CN212225101U - Gas-water dual-purpose crawler-type casing drilling machine - Google Patents

Abstract

The utility model relates to a drilling machine tool technical field is a dual-purpose crawler-type bushing drill of air water, and it includes frame, drilling portion, derrick lift cylinder, bracing piece, supporting seat, power portion and hydraulic system, is equipped with drilling portion, power portion and hydraulic system on the frame. The utility model has reasonable and compact structure and convenient use, and meets the requirement of air-water dual-purpose drilling operation by connecting an air compressor or a slurry pump to the second hydraulic branch; the passing capacity of the complex terrain is enhanced by arranging the crawler chassis; by arranging the supporting rod, the tower can incline in a shape of inclining up, down and front, so that the utility model can complete the drilling operation of the inclined shaft; the dual purposes of air and water are realized by arranging a slurry pump and an air compressor; through set up the lift piston rod of singly going out in single piston's drilling tool lift cylinder, for the lift piston rod provides better lifting force, have high-efficient, the characteristics of passing through can well and simple structure.

Description

Gas-water dual-purpose crawler-type casing drilling machine

Technical Field

The utility model relates to a drilling machinery technical field is a dual-purpose crawler-type casing drill of air water.

Background

At present, when a single-power-head drilling machine drills a fractured stratum, gravel boulder and other complex strata, the problems of unstable well wall, easy collapse, low drilling efficiency and high failure rate exist. Therefore, at present, a double-power-head drilling machine is often used for replacing a single-power-head drilling machine for the terrain. When the dual-power-head drilling machine is used for drilling, the dual-power-head drilling machine is restricted by the operation environment, such as the problems that water cannot be injected into a well when a water source is lacked in a mine, the wheel type vehicle-mounted drilling machine with rugged mountain road and large gradient cannot enter, the inclined well drilling operation cannot be completed, and the like.

Disclosure of Invention

The utility model provides a dual-purpose crawler-type casing drill of air water has overcome above-mentioned prior art not enough, and it can effectively solve the not enough unable well drilling of current rig water source and can't accomplish the problem of inclined shaft drilling operation through the straight-well rig.

The technical scheme of the utility model is realized through following measure: a crawler-type casing drilling machine for drilling both air and water is composed of a frame, a drilling unit consisting of tower frame, slide frame, upper hydraulic motor, upper power head, lower hydraulic motor, lower power head, floating sleeve, floating tube, drilling rod joint, internal drilling rod, internal drilling bit, casing joint, external casing, casing bit, fluid injection mechanism, the first clamper, the second clamper and the third clamper, a crawler-type casing drilling machine with upper hydraulic motor, upper power head, lower hydraulic motor and lower power head, a supporting seat, a power unit and a hydraulic system, the lower end of the inner drill rod and the upper end of the inner drill bit are fixedly arranged together; 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 frame is provided with a fluid injection mechanism, the fluid injection mechanism comprises an air compressor and a slurry pump, an air outlet of the air compressor and a liquid outlet of the slurry pump are communicated with a drill rod joint through pipelines, the lower part of the tower is sequentially provided with a first clamp, a second clamp and a third clamp from top to bottom, clamp oil cylinders are arranged on the first clamp, the second clamp and the third clamp, and a shackle oil cylinder is arranged on the second clamp; a derrick lifting oil cylinder capable of driving the tower frame to rotate is arranged between the frame and the tower frame, the lower end of the derrick lifting oil cylinder is hinged with the corresponding position of the frame, a derrick piston rod capable of extending upwards is arranged in the derrick lifting oil cylinder, the upper end of the derrick piston rod is hinged with the corresponding position of the rear side of the tower frame, a support rod is arranged between the frame and the tower frame corresponding to the rear position of the derrick lifting oil cylinder, the lower end of the support rod is hinged with the corresponding position of the frame, a support seat is fixedly arranged at the upper part of the tower frame, and the upper; the output end of the power part is connected with the input end of the hydraulic system, and the drilling part and the derrick lifting oil cylinder are both connected with the output end of the hydraulic system.

