CN218991506U - Drilling PDC drill bit for natural gas geology - Google Patents

Abstract

The utility model discloses a drilling PDC drill bit for natural gas geology, which comprises a PDC drill bit main body, wherein a drill rod is fixedly arranged at the top of the PDC drill bit main body in a threaded manner, a plurality of blades are fixedly connected to the outer side of the bottom of the PDC drill bit main body, a plurality of cutting teeth are fixedly connected to the outer side of the bottom of the blades, the blades and the cutting teeth are matched, so that efficient drilling operation can be performed on the natural gas geology, a first water through groove is formed in the top of the PDC drill bit main body, and a plurality of cooling mechanisms communicated with the first water through groove are arranged on the PDC drill bit main body. According to the utility model, through the arrangement of the cooling mechanism, the extracting mechanism and the annular groove, the blades and the cutting teeth can be subjected to heat transfer cooling, the phenomenon that the blades are rubbed due to the impact force of water can be effectively avoided, and through the arrangement of the temperature measuring mechanism, the temperature of cooling water in the annular groove can be detected, and when the temperature of the cooling water is detected to be higher, a warning prompt is given to personnel for replacement.

Description

Drilling PDC drill bit for natural gas geology

Technical Field

The utility model relates to the technical field of drilling PDC drill bits, in particular to a drilling PDC drill bit for natural gas geology.

Background

In natural gas geological drilling, need use PDC drill bit, in PDC drill bit's course of working, PDC drill bit is at high-speed rotation and in-process that well rock rubs, produces heat easily, in order to improve PDC drill bit's safety in utilization, adopts in the in-process that the drill bit worked generally to spray water to the drill bit cooling, for example application number: 201410418743.0 the utility model relates to a rotary combined PDC drill bit for natural gas core drilling, the PDC drill bit mainly comprises a cylindrical drill body and a drill bit main body, the drill bit main body comprises a main drill bit and an auxiliary drill bit, a connecting groove is formed between the drill bit main body and the cylindrical drill body, the end face of the main drill bit is in a truncated cone shape, the end face of the auxiliary drill bit is in a zigzag shape, an included angle between the main drill bit and the auxiliary drill bit is-degree, a blade wing is arranged on the end face of the main drill bit, cutting teeth are arranged on the blade wing, a rotatable triangular spray head is arranged on the end face of the main drill bit, the rotatable triangular spray head is connected with circular internal flow passages through connectors, the circular internal flow passages are positioned in the cylindrical drill body, and the number of the circular internal flow passages is equal to the number of the rotatable triangular spray heads;

in the above patent, through the mode of cooling down to the drill bit water spray, under the effect of water impact force, the impact force of water to the drill bit further aggravates the wearing and tearing of PDC drill bit easily, and then reduces the life of PDC drill bit, synthesizes above-mentioned condition, consequently we propose a drilling PDC drill bit that natural gas geology was used.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a drilling PDC drill bit for natural gas geology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a drilling PDC drill bit that natural gas geology was used, includes the PDC drill bit main part, the top thread tightening of PDC drill bit main part has the drilling rod, the bottom outside fixedly connected with of PDC drill bit main part has a plurality of vanes, the bottom outside fixedly connected with of vane is a plurality of cutting teeth, cooperatees through vane and cutting teeth, can carry out efficient drilling operation to natural gas geology, first water-passing channel has been seted up at the top of PDC drill bit main part, be provided with a plurality of cooling mechanisms that are linked together with first water-passing channel on the PDC drill bit main part, a plurality of cooling mechanisms and a plurality of vane one-to-one set up, carry out heat transfer cooling treatment to the vane through cooling mechanism, fixed cover is equipped with the ring on the drilling rod, the ring channel has been seted up to the bottom of ring channel, the cooling water is filled in the ring channel, the bottom fixedly connected with ring channel matched with annular baffle, annular baffle movable cover is established on the drilling rod, the bottom of annular baffle is fixed with a plurality of water-passing pipes that are linked together with ring channel inside, the cooling mechanism that cooling mechanism is linked together with corresponding cooling mechanism, the cooling mechanism is linked to each other at the side of ring channel, the side of the ring channel is reminded to the side of the ring channel is drawn through the ring channel, the side is connected with the ring channel is drawn in time, the side of the ring channel is connected with the side of the ring channel, the side of the ring channel is drawn in time, the side is connected with the ring channel is drawn in the side of the ring channel, the side is drawn in time, the side is drawn to the side to the ring channel is drawn to the side, and the side is drawn to the side, and the side is drawn to the side.

