CN217976071U - Combined type deep jet drilling device - Google Patents

Abstract

The application relates to the drilling field, especially relates to a combined type deep jet drilling device, and its technical scheme main points are: the combined type deep jet drilling comprises a drill rod group with a helical blade and a power head for driving the drill rod group to rotate around the axis of the drill rod group in a fixed shaft mode, wherein a down-the-hole hammer is arranged at the end of the drill rod group, and a high-pressure air inlet pipe which is communicated with an air compressor to drive the down-the-hole hammer to vibrate in an impact mode along the axis direction of the drill rod group is arranged on the drill rod group; the drilling machine achieves the purposes of being suitable for drilling operation of deep wells with different depths and saving the time of construction operation so as to improve the operation efficiency.

Description

Combined type deep jet drilling device

Technical Field

The application relates to the field of drilling, in particular to a combined type deep jet drilling device.

Background

The deep well drilling rig is drilling equipment for pore-forming operation, and a rotary drilling rig is mainly adopted for deep well drilling operation at home and abroad, namely a dial bar is driven by a turntable, and a central square hole of the dial bar is matched with a square drill rod so as to drive the square drill rod to rotate and drill.

According to the deep well drilling operation method recorded in the related technology, by adopting the deep well drilling machine, soil quality of a soil layer in the depth range of 10m underground is relatively uniform and mostly consists of dry soil, wet soil, fine sand or gravel and other components, and drilling operation in a certain depth range can be completed by means of a drill rod of the deep well drilling machine; however, in the soil layer of 60 to 70m or more underground, there are often more hard and bulky rocks, and the drilling operation of drilling deeper wells cannot be satisfied by only the drill rod, so the drill rod needs to be withdrawn from the deep well in a counter-rotating manner, and a down-the-hole hammer and high-pressure gas driving equipment used with the down-the-hole hammer need to be replaced and installed.

In view of the above-mentioned related art solutions, the inventors found that: in the process of replacing or installing the down-the-hole hammer, the drill rod needs to be withdrawn reversely, so that the construction operation time is consumed, and the operation efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to be applicable to the drilling operation of different degree of depth deep wells to save the time of construction operation in order to improve the operating efficiency, this application provides a combined type deep jet drilling device.

The application provides a combined type deep jet drilling device adopts following technical scheme:

a combined deep jet drilling device comprises a drill rod group with helical blades and a power head used for driving the drill rod group to rotate around a self axis fixed shaft, wherein a down-the-hole hammer is arranged at the end of the drill rod group, and a high-pressure air inlet pipe used for being communicated with an air compressor to drive the down-the-hole hammer to vibrate in an impact mode along the axis direction of the drill rod group is arranged on the drill rod group.

By adopting the technical scheme, the high-pressure air inlet pipe is communicated with the air compressor, and the power head and the air compressor are simultaneously started in the drilling operation process of the deep well, so that the drill rod group is started to rotate, and meanwhile, the down-the-hole hammer vibrates up and down to knock the well bottom of the deep well; drilling and excavating are carried out to the deep well by the drill rod group, the down-the-hole hammer carries out crushing treatment to hard and bulky rock at the bottom of the deep well, drilling and excavating and rock crushing are carried out simultaneously, and the down-the-hole hammer is compared with repeatedly replacing and installing the down-the-hole hammer.

Optionally, the drilling rod group is hollow, a slurry separator used for spraying air-coated water and air-coated slurry to the outside of the drilling rod group is arranged on the drilling rod group, and a first air inlet pipe, a second air inlet pipe, a water inlet pipe and a slurry inlet pipe which are communicated with the slurry separator are arranged on the water faucet.