The following are further optimization or/and improvement of the technical scheme of the utility model:

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 comprises a hydraulic support leg, a push shovel, a water injection pump and a winch, the hydraulic support leg is arranged at the lower part of the frame, the push shovel is hinged to the rear side of the frame, a push shovel oil cylinder capable of driving the push shovel to rotate is arranged between the push shovel and the frame, the water injection pump is arranged on the frame, and a water outlet of the water injection pump is communicated with the drill rod connector through a pipeline; the tower is provided with a winch.

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 slag remover also comprises a slag removing cylinder and a slag discharging pipe, wherein 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 the sleeve joint along the circumference; at least one outer slag discharge hole which is communicated from inside to outside is distributed on the outer side of the middle part of the slag removing cylinder along the circumference, and a slag discharge pipe is fixedly arranged on the outer side of the slag removing cylinder corresponding to the position of each outer slag discharge hole.

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 utility model 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.

Drawings

Fig. 1 is a schematic structural view of the preferred embodiment of the present invention.

FIG. 2 is a left-view reduced structure diagram of FIG. 1 in vertical drilling operation.

FIG. 3 is a left-view reduced structure diagram of FIG. 1 in a slant well drilling operation.

Fig. 4 is a schematic structural diagram of the lifting mechanism shown in fig. 1.

FIG. 5 is a front enlarged structural schematic view of the sprocket assembly of FIG. 1.

Fig. 6 is a front enlarged cross-sectional structural view of the support assembly of fig. 1.

FIG. 7 is a schematic main enlarged cross-sectional view of the floating sleeve and floating tube of FIG. 1 shown mounted together.

Fig. 8 is a hydraulic schematic diagram of the preferred embodiment of the present invention.

The codes in the figures are respectively: 1 is a tower, 2 is an upper hydraulic motor, 3 is an upper power head, 4 is a lower hydraulic motor, 5 is a lower power head, 6 is a floating sleeve, 7 is a floating pipe, 8 is a crawler chassis, 9 is a derrick lifting cylinder, 10 is a limiting outer ring platform, 11 is a limiting inner ring platform, 12 is a longitudinal carriage, 13 is a mounting plate, 14 is a transverse carriage, 15 is a lateral shifting cylinder, 16 is a drilling tool lifting cylinder, 17 is a front fixed chain wheel, 18 is a lower fixed chain wheel, 19 is a lifting chain, 20 is a descending chain, 21 is a first movable chain wheel, 22 is a second movable chain wheel, 23 is a mounting shell, 24 is a connecting cylinder, 25 is an upper wheel shaft, 26 is a lower wheel shaft, 27 is a left centering seat, 28 is a left wheel shaft, 29 is a left bearing, 30 is a left roller sleeve, 31 is a height adjusting frame, 32 is a moving cylinder, 33 is a left convex rail, 34 is a deslagging cylinder, 35 is a deslagging cylinder, 36 is a winch, 37 is a hydraulic support leg, 38 is a first holder, 39 is a second holder, 40 is a third holder, 41 is a drill pipe joint, 42 is an inner drill pipe, 43 is an inner drill bit, 44 is a casing joint, 45 is an outer casing, 46 is a casing drill bit, 47 is an engine, 48 is a transfer case, 49 is a first variable pump, 50 is a second variable pump, 51 is a third variable pump, 52 is a first gear pump, 53 is a second gear pump, 54 is a first hydraulic branch, 55 is a second hydraulic branch, 56 is a third hydraulic branch, 57 is a fourth hydraulic branch, 58 is a fifth hydraulic branch, 59 is a fluid injection mechanism, 60 is a holder cylinder, 61 is a trip cylinder, 62 is a support rod, 63 is a support seat, 64 is a push blade, 65 is a push blade cylinder, 66 is an upper nut, 67 is a lower nut, 68 is a support screw rod, 69 is a support plate, 70 is a support tooth, 71 is a water injection pump, 72 is a front side motor, 73 is a rear side motor.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in 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 will be further described with reference to the following examples and drawings:

