CN116591593A - Drilling machine capable of realizing gas lift reverse circulation construction and combined drilling construction method - Google Patents
Drilling machine capable of realizing gas lift reverse circulation construction and combined drilling construction method Download PDFInfo
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- CN116591593A CN116591593A CN202310525150.3A CN202310525150A CN116591593A CN 116591593 A CN116591593 A CN 116591593A CN 202310525150 A CN202310525150 A CN 202310525150A CN 116591593 A CN116591593 A CN 116591593A
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- drilling
- reverse circulation
- construction
- gas lift
- drill rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 209
- 238000010276 construction Methods 0.000 title claims abstract description 123
- 239000002002 slurry Substances 0.000 claims abstract description 43
- 230000007704 transition Effects 0.000 claims abstract description 40
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 210000000078 claw Anatomy 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 239000002893 slag Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drilling machine capable of realizing gas lift reverse circulation construction, which comprises a main machine with a gas lift reverse circulation construction device, wherein the main machine comprises a mast and a power head arranged on the mast, the upper end of the mast is provided with a gooseneck pulley yoke, a hanging bracket is arranged on the mast below the gooseneck pulley yoke in a sliding manner, the lower end of the hanging bracket is provided with a tee joint, the tee joint is divided into two parts which can rotate up and down relatively, the upper part is provided with a slurry discharging port and an air channel interface, the lower part is provided with a driving drill rod, the power head is also connected with the driving drill rod in a matched manner, the lower end of the driving drill rod is connected with the reverse circulation drill rod through a transition drill rod, the lower end of the reverse circulation drill rod is provided with a transition joint, and the lower end of the transition joint is provided with a drill bit system, and the drilling machine has the beneficial effects that: the device adopts the rotary drilling rig, can realize self-walking, has better maneuverability, can reduce the frequency of connecting rods and greatly improves the construction efficiency.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a drilling machine capable of realizing gas lift reverse circulation construction and a combined drilling construction method.
Background
In recent years, along with the acceleration of construction steps of large bridges and offshore wind power engineering, particularly in the construction of some cross-sea bridges, the requirements on the construction diameter and the construction depth of pile foundations are larger and larger, a large number of large-diameter ultra-deep pile projects are generated, the construction diameters are required to pass through hard rock stratum, the deepest construction depth of the completed Hangsha platform railway spiced river ultra-large bridge reaches 143m, and the construction depth of a proposed through Su Jia courage railway sea salt county section is required to 156m, so that the construction equipment and the construction efficiency are not challenged.
The rotary drilling rig has been widely applied to various infrastructure constructions by the remarkable advantages of convenient construction, high efficiency, good environmental protection and the like, but four-section machine lock rods are commonly used in hard rock construction by the rotary drilling rig in the market at present, because the self height of the mast of the rotary drilling rig is higher, the four-section machine lock rods are telescopic, a connecting rod is not needed, soil can be directly lifted in the drilling process, the drilling efficiency is high, the drilling depth can only reach about 80m, a few five-section machine lock rods can reach about 110m, the ultra-large tonnage rotary drilling rig is needed by the five-section machine lock rods, the weight of a host machine can be greatly increased, the trestle cannot meet the stress requirement, and in addition, even if the five-section machine lock rods are adopted, the problems of high operation difficulty and high failure rate exist in the five-section machine lock rods, and the deep hole hard rock construction above 110m cannot be realized in China at present by adopting the rotary drilling rig; the depth of the reverse circulation drilling machine can be more than 110m, but the mobility is poor due to no walking chassis, a connecting rod is needed in the drilling process, and the length of the connecting rod is limited to be within 4m each time due to the height limit of the mast of the reverse circulation drilling machine, so that a large amount of construction time is needed in the process of connecting the connecting rod, and the drilling process belongs to full-section drilling; therefore, for the above reasons, there is a need for a drilling machine that can achieve drilling depths of 80 meters or even 110m or more, and that meets the requirements of hard rock ultra-deep piles of 110m or more, has high construction efficiency, and can achieve self-walking.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the drilling machine and the construction method capable of realizing gas lift reverse circulation construction solve the problems that a rotary drilling rig cannot form holes with the construction depth of more than 110m in a hard rock stratum, the reverse circulation drilling machine is poor in mobility, high in connection rod times and low in efficiency.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a rig that can realize reverse circulation construction of gas lift, includes the host computer that has reverse circulation construction device of gas lift, including mast and the unit head of setting on the mast in the host computer, the mast upper end is provided with the gooseneck pulley yoke, is located slide on the mast of gooseneck pulley yoke below is provided with the gallows, the main roll Yang Gangsi rope on the host computer passes through the gooseneck pulley yoke and is connected with the gallows cooperation, can realize rising and the decline of gallows, the gallows lower extreme is provided with the tee bend, the tee bend divide into upper and lower two parts that can relatively rotate, and the upper portion is provided with the slurry discharge mouth and the airway interface, and the lower part is provided with the initiative drilling rod, the unit head also is connected with initiative drilling rod cooperation to can drive initiative drilling rod rotation, initiative drilling rod lower extreme is equipped with reverse circulation drilling rod through transition drilling rod connection, reverse circulation drilling rod lower extreme is equipped with the transition joint, the transition joint lower extreme is provided with drill bit system.