By adopting the technical scheme, the first air inlet pipe and the second air inlet pipe are both communicated with the high-pressure air source, the water inlet pipe is communicated with the high-pressure water pump, the slurry inlet pipe is communicated with the high-pressure slurry pump, high-pressure water and high-pressure air enter the slurry separator together to form air-in-water, impact force is applied to the well wall of the deep well, and the diameter expansion of the deep well is further realized; high-pressure cement slurry and high-pressure gas enter the slurry separator together to form gas-bag slurry, so that impact force is applied to the wall of the deep well to further realize diameter expansion of the deep well, and the cement slurry realizes reinforcement of the wall of the deep well.

Optionally, the slurry separator comprises a slurry separator body and a slurry discharge pipe arranged inside the slurry separator body, a first air ring groove communicated with a first air inlet pipe and a first air hole communicated with the first air ring groove are formed inside the slurry separator body, the first air hole is communicated with the outside of the slurry separator body, and the pipe orifice of the slurry discharge pipe is arranged inside the first air hole.

Through adopting above-mentioned technical scheme, grout is through arranging the thick liquid pipe to dividing thick liquid ware body outside injection, and high-pressure gas is through first gas port to dividing thick liquid ware body outside output, meanwhile, because the mouth of pipe setting of arranging the thick liquid pipe is inside first gas port, and then spun grout and high-pressure gas will strike on the wall of a well of deep well with the form of gas package thick liquid, high-pressure gas carries out rotary cutting to the deep well wall of a well simultaneously with grout, high-pressure gas plays pressure compensation and supplementary cutting's effect to grout.

Optionally, the inside drain pipe that communicates with the inlet tube that still is provided with of thick liquid separator body, the inside second gas pocket that offers with the second intake pipe intercommunication of thick liquid separator body and the second gas pocket that communicates with second gas pocket, second gas pocket and the outside intercommunication of thick liquid separator body, the mouth of pipe setting of drain pipe is inside the second gas pocket.

Through adopting above-mentioned technical scheme, the water under high pressure passes through the drain pipe and sprays to the branch thick liquid ware body outside, and high-pressure gas passes through the second gas pocket to the outside output of branch thick liquid ware body, meanwhile, because the mouth of pipe setting of drain pipe is inside the second gas pocket, and then spun high-pressure water and high-pressure gas will strike on the wall of a well of deep well with the form of gas package water, and high-pressure gas carries out rotary cutting to the deep well wall of a well simultaneously with high-pressure water, and high-pressure gas plays pressure compensation and supplementary cutting's effect to the high-pressure water.

Optionally, an auxiliary helical blade is fixed on the outer circumferential surface of the slurry separator body.

Through adopting above-mentioned technical scheme, when the slurry separator body is rotatory along with the drill rod group, vice helical blade cuts the conveying to the soil of deep well inside, except the helical blade on the drill rod group, vice helical blade plays the effect of supplementary cutting and soil transport equally.

Optionally, the drill string set includes one or more end-to-end drill rods, and the drill rods are detachably and fixedly connected with each other.

By adopting the technical scheme, the number of the drill rods can be adaptively selected according to the depth of the deep well, so that the practicability and compatibility of drilling are improved.

Optionally, the down-the-hole hammer comprises a sliding shaft section connected with the end of the drill rod group, a rotary cutting cylinder is sleeved outside the sliding shaft section, and a secondary helical blade is fixed on the outer wall of the rotary cutting cylinder.

Through adopting above-mentioned technical scheme, when down-the-hole hammer and the shaft section that slides rotated along with the drilling rod group, inferior helical blade cut the conveying to the soil of deep well inside, except helical blade on the drilling rod group and the vice helical blade on the pulp distributor body, inferior helical blade plays the effect of supplementary cutting and soil transport equally.

Optionally, the exhaust holes used for communicating the two ends of the drill rod group along the axial direction are formed in the helical blade, the auxiliary helical blade and the auxiliary helical blade.

Through adopting above-mentioned technical scheme, along with the drilling in the inside deepening of deep well, the lower terminal surface of drilling rod group will compress the air of deep well bottom, and this part air will be extruded and upwards discharge, and the setting in exhaust hole can make the space and the atmosphere intercommunication of drilling rod group lower extreme so that gas can in time discharge, reduces the drilling rod group and produces the possibility that the unstable condition such as vibration or rocking takes place because the overstock gas in rotatory process.

