CN106285467A - A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and construction method - Google Patents
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and construction method Download PDFInfo
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- CN106285467A CN106285467A CN201610700833.8A CN201610700833A CN106285467A CN 106285467 A CN106285467 A CN 106285467A CN 201610700833 A CN201610700833 A CN 201610700833A CN 106285467 A CN106285467 A CN 106285467A
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- Prior art keywords
- feeding
- truck
- drilling rig
- chassis
- mounted drilling
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/024—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/023—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
Abstract
The present invention relates to a kind of truck-mounted drilling rig and construction method, belong to coal-bed gas exploitation field, be specifically related to a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and construction method.Including: chassis, power unit and apparatus for feeding；Wherein, power unit and apparatus for feeding are arranged along center chassis axis；The surrounding on described chassis is respectively provided with front leg strut and rear support leg；Described power unit is arranged at the indent position in the middle of chassis；Being provided with on described apparatus for feeding can be along the planker of longitudinal sliding motion；Described planker is connected with chassis by pitching oil cylinder；On described apparatus for feeding, unit head is set.This rig and construction method perfect in shape and function, easy to use, be applicable to ground coal bed gas wellbore construction.
Description
Technical field
The present invention relates to a kind of truck-mounted drilling rig and construction method, belong to coal-bed gas exploitation field, be specifically related to a kind of being suitable for
Truck-mounted drilling rig and construction method in ground coal bed gas wellbore construction.
Background technology
Coalbed gas in coal mine area (gas) exploitation is to ensureing that downhole safety produces, increases clean energy resource supply, promotes energy-conservation subtracting
Row, reduce greenhouse gas emission significant.The exploitation of coal bed gas typically has two ways: one is mining with surface drill well；
Two is underground gas extraction.
Ground coal bed gas extraction have well layout flexibly, production cycle length, production capacity advantages of higher, apply more and more wider
General.Wellbore construction of the prior art uses water drilling rig or small-sized oil-well rig mostly, does not possess actively pressurization function, technique
Bad adaptability, drilling efficiency is low.Indivedual producer is had to be proposed vehicular rig, but in the miscellaneous function of rig, use just
There is more problem in victory, the aspect such as the suitability of technique.
Summary of the invention
The present invention mainly solves the rig existing for prior art and construction method does not possess actively pressurization function, technique
Bad adaptability, the technical problem that drilling efficiency is low, it is provided that a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and
Construction method.This rig and construction method perfect in shape and function, easy to use, be applicable to ground coal bed gas wellbore construction.
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, it is characterised in that including: chassis, power unit
And apparatus for feeding；Wherein, power unit and apparatus for feeding are arranged along center chassis axis；Before the surrounding on described chassis is respectively provided with
Supporting leg and rear support leg；Described power unit is arranged at the indent position in the middle of chassis；Being provided with on described apparatus for feeding can be along vertical
To the planker slided；Described planker is connected with chassis by pitching oil cylinder；On described apparatus for feeding, unit head is set.
Optimizing, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, described power unit includes:
Diesel engine, wherein: one end output of described diesel engine drives hydraulic pump group through transfer case, and the other end drives pneumatics by clutch
Machine.
Optimize, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, giving of described truck-mounted drilling rig
Entering device lower end and have mast supporting leg and mechanical lag, mast supporting leg can stretch so that apparatus for feeding can be abutted against by apparatus for feeding relatively
Tread surface, one end of mechanical lag is fixing connects apparatus for feeding, and the other end is screwed out by screw thread and is compacted at the end of mast supporting leg
On plate.
Optimizing, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, described unit head includes: main
The floating axle that axle is coaxially connected with main shaft；Described motor and main shaft are arranged in casing；Described casing is fixed on little by rotating disk
On planker, described rotating disk connects angle modulation oil cylinder by pivoted arm.
Optimize, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, described rotating disk is arranged
There is hole, location；Being provided with locked cylinder on described upper slide rest, the stroke lever of described locked cylinder connects and positions what matched in hole
Bearing pin.
Optimizing, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, described floating axle is by flower
Key is connected with main shaft, and can be with main shaft axial float.
Optimize, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, described main shaft is coaxially pacified
Dress frictional disk, described upper slide rest arranges brake, and described frictional disk is positioned at the braking opening range of brake.
