CN212985095U

CN212985095U - Low-temperature deep-cooling rapid drilling device

Info

Publication number: CN212985095U
Application number: CN201921926342.0U
Authority: CN
Inventors: 肖英佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-03
Filing date: 2019-11-03
Publication date: 2021-04-16
Anticipated expiration: 2029-11-03

Abstract

A low-temperature deep cooling rapid drilling device. A derrick 1, a power 2, a rotary table 3, a traveling block 4, a crown block 5, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, an autonomous seal 8, a rotary table-driven liquid nitrogen rotary conveyor or a motor-driven liquid nitrogen rotary conveyor 9, a liquid nitrogen delivery drill pipe 10, a low-temperature cryogenic drill bit 11, a liquid nitrogen pump 12, an air compressor 13 and a hydraulic flusher 14 are mechanically, pipeline-connected, electrically-connected and thermally-connected to form the rotary-drill low-temperature cryogenic rapid drilling device. The method is suitable for drilling hard rock masses of magma rocks, sedimentary rocks and metamorphic rocks, and is applied to geothermal resource development engineering, petroleum and natural gas resource development engineering, coal mine resource development engineering, underground water salt well resource development engineering and geological mineral deposit exploration engineering. The method is suitable for reducing the cost of oil per ton, reducing the drilling time, saving manpower and material resources and realizing the maximization of benefits in the drilling engineering of low-quality resource deep ultra-deep wells.

Description

Low-temperature deep-cooling rapid drilling device

Technical Field

The utility model relates to a downhole drilling engineering tool.

Background

The invention relates to a process method for building a road by burning mountain pine and pouring river stone to break rock according to the observation, cognition and learning of nature in the era without modern tools by human citizens. In 1521, the first oil well was drilled in Jia, Sichuan in China. In 1840, a 1200-meter deep well is drilled in a Sichuan artesian well region. The first 1000 m deep sea well was drilled in 1835 years. Today, experts, engineers, and scientists have invented and created a wide variety of subterranean drilling methods and modern drilling tools. They are classified into mechanical drilling, physical drilling and chemical drilling. The mechanical drilling method includes a rotary drilling method, a churn drilling method and an impact rotary drilling method. Physical drilling methods include vacuum fragmentation drilling, Laser Enhanced Drilling (LED), hydrothermal fragmentation drilling (HSD), Electron Pulse Drilling (EPD) and hot lava drilling, blast drilling and microwave electron beam drilling, and chemical drilling methods include strong acid chemical dissolution drilling. Among them, mechanical drilling and hydrothermal fragmentation are widely used in practical applications. The problems of the mechanical drilling method are that the drilling completion time is long, the energy consumption is high, and the drilling cost is high. The hydrothermal fragmentation drilling method has the advantages of short drilling completion time, much consumed energy, multiplied drilling cost and no method capable of dividing the drilling cost, so that the problems to be solved are to develop a drilling method and a drilling tool (device) which have the advantages of short drilling completion time, low drilling cost, safety, reliability and practical application.

Disclosure of Invention

The utility model discloses low temperature cryrogenic quick drilling device, combine figure 1, by derrick 1, power 2, carousel 3, traveling block 4, overhead traveling crane 5, liquid nitrogen tank wagon 6, liquid nitrogen conveyer pipe 7, independently sealed 8, rotary table drive liquid nitrogen rotary conveyor or motor drive liquid nitrogen rotary conveyor 9, liquid nitrogen conveying drilling rod 10, low temperature cryrogenic drill bit 11, liquid nitrogen pump 12, air compressor machine 13, water flushing device 14 respectively through mechanical connection, the pipe connection, the electric power connection, the heat-bonding constitutes the rotary drill low temperature cryrogenic quick drilling device. With reference to the attached figure 2, the drilling device for the low-temperature deep-cooling rapid drilling is formed by respectively mechanically connecting, connecting pipelines, electrically connecting and thermally connecting a derrick 1, a power 2, a crown block 5, a walking beam 15, a hydraulic flusher 14, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, a liquid nitrogen controller 16, a drilling bit 17, a liquid nitrogen pump 12 and an air compressor 13. Referring to fig. 3, a liquid nitrogen delivery elbow 18, a liquid nitrogen delivery shaft 19, a compensation bellows 20, an end face seal 21, a radial seal 22, an axial bearing 23, a radial bearing 24, a slideway 25 and a lifting ring 26 are respectively connected into a whole through a shell 27 to form the turntable-driven liquid nitrogen rotary conveyor 9. Referring to fig. 4, a liquid nitrogen delivery elbow 18, a liquid nitrogen delivery shaft 19, a compensation bellows 20, an end face seal 21, a radial seal 22, an axial bearing 23, a radial bearing 24, a slideway 25, a lifting ring 26, a large gear 28, a small gear 29 and a motor 30 are respectively connected into a whole through a casing 31 to form a motor-driven liquid nitrogen rotary conveyor 9. Referring to fig. 5, the liquid nitrogen conveying drill pipe 10 is formed by integrally connecting an external thread joint 33, an internal thread joint 34, an inner pipe 35, a supporting body 36, an air suction head 37, a balancing body 38 and a corrugated pipe 39 through an outer pipe 32. Referring to fig. 6 and 7, the liquid nitrogen delivery pipe 7 is formed by respectively integrally connecting a front joint 40, a rear joint 41, an outer corrugated pipe 42, an inner corrugated pipe 43 and a clamp 44 through the outer corrugated pipe 42, the inner corrugated pipe 43, the front joint 40 and the rear joint 41. With reference to fig. 8 and fig. 9, the low-temperature cryogenic drill 11 is formed by respectively connecting a drill body 45, a liquid nitrogen control body 46, a clamping groove 47, a liquid nitrogen nozzle 48, a cutting edge 49, a gauge 50 and a slag discharge groove 51 through the drill body 45. Referring to fig. 10, the seal body 52 and the self-sealing body 8 are integrally connected by a snap plate 53. Referring to fig. 11, the liquid nitrogen controller 16 is formed by connecting an outer casing 54, an upper connector 55, a lower nozzle 56, and an electric switch 57 through the outer casing 54. Referring to fig. 12, the hydraulic flusher 14 is formed by connecting a shell 58, an upper water inlet pipe 59 and a lower water outlet pipe 60 into a whole through the shell 58.