as shown in the attached figures 1, 2, 3, 4, 5, 6, 7 and 8, the gas-water dual-purpose crawler-type casing drilling machine comprises a frame, a drilling part, a derrick lifting cylinder 9, a support rod 62, a support base 63, a power part and a hydraulic system, wherein the frame is provided with the drilling part, the power part and the hydraulic system, the drilling part comprises a tower frame 1, a sliding frame, an upper hydraulic motor 2, an upper power head 3, a lower hydraulic motor 4, a lower power head 5, a floating sleeve 6, a floating pipe 7, a drill pipe joint 41, an inner drill pipe 42, an inner drill bit 43, a casing joint 44, an outer casing 45, a casing drill bit 46, a fluid injection mechanism 59, a first clamp 38, a second clamp 39 and a third clamp 40, the lower part of the tower frame 1 is hinged on the frame, the sliding frame capable of sliding along the tower frame 1 is arranged on the tower frame, the upper hydraulic motor 2, the upper power head 3, the lower hydraulic motor 4, an output shaft of the upper hydraulic motor 2 is fixedly installed and connected with an input shaft of the upper power head 3, a 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 an inner drill rod 42, and the lower end of the inner drill rod 42 is fixedly installed with the upper end of an inner drill bit 43; 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 frame is provided with a fluid injection mechanism 59, the fluid injection mechanism 59 comprises an air compressor and a slurry pump, an air outlet of the air compressor and a liquid outlet of the slurry pump are communicated with a drill rod joint 41 through pipelines, 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; a 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, a support rod 62 is arranged between the frame corresponding to the rear position of the derrick lifting cylinder 9 and the tower frame 1, the lower end of the support rod 62 is hinged with the corresponding position of the frame, a support seat 63 is fixedly arranged at the upper part of the tower frame 1, and the upper end of the support; the output end of the power part is connected with the input end of the hydraulic system, and the drilling part and the derrick lifting oil cylinder 9 are both connected with the output end of the hydraulic system.

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. When using the utility model discloses when carrying out the drilling operation, need constantly to transfer interior drilling rod 42 and the outer tube 45 of suit together to the well, consequently need constantly dismantle the screw thread between tool joint 41 and interior drilling rod 42 and the screw thread between tool joint 44 and the outer tube 45 to constantly pack into and transfer interior drilling rod 42 and the outer tube 45 of suit together. 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, due to the fact that the floating sleeve 6 and the floating tube 7 have a space which floats up and down, the lower end of the sleeve joint 44 is prevented from directly impacting the upper end of the outer sleeve 45, and the connecting screw thread between the sleeve joint 44 and the outer sleeve 45 is prevented from being damaged. The utility model 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; the mud pump is arranged, so that drilling is completed under the condition of sufficient water source; by arranging the supporting rod 62, the tower frame 1 can be inclined in a front-to-back manner, so that the drilling operation of the inclined shaft is realized; through adopting the key-type connection between the floating sleeve 6 and the floating pipe 7 which are sleeved together, under the transmission of the output shaft of the hydraulic motor 4 and the sleeve joint 44 without influencing, the protection of the screw thread at the upper end of the outer sleeve 45 and the screw thread at the lower end of the sleeve joint 44 is realized, and the device has the characteristics of high efficiency, good passing performance and simple structure.

The gas-water dual-purpose crawler-type casing drilling machine can be further optimized or/and improved according to actual needs:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, 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 on the lower portion 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 support leg 37, a push shovel 64, a water injection pump 71 and a winch 36, the hydraulic support leg 37 is arranged at the lower part 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 is communicated with the drill rod connector 41 through a pipeline; the tower 1 is provided with a winch 36.

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 and 8, 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.