Optimize, above-mentioned a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, also include: mud line manifold；
Described mud line manifold includes:
The pulp-inlet pipe being connected with outside drilling fluid feedway, the grout outlet being connected with drilling system mud channel, with outward
The pressure measuring tie-in that portion's pressure tester is connected；
In the middle of described pulp-inlet pipe and grout outlet, main valve is set；Described grout outlet connecting bypass valve.
A kind of utilize above-mentioned truck-mounted drilling rig to carry out the method constructed, including: creep into preparation flow process, described in creep into preparation flow process
Farther include:
Step 1.1, truck-mounted drilling rig positions, according to well layout and bore position, truck-mounted drilling rig is moved to precalculated position；
Step 1.2, by two front leg struts and two rear support legs by chassis leveling, makes tire depart from ground, wherein, chassis
Inclination angle, left and right be not more than 3 °, front and back inclination angle is not more than 3 °；
Step 1.3, shows bench board to correct position, it is ensured that apparatus for feeding does not touches with bench board during erecting
Hit；
Step 1.4, erects apparatus for feeding by pitching oil cylinder, make angle between apparatus for feeding and chassis be 87 ° with 93 ° it
Between；
Step 1.5, adjusts apparatus for feeding height by planker oil cylinder, makes the space between opening arrangement and ground meet peace
The requirement of the auxiliary equipments such as dress preventer；
Step 1.6, stretches out mast supporting leg, contacts with ground；
Step 1.7, operates mechanical lag, and front end contacts with mast supporting leg, prevents mast supporting leg from bouncing back；
Step 1.8, connects planker oil cylinder oil inlet and outlet, makes planker oil cylinder be in floating bit, and whole apparatus for feeding is implemented
To ground, in drilling process, load is not transferred to chassis, completes the rig preparation before creeping into.
Optimizing, above-mentioned construction method, described truck-mounted drilling rig transition transport prepares flow process and includes:
Step 2.1, makes planker oil cylinder oil inlet and outlet separate；
Step 2.2, packs up mechanical lag；
Step 2.3, regains and can relatively stretch so that the mast supporting leg on apparatus for feeding reliable contacts ground by apparatus for feeding；
Step 2.4, operates pitching oil cylinder, makes apparatus for feeding be recovered to level；
Step 2.5, regains bench board to travel position；
Step 2.6, regains front leg strut and rear support leg completely, in operating process, should intersect and operate front leg strut and rear support leg, keep away
Exempt from inclination angle, chassis excessive；
The parts such as bench board are fixed by step 2.7, i.e. complete truck-mounted drilling rig transition transport and prepare.
Therefore, present invention have the advantage that this truck-mounted drilling rig, with chassis as platform, can quickly move after apparatus for feeding withdrawal
Dynamic, mobility strong；Chassis uses concave design, reduces car load height；Unit head possesses main shaft tilting, spindle floating, master
The functions such as axle locking, have that adjunction drilling tool is convenient, can protect the advantage such as drilling tool, directional drilling convenient to carry out when creeping into；It is integrated with
Mud line manifold, it is simple to control the break-make of mud, convenient monitoring mud pressure；Complete machine complete function, integrated level are high, Technological adaptability
By force, CBM Drilling construction demand is met.
Accompanying drawing explanation
Fig. 1 is truck-mounted drilling rig overall structure schematic diagram of the present invention；
Fig. 2 is power unit structure schematic diagram of the present invention；
Fig. 3 is unit head front view of the present invention；
Fig. 4 is that unit head of the present invention tilts state left view；
Fig. 5 is mud line manifold structural representation of the present invention；
Fig. 6 is truck-mounted drilling rig of the present invention (without apparatus for feeding) top view.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
In figure, 1 chassis, 2 radiators, 3 power units, 4 fuel tanks, 5 apparatus for feedings, 6 planker oil cylinders,
7 plankers, 8 unit heads, 9 bench boards, 10 mast supporting legs, 11 mechanical lags, 12 rear support legs, 13 mud tubes
Remittance, 14 pitching oil cylinders, 15 front leg struts, 16 opening arrangements, 3.1 air compressor machines, 3.2 clutches, 3.3 diesel engines,
3.4 transfer cases, 3.5 hydraulic pump groups, 8.1 upper slide rests, 8.2 motors, 8.3 casings, 8.4 frictional disks, 8.5 masters
Axle, 8.6 floating axles, 8.7 brakes, 8.8 angle modulation oil cylinders, 8.9 locked cylinders, 8.10 bearing pins, 8.11 rotations
Dish, 13.1 pulp-inlet pipes, 13.2 main valves, 13.3 pressure measuring tie-ins, 13.4 grout outlets, 13.5 first oil cylinders, 13.6
Second oil cylinder, 13.7 bypass valves.