Low temperature cryrogenic quick drilling equipment, by derrick 1, power 2, carousel 3, traveling block 4, overhead traveling crane 5, liquid nitrogen tank wagon 6, liquid nitrogen conveyer pipe 7, independently sealed 8, carousel drive liquid nitrogen rotary conveyor or motor drive liquid nitrogen rotary conveyor 9, liquid nitrogen conveying drilling rod 10, low temperature cryrogenic drill bit 11, liquid nitrogen pump 12, air compressor machine 13, water conservancy flusher 14 respectively through mechanical connection, pipe connection, electric power connection, heat links and constitutes rotary drill low temperature cryrogenic quick drilling equipment, characterized by: a liquid nitrogen outlet of a liquid nitrogen tank car 6 is connected with a liquid nitrogen inlet of a liquid nitrogen pump 12 through an autonomous seal 8, a liquid nitrogen outlet of the liquid nitrogen pump 12 is connected with an inlet of one end of a liquid nitrogen conveying pipe 7 through an autonomous seal 8, an outlet of the other end of the liquid nitrogen conveying pipe 7 is connected with an inlet of a liquid nitrogen conveying bent pipe 18 in a rotary table driving liquid nitrogen rotary conveyor or a motor driving liquid nitrogen rotary conveyor 9 through an autonomous seal 8, an outlet of a liquid nitrogen conveying shaft 19 in the rotary table driving liquid nitrogen rotary conveyor or the motor driving liquid nitrogen rotary conveyor 9 is connected with an internal thread joint 34 in a liquid nitrogen conveying drill rod 10 through an autonomous seal 8, the liquid nitrogen conveying drill rod 10 is sequentially connected with one.

Low temperature cryrogenic quick drilling equipment is by derrick 1, power 2, overhead traveling crane 5, walking beam 15, water conservancy flusher 14, liquid nitrogen tank wagon 6, liquid nitrogen conveyer pipe 7, liquid nitrogen controller 16, the drill bit 17 of boring, liquid nitrogen pump 12, air compressor machine 13, respectively through mechanical connection, pipe connection, electric power connection, thermal connection constitute the boring low temperature cool quick drilling equipment deeply, characterized by: the liquid nitrogen outlet of the liquid nitrogen tank car 6 is connected with the liquid nitrogen inlet of the liquid nitrogen pump 12 through the self-sealing 8, the liquid nitrogen outlet of the liquid nitrogen pump 12 is connected with the inlet of one end of the liquid nitrogen conveying pipe 7 through the self-sealing 8, the liquid nitrogen conveying pipe 7 is sequentially connected with the head and the tail through the self-sealing 8, and the terminal is connected with the upper joint 55 in the liquid nitrogen controller 16 into a whole through the self-sealing 8.