Optionally, a shock absorber is disposed on the drill string.

By adopting the technical scheme, the axial and radial vibration amplitude of the drill rod group generated by the arrangement of the down-the-hole hammer is reduced.

Optionally, the end of the down-the-hole hammer is provided with a plurality of spiral cutting grooves, the edges of the cutting grooves are provided with peripheral blades, the end surface of the down-the-hole hammer is provided with bottom blades, and the bottom blades are formed at the groove ends of the cutting grooves.

Through adopting above-mentioned technical scheme, when the down-the-hole hammer rotated along with the drilling rod group, periphery sword and end sword ground the cutting to soil and rock, upwards carried rubble and soil through cutting flutes and inferior helical blade, further improved the drilling operating efficiency of deep well.

In summary, the present application has the following technical effects:

1. the drilling rod group and the down-the-hole hammer are arranged, the drilling rod group performs drilling excavation on the deep well, the down-the-hole hammer performs crushing treatment on hard and large-volume rocks at the bottom of the deep well, the drilling excavation and the rock crushing are performed simultaneously, and compared with the repeated replacement and installation of the down-the-hole hammer, the drilling rod group and the down-the-hole hammer are applicable to drilling operation of deep wells at different depths, the time of construction operation is saved, and the operation efficiency is improved;

2. by arranging the slurry separator, the gas bag water and the gas bag slurry are sprayed to the outside of the drill rod group, so that on one hand, impact force is applied to the well wall of the deep well, the diameter expansion of the deep well is realized, and on the other hand, the cement slurry is used for reinforcing the well wall of the deep well;

3. the cutting groove, the peripheral edge and the bottom edge are machined on the end face of the down-the-hole hammer, when the down-the-hole hammer rotates along with a drill rod group, the peripheral edge and the bottom edge grind and cut soil and rocks, broken stones and the soil are conveyed upwards through the cutting groove and the secondary helical blades, and the drilling operation efficiency of the deep well is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a composite deep jet drilling apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a down-the-hole hammer in an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a schematic view of the internal structure of the slurry separator in the embodiment of the present application.

In the figure, 1, a drill rod group; 101. a drill stem; 2. a power head; 3. a down-the-hole hammer; 301. a slipping shaft section; 302. rotary cutting the cylinder; 303. cutting a groove; 304. a peripheral edge; 305. a bottom edge; 4. a high-pressure air inlet pipe; 5. a faucet; 6. a pulp separator; 601. a slurry discharge pipe; 602. a first gas ring groove; 603. a first air hole; 604. a drain pipe; 605. a second gas ring groove; 606. a second air hole; 607. a pulp separator body; 7. a first intake pipe; 8. a second intake pipe; 9. a water inlet pipe; 10. a pulp inlet pipe; 11. a helical blade; 12. a secondary helical blade; 13. a secondary helical blade; 14. an exhaust hole; 15. a damper.

Detailed Description

In the description of the present application, it is to be noted that the terms "deep", "high voltage", and the like are relative relationships based on the drawings or common sense, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the process or module referred to must have a specific orientation, state, and operation, and thus, should not be construed as limiting the present invention.

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, the present application provides a composite deep jet drilling apparatus, including a drill rod assembly 1 vertically disposed and a power head 2 for driving the drill rod assembly 1 to rotate around its axis, a helical blade 11 is fixed on the circumferential surface of the drill rod assembly 1, and the power head 2 is coaxially sleeved and fixed on the drill rod assembly 1; the lower end of the drill rod group 1 is provided with a down-the-hole hammer 3, the down-the-hole hammer 3 comprises a sliding shaft section 301 connected with the drill rod group 1 in a sliding mode, and the hammer head of the down-the-hole hammer 3 is arranged at one end, away from the drill rod group 1, of the sliding shaft section 301; the upper end of the drill rod group 1 is fixed with a high-pressure air inlet pipe 4 with a hollow interior, the drill rod group 1 is hollow and is introduced with a pneumatic pipeline for driving the down-the-hole hammer 3 to impact and vibrate along the axis direction of the drill rod group 1, the pneumatic pipeline is communicated with the high-pressure air inlet pipe 4, and the high-pressure air inlet pipe 4 is communicated with an air compressor; in this embodiment, the air compressor is 20-25 kg, and the displacement of the air compressor is 30 cubic.

