CN115217436B - Hydrogeological exploration drilling blowout preventer - Google Patents
Hydrogeological exploration drilling blowout preventer Download PDFInfo
- Publication number
- CN115217436B CN115217436B CN202210881870.9A CN202210881870A CN115217436B CN 115217436 B CN115217436 B CN 115217436B CN 202210881870 A CN202210881870 A CN 202210881870A CN 115217436 B CN115217436 B CN 115217436B
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- plate
- blowout preventer
- sliding
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- face
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000007667 floating Methods 0.000 claims description 38
- 238000001125 extrusion Methods 0.000 claims description 31
- 229920001971 elastomer Polymers 0.000 claims description 29
- 239000005060 rubber Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 21
- 210000000078 claw Anatomy 0.000 claims description 18
- 230000002265 prevention Effects 0.000 claims description 16
- 238000010276 construction Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 11
- 239000003673 groundwater Substances 0.000 description 10
- 229920003051 synthetic elastomer Polymers 0.000 description 4
- 239000005061 synthetic rubber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a hydrogeological exploration drilling blowout preventer, which comprises an orifice blowout preventer base, wherein a drain bin is fixedly arranged on the upper end surface of the orifice blowout preventer base, a drain pipe is arranged on the side wall of the drain bin, and an external pipeline of the drain pipe is used for discharging sprayed underground water to a designated position to prevent the sprayed underground water from affecting construction.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a hydrogeological exploration drilling blowout preventer.
Background
When the exploration drilling operation is carried out in some areas with abundant groundwater resources, the water pressure and the air pressure below the rock stratum are large, after a drill bit passes through the rock stratum, groundwater below the rock stratum is easy to jet out along the drill holes, the construction progress is influenced by the submerged working surface, and when the jetted water flow pressure is large, the harm to drilling equipment and operators is easy to occur, so that the proper drilling blowout preventer is necessary to be configured when geological exploration drilling is carried out;
for example, an orifice blowout preventer with the application number of CN201310112833.2 is formed by two symmetrically arranged half bodies, a semicircular cavity is formed at the upper part of each half body, each cavity is divided into an extrusion sealing area and a pressure buffer area, semicircular synthetic rubber ring blocks are arranged in the extrusion sealing areas, a synthetic rubber ring sleeve with an opening is sleeved at the bottoms of the two half bodies, the bottoms of the synthetic rubber ring sleeves are supported by two third semicircular fixing plates, the top surfaces of the synthetic rubber ring sleeves are attached to the two third semicircular movable plates, and the two third semicircular movable plates can move downwards under the control of an extrusion device.
The blowout preventer is installed on a drill rod after hole spraying occurs, then the blowout preventer is plugged into an orifice under the pressure provided by manpower or drilling equipment, and then the blowout preventer is fixed on the orifice through a mode of a personnel locking bolt, so that the orifice spraying is prevented, the orifice spraying can be prevented, but more time is required in the process of installing the hole spraying to the blowout preventer to be fixed, a large amount of groundwater can still be sprayed out by the orifice during the process, the threat of influencing normal construction operation still exists, in addition, the blowout preventer is not suitable for the condition of high groundwater pressure, when the groundwater pressure and the air pressure are high, the resistance of the blowout preventer is high when the blowout preventer is plugged into the orifice, the blowout preventer is difficult to place, and personnel are close to the operation and are dangerous.
Disclosure of Invention
The invention provides a hydrogeological exploration drilling blowout preventer, which aims to solve the technical problems that the existing blowout preventer is poor in blowout prevention effect and has potential safety hazards in the installation process when high-pressure hole blowout is treated.