Further, the gooseneck boom pulley frame mainly comprises a pulley frame and a plurality of pulleys, and can realize lifting force not lower than four multiplying factors.
Further, the hanging bracket mainly comprises a guide frame, a holding claw, a lifting lug and a movable pulley block, wherein the guide frame and the holding claw are connected to a guide rail of a mast through a pin shaft, so that the hanging bracket can move up and down, the lifting lug is connected with a tee joint through a bolt, and the movable pulley block is connected with the guide frame through a transverse pin shaft and can rotate relatively;
further, the driving drill rod comprises a main body, a torque transmission keybar and a pressurizing block, and a key slot matched with the torque transmission keybar is arranged in the power.
Further, the drill bit system comprises a guide, a counterweight and a drill bit, wherein the drill bit system is connected with the reverse circulation drill rod through a transition joint, and the guide is used for righting the drill bit system.
Further, the main machine with the gas lift reverse circulation construction device adopts a rotary drilling rig, and the mast is provided with supporting legs for supporting the whole machine.
Further, the mast and the gooseneck pulley frame, the tee joint and the driving drill rod, the driving drill rod and the transition joint and the reverse circulation drill rod are all connected through flange plates.
Further, the tee joint, the driving drill rod, the transition drill rod, the reverse circulation drill rod and the drill bit system are internally provided with slurry passing channels, and annular cavities are arranged between the slurry passing channels and the main body.
A combined drilling construction method of a drilling machine capable of realizing gas lift reverse circulation construction comprises the following steps:
s1: placing a steel pile casing at the hole of the cast-in-place pile, positioning and meeting the positioning requirement;
s2: the rotary drilling rig is used for drilling a certain depth by adopting rotary drilling, and then drilling and shifting in the first stage are completed;
s3: the orifice device is placed, so that gas lift reverse circulation rotary digging is realized, drilling is continued until the design depth is reached, and second-stage drilling is completed;
s4: in the second stage drilling process, mud hole cleaning is realized at the same time, and after drilling to the designed depth is finished, hole cleaning is finished at the same time;
s5: the drilling machine capable of realizing gas lift reverse circulation is shifted, and a crane is adopted to lower the reinforcement cage;
s6: performing secondary hole cleaning
S7: and pouring concrete into the pile through the pouring guide pipe.
Further, the orifice device in step S3 includes base, sliding plate, drive unit, orifice turns over board, construction hole and drilling rod setting hole, wherein the base is formed through bolted connection by left longeron, right longeron, front longeron and back longeron, sliding plate bottom has the slide rail, can slide back and forth on left longeron and right longeron, it is spacing to control through the gyro wheel, when carrying out drill bit system and transferring, the sliding plate can slide and open, drive unit is used for promoting the sliding plate and carries out back and forth sliding on left longeron and right longeron, the orifice turns over board and is connected through the round pin axle with the sliding plate, the convenience makes the circulation drilling rod pass through when turning over, the drilling rod setting hole is used for depositing lower section circulation drilling rod, be provided with detachable pad fork on the drilling rod setting hole, pad fork is used for fixing next section drilling rod.
Further, the orifice turning plate and the front end of the cushion fork are both arranged into arc structures, the inner diameters of the arc structures are respectively smaller than the inner diameters of the corresponding construction hole and the drill rod placement hole, and the arc structures extend into the construction hole or the drill rod placement hole during covering.
Further, the driving part is a slipping cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. the main machine of the drilling machine capable of realizing gas lift reverse circulation construction adopts the rotary drilling machine, so that self-walking can be realized, the mobility is better, and the movement is convenient;
2. because the mast of the rotary drilling rig is higher than that of a traditional reverse circulation drilling rig, in the process of connecting rods, the reverse circulation drilling rod with the length of 8 meters can be connected with each connecting rod, so that the number of times of connecting rods can be reduced, and compared with the construction of the traditional reverse circulation drilling rig, the process can save at least half of construction time and greatly improve the construction efficiency.
3. The rotary drilling rig is adopted as the main machine of the drilling rig capable of realizing gas lift reverse circulation construction, after the original single pulley frame is removed, the gooseneck pulley frame and the hanging frame can be directly installed on the rotary drilling main machine, the rotary drilling rig can be universal, a structure to be installed does not need to be reserved in advance, and the rotary drilling rig is more convenient to use.
4. The invention provides a combined drilling construction method of a drilling machine capable of realizing gas lift reverse circulation construction, which is characterized in that a rotary drilling main machine is adopted to drill holes within 80 meters, the construction is convenient, the construction efficiency is high, more than 80 meters, the drilling machine capable of realizing gas lift reverse circulation construction is adopted, and an orifice device is matched, compared with the traditional reverse circulation drilling machine, the number of extension bars is reduced, at least more than half of time can be saved, the overall construction efficiency is greatly improved, in addition, the drilling machine capable of realizing gas lift reverse circulation construction can realize self-walking, the maneuverability is stronger, the convenience is provided for construction, and the overall construction efficiency is also improved.