Low temperature cryrogenic quick drilling equipment, carousel drive liquid nitrogen carousel 9 is carried return bend 18, liquid nitrogen and is carried axle 19, compensation bellows 20, end face seal 21, radial seal 22, axial bearing 23, radial bearing 24, slide 25, bail 26 by the liquid nitrogen and pass through shell 27 and link an organic whole respectively, characterized by: the liquid nitrogen delivery elbow 18 is a bent double-layer two-end-sealed center through pipeline, the interlayer is vacuumized highly, the liquid nitrogen delivery shaft 19 is a center through solid cylinder, one end plane is provided with an external thread joint, the center inner surface is provided with a heat insulation layer, the compensation corrugated pipe 20 is a double-layer corrugated pipe with two end surface seals, the interlayer is vacuumized highly, the end surface seal 21 is a center through annular insulator, the radial seal 22 is a center through annular insulator, the axial bearing 23 is a one-way thrust roller bearing, the radial bearing 24 is a ball bearing, the slideway 25 is a plate-type track slideway, the lifting ring 26 is a triangular lifting ring, the shell 27 is a hollow cylinder, one end of the liquid nitrogen delivery elbow 18 is connected with one end of the compensation corrugated pipe 20 through the shell 27, the other end surface of the compensation corrugated pipe 20 is connected with one end of the end surface seal 21, the other end surface of, the liquid nitrogen conveying shaft 19 is connected with the shell 27 through an axial bearing 23 and a radial bearing 24 respectively, the end face seal 21 is installed in the middle of the inside of the shell 27 and is in sliding contact with one end face of the liquid nitrogen conveying shaft 19, the radial seal 22 is fixed in the middle of the shell 27 and is in sliding connection with the liquid nitrogen conveying shaft 19, and the slide way 25 and the lifting ring 26 are installed at the upper end of the shell 27.

A low-temperature deep-cooling rapid drilling device is characterized in that a motor drives a liquid nitrogen rotary conveyor 9, and a liquid nitrogen conveying elbow 18, a liquid nitrogen conveying shaft 19, a compensation corrugated pipe 20, an end face seal 21, a radial seal 22, an axial bearing 23, a radial bearing 24, a slideway 25, a lifting ring 26, a large gear 28, a small gear 29 and a motor 30 are respectively connected into a whole through a shell 31; the liquid nitrogen delivery elbow 18 is a bent double-layer double-end sealed center through pipeline, the interlayer is vacuumized, a liquid nitrogen delivery shaft 19 is a center through solid cylinder, one end plane is provided with an external thread joint, the center inner surface is provided with a heat insulation layer, a compensation corrugated pipe 20 is used for sealing the center through double-layer corrugated pipe of two end surfaces, the interlayer is vacuumized, an end surface seal 21 is a center through annular insulator, a radial seal 22 is a center through annular insulator, an axial bearing 23 is a one-way thrust roller bearing, a radial bearing 24 is a ball bearing, a slideway 25 is a plate type track slideway, a lifting ring 26 is a triangular lifting ring, a casing 31 is connected with the lower part of the hollow cylinder and is connected with a gear box, one end of the liquid nitrogen delivery elbow 18 is connected with one end of the compensation corrugated pipe 20 through the casing 31, the other end surface of the, the other end face of the end face seal 21 is in sliding contact with one end face of the liquid nitrogen conveying shaft 19, the liquid nitrogen conveying shaft 19 is connected with the shell 31 through an axial bearing 23 and a radial bearing 24 respectively, the lifting ring 26 is installed at the upper end of the shell 31, the end face seal 21 is installed in the middle of the shell 31 and is in sliding contact with one end face of the liquid nitrogen conveying shaft 19, the radial seal 22 is fixed in the middle of the inside of the shell 31 and is in sliding connection with the liquid nitrogen conveying shaft 19, and the slide way 25 is installed at the.

Low temperature cryrogenic rapid drilling device, liquid nitrogen conveyer pipe 7 is by front connection 40, back connection 41, outer bellows 42, interior bellows 43, fixture 44 through outer bellows 42, interior bellows 43, front connection 40, back connection 41 respectively link an organic whole, characterized by: the outer corrugated pipe 42 and the inner corrugated pipe 43 are respectively connected with the front connector 40 and the rear connector 41, the interlayer between the outer corrugated pipe 42 and the inner corrugated pipe 43 is filled with pearly-lustre sand to be vacuumized, the end face of the front connector 40 is provided with an arc concave face, the outer sleeve clamp 44 is sleeved, the clamp 44 is a circular ring, the two sides of the clamp 44 are provided with bent hook bodies, and the end face of the rear connector 41 is provided with an arc concave face.

Low temperature cryrogenic rapid drilling device, low temperature cryrogenic drill bit 11 is by bit body 45, liquid nitrogen control body 46, draw-in groove 47, liquid nitrogen nozzle 48, cutting edge 49, guarantor's footpath 50, row's cinder notch 51 and is linked together respectively through bit body 45, characterized by: the drill bit body 45 is a solid cylinder, one end of the drill bit body is provided with an external thread joint, the other end of the drill bit body is connected with a rectangular cutting edge 49, symmetrical oval liquid nitrogen nozzles 48 are arranged on two sides of the cutting edge 49, gauge protection 50 and slag discharge grooves 51 are equidistantly distributed on the circumference of the drill bit body 45 in a staggered mode, a symmetrical double-hole cylindrical liquid nitrogen control body 46 is arranged in the drill bit body 45, a Y-shaped hole channel is formed in the drill bit body 45 and communicated with the external thread joint, and the liquid nitrogen control body 46.