The invention relates to a hydrogeological exploration drilling blowout preventer, which adopts the following technical scheme: the utility model provides a hydrogeology exploration drilling blowout preventer, including the drill way blowout preventer base, the up end fixed mounting of drill way blowout preventer base has the drainage storehouse, be provided with the drain pipe on the lateral wall of drainage storehouse, the external pipeline of drain pipe is discharged the spun groundwater to appointed position and is avoided spun groundwater to influence the construction, the lower drilling has been seted up to the up end central point of drill way blowout preventer base, fixed welding has fixed sleeve in the outside of lower drilling, inside the drainage storehouse, fixed sleeve's on the outer wall normal running fit has the anti-impact water wheels, the case of gaining weight has been placed to the up end of anti-impact water wheels, and the case of gaining weight cup joints on fixed sleeve's outer wall, cylindrical opening has been seted up to the lower extreme of drill way blowout preventer base, the cylinder end of drill way blowout preventer base is pre-buried in ground, the circular plate of drill way blowout preventer base upper end supports on the working face of drill way, open-ended up end fixed mounting has sealing rubber board, sealing rubber board is fixed at the circular plate lower terminal surface, cylindrical opening sliding fit has the buffer assembly, a plurality of intercommunication drainage bin's water drainage groove has been seted up on the inner wall of cylindrical opening, the lower terminal surface fixed mounting of blowout preventer base has bottom backup pad.
Further, the buffer assembly comprises a floating supporting table which is in sliding fit in a cylindrical opening, an inverted round platform hole is formed in the central position of the floating supporting table, two rectangular grooves are symmetrically formed in the inner wall of the floating supporting table, a sliding extrusion rod is in sliding fit in the rectangular grooves, an inclined surface is arranged at one end of the sliding extrusion rod, the inclined surface is matched with the inclined wall of the round platform hole, the sliding extrusion rod slides in the rectangular grooves, the sliding extrusion rod moves downwards, the sliding extrusion rod is pushed to move towards the center relative to the rectangular grooves under the action of the inclined wall of the round platform hole, a conical holding claw is fixedly arranged at the other end face of the bottom of the sliding extrusion rod, the inclined surface of the conical holding claw is matched with the inclined wall of the round platform hole, an annular pressing plate is matched with the upper end face of the sliding extrusion rod, the conical holding claw is semicircular, during normal operation, the conical holding claws at two sides are separated to enable a drill bit to pass normally, and the conical holding claws at two sides are pushed to be close to the outer wall of a finally closed drill rod when the annular pressing plate is pressed down.
Further, a plurality of through holes are circumferentially formed in the floating support table, countersunk holes are formed in the lower ends of the through holes, sliding support rods are slidably matched in the through holes, one ends of the sliding support rods are fixedly welded on the annular pressing plate, limit baffles are detachably mounted at the other ends of the sliding support rods, annular grooves are formed in the upper end face of the floating support table and the outer side positions of the through holes, and reset springs are arranged between the annular grooves and the annular pressing plate.
Further, an annular push plate is welded on the outer side of the inner annular wall of the lower end face of the annular pressing plate, and a reset spring piece is arranged between the annular push plate and the sliding extrusion rod.
Further, the lower end face of the floating supporting table is fixedly provided with a conical floating plate, and the bottom of the inner ring of the conical floating plate is integrally formed with a rubber flange.
Further, the sealing rubber plate is in a truncated cone shape, and a plurality of openings are formed in the central area of the sealing rubber plate.
Further, the anti-impact water wheel comprises a water wheel main body which is in running fit with the fixed sleeve, a plurality of guide plates are integrally formed on the working face of the water wheel main body, and buffer blocks are fixedly welded in the middle positions of the guide plates.
Further, the weight box comprises a weight box main body for placing a weight, and a cover plate is matched above the weight box main body.
The beneficial effects of the invention are as follows: when the anti-spraying base for the orifice, the buffer component and the anti-impact water wheel are used, the anti-spraying device is preset at a drilling position, when hole spraying occurs, the buffer component automatically enters a working state by utilizing the impact force of hole spraying, so that water is guided to the anti-impact water wheel, and then the anti-impact water wheel is used for reducing the kinetic energy of the water to stably discharge the water, so that the situation that the working surface of the drilling is flooded and the construction progress is influenced can be effectively avoided, meanwhile, the kinetic energy of the water is reduced by utilizing the anti-impact water wheel, the impact force of high-pressure water flow on equipment is reduced, and the sprayed water is easier to be guided to discharge to avoid the threat of the high-pressure water flow to personnel.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural view of an embodiment of a hydrogeological borehole blowout preventer of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a schematic structural view of a sealing rubber plate;
FIG. 5 is a schematic view of an anti-impingement water wheel;
FIG. 6 is a partial cross-sectional view of the overall structure of the present invention;
FIG. 7 is an enlarged view of region B of FIG. 6 in accordance with the present invention;
fig. 8 is a schematic view of the installation of the present invention.