When carrying out drilling operation to the great deep well of degree of depth, start power supply and the air compressor machine of unit head 2 simultaneously, in order to make drilling rod group 1 around self axis pivoted, down-the-hole hammer 3 along 1 axis direction shock vibration of drilling rod group and then carry out broken handle to deep well bottom stereoplasm and bulky rock, the realization is excavated the probing of deep well wall of a well soil and is gone on simultaneously to the breakage of shaft bottom rock, and need not withdraw from drilling rod group 1 and change installation down-the-hole hammer 3 in the reverse direction when meetting the rock, compare in changing installation down-the-hole hammer 3 repeatedly, this application is applicable to the drilling operation of the different degree of depth deep wells, and the time of having practiced thrift the construction operation has just improved the operating efficiency.

Further, referring to fig. 1, in order to make the drilling of this application be applicable to the deep well drilling operation of different depths, drill rod group 1 includes a plurality of coaxial end to end's drilling rod 101, can dismantle fixed connection between the adjacent drilling rod 101, and this can dismantle fixed connection can be screw thread grafting, flange joint or coupling joint etc. to can realize that gyration power transmission and position between the adjacent drilling rod 101 are fixed as the standard, drilling rod 101 quantity carries out the selection adjustment of adaptability between carrying out the drilling operation according to the depth of required deep well.

Further, referring to fig. 2, in order to further improve the efficiency of the drilling operation, a plurality of spiral cutting grooves 303 are formed in the circumferential surface of the down-the-hole hammer 3, the cutting grooves 303 are formed to penetrate the lower end surface of the down-the-hole hammer 3, outer peripheral edges 304 are formed at the groove edges of the cutting grooves 303, end edges 305 are formed at the end surface of the down-the-hole hammer 3, and in the present embodiment, four cutting grooves 303 are formed, and four outer peripheral edges 304 and four end edges 305 are provided correspondingly; despite the provision of the cutting flutes 303 and the provision of the bottom edges 305 and the peripheral edges 304, the lower end face of the down-the-hole hammer 3 is still in a plane perpendicular to the axial direction of the down-the-hole hammer 3 in order to ensure a good impact effect of the down-the-hole hammer 3.

In the process that the down-the-hole hammer 3 rotates along with the drill rod group 1, the outer peripheral edge 304 and the bottom edge 305 simultaneously rotate around the axis of the down-the-hole hammer 3 in a fixed shaft mode, further, soil at the bottom of a deep well and rocks which are crushed by the down-the-hole hammer 3 are ground and cut, and the crushed rocks and soil are conveyed towards the drill rod group 1 under the spiral guiding effect of the cutting grooves 303; in addition, a rotary cutting cylinder 302 is sleeved outside the sliding shaft section 301, the rotary cutting cylinder 302 is fixedly connected with the lower end of the drill rod group 1 or the upper end face of the down-the-hole hammer 3, the rotary cutting cylinder 302 can further rotate along with the rotation of the drill rod group 1, a secondary helical blade 13 which extends spirally around the axis of the rotary cutting cylinder 302 is fixed on the outer wall of the rotary cutting cylinder 302, the helical blade 11 and the down-the-hole hammer 3 cut and crush the wall and the bottom of the well, and the secondary helical blade 13 cuts and conveys soil in the deep well, except for the helical blade 11 on the drill rod group 1, the secondary helical blade 13 plays a role in assisting cutting and soil conveying.