Embodiment:
The embodiment of the present invention provides a kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, as it is shown in figure 1, this brill
Machine by radiator 2, power unit 3, fuel tank 4, pitching oil cylinder 14, front leg strut 15, rear support leg 12, apparatus for feeding 5, planker oil cylinder 6,
Planker 7, unit head 8, bench board 9, mast supporting leg 10, mechanical lag 11, mud line manifold 13 etc. are integrated on vehicle chassis 1,
Chassis 1 is used to transport, mobility strong.
Being concave structure in the middle of chassis 1, as shown in Figure 6, power unit 3 and apparatus for feeding 5 weight are relatively big, along chassis 1
Central axis arrange, wherein power unit 3 is arranged in indent position, chassis 1, reduces height of car, and other devices are distributed in the end
On dish 1, integrated level is high.
As in figure 2 it is shown, power unit 3 is by diesel engine 3.3, transfer case 3.4, hydraulic pump group 3.5, clutch 3.2 and pneumatics
Machine 3.1 forms, and the output of diesel engine 3.3 one end drives hydraulic pump group 3.5 through transfer case 3.4, it is achieved each execution machine of hydraulic system
The action of structure, the other end drives air compressor machine 3.1 by clutch 3.2.When clutch 3.2 closes, diesel engine 3.3 two ends export,
Simultaneously drive air compressor machine 3.1 and hydraulic pump group 3.5, it is not necessary to join outward air-compressor set, can Rapid Implementation air drilling；Clutch
During 3.2 separation, diesel engine 3.3 only drives hydraulic pump group to work.
Two front leg struts 15 of truck-mounted drilling rig and two rear support legs 12 are distributed in the surrounding on chassis 1, and rig entirety center of gravity is big
Cause to be positioned at the geometric center of gravity of four supporting legs.
Pitching oil cylinder 14 two ends are connected with chassis 1 and planker 7 respectively, and pitching oil cylinder 14 stretches out, and can realize apparatus for feeding 5
Erecting, pitching oil cylinder 14 is retracted, it is achieved the withdrawal of apparatus for feeding 5；Under the effect of planker oil cylinder 6, planker 7 and apparatus for feeding 5
Can relatively slide, adjust the height of opening arrangement 16.
There are mast supporting leg 10 and mechanical lag 11 in apparatus for feeding 5 lower end of truck-mounted drilling rig, and mast supporting leg 10 can feed relatively
Device 5 stretches, and makes apparatus for feeding 5 reliable contacts ground, mechanical lag 11 be consolidated by screw thread, and one end is fixed with apparatus for feeding 5,
Other end is screwed out by screw thread, is compacted with the base plate of mast supporting leg 10, prevents mast supporting leg 10 from using appearance retraction for a long time
Phenomenon.
As shown in Figure 3-4, the unit head 8 of truck-mounted drilling rig by motor 8.2, casing 8.3, upper slide rest 8.1, angle modulation oil cylinder 8.8,
Main shaft 8.5, floating axle 8.6, brake 8.7, frictional disk 8.4, rotating disk 8.11 etc. form.Main shaft 8.5 front end by spline with
Floating axle 8.6 is coaxially connected, and floating axle 8.6 is connected with drilling tool,
The motor 8.2 of truck-mounted drilling rig unit head 8, casing 8.3, main shaft 8.5, floating axle 8.6, rotating disk 8.11 etc. are in angle modulation
Under oil cylinder 8.8 effect, can rotate to an angle by relatively small planker 8.1, it is simple to floating axle 8.6 is connected with ground drilling tool.