Preferably, the cooling mechanism is including seting up the limbers in PDC bit main part outside bottom, a plurality of limbers and a plurality of blade one-to-one setting, one side fixedly connected with a plurality of heat conduction blocks that the blade is close to PDC bit main part, one side that the blade that corresponds was kept away from to the heat conduction block extends to the limbers in, the setting of heat conduction block can be with the heat transfer of blade to the limbers in, the limbers is close to one side of first limbers and is linked together with first limbers, the intercommunicating pore has been seted up on the top inner wall of limbers, the sealed movable cover of water pipe is established in the intercommunicating pore that corresponds, realize intercommunicating pore and ring channel's intercommunication through the water pipe.

Preferably, the extraction mechanism includes the water pump, the mounting groove has been seted up on the right side of drilling rod, water pump fixed mounting is on the top inner wall of mounting groove, fixedly connected with battery on the bottom inner wall of mounting groove, battery and water pump electric connection, the battery supplies power for the water pump, the front side of water pump is fixed and electric connection has wireless remote control switch, wireless remote control switch matches and is provided with external remote controller, wireless remote control switch's setting can realize remote control's effect, the discharge end of water pump extends to in the second water passing groove, the extraction end of water pump extends to in the ring channel and fixedly connected with suction head, cooperate through water pump and suction head, can extract the water in the ring channel.

Preferably, the temperature measurement reminding mechanism comprises a temperature sensor fixedly connected to the left side of the top of the circular ring, the detection end of the temperature sensor extends into the annular groove, the temperature sensor is used for detecting the temperature of cooling water in the annular groove, the left side top of the drill rod is fixedly connected with an audible-visual annunciator, the front side of the audible-visual annunciator is fixedly and electrically connected with a controller, the controller is electrically connected with the temperature sensor, and people can be reminded through the audible-visual annunciator when the temperature of water is detected to be higher through the setting of the audible-visual annunciator.

Preferably, the connecting groove has been seted up at the top of PDC bit main part, the connecting groove is alternately linked together with first water channel, the outside movable contact of inner wall and drilling rod of connecting groove, the thread groove has all been seted up to the both sides of drilling rod, thread groove internal thread cover is equipped with T shape fixing bolt, be connected with the drilling rod through T shape fixing bolt realization PDC bit main part, the both sides of PDC bit main part are all set up flutedly, one side that two T shape fixing bolts kept away from each other extends to in the recess that corresponds respectively, PDC bit main part thread bush is established on two T shape fixing bolts.

Preferably, the right side of the top of the circular ring is embedded and fixed with a water inlet pipe communicated with the inside of the circular groove, a blocking cover is sleeved on the water inlet pipe through threads, and water in the circular groove is replaced through the water inlet pipe.

Preferably, the one-way valve is fixedly arranged in the water pipe, the top of the one-way valve is an outlet, and the one-way valve is arranged, so that the phenomenon that water in the annular groove flows out through the water pipe can be effectively avoided.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the cooperation of the cooling mechanism, the extraction mechanism, the circular ring and the annular groove, cooling water can circularly flow in the water through hole, so that the effect of heat transfer cooling on the blades and the cutting teeth can be realized, and the phenomenon of blade friction aggravated by the impact force of water can be effectively avoided through a heat transfer cooling mode;

2. through the arrangement of the temperature measurement reminding mechanism, the temperature of the cooling water in the annular groove can be detected in real time, and when the temperature is detected to be higher than a preset value, a person can be warned and reminded in time, so that the person can conveniently replace the cooling water in time;

3. through the matching of the PDC bit main body, the blades and the cutters, the natural gas geology can be subjected to efficient drilling operation;

according to the utility model, through the arrangement of the cooling mechanism, the extracting mechanism and the annular groove, the blades and the cutting teeth can be subjected to heat transfer cooling, the phenomenon that the blades are rubbed due to the impact force of water can be effectively avoided, and through the arrangement of the temperature measuring mechanism, the temperature of cooling water in the annular groove can be detected, and when the temperature of the cooling water is detected to be higher, a warning prompt is given to personnel for replacement.

Drawings

FIG. 1 is a schematic diagram of the front view of a drilling PDC drill bit for natural gas geology according to the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

fig. 4 is a schematic bottom perspective view of a PDC bit body, blades and cutter attachment for a drilling PDC bit for natural gas geology according to the present utility model.