In addition, referring to fig. 1 and 3, in order to further improve the deep well drilling operation efficiency and facilitate the expansion of the diameter of the deep well, a slurry separator 6 for spraying air-coated slurry or air-coated water to the periphery of the drill rod group 1 is fixed between the drill rod group 1 and the down-the-hole hammer 3, a hollow faucet 5 is arranged above the power head 2, a first air inlet pipe 7, a second air inlet pipe 8, a water inlet pipe 9 and a slurry inlet pipe 10 which are communicated with the slurry separator 6 are arranged on the faucet 5, and the first air inlet pipe 7, the second air inlet pipe 8, the water inlet pipe 9 and the slurry inlet pipe 10 all penetrate through the outer wall of the faucet 5 and extend into the faucet 5 and simultaneously extend downwards onto the slurry separator 6; in the embodiment, the first air inlet pipe 7 and the second air inlet pipe 8 are both communicated with a high-pressure air source with 8-25 kilograms of force, the water inlet pipe 9 is communicated with a high-pressure water pump and a high-pressure water source with 40 kilograms of force, and the slurry inlet pipe 10 is communicated with a high-pressure slurry pump and a high-pressure slurry source with 35 kilograms of force.

Referring to fig. 4, for the air-bag water generated by the slurry separator 6, the slurry separator 6 includes a slurry separator body 607, a water discharge pipe 604 communicated with the water inlet pipe 9 is fixed inside the slurry separator body 607, the water discharge pipe 604 extends along the radial direction of the slurry separator body 607, two ends of the water discharge pipe 604 penetrate through the peripheral wall of the slurry separator body 607, and the water discharge pipe 604 is communicated with the outside of the slurry separator body 607; a second gas ring groove 605 communicated with the second gas inlet pipe 8 is formed in the slurry separator body 607, and the second gas ring groove 605 is formed around the axis of the slurry separator body 607; the inside of the slurry separator body 607 is further provided with two second air holes 606 communicated with the second air ring groove 605, the second air holes 606 penetrate through the peripheral wall of the slurry separator body 607 to be formed, the water discharge pipe 604 is fixedly inserted into the second air holes 606, the pipe orifice of the water discharge pipe 604 and the hole orifice of the second air holes 606 are coaxially formed, and the diameter of the second air holes 606 is larger than that of the water discharge pipe 604.

The water under high pressure passes through drain pipe 604 and sprays to the branch thick liquid ware body 607 outside, high-pressure gas passes through second gas pocket 606 and exports to branch thick liquid ware body 607 outside, because the mouth of pipe setting of drain pipe 604 is inside second gas pocket 606 and the diameter of second gas pocket 606 is greater than the mouth of pipe of drain pipe 604, and then the high-pressure gas of output is cyclic annular and high-pressure gas is enclosed inside cyclic annular high-pressure gas flow, sprayed high-pressure water and high-pressure gas will be hit on the wall of a well with the form of gas package water promptly, high-pressure gas carries out rotary cutting to the wall of a well with high-pressure water simultaneously, high-pressure gas plays pressure compensation and supplementary cutting's effect to high-pressure water, the wall of a well effect impact force and then realize the diameter expansion of deep well.

Referring to fig. 4, for the slurry separator 6 to generate air-wrapped slurry, a slurry discharge pipe 601 communicated with the slurry inlet pipe 10 is further arranged inside the slurry separator body 607, the slurry discharge pipe 601 is positioned below the second air ring groove 605, the slurry discharge pipe 601 extends along the radial direction of the slurry separator body 607, two ends of the slurry discharge pipe 601 penetrate through the peripheral wall of the slurry separator body 607, and the slurry discharge pipe 601 is communicated with the outside of the slurry separator body 607; two first gas ring grooves 602 communicated with the first gas inlet pipe 7 are formed in the slurry separator body 607, and the first gas ring grooves 602 are formed around the axis of the slurry separator body 607; a first air hole 603 communicated with the first air ring groove 602 is further formed in the slurry distributor body 607, the first air hole 603 penetrates through the circumferential wall of the slurry distributor body 607 to be formed, the slurry discharge pipe 601 is fixedly inserted into the first air hole 603, a pipe orifice of the slurry discharge pipe 601 and a hole orifice of the first air hole 603 are coaxially formed, and the diameter of the first air hole 603 is larger than that of the slurry discharge pipe 601; the first gas ring groove 602 and the second gas ring groove 605 may be communicated with each other, or a plurality of chambers separated from each other may be provided inside the slurry separator body 607 as the first gas ring groove 602 and the second gas ring groove 605, and for the latter, it is necessary to make the first gas pipe and the slurry inlet pipe 10 penetrate through the solid portion of the slurry separator body 607 between the first gas ring groove 602 and the second gas ring groove 605, and to achieve good sealing at the penetrating position.