Locked cylinder 8.9 is fixed on upper slide rest 8.1, and when main shaft 8.5 vertically creeps into, locked cylinder 8.9 stretches out, and drives bearing pin
8.10 insert in rotating disk 8.11 hole, make main shaft be in the lock state.
In drilling process, drilling tool is relative with floating axle 8.6 with main shaft 8.5 axial float, reduces the vibration impact on drilling tool.
The brake 8.7 of truck-mounted drilling rig unit head 8 is connected with upper slide rest 8.1, and frictional disk 8.4 is co-axially mounted with main shaft 8.5,
Synchronous rotary, frictional disk 8.4 is positioned at brake 8.7 and brakes opening range, when frictional disk 8.4 is held in brake 8.7 tightly, can make to rub
Wiping dish 8.4 and main shaft 8.5 are in on-position, it is simple to implement directional drilling at the bottom of hole.
As it is shown in figure 5, the mud line manifold 13 of truck-mounted drilling rig is by pulp-inlet pipe 13.1, grout outlet 13.4, main valve the 13.2, first oil
Cylinder 13.5, pressure measuring tie-in the 13.3, second oil cylinder 13.6, bypass valve 13.7 form.Pulp-inlet pipe 13.1 and outside drilling fluid supply dress
Putting connection, grout outlet 13.4 is connected with drilling system mud channel；In the middle of pulp-inlet pipe 13.1 and grout outlet 13.4, main valve is set
13.2, the first oil cylinder 13.5 opening and closing main valve 13.2, it is achieved the break-make of liquid in mud line manifold 13.
Arranging pressure measuring tie-in 13.3 on mud line manifold 13 main line of truck-mounted drilling rig, outside pressure tester is connected to pressure measurement and connects
On 13.3, mud pressure can be monitored in real time.
Arranging bypass valve 13.7 on mud line manifold 13 main line of truck-mounted drilling rig, the second oil cylinder 13.6 realizes bypass valve 13.7
Opening and closing, bypass valve 13.7 opens, main line mud pressure release.
The work progress after said structure is used to include creeping into set-up procedure and transition transportation.
Wherein, the step creeping into preparation flow process is as follows:
Step 1.1: truck-mounted drilling rig positions, and according to well layout and bore position, truck-mounted drilling rig is moved to precalculated position；
Step 1.2: by two front leg struts 15 and two rear support legs 12 by chassis 1 leveling, makes tire depart from ground, chassis
About 1 inclination angle is not more than 3 °, and front and back inclination angle is not more than 3 °；Four supporting legs should intersect operation, it is to avoid occurs that single supporting leg stretched out
Situation long, that car body obliqueness is excessive；Apparatus for feeding 5 is forbidden after erecting to operate front leg strut 15 and rear support leg 12；
Step 1.3: show bench board 9 to correct position, it is ensured that apparatus for feeding 5 does not occurs with bench board 9 during erecting
Collision；
Step 1.4: erect apparatus for feeding 5 by pitching oil cylinder 4, makes angle 90 ± 3 ° between apparatus for feeding 5 and chassis 1；
Step 1.5: adjust apparatus for feeding 5 height by planker oil cylinder 6, makes the space between opening arrangement 16 and ground full
Foot installs the requirement of the auxiliary equipments such as preventer；
Step 1.6: mast supporting leg 10 stretches out, and contacts with ground；
Step 1.7: operation mechanical lag 11, front end contacts with mast supporting leg 10, prevents mast supporting leg 10 from bouncing back；
Step 1.8: connected by planker oil cylinder 6 oil inlet and outlet, makes planker oil 6 cylinders be in floating bit, and whole apparatus for feeding 5 falls
Actual arrival ground, in drilling process, load is not transferred to chassis 1, i.e. completes the rig preparation before creeping into.