5. The invention also realizes the problem that the construction cannot be performed when the construction depth of the hard rock ultra-deep pile exceeds 110m, and can meet the construction requirement of the hard rock ultra-deep bored pile.
Drawings
FIG. 1 is a schematic diagram of the whole structure of a drilling machine capable of realizing gas lift reverse circulation and rotary digging construction method;
FIG. 2 is a schematic view of a gooseneck boom of the present invention;
FIG. 3 is a schematic view of a hanger according to the present invention;
FIG. 4 is a schematic view of a tee structure of the present invention;
FIG. 5 is a schematic view of the active drill pipe structure of the present invention;
FIG. 6 is a schematic diagram of the construction steps of a combined drilling construction method of a drilling machine capable of realizing gas lift reverse circulation construction;
FIG. 7 is a schematic top view of an orifice device of the present invention;
FIG. 8 is a schematic view of the orifice device of the present invention in a bottom view;
FIG. 9 is a schematic diagram of a pressurized drill bit system under gas lift reverse circulation drilling construction in accordance with the present invention;
FIG. 10 is a schematic diagram of a pressurized drill bit system for gas lift reverse circulation drilling construction in accordance with the present invention;
as shown in the figure:
1. a host;
2. a gooseneck boom carriage; 21. a pulley frame; 22. a pulley;
3. a hanging bracket; 31. holding claws; 32. a pin shaft; 33. a guide frame; 34. a movable pulley block; 35. a transverse pin shaft; 36. lifting lugs;
4. a tee joint; 41. a slurry discharge port; 42. lifting lugs; 43. an airway interface; 44. a flange connection end;
5. a power head;
6. a driving drill rod; 61. a main body; 62. a ring cavity; 63. a pulp passage; 64. a torque transmission key bar; 65. pressurizing the block;
7. a transition drill rod;
8. reverse circulation drill pipe;
9. an orifice device; 91. a slide rail; 92. a base; 93. an orifice turning plate; 94. a sliding oil cylinder; 95. a roller; 96. a fork; 97. a drill rod placement hole; 98. a sliding plate; 99. a construction hole; 921. a right longitudinal beam; 922. a rear side member; 923. a front side member; 924. a left longitudinal beam;
10. a stabilizer;
11. a transition joint;
12. a drill bit system; 121. a guide; 122. a counterweight; 123. a drill bit;
13. an air compressor;
14. a mud circulation tank;
15. a mud purification system;
16. a support leg;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 5, the present invention provides a drilling machine capable of realizing reverse circulation construction of gas lift, comprising: the main machine 1, the air compressor 13 connected with the air passage interface 43, the mud circulation box 14 and the mud purification system 15 connected with the mud discharge port 41, the gooseneck pulley yoke 2, the hanging bracket 3, the tee joint 4, the power head 5, the driving drill rod 6, the transition drill rod 7, the reverse circulation drill rod 8, the reverse circulation drill rod stabilizer 10, the transition joint 11, the drill bit system 12 and the orifice device 9.
The gooseneck pulley yoke 2 mainly comprises a pulley yoke 21 and a pulley 22, when in use, the original single pulley yoke on the mast of the rotary drilling rig is detached and connected through an original flange structure, and the gooseneck pulley yoke 2 is directly installed, so that an original reserved installation structure of the rotary drilling rig is not needed, the installation is convenient, a main coil Yang Gangsi rope on a rotary drilling host platform passes through a pulley block on the gooseneck pulley yoke 2 to be connected with the hanging bracket 3, and the two pulleys 22 on the gooseneck pulley yoke 2 and the movable pulley block 34 on the hanging bracket 3 are matched together to form four-time lifting force, so that the lifting force requirement during reverse circulation construction is met, and more than four times of lifting force can be formed by adding the pulley block according to actual needs.
The hanger 3 mainly comprises a guide frame 32, a holding claw 31, a connecting lifting lug 36 and a movable pulley block 34, wherein the guide frame 32 and the holding claw 31 are connected through a pin shaft 35 and then are fixed with a mast guide rail of a rotary drilling rig, the lifting lug 36 plays a role in guiding when moving up and down, the lifting lug 36 is connected with the tee joint 4 through a pin shaft and is used for lifting or lowering the tee joint 4 and the lower parts, the movable pulley block 34 is connected with the guide frame 32 through a transverse pin shaft 35, relative rotation can be realized, the quadruple lifting force can be realized, and the setting of the hanger 3 can ensure that a gas lift reverse circulation drill rod 8 and a drill bit system move up and down along the mast and remain stable.