High-pressure mud is sprayed to the outside of the slurry separator body 607 through the slurry discharge pipe 601, high-pressure gas is output to the outside of the slurry separator body 607 through the first air hole 603, because the pipe orifice of the slurry discharge pipe 601 is arranged in the first air hole 603 and the diameter of the first air hole 603 is larger than that of the slurry discharge pipe 601, and then the output high-pressure gas is annular and is surrounded in the annular high-pressure gas flow, namely the sprayed high-pressure mud and the high-pressure gas strike on the well wall of the deep well in the form of gas-encapsulated mud, on one hand, the high-pressure gas and the high-pressure mud simultaneously carry out rotary cutting on the well wall of the deep well, the high-pressure gas plays the roles of pressure compensation and auxiliary cutting on the high-pressure mud, the impact force is acted on the well wall of the deep well so as to realize the diameter expansion of the deep well, and on the other hand, the cement slurry realizes the reinforcement on the well wall of the deep well.

For the selection of air pocket water and air pocket thick liquid in the thick liquid separator 6, can select one between the two to use, also can the two start simultaneously, and specific service behavior can be decided according to operating condition.

Similarly, referring to fig. 3, an auxiliary helical blade 12 is fixed on the outer peripheral surface of the slurry separator body 607, and the auxiliary helical blade 12 is spirally coiled around the axis of the slurry separator body 607, so that the helical blade 11, the auxiliary helical blade 12 and the secondary helical blade 13 rotatably cut the well wall at different depths of the deep well and discharge and convey soil and gravels upwards.

Referring to fig. 3, as drilling is carried out deep in a deep well, the lower end surface of the drill rod group 1 compresses air at the bottom of the deep well, if the air cannot be extruded and discharged upwards in time, the drill rod group 1 is prone to vibrating or sliding, therefore, exhaust holes 14 for communicating the two ends of the drill rod group 1 along the axial direction are formed in the helical blade 11, the auxiliary helical blade 12 and the auxiliary helical blade 13, the exhaust holes 14 can be coaxially formed and distributed along the axial direction of the drill rod group 1, and the space at the lower end of the drill rod group 1 is communicated with the atmosphere so that the air can be discharged in time; in addition, and with reference to fig. 1, a damper 15 is fixed between the power head 2 and the high pressure inlet pipe 4 to reduce the amplitude of axial and radial vibrations of the drill string 1 due to the arrangement of the down-the-hole hammer 3 and the presence of the compressed air.

To sum up, the application process is as follows: the spiral blade 11 arranged on the drill rod group 1, the auxiliary spiral blade 12 arranged on the slurry separator body 607 and the secondary spiral blade 13 arranged on the down-the-hole hammer 3 simultaneously carry out rotary cutting on the well wall of the deep well, meanwhile, the down-the-hole hammer 3 carries out knocking and crushing on rocks at the bottom of the deep well, and in the process, the outer peripheral edge 304 and the bottom edge 305 on the down-the-hole hammer 3 simultaneously carry out grinding and cutting on soil and rocks at the end part of the deep well, so that the drilling operation efficiency of the deep well is greatly improved; the setting of slurry separator 6 sprays gas bag thick liquid or gas bag water to the wall of a well of deep well promptly, and the cooperation blade carries out rotary cutting to the wall of a well of deep well, and the wall of a well is acted on the impact force and then is realized the diameter expansion of deep well to the deep well, and grout realizes the enhancement to the wall of a well in addition and consolidates.