Low temperature cryrogenic quick drilling equipment, independently sealed 8 is linked as an organic whole, characterized by through cardboard 53 by seal 52: the sealing body 52 is circular and has a U-shaped cross section, and the center of the sealing body is connected with the annular tooth groove clamping plates 53 at two sides of the circular in a movable state.

Low temperature cryrogenic high-speed drilling device, liquid nitrogen controller 16 is by shell body 54, and upper connector 55, lower nozzle 56, electric switch 57 are connected as an organic whole respectively through shell body 54, characterized by: the shell body 54 is a double-layer center through two ends with a circular ring-shaped plane joint, one end plane is connected with the lower nozzle 56, a double-layer interlayer is filled with pearly-lustre sand heat insulation materials, one side is connected with the electric switch 57, a control rod of the electric switch 57 transversely extends into the middle of the shell body 54, symmetrical double-hole centers are arranged on two sides of a U-shaped cross section to form liquid nitrogen circulation control, and one end plane is connected with the cylindrical center through lower nozzle 56 through the shell body 54.

Low temperature cryrogenic quick drilling equipment, water conservancy flusher 14 is passed through casing 58 by casing 58, upper inlet tube 59, lower outlet pipe 60 and is linked together respectively an organic whole, characterized by: the shell 58 is a cylinder with a sealed periphery and symmetrical round holes in the upper and lower centers, and has an upper water inlet pipe 59 on one side and a lower water outlet pipe 60 on the other side.

Low temperature cryrogenic quick drilling equipment, liquid nitrogen conveying drilling rod 10 is by external thread joint 33, internal thread joint 34, inner tube 35, supporter 36, exhaust head 37, balancing body 38, bellows 39 respectively through outer tube 32 and links an organic whole, characterized by: the outer tube 32 is a cylinder with a center through, two ends of the outer tube are respectively connected with the external thread joint 33 and the internal thread joint 34, the inner tube 35 is a cylinder with a center through, one end of the inner tube is connected with the corrugated tube 39 and the external thread joint 33, the other end of the inner tube is connected with the internal thread joint 34, the middle of the inner tube is connected with the outer tube 32 into a whole through the supporting body 36, the interlayer between the inner tube 35 and the outer tube 32 is vacuumized, and the air pumping head 37 and the balancing body 38 are symmetrically installed and.

According to the device, when the drill bit drills, the chisel edge of the drill bit cuts, crumples, crushes, cuts and grinds the surface of the rock at the hole bottom under the action of axial pressure and horizontal rotary force or impact force; simultaneously injecting low-temperature cryogenic fluid-liquid nitrogen N₂The liquid nitrogen with the boiling point of-196.8 ℃ is widely applied to the fields of biological cells, cryotherapy, low-temperature material crushing, geological exploration, chemical engineering and vacuum space, and the cold quantity of liquid nitrogen per liter is 200 kilocalories. The cold energy is delivered to the high-temperature rock mass at the deep part of the hole bottom and is continuously and discontinuously sprayed to the surface layer of the rock, so that the temperature of the surface of the rock is greatly increased and reduced, and the temperature difference of about 374 ℃ is formed by alternating cold and heat; because the rock mass is composed of various crystalloid and amorphous anisotropic minerals, a fracture system exists in the rock, and the rock mass is a special and complex geologic body with fracture and continuous uniform elastic brittleness. When the momentum flux of the external force of the rotary impact load of the drill bit is changed with liquid nitrogen to generate sudden explosive boiling to absorb the heat of the rock, the surface layer volume of the rock is induced to shrink and deform to generate micro-cracks, the fracture end-opening expansion is started to form a network, and finally the hard rock is induced to be rapidly crushed.

Advantageous effects

The utility model discloses low temperature cryrogenic quick drilling device is suitable for the probing of magma rock, sedimentary rock and the hard rock mass of metamorphic rock, is not suitable for the drilling of the loose rock mass of argillaceous rock, sandstone, carbonatite plasticity.

The utility model discloses low temperature cryrogenic quick drilling equipment uses in geothermal resources development engineering, oil and gas resources development engineering, coal mine resources development engineering, groundwater salt well resources development engineering, the exploration and the development of geological deposit, various geotechnical engineering's construction, be not suitable for major diameter horizontal drilling tunnel engineering. The method is suitable for reducing the cost of oil per ton, reducing the drilling time, saving manpower and material resources and realizing the maximization of benefits in the drilling engineering of low-quality resource deep ultra-deep wells.