The tee 4, the upper and lower parts of the tee can rotate relatively, the upper part is connected with the hanger 3 through the lifting lug 42, the lower part is connected with the driving drill rod 6 through the flange connection end 44, in addition, the slurry discharging port 41 at the upper end of the tee 4 is communicated with the external slurry circulation box 14 and the slurry purifying system 15, and the air passage port 43 is connected with the output end of the air compressor 13.
The driving drill rod 6 mainly comprises a main body 61, a slurry passing channel 63, a torque transmission keybar 64 and a pressurizing block 65, wherein the slurry passing channel 63 is positioned in the main body and used for returning slurry, an annular cavity 62 between the main body 61 and the slurry passing channel 63 is used for a compressed air channel of the air compressor 13, the torque transmission keybar 64 is used for transmitting output torque of the rotary drilling rig power head 5 to the reverse circulation drill rod 8 and the drill bit system 12, and the pressurizing block 65 is used for transmitting pressurizing force to the drill bit.
And the transition drill rod 7 is used for connecting the driving drill rod 6 with the reverse circulation drill rod 8.
Because the mast of the rotary drilling rig is higher than the traditional reverse circulation drill rod, the length of the reverse circulation drill rod 8 can be up to 8m, and the internal structure of the reverse circulation drill rod 8 is consistent with that of the market, so that repeated complaints are not needed.
A transition joint 11 for connection of the reverse circulation drill pipe 8 to the drill bit system 12.
Drill bit system 12 includes a pilot 121, a weight 122, and a drill bit 123, wherein pilot 121 is primarily used for centralizing drill bit system 12, weight 122 is used for increasing drilling pressure to drill bit 123, the number of installations can be selected as desired, drill bit 123 is primarily used for milling drilling into a formation, and a slag hole is provided for post-formation discharge after milling.
Wherein, the tee joint 4, the transition drill rod 7, the reverse circulation drill rod 8, the transition joint 11 and the drill bit system 12 are provided with grouting channels and annular cavities which are consistent with the internal structure of the active drill rod 6, and the grouting channels 63 and the annular cavities 62 are mutually connected and vertically communicated, thereby facilitating the entry of compressed gas and the upward flow of slurry.
The orifice device 9 comprises a base 92, a sliding plate 98, a sliding oil cylinder 94, an orifice turning plate 93, a construction hole 99 and a drill rod placement hole 97, wherein the base is formed by connecting a left longitudinal beam 924, a right longitudinal beam 921, a front longitudinal beam 923 and a rear longitudinal beam 922 through bolts, and the orifice device is detachable and convenient to transport; the bottom of the sliding plate 98 is provided with a sliding rail 91, the sliding plate 98 can slide back and forth on the left and right longitudinal beams 924921, the left and right longitudinal beams are provided with rollers 95 for limiting, the sliding oil cylinder 94 is used for pushing the sliding plate 98 to slide back and forth on the left and right longitudinal beams 924 and 921, when the drill bit system 12 is put down, the sliding oil cylinder 94 is used for opening the sliding plate 98 to the front and back maximum position, the orifice turning plate 93 on the sliding plate 98 is in an open state, the aperture of a construction hole 99 is ensured to be maximum, and thus the drill bit system 12 is put in conveniently; the orifice turning plate 93 is connected with the sliding plate 98 through a pin shaft, and can be opened by an oil cylinder or manually, so that the reverse circulation drill rod 8 can pass through conveniently, and the reverse circulation drill rod 8 can be replaced conveniently; the rod receiving hole 97 is used for storing the next section of the reverse circulation rod 8, and is provided with a spacer fork 96 for fixing the next section of the reverse circulation rod 8.
The drilling machine capable of realizing gas lift reverse circulation construction mainly comprises the following concrete implementation processes:
in the embodiment, a rotary drilling rig is used as a main machine 1 and provides power, but the embodiment is not limited to the rotary drilling rig, as long as a working device for the gas lift reverse circulation construction is configured on the main machine, a slurry protection hole wall principle is used, meanwhile, in the whole drilling construction process, compressed air generated by an air compressor 13 enters through an air passage interface 43 on a tee joint 4, passes through a whole annular cavity 62 and then is injected into the bottom of a bored pile hole, generated negative pressure is used as a power source, slurry and drilling residues are discharged to a slurry circulation box 14 on the ground through a whole slurry passing channel 63, the slurry in the slurry circulation box 14 flows through a slurry treatment system 15, and the treated slurry flows back into the bored pile hole again.