The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.

Claims (10)

1. A combined type deep jet drilling device is characterized in that: the drilling rod group comprises a drilling rod group (1) with helical blades (11) and a power head (2) used for driving the drilling rod group (1) to rotate around a self axis fixed shaft, a down-the-hole hammer (3) is arranged at the end of the drilling rod group (1), and a high-pressure air inlet pipe (4) used for communicating an air compressor to drive the down-the-hole hammer (3) to vibrate along the axis direction of the drilling rod group (1) in an impact mode is arranged on the drilling rod group (1).

2. The composite deep jet drilling apparatus as set forth in claim 1, wherein: still include tap (5), the drilling rod group (1) is inside hollow and be provided with on drilling rod group (1) and be used for to drilling rod group (1) outside injection gas bag water and gas bag thick liquid divide thick liquid ware (6), be provided with on tap (5) with divide thick liquid ware (6) the intercommunication first intake pipe (7), second intake pipe (8), inlet tube (9) and advance thick liquid pipe (10).

3. The composite deep jet drilling apparatus as set forth in claim 2, wherein: divide thick liquid ware (6) including dividing thick liquid ware body (607) and setting at the inside row thick liquid pipe (601) of dividing thick liquid ware body (607), divide thick liquid ware body (607) inside offer with first gas pocket (602) of first intake pipe (7) intercommunication and with first gas pocket (603) of first gas pocket (602) intercommunication, first gas pocket (603) and divide thick liquid ware body (607) outside intercommunication, the mouth of pipe of arranging thick liquid pipe (601) sets up inside first gas pocket (603).

4. The composite deep jet drilling apparatus as set forth in claim 2, wherein: the inside drain pipe (604) that still is provided with and advances water pipe (9) intercommunication of thick liquid ware body (607), divide thick liquid ware body (607) inside offer with second intake pipe (8) intercommunication second gas ring groove (605) and with second gas pocket (606) of second gas ring groove (605) intercommunication, second gas pocket (606) and the outside intercommunication of thick liquid ware body (607), the mouth of pipe setting of drain pipe (604) is inside second gas pocket (606).

5. A composite deep jet drilling apparatus according to any one of claims 2 to 4, wherein: an auxiliary helical blade (12) is fixed on the outer peripheral surface of the slurry separator body (607).

6. The composite deep jet drilling apparatus as set forth in claim 1, wherein: the drill rod group (1) comprises one or more drill rods (101) which are connected end to end, and the plurality of drill rods (101) are detachably and fixedly connected.

7. The composite deep jet drilling apparatus as set forth in claim 5, wherein: the down-the-hole hammer (3) comprises a sliding shaft section (301) connected with the end part of the drill rod group (1), a rotary cutting cylinder (302) is sleeved outside the sliding shaft section (301), and a secondary helical blade (13) is fixed on the outer wall of the rotary cutting cylinder (302).

8. The composite deep jet drilling apparatus as set forth in claim 7, wherein: exhaust holes (14) used for communicating the two ends of the drill rod group (1) along the axial direction are formed in the helical blade (11), the auxiliary helical blade (12) and the secondary helical blade (13).

9. The composite deep jet drilling apparatus as set forth in claim 1, wherein: the drill rod group (1) is provided with a shock absorber (15).

10. The composite deep jet drilling apparatus as set forth in claim 1, wherein: the end part of the down-the-hole hammer (3) is provided with a plurality of spiral cutting grooves (303), the groove edges of the cutting grooves (303) are provided with peripheral blades (304), the end surface of the down-the-hole hammer (3) is provided with bottom blades (305), and the bottom blades (305) are formed at the groove ends of the cutting grooves (303).

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