The first variable pump 49 and the second variable pump 50 are both known in the art, and may be of the type danpos 45E 90; the third variable displacement pump 51 may be of the prior art, and may be of the type danfoss 100bl.ls; the first gear pump 52 and the second gear pump 53 are known as twin gear pumps and may be of the type CBT25: 25; the engine 47 is of a known type, which may be a 315 horsepower Cormins engine 47; the transfer case 48 is of a known art and may be of the type 300kW transfer case 48 in italy. In the using process, the operation control of the utility model is convenient by arranging a hydraulic system with full hydraulic control; an air compressor or a slurry pump is connected to the second hydraulic branch 55, so that the air-water dual-purpose drilling operation is met.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the sliding frame includes a longitudinal sliding frame 12, a mounting plate 13, a transverse sliding frame 14, a sliding rail, a height adjusting frame 31, a side-shifting cylinder 15, and a shifting cylinder 32, the tower frame 1 is provided with the longitudinal sliding frame 12 capable of sliding up and down along the tower frame 1, the front side of the longitudinal sliding frame 12 is provided with the mounting plate 13, the front side of the mounting plate 13 is provided with the sliding rail in the horizontal direction, the right end of the sliding rail is positioned at the right side of the mounting plate 13, the front side of the mounting plate 13 is provided with the transverse sliding frame 14 capable of moving left and right along the sliding rail, the left end of the side-shifting cylinder 15 is fixedly mounted with the left part of the mounting plate 13, the side-shifting cylinder; 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.

According to requirements, a limit guide rail can be arranged between the height adjusting frame 31 and the transverse sliding frame 14, so that the height adjusting frame 31 can move up and down along the front side of the transverse sliding frame 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 and 8, the drilling part further comprises a lifting mechanism, the lifting mechanism comprises a drilling tool lifting 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 cylinder 16, the drilling tool lifting 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 at intervals in, 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 utility model 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 last fixed sprocket, down fixed sprocket 18, first movable sprocket 21 and the second movable sprocket 22, four sprockets just can satisfy the efficient promotion and the decline of sliding frame, make the utility model has the characteristics of high efficiency, stability and simple structure. In addition, in the use, not influencing the utility model discloses under the condition of lifting force, through setting up two preceding fixed sprockets 17 of small-size and the fixed sprocket after, make the utility model discloses the structure is compacter and stable, avoids using an independent jumbo size sprocket to occupy the installation space at pylon 1 top.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, 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 and 8, 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 the attached figures 1, 2, 3, 4, 5, 6, 7 and 8, the slag remover comprises a slag removing cylinder 34 and a slag discharging pipe 35, wherein 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 slag removing cylinder 34 is sleeved on the outer side of the sleeve joint 44 corresponding to the position of the inner slag discharging hole, an upper sealing ring platform is fixedly installed 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 installed with the corresponding position of the outer side of the sleeve joint 44, a lower sealing ring platform is fixedly installed on the inner side of the lower end of the slag removing cylinder 34, and the inner side of; at least one outer slag discharge hole which is communicated with the inside and the outside is distributed on the outer side of the middle part of the slag removing cylinder 34 along the circumference, and a slag discharge pipe 35 is fixedly arranged on the outer side of the slag removing cylinder 34 corresponding to the position of each outer slag discharge hole. 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 and 8, 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, and 8, 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 use, through setting up supporting component, make the utility model discloses it is more reliable and more stable when carrying out the well drilling operation of straight well.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, 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.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

The utility model discloses in the use of best embodiment:

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) and when the gas-water dual-purpose crawler-type casing drill reaches the designated well position, starting drilling operation:

(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, so that the lower parts of the second group of inner drill rods 42 are positioned below the second group of outer sleeve 45;

(7) starting the winch 36 to lift the second group of the inner drill rods 42 and the outer sleeves 45 which are sleeved together to the upper part of the first group of the outer sleeves 45, so that the screw threads at the upper ends of the first group of the inner drill rods 42 are aligned with the screw threads at the lower ends of the second group of the inner drill rods 42, and then the screw threads at the upper ends of the first group of the outer sleeves 45 are aligned with the screw threads at the lower ends of the second group of the 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, and walking the penultimate group of the outer sleeves 45 to ensure that the first clamp 38 does not clamp the penultimate group of the outer sleeves 45 any more, starting the winch 36, and taking down the penultimate group of the outer sleeves 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: the utility model discloses after reacing appointed well position, with bushing 44, outer tube 45 and casing bit 46 demolish, only use unit head 3, the tool joint 41, interior drilling rod 42 and interior drill bit 43 carry out the drilling operation, it sticks up to be the slope form to start derrick lift cylinder 9 and makes pylon 1, adjust behind pylon 1 inclination fixed and locking through bracing piece 62 upper end and supporting seat 63, make pylon 1 lower extreme withstand ground, through first holder 38, set up current known centering cover in second holder 39 and the third holder 40 and right the centering of interior drill bit 43 centre gripping, it makes interior drill bit 43 clockwise rotation to start unit head 3, it makes liquid (gas) blowout interior drill bit 43 to start slush pump (air compressor), begin the pressurization well drilling.