The specific implementation process is as follows:
firstly, a quadruple rate pulley yoke 2 is required to be installed on a main machine mast of a rotary drilling rig, after the installation is completed, a hanging bracket 3, a tee joint 4, a driving drill rod 6 and a transition drill rod 7 in a gas lift reverse circulation working device are connected and installed through bolts, wherein the hanging bracket 3, the tee joint 4 and the driving drill rod 6 are connected, then the driving drill rod 6 passes through a power head 5, and then the transition drill rod 7 is connected with the driving drill rod 6, so that the drilling rig capable of realizing gas lift reverse circulation construction is formed;
then the power head 5 is lowered to the lowest position, the inlet end of an external slurry discharging pipe is connected with the slurry discharging port 41 of the tee joint 4, the outlet end of the external slurry discharging pipe is connected to the slurry circulation box 14, and meanwhile, the output end of the air compressor 13 is connected with the air passage interface 43 on the tee joint 4 through an external air pipe;
the orifice device 9 is assembled again, wherein a left longitudinal beam 924, a right longitudinal beam 921, a front longitudinal beam 923 and a rear longitudinal beam 922 are connected through bolts to form a main frame, a sliding plate 98 is arranged on sliding rails 91 of the left longitudinal beam 924 and the right longitudinal beam 921 and is connected through a sliding oil cylinder 94, a limiting device 95 is arranged on the sliding plate 98 and is used for limiting the sliding plate 98 left and right in the pushing process of the sliding oil cylinder 94, orifice turning plates 93 are arranged on the front sliding plate and the rear sliding plate, the opening of the orifice turning plates 93 can be driven by the oil cylinder or manually operated, the orifice turning plates 93 are opened or covered, a reverse circulation drill rod 8 can be enabled to pass through or be blocked, a drill rod arranging hole 97 is used for storing the next section of reverse circulation drill rod 8, and a fork 96 is used for fixing the next section of reverse circulation drill rod 8;
during operation, the hole opening device 9 which is assembled is firstly placed above the hole position of the bored pile, so that the central hole position is ensured to be within the construction requirement range of the bored pile hole, the sliding plate 98 is opened to the front and rear maximum positions by using the sliding oil cylinder 94, the hole opening turning plate 93 on the sliding plate is in a turned-over state, and the maximum aperture of the construction hole 99 is ensured, thereby being beneficial to the lowering and installation of the drill bit system 12;
the drill bit system 12 with the transition joint 11 is lowered, the drill bit system 12 and the first section of reverse circulation drill rod 8 are lowered into a construction hole 99 on the orifice device 9, a flange plate at the upper end of the transition joint 11 is exposed out of the ground, the shaft ends of the sliding cylinders 94 extend out to drive the corresponding sliding plates 98 to move, the distance between the two sliding plates 98 is shortened, after the orifice turning plate 93 covers, the construction hole 99 on the orifice device 9 can be clamped at the lower side of the flange plate at the upper end of the transition joint 11, and the arc-shaped structure is arranged on the orifice turning plate 93, so that the clamping area of the orifice turning plate 93 and the flange plate is increased, and the drill bit system 12 and the transition joint 11 are clamped more firmly and stably;
then the transition drill rod 7 is detached from the transition joint 11, the drilling machine capable of realizing gas lifting reverse circulation construction automatically moves, the first section of reverse circulation drill rod 8 is lifted through the auxiliary winch steel wire rope, the lower end of the first section of reverse circulation drill rod 8 is inserted into the drill rod placement hole 97, and the first section of reverse circulation drill rod 8 is clamped on the lower side of the flange plate of the first section of reverse circulation drill rod 8 by the cushion fork 96, so that the first section of reverse circulation drill rod 8 is fixed, at the moment, the lower end of the first section of reverse circulation drill rod 8 is positioned in the bored concrete pile hole, and the flange plate at the upper end is exposed out of the ground and clamped on the upper side of the drill rod placement hole 97;
the drilling machine capable of realizing gas lift reverse circulation construction moves to the position of the orifice device 9, the drilling machine capable of realizing gas lift reverse circulation construction rotates and falls down the power head 5, and is connected and installed with the flange plate on the first section of reverse circulation drill rod through the transition drill rod 7, and as the upper end of the first section of reverse circulation drill rod is close to the ground, ascending operation is not needed, so that the installation difficulty is reduced, and the connection is more convenient; after connection, the cushion fork 96 is removed, then the main hoisting steel wire rope on the drilling machine capable of realizing gas lifting reverse circulation construction enables the power head 5 to ascend, the power head 5 ascends and pulls out a first section of reverse circulation drilling rod positioned in the drilling rod positioning hole 97 through the transition drilling rod 7, the drilling machine capable of realizing gas lifting reverse circulation construction is turned back, the lower end of the first section of reverse circulation drilling rod is in centering connection with the flange plate at the upper end of the transition joint 11, after connection is completed, the orifice turning plate 93 is opened, the aperture of the construction hole 99 on the orifice device 9 is enlarged, then the power head 5 is lowered by 8 meters through the main hoisting steel wire rope, namely the length of one reverse circulation drilling rod 8 is lowered by 8 meters through the main hoisting steel wire rope, then the orifice turning plate 93 