The utility model discloses low temperature cryrogenic quick drilling device is suitable for rotatory drilling technology, the drilling technology of boring, strikes rotatory drilling technology. The low-temperature cryogenic fluid-liquid nitrogen used in the low-temperature cryogenic rapid drilling device shares part of the drilling cost with the byproduct provided by the air separation oxygen production industry. The utility model discloses low temperature cryrogenic quick drilling equipment, low temperature cryrogenic well drilling technique compares electron pulse well drilling technique, decompression fragmentation well drilling technique, laser reinforcing well drilling technique, high pressure injection hydrothermal fragmentation well drilling technique, microwave plasma well drilling technique, rock melting blasting well drilling technique and chemical dissolution well drilling technique namely high temperature heating well drilling technique promptly; the low-temperature deep-cooling drilling technology is superior to the high-temperature heating drilling technology in the aspects of reducing energy consumption, shortening drilling time, reducing manpower and material resources, reducing drilling cost, being environment-friendly and integrating social benefits.

Drawings

FIG. 1 is the low-temperature deep-cooling fast drilling device of the utility model, which is a schematic diagram of a low-temperature deep-cooling fast drilling device of a rotary drill.

Fig. 2 is the low-temperature deep-cooling fast drilling device of the utility model, a principle diagram of a low-temperature deep-cooling fast drilling device.

Fig. 3 is a schematic diagram of the low-temperature deep-cooling rapid drilling device of the utility model, and a turntable drives a liquid nitrogen rotary conveyor 9.

Fig. 4 is the low-temperature deep-cooling fast drilling device of the utility model, and a motor drives a liquid nitrogen rotary conveyor 9.

Fig. 5 is the structure diagram of the low-temperature deep cooling quick drilling device of the utility model, a liquid nitrogen conveying drill rod 10.

Fig. 6 is the structure of the low-temperature deep cooling quick drilling device of the utility model, a liquid nitrogen delivery pipe 7.

Fig. 7 is a plan view of the structure of the liquid nitrogen delivery pipe 7 in the direction of B in the low temperature deep cooling fast drilling device of the present invention.

Fig. 8 is the structure diagram of the low-temperature deep cooling quick drilling device of the utility model, a low-temperature deep cooling drill bit 11.

FIG. 9 is a plan view of the structure of the low temperature deep cooling drill bit 11 of the low temperature deep cooling fast drilling device of the present invention.

Fig. 10 is the utility model discloses low temperature cryrogenic rapid drilling device, independently seals 8 structure drawings.

Fig. 11 is the structure diagram of the low-temperature deep cooling fast drilling device and the liquid nitrogen controller 16 of the utility model.

Fig. 12 is the structure diagram of the low-temperature deep-cooling quick drilling device and the hydraulic flusher 14 of the utility model.

Detailed Description

Low-temperature deep cooling rapid drilling device: a derrick 1, a power 2, a rotary table 3, a traveling block 4, a crown block 5, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, an autonomous seal 8, a rotary table-driven liquid nitrogen rotary conveyor or a motor-driven liquid nitrogen rotary conveyor 9, a liquid nitrogen delivery drill pipe 10, a low-temperature cryogenic drill bit 11, a liquid nitrogen pump 12, an air compressor 13 and a hydraulic flusher 14 are mechanically, pipeline-connected, electrically-connected and thermally-connected to form the rotary-drill low-temperature cryogenic rapid drilling device. A liquid nitrogen outlet of a liquid nitrogen tank car 6 is connected with a liquid nitrogen inlet of a liquid nitrogen pump 12 through an autonomous seal 8, a liquid nitrogen outlet of the liquid nitrogen pump 12 is connected with an inlet of one end of a liquid nitrogen conveying pipe 7 through an autonomous seal 8, an outlet of the other end of the liquid nitrogen conveying pipe 7 is connected with an inlet of a liquid nitrogen conveying bent pipe 18 in a rotary table driving liquid nitrogen rotary conveyor or a motor driving liquid nitrogen rotary conveyor 9 through an autonomous seal 8, an outlet of a liquid nitrogen conveying shaft 19 in the rotary table driving liquid nitrogen rotary conveyor or the motor driving liquid nitrogen rotary conveyor 9 is connected with an internal thread joint 34 in a liquid nitrogen conveying drill rod 10 through an autonomous seal 8, the liquid nitrogen conveying drill rod 10 is sequentially connected with one.

A derrick 1, a power 2, a crown block 5, a walking beam 15, a hydraulic flusher 14, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, a liquid nitrogen controller 16, a bit 17, a liquid nitrogen pump 12 and an air compressor 13 are respectively connected mechanically, in a pipeline connection mode, in an electric power connection mode and in a heat connection mode to form the low-temperature deep-cooling rapid drilling device with a bit. The liquid nitrogen outlet of the liquid nitrogen tank car 6 is connected with the liquid nitrogen inlet of the liquid nitrogen pump 12 through the self-sealing 8, the liquid nitrogen outlet of the liquid nitrogen pump 12 is connected with the inlet of one end of the liquid nitrogen conveying pipe 7 through the self-sealing 8, the liquid nitrogen conveying pipe 7 is sequentially connected with the head and the tail through the self-sealing 8, and the terminal is connected with the upper joint 55 in the liquid nitrogen controller 16 into a whole through the self-sealing 8.