In the figure: 1. a weight-increasing box; 2. a drainage bin; 3. an orifice blowout prevention base; 4. an anti-impact water wheel; 5. sealing the rubber plate; 6. a buffer assembly; 7. fixing the sleeve; 8. a bottom support plate; 9. a drill rod; 11. a cover plate; 12. a weighting box body; 31. a drainage channel; 41. a water wheel main body; 42. a deflector; 43. a buffer block; 61. a floating support; 62. conical holding claws; 63. a sliding extrusion rod; 64. an annular pressing plate; 65. resetting the spring plate; 66. a return spring; 67. a sliding support rod; 68. a conical floating plate; 641. an annular push plate; 671. a limit baffle; 681. and a rubber flange.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the hydrogeological exploration drilling blowout preventer disclosed by the invention is shown in fig. 1 to 8, and comprises an orifice blowout preventer base 3, wherein a water discharge bin 2 is fixedly arranged at the upper end surface of the orifice blowout preventer base 3, a water discharge pipe is arranged on the side wall of the water discharge bin 2, the water discharge pipe is externally connected with a pipeline to discharge sprayed groundwater to a designated position to avoid the influence of sprayed groundwater on construction, a lower drill hole is formed in the central position of the upper end surface of the orifice blowout preventer base 3, a fixed sleeve 7 is fixedly welded outside the lower drill hole, a water tank 1 is placed in the water discharge bin 2 and is in rolling fit with an impact water preventing wheel 4 on the outer wall of the fixed sleeve 7, a cylindrical opening is formed in the lower end of the orifice blowout preventer base 3, the cylindrical end of the orifice blowout preventer base 3 is embedded in the ground, a circular plate at the upper end of the orifice blowout preventer base 3 is supported on the working surface of the orifice, a sealing plate 5 is fixedly arranged on the upper end surface of the opening, a sealing plate 5 is fixedly arranged on the lower end surface of the circular plate, a plurality of weight-increasing cylindrical water discharge plates 31 are fixedly arranged on the inner wall of the orifice blowout preventer base 6, and the weight-increasing plate is fixedly arranged on the bottom of the cylindrical water discharge bin 2, and the weight-increasing plate is fixedly arranged on the bottom of the orifice blowout preventer base 31.
During concrete work, before drilling, the drilling working face is cleaned, the orifice blowout prevention base 3, the buffer component 6 and the bottom supporting plate 8 are pre-buried in the punching position after being assembled, then the blowout prevention water wheel 4 and the weight increasing box 1 are installed, when hole blowout occurs, the buffer component 6 is impacted by high-pressure water flow, the buffer component 6 is used for enabling the sealing rubber plate 5 to be matched with the buffer component 6, the sealing rubber plate 5 is used for extruding and sealing the outer wall of the drill rod 9 positioned at the center of the drilling, meanwhile, the buffer component 6 is used for guiding high-pressure water flow which is sprayed out from the center to the water drainage groove 31, the high-pressure water flow is sprayed out from the water drainage groove 31, the sprayed water flow is opposite to the working face of the blowout prevention water wheel 4, the blowout prevention water wheel 4 is enabled to rotate under the impact of the water flow, the kinetic energy of water is reduced through the blowout prevention water wheel 4, and then the groundwater is discharged from a drain pipe on the side wall of the water drainage bin 2.