is covered again, the first section of reverse circulation drilling rod 8 is clamped and fixed, the flange plate at the upper end of the first section of reverse circulation drilling rod is positioned at the upper side of the orifice device 9, at the moment, the transition drilling rod 7 is detached from the first section of reverse circulation drilling rod, the drilling machine capable of realizing gas lifting reverse circulation construction is moved again, the second section of reverse circulation construction is placed into the second reverse circulation drilling rod 97 through the hoisting steel wire rope to the same depth of the bottom of the first section of the reverse circulation drilling rod, and the reverse circulation drilling rod is sequentially placed at the bottom of the second reverse circulation drilling rod 8, and the reverse circulation drilling rod is connected to the bottom of the reverse circulation drilling rod, and the reverse circulation drilling rod is sequentially placed at the bottom of the reverse circulation drilling rod, and the reverse circulation drilling rod is connected to the reverse circulation pipeline, and the reverse circulation pipeline is connected to the reverse circulation pipeline;
after the whole system is connected, drilling is prepared, drilling mud is poured into a bored concrete pile hole, the bored concrete pile hole is kept to be higher than the underground water level by more than 1.5-2m, an air compressor 13 is started, air is injected into the bottom of the bored concrete pile hole, a host machine 1 and a power head 5 are started at the same time, the rotating speed is regulated to be a proper rotating speed, 5-6rpm is recommended, a main hoisting steel wire rope is lowered to drive a reverse circulation drill rod 8 and a drill bit system 12 to descend to a drilling stratum to start drilling, the air compressor 13 keeps working, and circulation of the mud slag discharging system is established;
the discharged drilling slag and the discharged slurry are collected by the slurry circulation box 14 and are treated by slurry treatment equipment, and the treated qualified slurry flows back into the bored concrete pile hole, so that the use cost of the construction slurry is reduced;
when the drilling machine drills down to 8m, the orifice turning plate 93 is covered, the uppermost reverse circulation drill rod 8 is clamped, the transition drill rod 7 and the uppermost reverse circulation drill rod 8 are detached, then the auxiliary winch of the drilling machine capable of realizing gas lift reverse circulation construction is used for hoisting the next reverse circulation drill rod to be placed on the drill rod placing hole 97 and clamped and fixed by the cushion fork 96, the rotary host machine 1 is used for connecting the transition drill rod 7 with the next reverse circulation drill rod in an aligned manner, the cushion fork 96 is removed, and the connected reverse circulation drill rod 8 is lifted upwards; and (3) returning the main machine 1, connecting the connected reverse circulation drilling rod with the reverse circulation drilling rod on the orifice turning plate 93, opening the orifice turning plate 93 to carry out next circulation drilling after the connection is completed, and the like until the drilling reaches the design depth.
In addition, during this process, one or more standard reverse circulation drill pipes 8 can be attached according to the depth of the hole, when the drill bit system 12 is installed, so that the installation is convenient.
6-9, the invention also provides a drilling machine capable of realizing gas lift reverse circulation construction and a construction method thereof;
the main construction process is as follows: when the construction is drilled, the first stage 0-80m adopts a rotary drilling rig to drill, adopts slurry to protect walls, and adopts a drilling tool according to stratum, wherein a sand scooping hopper is adopted as a covering layer, and a barrel drill is adopted as a stratum; drilling in a drilling mode of lifting the drill and unloading the soil, and supplementing slurry in time in the drilling process, wherein the slurry level is kept to be 1.5-2m higher than the underground water level; after drilling to the depth of 80m, entering a second stage, adopting the drilling machine construction capable of realizing gas lift reverse circulation construction, using a slurry protection hole wall principle, simultaneously in the whole drilling construction process, using compressed air generated by an air compressor 13 to be injected into the hole bottom through an air passage interface 43 on a tee joint 4, generating negative pressure as a power source, discharging slurry and drilling residues to a ground slurry circulation box 14 through a drill rod and an internal passage of the tee joint 4, enabling the slurry in the slurry circulation box 14 to flow through a slurry treatment system, and enabling the treated slurry to flow back into the hole again;
the specific implementation steps are as follows:
s1, placing a steel pile casing at a bored concrete pile hole position, positioning, and meeting positioning requirements: firstly, placing a steel pile casing at 99 positions of a construction hole, positioning, wherein the specification of the steel pile casing is determined according to the construction diameter and an upper covering layer, the wall thickness of the steel pile casing is generally required to be more than 16mm, the inner diameter exceeds the drilling diameter by 200mm, the length of the steel pile casing is more than 4m, and resetting the hole position after positioning, so that the requirement of the construction technical specification is met;