All equipment, instruments and parts which are in contact with liquid nitrogen need to be manufactured by adopting low-temperature cryogenic raw materials: austenitic stainless steel 304, 316, ocr18Ni9Ti, pure copper, brass, aluminum alloy, titanium alloy, monel, polytetrafluoroethylene, teflon, cinnabar sand, activated carbon and molecular sieve.

Workers who contact liquid nitrogen equipment and equipment need to wear loose pure cotton gloves, work clothes and protective glasses.

Example 1, description figure 1. A derrick 1, a power 2, a rotary table 3, a traveling block 4, a crown block 5, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, an autonomous seal 8, a rotary table-driven liquid nitrogen rotary conveyor or a motor-driven liquid nitrogen rotary conveyor 9, a liquid nitrogen delivery drill pipe 10, a low-temperature cryogenic drill bit 11, a liquid nitrogen pump 12, an air compressor 13 and a hydraulic flusher 14 are mechanically, pipeline-connected, electrically-connected and thermally-connected to form the rotary-drill low-temperature cryogenic rapid drilling device. The cutting edge 49 and the gauge 50 of the low-temperature cryogenic drill bit 11 are manufactured by adopting an impregnated diamond process, and the material is low-temperature cryogenic resistant material with low expansion rate and compatibility consistent with that of the drill bit body 45. The liquid nitrogen control body 46 is made of light low temperature resistant cryogenic resin. The drilling power of the drill bit is provided with low rotating speed by a liquid nitrogen rotary conveyor 9 driven by a turntable or a motor, and the motor adopts a speed-adjustable motor or a (BLDCM) motor. The whole bearing capacity of the liquid nitrogen rotary conveyor 9 driven by the turntable and the motor can reach 350 tons. The drilling caliber of the drill bit is 216mm, the penetration rate of the drill hole in the hard rock is 72 meters continuously drilled every day and night, and the time occupied by connecting and pulling a drill rod, obtaining a core, stopping the drill when the drill is stuck, heating and blowing, deslagging and chip removal is not included. When a drill sticking accident occurs, the vehicle should be stopped naturally, the vehicle cannot be driven or backed, and the drill rod of the drill bit must not be damaged by blowing liquid nitrogen in the system by an air compressor to restore the temperature to zero centigrade. The whole worker wears the protective article and the human body can not contact the liquid nitrogen. When an accident occurs, the vehicle is stopped firstly, the main valve of the liquid nitrogen tank wagon is closed, the liquid nitrogen pump is stopped, the air compressor is connected to blow off liquid nitrogen in the system, and the temperature is restored to be higher than zero degree centigrade.

The embodiment 1 is suitable for geothermal resource development engineering, petroleum and natural gas resource development engineering, coal mine resource development engineering, underground water salt well resource development engineering and geological mineral deposit exploration and development engineering. Is suitable for the drilling engineering of the ultra-deep well with low-quality resources.

Example 2, description attached figure 2. The drilling device is characterized in that a derrick 1, a power 2, a crown block 5, a walking beam 15, a hydraulic flusher 14, a liquid nitrogen tank wagon 6, a liquid nitrogen delivery pipe 7, a liquid nitrogen controller 16, a drilling bit 17, a liquid nitrogen pump 12 and an air compressor 13 are mechanically connected, connected by pipelines, electrically connected and thermally connected to form the drilling device.

The embodiment 2 is suitable for the construction of various geotechnical engineering and is suitable for drilling in hard rock with a vertical angle or a small inclined angle with a ground plane. The diameter of the hole is 300 mm-2000 mm, and the excavation penetration rate is 3 m continuously drilled per hour. The material of the churn drill bit 17 is integral alloy steel. The residue and the scraps generated in the shallow layer of the drill hole are brought out of the ground by the gasification of liquid nitrogen, the residue and the scraps generated in the deep part of the drill hole are brought out of the ground by high-pressure compressed air generated by an air compressor, a drill bit is cooled by the liquid nitrogen (dry drilling), and drilling fluid or mud is rarely used.