It is as follows that truck-mounted drilling rig transition transport prepares flow process:
Step 2.1: make planker oil cylinder (6) oil inlet and outlet separate；
Step 2.2: pack up mechanical lag 11；
Step 2.3: regain mast supporting leg 10；
Step 2.4: operation pitching oil cylinder 14, makes apparatus for feeding 5 be recovered to level；
Step 2.5: regain bench board 9 to travel position；
Step 2.6: regain front leg strut 15 and rear support leg 12 completely, in operating process, should intersect operation front leg strut 15 and after
Supporting leg 12, it is to avoid inclination angle, chassis 1 is excessive；
Step 2.7: fix bench board 9 parts such as grade, i.e. completes truck-mounted drilling rig transition transport and prepares.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing 1 chassis, 2 radiators, 3 power units, 4 fuel tanks, 5 feeding dress
Put, 6 planker oil cylinders, 7 plankers, 8 unit heads, 9 bench boards, 10 mast supporting legs, 11 mechanical lags, after 12
Lower limb, 13 mud line manifolds, 14 pitching oil cylinders, 15 front leg struts, 16 opening arrangements, 3.1 air compressor machines, 3.2 clutches,
3.3 diesel engines, 3.4 transfer cases, 3.5 hydraulic pump groups, 8.1 upper slide rests, 8.2 motors, 8.3 casings, 8.4 rub
Wiping dish, 8.5 main shafts, 8.6 floating axles, 8.7 brakes, 8.8 angle modulation oil cylinders, 8.9 locked cylinders, 8.10 pins
Axle, 8.11 rotating disks, 13.1 pulp-inlet pipes, 13.2 main valves, 13.3 pressure measuring tie-ins, 13.4 grout outlets, 13.5
The terms such as one oil cylinder, 13.6 second oil cylinders, 13.7 bypass valves, but it is not precluded from using the probability of other term.Use
These terms are only used to describe and explain more easily the essence of the present invention；It is construed as any additional limit
System is all contrary with spirit of the present invention.
Claims (10)
1. the truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction, it is characterised in that including: chassis (1), power unit
And apparatus for feeding (5) (3)；Wherein, power unit (3) and apparatus for feeding (5) are arranged along chassis (1) central axis；Described chassis
(1) surrounding is respectively provided with front leg strut (15) and rear support leg (12)；Described power unit (3) is arranged at the interior of centre, chassis (1)
Recess position；Being provided with on described apparatus for feeding (5) can be along the planker (7) of longitudinal sliding motion；Described planker (7) passes through pitching oil cylinder
(14) it is connected with chassis (1)；Unit head (8) is set on described apparatus for feeding (5).
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 1, it is characterised in that institute
State power unit (3) to include: diesel engine (3.3), wherein: one end output of described diesel engine (3.3) drives through transfer case (3.4)
Hydraulic pump group (3.5), the other end drives air compressor machine (3.1) by clutch (3.2).
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 3, it is characterised in that institute
There are mast supporting leg (10) and mechanical lag (11) in apparatus for feeding (5) lower end stating truck-mounted drilling rig, and mast supporting leg (10) can be given relatively
Entering device (5) flexible so that apparatus for feeding (5) reliable contacts ground, one end of mechanical lag (11) is fixing connects apparatus for feeding
(5), the other end is screwed out by screw thread and is compacted on the base plate of mast supporting leg (10).
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 1, it is characterised in that institute
State unit head (8) to include: main shaft (8.5) and the coaxially connected floating axle (8.6) of main shaft (8.5)；Motor (8.2) and main shaft
(8.5) casing (8.3) it is arranged in；Described casing (8.3) is fixed on upper slide rest (8.1) by rotating disk (8.11), described rotation
Rotating disk (8.11) connects angle modulation oil cylinder (8.8) by pivoted arm.
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 4, it is characterised in that institute
State and in rotating disk (8.11), be provided with hole, location；Locked cylinder (8.9), described locking oil it is provided with on described upper slide rest (8.1)
The stroke lever of cylinder (8.9) connects the bearing pin (8.10) matched with hole, location.
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 1, it is characterised in that institute
State floating axle (8.6) to be connected with main shaft (8.5) by spline, and can be with main shaft (8.5) axial float.
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 1, it is characterised in that institute
State and on main shaft (8.5), be co-axially mounted frictional disk (8.4), described upper slide rest (8.1) arranges brake (8.7), described frictional disk
It is positioned at the braking opening range of brake (8.7).
