressor, need open water injection pump 71 according to the condition in the well, make water get into in proper order and spout from interior drill bit 43 lower extreme behind drilling rod joint 41 and the interior drilling rod 42, reach the same effect with the liquid that the slush pump was pumped from this, cooling and lubrication promptly, because water injection pump 71 water injection is just the auxiliary action, so its water consumption is less than the slush pump far away, consequently can carry out drilling operation under the condition that the water source is not enough.
During drilling, the casing bit 46 and the inner bit 43 form a working method state with opposite cutting directions, the crushed rock protects the well wall, and the liquid (gas) sprayed from the inner bit 43 carries the drill cuttings in the well from the annular cavity between the inner drill rod 42 and the outer sleeve 45 to the deslagging cylinder 34 and is discharged from the deslagging pipe 35.
When drilling a deviated well: after the invention reaches the designated well position, the casing joint 44, the outer casing 45 and the casing bit 46 are removed, the drilling operation is carried out only by using the upper power head 3, the drill rod joint 41, the inner drill rod 42 and the inner bit 43, the derrick lifting cylinder 9 is started to enable the tower frame 1 to be erected in an inclined shape, the upper end of the supporting rod 62 is fixed and locked with the supporting seat 63 after the inclination angle of the tower frame 1 is adjusted, the lower end of the tower frame 1 is enabled to be propped against the ground, the inner bit 43 is clamped and centered by arranging the existing well-known centering sleeve in the first clamp 38, the second clamp 39 and the third clamp 40, the upper power head 3 is started to enable the inner bit 43 to rotate clockwise, a slurry pump (an air compressor) is started to enable liquid (.