Claims

1. Low temperature cryrogenic quick drilling equipment, by derrick (1), power (2), carousel (3), traveling block (4), overhead traveling crane (5), liquid nitrogen tank wagon (6), liquid nitrogen conveyer pipe (7), independently sealed (8), carousel drive liquid nitrogen rotary conveyor or motor drive liquid nitrogen rotary conveyor (9), liquid nitrogen conveying drilling rod (10), low temperature cryrogenic drill bit (11), liquid nitrogen pump (12), air compressor machine (13), hydraulic flushing ware (14) are respectively through mechanical connection, the pipe connection, electric power connection, thermal connection constitutes rotary drill low temperature cryrogenic quick drilling equipment, characterized by: a liquid nitrogen outlet of a liquid nitrogen tank car (6) is connected with a liquid nitrogen inlet of a liquid nitrogen pump (12) through an automatic seal (8), a liquid nitrogen outlet of the liquid nitrogen pump (12) is connected with an inlet of one end of a liquid nitrogen conveying pipe (7) through an automatic seal (8), an outlet of the other end of the liquid nitrogen conveying pipe (7) is connected with an inlet of a liquid nitrogen conveying bent pipe (18) in a rotary table driving liquid nitrogen rotary conveyor or a motor driving liquid nitrogen rotary conveyor (9) through an automatic seal (8), an outlet of a liquid nitrogen conveying shaft (19) in the rotary table driving liquid nitrogen rotary conveyor or the motor driving liquid nitrogen rotary conveyor (9) is connected with an internal thread joint (34) in a liquid nitrogen conveying drill rod (10) through the automatic seal (8), the liquid nitrogen conveying drill rod (10) is sequentially connected with the head and the tail through the automatic seal.

2. The cryogenic rapid drilling device according to claim 1, wherein: by derrick (1), power (2), overhead traveling crane (5), walking beam (15), water conservancy flusher (14), liquid nitrogen tank wagon (6), liquid nitrogen conveyer pipe (7), liquid nitrogen controller (16), the drill bit (17) is bored to the pause, liquid nitrogen pump (12), air compressor machine (13), respectively through mechanical connection, the pipe connection, the electric power coupling, heat coupling constitutes the pause and bores low temperature deep cold quick drilling device, liquid nitrogen tank wagon (6) liquid nitrogen export is through independently sealing (8) and liquid nitrogen pump (12) liquid nitrogen access connection, liquid nitrogen pump (12) export is through independently sealing (8) and liquid nitrogen conveyer pipe (7) one end access connection, liquid nitrogen conveyer pipe (7) are connected through independently sealing (8) end to end in proper order, top connection (55) are connected an organic whole through independently sealing (8) in terminal and liquid nitrogen controller (16).

3. The cryogenic rapid drilling device according to claim 1, wherein: the rotary table driving liquid nitrogen rotary conveyor (9) is formed by respectively connecting a liquid nitrogen conveying bent pipe (18), a liquid nitrogen conveying shaft (19), a compensation corrugated pipe (20), an end face seal (21), a radial seal (22), an axial bearing (23), a radial bearing (24), a slide way (25) and a lifting ring (26) into a whole through a shell (27), wherein the liquid nitrogen conveying bent pipe (18) is a bent double-layer double-end seal center through pipeline, a sandwich layer is vacuumized, the liquid nitrogen conveying shaft (19) is a solid cylinder with a center through, one end plane and the other end are provided with an external thread connector, the inner surface of the center is provided with a heat insulation layer, the compensation corrugated pipe (20) is a double-layer corrugated pipe with a center through double-end face seal center, the sandwich layer is vacuumized, the end face seal (21) is a circular insulator with a center through ring, the radial, the radial bearing (24) is a ball bearing, the slide way (25) is a plate-type track slide way, the lifting ring (26) is a triangular lifting ring, the shell (27) is a hollow cylinder, the liquid nitrogen conveying bent pipe (18) has one end connected with one end of the compensating corrugated pipe (20) through the shell (27), the other end surface of the compensating corrugated pipe (20) is connected with one end of the end face seal (21), the other end surface of the end face seal (21) is in sliding contact with one end surface of the liquid nitrogen conveying shaft (19), the liquid nitrogen conveying shaft (19) is respectively connected with the shell (27) through the axial bearing (23) and the radial bearing (24), the end face seal (21) is arranged in the middle of the shell (27) and is in sliding contact with one end surface of the liquid nitrogen conveying shaft (19), the radial seal (22) is fixed in the middle of the shell (27) and is, the lifting ring (26) is arranged at the upper end of the shell (27).

4. The cryogenic rapid drilling device according to claim 1, wherein; the motor-driven liquid nitrogen rotary conveyor (9) is formed by a liquid nitrogen conveying bent pipe (18), a liquid nitrogen conveying shaft (19), a compensation corrugated pipe (20), an end face seal (21), a radial seal (22), an axial bearing (23), a radial bearing (24), a slide way (25), a lifting ring (26), a large gear (28), a small gear (29) and a motor (30) which are respectively connected into a whole through a shell (31), the liquid nitrogen conveying bent pipe (18) is a bent double-layer two-end seal center through pipeline, a sandwich layer is vacuumized, the liquid nitrogen conveying shaft (19) is a solid cylinder which is through at the center, one end plane and the other end are provided with an external thread joint, the inner surface of the center is provided with a heat insulation layer, the compensation corrugated pipe (20) is a double-layer corrugated pipe which is through at the center of two end face seals, the sandwich layer is vacuumized, the axial bearing (23) is a one-way thrust roller bearing, the radial bearing (24) is a ball bearing, the slide way (25) is a plate-type track slide way, the lifting ring (26) is a triangular lifting ring, the shell (31) is connected with the gear box for the lower part of the hollow cylinder, the liquid nitrogen conveying bent pipe (18) has one end connected with one end of the compensation corrugated pipe (20) through the shell (31), the other end surface of the compensation corrugated pipe (20) is connected with one end of the end face seal (21), the other end surface of the end face seal (21) is in sliding contact with one end surface of the liquid nitrogen conveying shaft (19), the liquid nitrogen conveying shaft (19) is respectively connected with the shell (31) through the axial bearing (23) and the radial bearing (24), the lifting ring (26) is installed at the upper end of the shell (31), the end face seal (21) is installed in the middle of the shell (31) and is in sliding contact with one end surface of the liquid nitrogen conveying shaft (19, the slide way (25) is arranged at the lower end of the machine shell (31).