A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction the most according to claim 1, it is characterised in that also
Including: mud line manifold (13)；Described mud line manifold (13) including:
The pulp-inlet pipe (13.1) being connected with outside drilling fluid feedway, the grout outlet being connected with drilling system mud channel
(13.4) pressure measuring tie-in (13.3), being connected with outside pressure tester；
In the middle of described pulp-inlet pipe (13.1) and grout outlet (13.4), main valve (13.2) is set；Described grout outlet (13.4) connecting bypass
Valve (13.7).
9. one kind utilizes the method that above-mentioned truck-mounted drilling rig carries out constructing, it is characterised in that including: creep into preparation flow process, described brill
Enter to prepare flow process to farther include:
Step 1.1, truck-mounted drilling rig positions, according to well layout and bore position, truck-mounted drilling rig is moved to precalculated position；
Step 1.2, by two front leg struts (15) and two rear support legs (12) by chassis (1) leveling, makes tire depart from ground, its
In, the inclination angle, left and right of chassis (1) is not more than 3 °, and front and back inclination angle is not more than 3 °；
Step 1.3, shows bench board (9) to correct position, it is ensured that apparatus for feeding (5) is not sent out with bench board (9) during erecting
Raw collision；
Step 1.4, erects apparatus for feeding (5) by pitching oil cylinder (14), makes the angle between apparatus for feeding (5) and chassis (1) be
Between 87 ° and 93 °；
Step 1.5, adjusts apparatus for feeding (5) highly by planker oil cylinder (6), makes the space between opening arrangement (16) and ground
Meet the requirement installing the auxiliary equipments such as preventer；
Step 1.6, stretches out mast supporting leg (10), contacts with ground；
Step 1.7, operation mechanical lag (11), front end contacts with mast supporting leg (10), prevents mast supporting leg (10) from bouncing back；
Step 1.8, connects planker oil cylinder (6) oil inlet and outlet, makes planker oil cylinder (6) be in floating bit, whole apparatus for feeding (5)
Implementing to ground, in drilling process, load is not transferred to chassis (1), completes the rig preparation before creeping into.
Construction method the most according to claim 9, it is characterised in that described truck-mounted drilling rig transition transport prepares flow process bag
Include:
Step 2.1, makes planker oil cylinder (6) oil inlet and outlet separate；
Step 2.2, packs up mechanical lag (11)；
Step 2.3, withdrawal can apparatus for feeding (5) relatively flexible so that the mast supporting leg on apparatus for feeding (5) reliable contacts ground
(10)；
Step 2.4, operation pitching oil cylinder (14), make apparatus for feeding (5) be recovered to level；
Step 2.5, regains bench board (9) to travel position；
Step 2.6, regains front leg strut (15) and rear support leg (12) completely, in operating process, should intersect operation front leg strut (15) and
Rear support leg (12), it is to avoid chassis (1) inclination angle is excessive；
The parts such as bench board (9) are fixed by step 2.7, i.e. complete truck-mounted drilling rig transition transport and prepare.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700833.8A CN106285467A (en) | 2016-08-22 | 2016-08-22 | A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700833.8A CN106285467A (en) | 2016-08-22 | 2016-08-22 | A kind of truck-mounted drilling rig being applicable to ground coal bed gas wellbore construction and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958417A (en) * | 2017-05-02 | 2017-07-18 | 中煤科工集团西安研究院有限公司 | A kind of Split-type vehicle-carrying rig and its construction method |
| CN108609050A (en) * | 2018-07-06 | 2018-10-02 | 三江瓦力特特种车辆有限公司 | A kind of chassis vehicle for carrying all-hydraulic top drive drilling |
| CN113982479A (en) * | 2021-10-13 | 2022-01-28 | 中煤科工集团西安研究院有限公司 | Hybrid power type vehicle-mounted drilling machine and using method |
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| CN108609050A (en) * | 2018-07-06 | 2018-10-02 | 三江瓦力特特种车辆有限公司 | A kind of chassis vehicle for carrying all-hydraulic top drive drilling |
| CN113982479A (en) * | 2021-10-13 | 2022-01-28 | 中煤科工集团西安研究院有限公司 | Hybrid power type vehicle-mounted drilling machine and using method |
| CN113982479B (en) * | 2021-10-13 | 2023-08-11 | 中煤科工集团西安研究院有限公司 | Hybrid power type vehicle-mounted drilling machine and use method thereof |
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Application publication date: 20170104 |