s2, positioning a drill bit and a steel casing in a construction hole position by a rotary drilling rig, aligning the drill bit with the steel casing, wherein a sand-bailing bucket drill bit is selected as a cover layer, a cylindrical drill bit is selected as a rock stratum, the sand-bailing bucket drill bit is selected as the cover layer, the drill bit with the diameter phi 3m can be directly used for drilling within the construction diameter phi 3m, grading drilling can be selected when the construction diameter exceeds the construction diameter phi 3m, phi 3m hole construction is selected, mud is filled into the hole after the drilling is completed to the length of the steel casing, the mud is continuously filled in the drilling process, the mud liquid level is kept to be 1.5-2m higher than the underground water level, and the drill bit with the diameter phi 3.5m is used for guiding and reaming the construction after the drilling of the cover layer is completed; and after drilling to the hard rock stratum, drilling by adopting a phi 3.5-phi 1.5m pilot cylinder drill, and drilling by adopting a phi 1.5m pilot hole until the drilling depth reaches 80 m. Drilling by adopting a phi 1.5-phi 2.0m reaming barrel after finishing phi 1.5m pilot hole drilling, and then preferentially selecting 0.5m as a grade until finishing the drilling requirement of the required construction diameter;
s3, placing an orifice device 9, placing a rotary drilling rig capable of realizing gas lift reverse circulation, continuing drilling from 80m later to the designed depth, and finishing the second stage drilling: the specific operation flow is that according to the construction method described above, the drilling machine capable of realizing gas lift reverse circulation is drilled to the designed depth, and the gas lift reverse circulation drilling directly adopts the full-section drill bit 123 to drill the hole once;
in addition, in the step 3, the gas lift reverse circulation construction can be performed by selecting two drilling modes, namely lower pressure drilling and upper pressure drilling. The difference is mainly that the drill bit system 12 has different compositions, the lower pressurized drilling is shown in fig. 9, and comprises a transition joint 11, a guide 121, a counterweight 122 and a drill bit 123, wherein the guide 121 is mainly used for righting the drill bit system, the counterweight 122 is used for increasing the drilling pressure for the drill bit 123, the installation quantity can be selected according to the requirement, the drill bit 123 is mainly used for milling and drilling the stratum, and a slag hole is formed for discharging the stratum after milling; as shown in FIG. 10, the upper pressurized drilling mainly comprises a transition joint 11 and a drill bit 123, wherein a reverse circulation drill rod stabilizer 10 is required to be added to a drill rod during drilling, and a main machine 1 is directly pressurized and transmitted to the drill bit 123 to recommend lower pressurized drilling preferentially;
s4, mud hole cleaning is realized in the drilling process, the slag discharged by the slag discharging pipe flows to the mud circulation box 14, and the mud after the treatment flows to mud treatment equipment and is continuously used in the hole position of the cast-in-situ pile after the treatment, so that the use cost of the mud is saved; drilling to the designed depth, and finishing hole cleaning at the same time;
s5, the main machine 1 of the rotary drilling rig capable of realizing reverse circulation of gas lift is shifted, a crane is adopted to lower the reinforcement cage, and the hole opening device 9 can be used for connecting and positioning the reinforcement cage when the reinforcement cage is lowered;
s6, performing secondary hole cleaning, lowering a perfusion catheter used for hole cleaning, and performing gas lift reverse circulation hole cleaning by using an air compressor 13 and the perfusion catheter;
s7, pouring concrete into the pile through the pouring guide pipe.
Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (12)
1. The utility model provides a rig that can realize reverse circulation construction of gas lift, includes host computer (1) that has reverse circulation construction device of gas lift, wherein including mast and power head (5) of setting on the mast in host computer (1), its characterized in that: the utility model discloses a drill bit system, including main frame (1), main frame (2), main frame (3), tee bend (4) are provided with on the mast of mast upper end, are located slide on the mast of gooseneck (2) below is provided with gallows (3), main roll Yang Gangsi rope on main frame (1) passes through gooseneck (2) and is connected with gallows (3) cooperation, can realize rising and decline of gallows (3), gallows (3) lower extreme is provided with tee bend (4), tee bend (4) divide into upper and lower rotatable two parts, and upper portion is provided with slurry discharging mouth (41) and airway interface (43), and the lower part is provided with initiative drilling rod (6), power head (5) also are connected with initiative drilling rod (6) cooperation to can drive initiative drilling rod (6) rotation, initiative drilling rod (6) lower extreme is equipped with reverse circulation drilling rod (8) through transition drilling rod (7) connection, reverse circulation drilling rod (8) lower extreme is equipped with transition joint (11), transition joint (11) lower extreme is provided with drill bit system (12).
2. The drilling machine capable of realizing gas lift reverse circulation construction according to claim 1, wherein the drilling machine is characterized in that: the gooseneck pulley yoke (2) mainly comprises a pulley yoke (21) and a plurality of pulleys (22), and can realize lifting force not lower than four multiplying factors.
3. The drilling machine capable of realizing gas lift reverse circulation construction according to claim 2, wherein the drilling machine is characterized in that: the lifting frame (3) mainly comprises a guide frame (33), a holding claw (31), lifting lugs (36) and a movable pulley block (34), wherein the guide frame (33) and the holding claw (31) are connected to a guide rail of a mast through a pin shaft (32), the lifting frame (3) moves up and down to play a role in guiding, the lifting lugs (36) are connected with a tee joint (4) through bolts, and the movable pulley block (34) is connected with the guide frame (33) through a transverse pin shaft (35) and can rotate relatively.
4. A drilling machine capable of realizing gas lift reverse circulation construction according to claim 3, wherein: the driving drill rod (6) comprises a main body (61), a torque transmission keybar (64) and a pressurizing block (65), and a key slot matched with the torque transmission keybar (64) is arranged in the power (5).