5. The cryogenic rapid drilling device according to claim 1, wherein: liquid nitrogen conveying pipe (7) are by front connection (40), rear connector (41), outer bellows (42), interior bellows (43), fixture (44) are through outer bellows (42), interior bellows (43), front connection (40), rear connector (41) are connected integratively respectively, outer bellows (42), interior bellows (43) respectively with front connection (40), rear connector (41) are connected, intermediate layer is filled pearly-lustre sand and is taken out low vacuum in outer bellows (42) and interior bellows (43), front connection (40) terminal surface has the arc concave surface, overcoat fixture (44), fixture (44) have the curved hook body for ring shape both sides, rear connector (41) terminal surface has the arc concave surface.

6. The cryogenic rapid drilling device according to claim 1, wherein: cryogenic drill bit (11) is by bit body (45), liquid nitrogen control body (46), draw-in groove (47), liquid nitrogen nozzle (48), cutting edge (49), guarantor diameter (50), arrange sediment groove (51) and link to each other an organic whole respectively through bit body (45), bit body (45) are solid cylinder, one end has external thread joint, the other end is connected with rectangle cutting edge (49), cutting edge (49) both sides have symmetrical oval liquid nitrogen nozzle (48), bit body (45) circumference equidistance is stagger the example and is distributed guarantor diameter (50), arrange sediment groove (51), there is the cylindrical liquid nitrogen control body of symmetry diplopore (46) in bit body (45), bit body (45) inside has Y shape pore and link up with external thread joint, liquid nitrogen control body (46) are free rotation state in bit body (45).

7. The cryogenic rapid drilling device according to claim 1, wherein: the self-sealing body (8) is formed by connecting a sealing body (52) into a whole through a clamping plate (53), the sealing body (52) is circular, the cross section of the sealing body is U-shaped, the center of the sealing body penetrates through the body and is movably connected with the annular tooth groove clamping plates (53) on two sides of the circular.

8. The cryogenic rapid drilling device according to claim 1, wherein: liquid nitrogen controller (16) is by shell body (54), top connection (55), lower nozzle (56), electric switch (57) link up an organic whole respectively through shell body (54), shell body (54) link up both ends for double-deck center have ring shape plane to connect one end plane and lower nozzle (56) to be connected, the thermal-insulated material of pearlite sand is filled to its double-deck intermediate layer, one side is connected with electric switch (57), its electric switch (57) control rod transversely stretches into shell body (54) middle part, have the control of liquid nitrogen circulation of symmetry diplopore heart component with cross section U-shaped both sides, through shell body (54), one end plane link up down nozzle (56) with cylindrical center and is connected.

9. The cryogenic rapid drilling device according to claim 1, wherein: the hydraulic flusher (14) is formed by respectively connecting a shell (58), an upper water inlet pipe (59) and a lower water outlet pipe (60) into a whole through the shell (58), the shell (58) is sealed at the periphery, the upper center and the lower center of the shell are provided with cylinders with symmetrical round holes, the upper water inlet pipe (59) is arranged at one side, and the lower water outlet pipe (60) is arranged at the other side.

10. The cryogenic rapid drilling device according to claim 1, wherein: the liquid nitrogen conveying drill rod (10) is formed by connecting an external thread connector (33), an internal thread connector (34), an inner tube (35), a supporting body (36), an air pumping head (37), a balancing body (38) and a corrugated tube (39) into a whole through the outer tube (32), the outer tube (32) penetrates through a cylinder as the center, two ends of the outer tube are connected with the external thread connector (33) respectively, the internal thread connector (34) is connected, the inner tube (35) penetrates through the cylinder as the center, one end of the inner tube is connected with the corrugated tube (39), the external thread connector (33) is connected, the other end of the outer tube is connected with the internal thread connector (34), the middle of the inner tube is connected with the outer tube (32) through the supporting body (36) into a whole, high vacuum is pumped in an interlayer between the inner tube (35) and the outer.