As shown in fig. 2, fig. 3, fig. 7 and fig. 8, the buffer assembly 6 comprises a floating support table 61 slidingly matched in a cylindrical opening, an inverted circular truncated cone hole is formed in the center position of the floating support table 61, two rectangular grooves are symmetrically formed in the inner wall of the floating support table 61, a sliding extrusion rod 63 is slidingly matched in the rectangular grooves, an inclined surface is formed at one end of the sliding extrusion rod 63 and matched with the inclined wall of the circular truncated cone hole, the sliding extrusion rod 63 slides in the rectangular grooves, the sliding extrusion rod 63 moves downwards, the sliding extrusion rod 63 is pushed to move towards the center relative to the rectangular grooves under the action of the inclined wall of the circular truncated cone hole, a conical holding claw 62 is fixedly arranged at the other end surface of the bottom of the sliding extrusion rod 63 and matched with the inclined wall of the circular truncated cone hole, an annular pressing plate 64 is matched with the upper end surface of the sliding extrusion rod 63, the conical holding claws 62 are semicircular, and during normal operation, the conical claws 62 at two sides are separated to enable a drill bit to pass through normally, and when the annular pressing plate 64 presses the sliding extrusion rod 63 downwards, the conical claws 62 at two sides are pushed towards the center to finally hold the outer wall of the drill rod in a closed state.
As shown in fig. 3, a plurality of through holes are circumferentially formed in the floating support table 61, counter sunk holes are formed in the lower ends of the through holes, sliding support rods 67 are slidably matched in the through holes, one ends of the sliding support rods 67 are fixedly welded on the annular pressing plate 64, limit baffles 671 are detachably mounted at the other ends of the sliding support rods 67, annular grooves are formed in the upper end faces of the floating support table 61 and the outer side positions of the through holes, return springs 66 are arranged between the annular grooves and the annular pressing plate 64, the floating support table 61 is limited by the annular pressing plate 64 through the sliding support rods 67 and the limit baffles 671, the annular pressing plate 64 cannot move upwards independently under the impact of water pressure, and the annular pressing plate 64 and the floating support table 61 are kept in an open state under normal state by the support springs 66, so that smooth passing of a center drill bit is ensured.
As shown in fig. 3, 7 and 8, an annular push plate 641 is welded to the outer side of the inner annular wall of the lower end surface of the annular pressing plate 64, and a reset spring 65 is arranged between the annular push plate 641 and the sliding extrusion rod 63, the annular push plate 641 props against the conical holding claw 62 to enable the annular pressing plate 64 to stably horizontally move to avoid the sliding extrusion rod 63 from deflecting when the sliding extrusion rod 63 is pressed down, and the reset spring 65 enables the sliding extrusion rod 63 to be always at an initial position when no external force acts, so that the conical holding claw 62 is opened to keep a central pore canal unblocked.
As shown in fig. 3, the lower end surface of the floating support 61 is fixedly provided with a conical floating plate 68, the bottom of the inner ring of the conical floating plate 68 is integrally provided with a rubber flange 681, the rubber flange 681 protrudes outwards to the center hole, when a drill bit passes through in a normal state, the rubber flange 681 is pressed to the inner ring gap of the bottom support plate 8 so as to enable the drill bit to pass smoothly, when hole spraying occurs, high-pressure water flow between the drill rod and the inner wall of the hole impacts the bottom surface of the rubber flange 681, and the rubber flange 681 transmits impact force and partial water flow to the lower part of the conical floating plate 68 so as to quickly push the conical floating plate 68 to move upwards.
As shown in fig. 4, the sealing rubber plate 5 is in a shape of a circular truncated cone, a plurality of openings are formed in the central area of the sealing rubber plate 5, the sealing rubber plate 5 is in a shape of a circular truncated cone, and when the sealing rubber plate is compressed into a shape of a circular truncated cone, the plurality of openings reserved in the center are closed, so that the central aperture is reduced to be tightly attached to the outer wall of the drill rod 9, and a large amount of water flows overflow from the orifice when hole spraying occurs.