In the figure: 100. a PDC bit body; 101. a blade; 102. cutting teeth; 103. a drill rod; 1. a first water passage groove; 2. a water through hole; 3. a heat conduction block; 4. a circular ring; 5. a communication hole; 6. a water pipe; 7. t-shaped fixing bolts; 8. a second water-passing groove; 9. a connecting pipe; 10. an annular groove; 11. a temperature sensor; 12. an audible and visual alarm; 13. a mounting groove; 14. a water pump; 15. a wireless remote control switch; 16. suction head.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.

Referring to fig. 1-4, a drilling PDC bit for natural gas geology comprises a PDC bit main body 100, a drill rod 103 is screwed on the top of the PDC bit main body 100, a connecting groove is formed in the top of the PDC bit main body 100, the inner wall of the connecting groove is movably sleeved with the outer side of the drill rod 103, threaded grooves are formed in two sides of the drill rod 103, T-shaped fixing bolts 7 are sleeved in the threaded grooves, grooves are formed in two sides of the PDC bit main body 100, one sides, far away from each other, of the two T-shaped fixing bolts 7 extend into corresponding grooves respectively, the threaded sleeves of the PDC bit main body 100 are arranged on the two T-shaped fixing bolts 7, bolt holes are formed in the inner wall of one side, far away from the opening of the grooves, of the grooves are connected with the outer side of the corresponding T-shaped fixing bolts 7 in a threaded manner, and the T-shaped fixing bolts 7 are in threaded connection with the threaded grooves and the corresponding bolt holes in a threaded manner, and can move in the transverse position while the T-shaped fixing bolts 7 rotate, so that the drill rod 103 is fixed in the connecting groove;

the outside of the bottom of the PDC bit main body 100 is fixedly connected with a plurality of blades 101, the outside of the bottom of the blades 101 is fixedly connected with a plurality of cutting teeth 102, the drilling operation is carried out by matching the cutting teeth 102 with the blades 101, the top of the PDC bit main body 100 is provided with a first water through groove 1, the connecting groove is communicated with the first water through groove 1 in a crossing way, the PDC bit main body 100 is provided with a plurality of cooling mechanisms communicated with the first water through groove 1, the cooling mechanisms are arranged in one-to-one correspondence with the blades 101, the cooling mechanism comprises water holes 2 formed in the bottom of the outer side of the PDC bit main body 100, the water holes 2 are in one-to-one correspondence with the blades 101, one side of each blade 101 close to the PDC bit main body 100 is fixedly connected with a plurality of heat conducting blocks 3, one side of each heat conducting block 3, away from the corresponding blade 101, extends into the corresponding water hole 2, the heat conducting blocks 3 can guide heat into the corresponding water hole 2, one side of each water hole 2 close to the first water through groove 1 is communicated with the first water through groove 1, and a communication hole 5 is formed in the inner wall of the top of each water through hole 2;

the drill rod 103 is fixedly sleeved with a circular ring 4, the bottom of the circular ring 4 is provided with an annular groove 10, the annular groove 10 is filled with cooling water, the bottom of the circular ring 4 is fixedly connected with an annular baffle matched with the annular groove 10, the annular baffle is movably sleeved on the drill rod 103, the inside of the annular groove 10 is plugged through the annular baffle, the right side of the top of the circular ring 4 is fixedly embedded with a water inlet pipe communicated with the inside of the annular groove 10, the inner wall of the top of the annular groove 10 is provided with a first circular hole for fixedly installing the water inlet pipe, the water inlet pipe is sleeved with a plugging cover, the outer side of the water inlet pipe is provided with external threads, the inner side of the plugging cover is provided with internal threads, the external threads are meshed with the internal threads, the plugging cover can be taken down in a rotary mode, the bottom of the annular baffle is embedded and fixed with a plurality of water passing pipes 6 communicated with the inside of the annular groove 10, the bottom of the annular baffle is provided with two second circular holes, the inner walls of the second circular holes are fixedly connected with the outer sides of the corresponding water passing pipes 6, the water passing pipes 6 are movably sleeved in the corresponding communication holes 5 in a sealing manner, the outer sides of the water passing pipes 6 are adhered and coated with first sealing rubber, the outer sides of the first sealing rubber are tightly contacted with the inner walls of the corresponding communication holes 5, the sealing connection between the communication holes 5 and the corresponding water passing pipes 6 is realized through the first sealing rubber, a one-way valve is fixedly arranged in the water passing pipes 6, the top of the one-way valve is an outlet, and the one-way valve is arranged, so that the phenomenon that water in the annular groove 10 is discharged through the water passing pipes 6 can be effectively reduced;