Claims (10)

1. A crawler-type casing drilling machine with dual-purpose of air and water is composed of a frame, a drilling unit with drilling hole, a lifting oil cylinder for derrick, supporting rods, supporting seat, power unit and hydraulic system, a drilling unit consisting of tower frame, slide frame, upper hydraulic motor, upper power head, lower hydraulic motor, lower power head, floating sleeve, floating tube, drill rod joint, internal drill rod, internal drill bit, casing joint, external casing pipe, casing drill bit, fluid injection mechanism, the first clamper, the second clamper and the third clamper, a slide frame able to slide along said tower frame, upper hydraulic motor, upper power head, lower hydraulic motor and lower power head, the lower end of the drill rod joint is fixedly arranged with the upper end of the inner drill rod, and the lower end of the inner drill rod is fixedly arranged with the upper end of the inner drill bit; 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 frame is provided with a fluid injection mechanism, the fluid injection mechanism comprises an air compressor and a slurry pump, an air outlet of the air compressor and a liquid outlet of the slurry pump are communicated with a drill rod joint through pipelines, the lower part of the tower is sequentially provided with a first clamp, a second clamp and a third clamp from top to bottom, clamp oil cylinders are arranged on the first clamp, the second clamp and the third clamp, and a shackle oil cylinder is arranged on the second clamp; a derrick lifting oil cylinder capable of driving the tower frame to rotate is arranged between the frame and the tower frame, the lower end of the derrick lifting oil cylinder is hinged with the corresponding position of the frame, a derrick piston rod capable of extending upwards is arranged in the derrick lifting oil cylinder, the upper end of the derrick piston rod is hinged with the corresponding position of the rear side of the tower frame, a support rod is arranged between the frame and the tower frame corresponding to the rear position of the derrick lifting oil cylinder, the lower end of the support rod is hinged with the corresponding position of the frame, a support seat is fixedly arranged at the upper part of the tower frame, and the upper; the output end of the power part is connected with the input end of the hydraulic system, and the drilling part and the derrick lifting oil cylinder are both connected with the output end of the hydraulic system.

2. The gas-water dual-purpose crawler-type casing pipe drilling machine according to claim 1, further comprising a traveling part and an auxiliary part, wherein the traveling part comprises a crawler chassis, a front side motor and a rear side motor, the crawler chassis is fixedly mounted at the lower part of the frame, and the front side motor and the rear side motor are arranged on the crawler chassis; the auxiliary part comprises a hydraulic support leg, a push shovel, a water injection pump and a winch, the hydraulic support leg is arranged at the lower part of the frame, the push shovel is hinged to the rear side of the frame, a push shovel oil cylinder capable of driving the push shovel to rotate is arranged between the push shovel and the frame, the water injection pump is arranged on the frame, and a water outlet of the water injection pump is communicated with the drill rod connector through a pipeline; the tower is provided with a winch.

3. The gas-water dual-purpose crawler-type casing drilling machine according to claim 2, wherein 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.

4. The gas-water crawler-type casing pipe drilling machine as claimed in claim 3, wherein the sliding frame comprises 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, 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; 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.