As shown in fig. 5, the anti-impact water wheel 4 comprises a water wheel main body 41 rotatably matched with the fixed sleeve 7, a plurality of guide plates 42 are integrally formed on the working surface of the water wheel main body 41, buffer blocks 43 are fixedly welded in the middle of the guide plates 42, water flow sprayed by the water drainage grooves 31 is impacted on the guide plates 42 and the buffer blocks 43, so that the kinetic energy of the water is converted into mechanical energy for rotating the water wheel main body 41, the kinetic energy is provided for rotating the water wheel main body 41, the water wheel main body 41 rubs with the weight-increasing box 1, the kinetic energy for rotating the water wheel main body 41 is reduced by using friction force, and the impact force of the water flow on equipment is directly generated when high-pressure water flow is diverted and is sprayed from a plurality of blocking lightening holes.
As shown in fig. 1, the weight increasing box 1 comprises a weight increasing box main body 12 for placing a weight increasing object, a cover plate 11 is matched above the weight increasing box main body 12, and during construction, the weight of the weight increasing box 1 is increased by adding stone, iron and other wastes into the weight increasing box main body 12, so that pressure is provided for blowout prevention equipment, the shock resistance of the blowout prevention equipment is improved, the total weight of the blowout prevention device can be reduced, and the blowout prevention device is convenient to install and transfer.
In summary, when the hole spraying occurs, the high-pressure water flow between the drill rod and the inner wall of the drill hole impacts the bottom surface of the rubber flange 681, the rubber flange 681 transmits the impact force and part of the water flow to the lower part of the conical floating plate 68 so as to rapidly push the floating support 61 to move upwards, the floating support 61 and the annular pressing plate 64 move relatively, and the sliding extrusion rod 63 is extruded to make the conical holding claws 62 at two sides approach the center;
in the process, the water flow impacts the conical floating plate 68 to enable the conical holding claw 62 to move downwards relative to the floating support table 61, enable the conical holding claw 62 to extend to the inner side of the rubber flange 681, then close to the center under the pressure of the central water column and the extrusion of the floating support table 61, and hold the drill rod 9 tightly;
simultaneously, the floating support table 61 and the annular pressing plate 64 move to the top end to prop against the sealing rubber plate 5, the sealing rubber plate 5 is compressed into a round cake shape under the impact of high-pressure water flow, the central area of the sealing rubber plate 5 is covered on the outer wall of the drill rod 9 in a closed manner, the conical holding claw 62 and the conical floating plate 68 form a curved surface under the continuous impact of the high-pressure water flow, and the sprayed water flow is guided to the drainage groove 31;
the water flow sprayed by the water discharge groove 31 is impacted on the guide plate 42 and the buffer block 43, so that the kinetic energy of the water is converted into the mechanical energy for the rotation of the water wheel main body 41, the kinetic energy is provided for the rotation of the water wheel main body 41, the water wheel main body 41 rubs with the weight-increasing box 1, the rotational kinetic energy of the water wheel main body 41 is reduced by using the friction force, and the impact force of the water flow on equipment is directly generated when the high-pressure water flow is turned and is blocked for a plurality of times;
the external pipeline of the drain pipe arranged on the side wall of the drain bin 2 discharges the sprayed underground water to a designated position so as to avoid the influence of the sprayed underground water on construction.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a hydrogeological exploration drilling blowout preventer, includes orifice blowout prevention base (3), its characterized in that: the upper end face of the orifice blowout prevention base (3) is fixedly provided with a drain bin (2), the center position of the upper end face of the orifice blowout prevention base (3) is provided with a lower drilling hole, the outer side of the lower drilling hole is fixedly welded with a fixed sleeve (7), an anti-impact water wheel (4) is rotatably matched on the outer wall of the fixed sleeve (7) and inside the drain bin (2), the upper end face of the anti-impact water wheel (4) is provided with a weight increasing box (1), the weight increasing box (1) is sleeved on the outer wall of the fixed sleeve (7), the lower end of the orifice blowout prevention base (3) is provided with a cylindrical opening, the upper end face of the opening is fixedly provided with a sealing rubber plate (5), the cylindrical opening is in sliding fit with a buffer assembly (6), the inner wall of the cylindrical opening is provided with a plurality of drain grooves (31) communicated with the drain bin (2), and the lower end face of the orifice blowout prevention base (3) is fixedly provided with a bottom supporting plate (8);