the bottom end of the drill rod 103 is provided with a second water passing groove 8, a connecting pipe 9 is fixedly sleeved in the second water passing groove 8, the bottom end of the connecting pipe 9 extends into the first water passing groove 1, a second sealing rubber is adhered and coated on the outer side of the connecting pipe 9, the outer side of the second sealing rubber is tightly contacted with the inner wall of the first water passing groove 1, the sealing between the first water passing groove 1 and the connecting pipe 9 is realized through the second sealing rubber, the right side of the drill rod 103 is provided with an extraction mechanism, the extraction mechanism is communicated with the second water passing groove 8 and the annular groove 10, the extraction mechanism comprises a water pump 14, the right side of the drill rod 103 is provided with a mounting groove 13, the water pump 14 is fixedly arranged on the top inner wall of the mounting groove 13, a storage battery is fixedly connected on the bottom inner wall of the mounting groove 13, the storage battery is electrically connected with the water pump 14, the storage battery supplies power to the water pump 14, the front side of the water pump 14 is fixed and electrically connected with a wireless remote control switch 15, the wireless remote control switch 15 is matched with an external remote controller, the arrangement of the wireless remote control switch 15 and the external remote controller can achieve the effect of remote control, the discharge end of the water pump 14 extends into the second water through groove 8, a third circular hole is formed in the inner wall of the right side of the second water through groove 8 and is fixedly connected with the outer side of the discharge end of the water pump 14, the extraction end of the water pump 14 extends into the annular groove 10 and is fixedly connected with a water suction head 16, a fourth circular hole is formed in the inner wall of the annular groove 10, and the inner wall of the fourth circular hole is fixedly connected with the outer side of the extraction end of the water pump 14;

the utility model discloses a temperature measuring reminding mechanism which is fixedly connected with the left side of the top of a circular ring 4 and is electrically connected with the left side of a drill rod 103, wherein the temperature measuring reminding mechanism comprises a temperature sensor 11 fixedly connected with the left side of the top of the circular ring 4, the detection end of the temperature sensor 11 extends into an annular groove 10, a first through hole for fixedly mounting the detection end is formed in the inner wall of the top of the annular groove 10, the temperature of cooling water in the annular groove 10 is detected through the temperature sensor 11, an audible-visual alarm 12 is fixedly connected with the left side of the drill rod 103, a controller is fixedly and electrically connected with the left side of the audible-visual alarm 12, and the controller is electrically connected with the temperature sensor 11.

Working principle: when natural gas geology is drilled, the drill rod 103 can be driven to rotate through external driving, the drill rod 103 drives the PDC drill bit main body 100 to rotate through two T-shaped fixing bolts 7, the PDC drill bit main body 100 drives the blades 101 and the cutting teeth 102 to rotate for drilling operation, the wireless remote control switch 15 is controlled to control the water pump 14 to be started through the external remote controller in the drilling process, the water pump 14 extracts cooling water in the annular groove 10 through the water suction head 16, the extracted cooling water is discharged into the second water through the extraction end of the water pump 14, the cooling water in the second water through groove 8 sequentially enters the plurality of water through the connecting pipes 9 and the first water through grooves 1, and the cooling water in the water through holes 2 sequentially enters the annular groove 10 again through the corresponding communication holes 5 and the corresponding water through pipes 6, under the continuous extraction of the water pump 14, the cooling water in the water through holes 2 circularly flows, the blades 101 transfers heat to the corresponding heat conducting blocks 3, the heat in the flowing cooling water absorbs the heat on the blocks 3, and the cooling water in the flowing cooling water is effectively absorbed by the cooling water through the blades 101 of the corresponding heat conducting blocks, and the cooling water in the cooling mode of the cutter blades 101 is effectively avoided by the cutter blades 101, and the cooling effect of the cutter bit 101 can be effectively cooled by the heat of the cutter blades 100, and the cooling effect can be effectively reduced by the heat due to the friction phenomenon of the cutter blades 101;