5. The crawler-type casing drilling machine for both air and water according to claim 4, wherein the drilling portion further comprises a lifting mechanism, the lifting mechanism comprises a drilling tool lifting 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 assembly, the chain wheel assembly 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 cylinder is fixedly installed 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 cylinder, the lower end of the lifting piston rod is fixedly installed with the wheel carrier, the first movable chain wheel is arranged on the upper portion of the wheel carrier, the second movable chain wheel is arranged on the lower portion of the wheel carrier, the front fixed chain wheel and the rear fixed chain wheel are arranged at intervals, the second end of the lifting chain is fixedly arranged at the lower part of the lifting oil cylinder of the drilling tool after sequentially passing the upper side of the front fixed chain wheel, the upper side of the rear fixed chain wheel and the first movable chain wheel, the first end of the descending chain is fixedly arranged with the lower end of the longitudinal sliding frame, and the second end of the descending chain is fixedly arranged at the lower end of the tower after sequentially passing the lower fixed chain wheel and the second movable chain wheel; and the drilling tool lifting oil cylinder is connected to the fourth hydraulic branch.

6. The gas-water dual-purpose crawler-type casing drilling machine according to claim 5, wherein the wheel carrier comprises a mounting shell, a connecting cylinder, an upper wheel shaft, a lower wheel shaft, a left centering device and a right centering device, a vertically through mounting cavity is formed in the mounting shell, the connecting cylinder with the upper end positioned above the mounting shell is fixedly mounted on the inner side of the upper end of the mounting shell, 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.

7. The air-water dual-purpose crawler-type casing drilling machine as recited in claim 4, 5 or 6, wherein the longitudinal carriage comprises 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, the left convex rail arranged in the vertical direction is arranged at the outer side of the left part of the tower frame, the left sliding plate positioned at the left side of the left convex rail is fixedly mounted at the left end 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 track, 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 at intervals up and down, 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, 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; 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.

8. The gas-water dual-purpose crawler-type casing drilling machine according to claim 1, 2, 3, 4, 5 or 6, further comprising a slag remover, wherein the slag remover comprises a slag removing cylinder and a slag discharging pipe, 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 the casing joint along the circumference, the slag removing cylinder is sleeved on the outer side of the casing joint corresponding to the position of the inner slag discharging hole, an upper sealing ring platform is fixedly installed on the inner side of the upper end of the slag removing cylinder, the inner side of the upper sealing ring platform is fixedly installed with the corresponding position of the outer side of the casing joint, a lower sealing ring platform is fixedly installed on the inner side of the lower end of the slag removing cylinder; at least one outer slag discharge hole which is communicated from inside to outside is distributed on the outer side of the middle part of the slag removing cylinder along the circumference, and a slag discharge pipe is fixedly arranged on the outer side of the slag removing cylinder corresponding to the position of each outer slag discharge hole.

9. The gas-water dual-purpose crawler-type casing drilling machine according to claim 7, further comprising a slag remover, wherein the slag remover comprises a slag removing cylinder and a slag discharging pipe, 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 the casing joint along the circumference, the slag removing cylinder is sleeved on the outer side of the casing joint corresponding to the position of the inner slag discharging hole, an upper sealing ring platform is fixedly installed on the inner side of the upper end of the slag removing cylinder, the inner side of the upper sealing ring platform and the outer side of the casing joint are fixedly installed together, a lower sealing ring platform is fixedly installed on the inner side of the lower end of the slag removing cylinder, and the inner; at least one outer slag discharge hole which is communicated from inside to outside is distributed on the outer side of the middle part of the slag removing cylinder along the circumference, and a slag discharge pipe is fixedly arranged on the outer side of the slag removing cylinder corresponding to the position of each outer slag discharge hole.

10. The gas-water dual-purpose crawler-type casing pipe drilling machine according to claim 1, 2, 3, 4, 5, 6 or 9, characterized in that the outer side of the lower end of the floating pipe is in spline transmission connection with the inner side of the upper end of the floating sleeve; the support component comprises an upper nut, a lower nut, a support screw rod, a support plate and support teeth, at least two vertically through mounting holes are formed in the left side and the right side of the lower end face of the tower at intervals, the support screw rod is arranged in each mounting hole, the upper nut with the lower end seated on the lower end face of the tower is arranged at the upper part of the support screw rod, the lower nut with the upper end abutting against the lower end face of the tower is arranged at the lower part of the support screw rod, the support plate is arranged below the tower, the lower end of the support screw rod and the upper end face of the support plate are fixedly arranged together, and the support teeth are fixedly arranged on the; and the support rod comprises 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.

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