the buffer assembly (6) comprises a floating supporting table (61) which is in sliding fit in the cylindrical opening, an inverted circular truncated cone hole is formed in the center position of the floating supporting table (61), two rectangular grooves are symmetrically formed in the inner wall of the floating supporting table (61), a sliding extrusion rod (63) is in sliding fit in the rectangular grooves, one end of the sliding extrusion rod (63) is provided with an inclined surface which is matched with the inclined wall of the circular truncated cone hole, a conical holding claw (62) is fixedly arranged on the other end surface of the bottom of the sliding extrusion rod (63), the inclined surface of the conical holding claw (62) is matched with the inclined wall of the circular truncated cone hole, and an annular pressing plate (64) is matched with the upper end surface of the sliding extrusion rod (63);
a plurality of through holes are circumferentially formed in the floating support table (61), countersunk holes are formed in the lower ends of the through holes, sliding support rods (67) are slidably matched in the through holes, one ends of the sliding support rods (67) are fixedly welded on the annular pressing plate (64), limit baffles (671) are detachably arranged at the other ends of the sliding support rods (67), annular grooves are formed in the upper end face of the floating support table (61) and the outer side positions of the through holes, and return springs (66) are arranged between the annular grooves and the annular pressing plate (64);
an annular push plate (641) is welded on the outer side of the inner annular wall of the lower end face of the annular pressing plate (64), and a reset spring piece (65) is arranged between the annular push plate (641) and the sliding extrusion rod (63).
2. A hydrogeological drilling blowout preventer according to claim 1, wherein: a conical floating plate (68) is fixedly arranged on the lower end face of the floating support table (61), and a rubber flange (681) is integrally formed at the bottom of the inner ring of the conical floating plate (68).
3. A hydrogeological drilling blowout preventer according to claim 1, wherein: the sealing rubber plate (5) is in a truncated cone shape, and a plurality of openings are formed in the central area of the sealing rubber plate (5).
4. A hydrogeological drilling blowout preventer according to claim 1, wherein: the anti-impact water wheel (4) comprises a water wheel main body (41) which is in rotary fit with the fixed sleeve (7), a plurality of guide plates (42) are integrally formed on the working surface of the water wheel main body (41), and buffer blocks (43) are fixedly welded at the middle positions of the guide plates (42).
5. A hydrogeological drilling blowout preventer according to claim 1, wherein: the weight box (1) comprises a weight box main body (12) for placing a weight, and a cover plate (11) is matched above the weight box main body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881870.9A CN115217436B (en) | 2022-07-26 | 2022-07-26 | Hydrogeological exploration drilling blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881870.9A CN115217436B (en) | 2022-07-26 | 2022-07-26 | Hydrogeological exploration drilling blowout preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115217436A CN115217436A (en) | 2022-10-21 |
| CN115217436B true CN115217436B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210881870.9A Active CN115217436B (en) | 2022-07-26 | 2022-07-26 | Hydrogeological exploration drilling blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115217436B (en) |
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| CN205858252U (en) * | 2016-06-23 | 2017-01-04 | 陕西陕煤黄陵矿业有限公司 | A kind of coring boring blowout prevention aperture apparatus |
| CN211474068U (en) * | 2020-02-17 | 2020-09-11 | 龚宇航 | Hydrogeology drilling blowout preventer |
| CN212716529U (en) * | 2020-08-17 | 2021-03-16 | 六盘水师范学院 | Hydrogeology drilling blowout preventer |
| CN113137203A (en) * | 2021-05-27 | 2021-07-20 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
| CN216305835U (en) * | 2021-11-12 | 2022-04-15 | 苏洋 | Drilling blowout preventer for coal mine water exploration and drainage |
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2022
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| CN115217436A (en) | 2022-10-21 |
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