meanwhile, the temperature sensor 11 detects the temperature of the cooling water in the annular groove 10, when the temperature is detected to be higher than a preset value, the temperature sensor transmits a signal to the controller, the controller controls the audible and visual alarm 12 to be started, the audible and visual alarm 12 gives out audible and visual alarm to remind a person, the person can know in time, and the person can replace the cooling water in the annular groove 10 in time.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides a drilling PDC drill bit for natural gas geology, includes PDC drill bit main part (100), the top thread tightening of PDC drill bit main part (100) has drilling rod (103), the bottom outside fixedly connected with a plurality of blades (101) of PDC drill bit main part (100), the bottom outside fixedly connected with a plurality of cutting teeth (102) of blade (101), its characterized in that, first water-passing groove (1) has been seted up at the top of PDC drill bit main part (100), is provided with a plurality of cooling mechanisms that are linked together with first water-passing groove (1) on PDC drill bit main part (100), and a plurality of cooling mechanisms and a plurality of blades (101) one-to-one set up, and fixed cover is equipped with ring (4) on drilling rod (103), and ring groove (10) have been seted up to the bottom of ring (4), and ring groove (10) intussuseption is filled with cooling water, and ring baffle movable sleeve is established on drilling rod (103), and the bottom of ring baffle is inlayed and is fixed with a plurality of water-passing pipes (6) that are linked together with (10) inside, and cooling mechanism that are linked together with first water-passing groove (1), and cooling mechanism is linked together with the bottom (9) and water-passing groove (8) are linked together, the right side of drilling rod (103) is installed extraction mechanism, and extraction mechanism is linked together with second water channel (8) and ring channel (10), and the top left side fixedly connected with temperature measurement of ring (4) reminds the mechanism, and temperature measurement reminds the mechanism and the left side fixed connection of drilling rod (103).

2. The drilling PDC drill bit for natural gas geology according to claim 1, wherein the cooling mechanism comprises a water through hole (2) formed in the outer bottom of the PDC drill bit main body (100), the water through holes (2) are in one-to-one correspondence with the blades (101), one side, close to the PDC drill bit main body (100), of each blade (101) is fixedly connected with a plurality of heat conducting blocks (3), one side, far away from the corresponding blade (101), of each heat conducting block (3) extends into the water through hole (2), one side, close to the first water through groove (1), of each water through hole (2) is communicated with the first water through groove (1), a communication hole (5) is formed in the inner wall of the top of each water through hole (2), and a water through pipe (6) is movably sleeved in the corresponding communication hole (5) in a sealing mode.

3. The drilling PDC drill bit for natural gas geology according to claim 2, characterized in that the extraction mechanism comprises a water pump (14), the right side of the drill rod (103) is provided with a mounting groove (13), the water pump (14) is fixedly arranged on the top inner wall of the mounting groove (13), a storage battery is fixedly connected to the bottom inner wall of the mounting groove (13), the storage battery is electrically connected with the water pump (14), the front side of the water pump (14) is fixedly and electrically connected with a wireless remote control switch (15), the wireless remote control switch (15) is matched with an external remote control, the discharge end of the water pump (14) extends into the second water-passing groove (8), and the extraction end of the water pump (14) extends into the annular groove (10) and is fixedly connected with a water suction head (16).

4. A drilling PDC drill bit for natural gas geology according to claim 3, characterized in that the temperature measurement reminding mechanism comprises a temperature sensor (11) fixedly connected to the left side of the top of the circular ring (4), the detection end of the temperature sensor (11) extends into the annular groove (10), the left side top of the drill rod (103) is fixedly connected with an audible and visual alarm (12), the front side of the audible and visual alarm (12) is fixedly and electrically connected with a controller, and the controller is electrically connected with the temperature sensor (11).

5. The drilling PDC drill bit for natural gas geology according to claim 1, wherein the top of the PDC drill bit main body (100) is provided with a connecting groove, the connecting groove is communicated with the first water through groove (1) in a crossing manner, the inner wall of the connecting groove is movably contacted with the outer side of the drill rod (103), both sides of the drill rod (103) are provided with threaded grooves, the threaded grooves are internally sleeved with T-shaped fixing bolts (7), both sides of the PDC drill bit main body (100) are provided with grooves, one sides, away from each other, of the two T-shaped fixing bolts (7) are respectively extended into the corresponding grooves, and the threaded sleeves of the PDC drill bit main body (100) are arranged on the two T-shaped fixing bolts (7).

6. The drilling PDC drill bit for natural gas geology according to claim 1, wherein a water inlet pipe communicated with the inside of the annular groove (10) is embedded and fixed on the right side of the top of the circular ring (4), and a blocking cover is sleeved on the water inlet pipe in a threaded manner.

7. Drilling PDC drill bit for natural gas geology according to claim 1, characterized in that a one-way valve is fixedly arranged in the water pipe (6), and the top of the one-way valve is an outlet.

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