5. The drilling machine capable of realizing gas lift reverse circulation construction according to claim 4, wherein the drilling machine is characterized in that: the drill bit system (12) comprises a guide (121), a counterweight (122) and a drill bit (123), the drill bit system (12) is connected with the reverse circulation drill rod (8) through a transition joint (11), and the guide (121) is used for righting the drill bit system (12).
6. The drilling machine capable of realizing gas lift reverse circulation construction according to claim 1, wherein the drilling machine is characterized in that: the main machine (1) with the gas lift reverse circulation construction device adopts a rotary drilling rig, and the mast is provided with supporting legs (16) for supporting the whole machine.
7. The drilling machine capable of realizing gas lift reverse circulation construction according to any one of claim 5, wherein the drilling machine is characterized in that: the mast is connected with the gooseneck pulley yoke (2), the tee joint (4) is connected with the driving drill rod (6), the driving drill rod (6) is connected with the transition joint (11) and the transition joint (11) is connected with the reverse circulation drill rod (8) through flange plates.
8. The drilling machine capable of realizing gas lift reverse circulation construction according to any one of claims 6, wherein the drilling machine is characterized in that: the three-way valve (4), the driving drill rod (6), the transition drill rod (7), the reverse circulation drill rod (8) and the drill bit system (12) are internally provided with a slurry passing channel (63), and a ring cavity (62) is arranged between the slurry passing channel (63) and the main body.
9. A combined drilling construction method of a drilling machine capable of realizing gas lift reverse circulation construction by adopting the drilling machine disclosed in claim 8, which is characterized in that: the method comprises the following steps:
s1: placing a steel pile casing at the hole of the cast-in-place pile, positioning and meeting the positioning requirement;
s2: the rotary drilling rig is used for drilling a certain depth by adopting rotary drilling, and then drilling and shifting in the first stage are completed;
s3: the orifice device (9) is arranged, so that gas lift reverse circulation rotary digging is realized, then drilling is continued, drilling is carried out to a designed depth, and second-stage drilling is completed;
s4: in the second stage drilling process, mud hole cleaning is realized at the same time, and after drilling to the designed depth is finished, hole cleaning is finished at the same time;
s5: the drilling machine capable of realizing gas lift reverse circulation is shifted, and a crane is adopted to lower the reinforcement cage;
s6: performing secondary hole cleaning
S7: and pouring concrete into the pile through the pouring guide pipe.
10. The combined drilling construction method of the drilling machine capable of realizing gas lift reverse circulation construction according to claim 9, wherein the combined drilling construction method is characterized in that: the drill hole device (9) in the step S3 comprises a base (92), a sliding plate (98), a driving part, a hole turning plate (93), a construction hole and a drill rod placement hole (97), wherein the base is formed by connecting a left longitudinal beam (924), a right longitudinal beam (921), a front longitudinal beam (923) and a rear longitudinal beam (922) through bolts, the bottom of the sliding plate (98) is provided with a sliding rail (91), the sliding plate can slide back and forth on the left longitudinal beam and the right longitudinal beam (924) (921), the sliding plate can slide and open when a drill bit system (12) is placed down, the driving part (94) is used for pushing the sliding plate (98) to slide back and forth on the left longitudinal beam and the right longitudinal beam (924) (921), the hole turning plate (93) is connected with the sliding plate (98) through a pin shaft, circulating drill rods are conveniently used for storing the next circulation through the drill rod placement hole (97), and a detachable pad fork (96) is arranged on the drill rod placement hole and used for fixing the next circulation.
11. The combined drilling construction method of the drilling machine capable of realizing gas lift reverse circulation construction according to claim 10, wherein the combined drilling construction method is characterized in that: the front ends of the orifice turning plate (93) and the cushion fork (96) are respectively provided with an arc structure, the inner diameters of the arc structures are respectively smaller than the inner diameters of the corresponding construction hole (99) and the drill rod placement hole (97), and the arc structures extend into the construction hole (99) or the drill rod placement hole (97) during covering.
12. The combined drilling construction method of the drilling machine capable of realizing gas lift reverse circulation construction according to claim 10, wherein the combined drilling construction method is characterized in that: the drive member is a slipping cylinder (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310525150.3A CN116591593A (en) | 2023-05-10 | 2023-05-10 | Drilling machine capable of realizing gas lift reverse circulation construction and combined drilling construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310525150.3A CN116591593A (en) | 2023-05-10 | 2023-05-10 | Drilling machine capable of realizing gas lift reverse circulation construction and combined drilling construction method |
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| Publication Number | Publication Date |
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| CN116591593A true CN116591593A (en) | 2023-08-15 |
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|---|---|---|---|
| CN202310525150.3A Pending CN116591593A (en) | 2023-05-10 | 2023-05-10 | Drilling machine capable of realizing gas lift reverse circulation construction and combined drilling construction method |
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| Country | Link |
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| CN (1) | CN116591593A (en) |
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2023
- 2023-05-10 CN CN202310525150.3A patent/CN116591593A/en active Pending
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