CN110905427A - Pneumatic processing device and method for buried drilling accident in drilling hole - Google Patents
Pneumatic processing device and method for buried drilling accident in drilling hole Download PDFInfo
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- CN110905427A CN110905427A CN201911314505.4A CN201911314505A CN110905427A CN 110905427 A CN110905427 A CN 110905427A CN 201911314505 A CN201911314505 A CN 201911314505A CN 110905427 A CN110905427 A CN 110905427A
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- 238000005553 drilling Methods 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003672 processing method Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000002002 slurry Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 239000007790 solid phase Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 238000009933 burial Methods 0.000 claims 2
- 239000003570 air Substances 0.000 description 92
- 239000007789 gas Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to a pneumatic processing device and a method for buried drilling accidents in a drilling hole, wherein the device comprises a drilling hole, a drill rod arranged in the drilling hole and a drill bit arranged at the end part of the drill rod, wherein the drilling hole is a straight hole or a directional drilling hole; arranging a pressure cavity sealed with the inner wall of the hole opening of the drill hole, wherein the method comprises a positive circulation pneumatic processing method, a reverse circulation pneumatic processing method and corresponding processing steps; through repeated operation, the drill rod is loosened, and the accident of buried drilling is solved.
Description
Technical Field
The invention relates to a pneumatic processing device and method for buried drilling accidents in a drilling hole, and belongs to the technical field of geological drilling holes.
Background
In geological drilling, no matter a straight hole or a directional drilling hole is adopted, the geological drilling hole is buried by solid phase components such as rock powder, drilling powder, mud and the like, namely, a sediment aggregate and the like in the drilling process, so that a drill rod cannot rotate and cannot be drilled and lifted; the buried drill is a drilling accident frequently encountered in geological drilling, and the existing methods for treating the accidents in the hole are more than ten, and each method has relative adaptability. At present, the main problems are: fishing, drawing, shifting, vibrating, hole sweeping, punching, jacking, wire reversing, explosion, hole expanding, through hole, cutting, hole grinding, splitting, deflection winding and the like; in some drilling accidents, such as large drilling depth, serious dead burying of a drilling tool, incapability of forming normal circulation of drilling fluid and the like, a new processing device and a new processing method are needed under the condition that the processing is difficult to perform by adopting the method.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pneumatic processing device and a pneumatic processing method for buried drilling accidents in a drilling hole, which have the advantages of simple structure, convenience in operation and stable performance.
The invention adopts the following technical scheme:
the pneumatic processing device for the buried drilling accident in the drilling hole comprises the drilling hole, a drill rod arranged in the drilling hole and a drill bit arranged at the end part of the drill rod, wherein the drilling hole is a straight hole or a directional drilling hole; a pressure cavity sealed with the inner wall of the hole opening is arranged at the hole opening of the drilling hole, the pressure cavity is sleeved on the drill rod, and the top of the pressure cavity is sealed with the outer wall of the drill rod; one side of the pressure cavity is provided with a pulp outlet pipe communicated with the inner cavity of the pressure cavity, and the pulp outlet pipe is provided with a gas discharge control valve; a connecting sleeve is arranged at the top of the drill rod, the upper part of the connecting sleeve is connected with a high-pressure connecting pipe, and a control valve A is arranged on the high-pressure connecting pipe; and an air compression device is arranged on the other side of the pressure cavity or the end part of the high-pressure connecting pipe.
The device of the invention is characterized in that a branch pipe A is arranged on a pulp outlet pipe, a control valve C is arranged on the branch pipe A, and the branch pipe A is arranged on the left side of an air discharge control valve.
The air compression device comprises a high-pressure air inlet pipe, an air compressor A, a control valve B and an air pressure gauge A, wherein the high-pressure air inlet pipe is arranged on the other side of a pressure cavity and is communicated with an inner cavity of the pressure cavity; and a branch pipe B is arranged between the control valve B and the air pressure gauge A, and the control valve E is arranged on the branch pipe B.
The device is characterized in that an air supercharger A is arranged between an air compressor A and a high-pressure air inlet pipe.
The air compression device comprises an air compressor B arranged at the end part of a high-pressure connecting pipe, and an air inlet control valve and an air pressure gauge B which are arranged on the right side of the air compressor B and are arranged on the high-pressure connecting pipe; and a branch pipe C communicated with the inner cavity of the pressure cavity is arranged on the other side of the pressure cavity, and a control valve D is arranged on the branch pipe C.
The air compressor B is arranged between the air compressor B and the high-pressure connecting pipe.
The invention relates to a pneumatic processing method for buried drilling accidents in a drilling hole, which comprises a reverse circulation pneumatic processing method, wherein the reverse circulation pneumatic processing method comprises the following steps:
step one, the top of the pressure cavity and the outer wall of the drill rod are sealed, the top of the drill rod, the connecting sleeve and the high-pressure connecting pipe are hermetically connected,
step two, closing a control valve E, a control valve A and a control valve C, opening a control valve B and a relief control valve, starting an air compressor A and an air supercharger A, enabling high-pressure compressed air to enter a drilling hole through a high-pressure air inlet pipe and a pressure cavity, checking the ventilation circulation condition of each pipeline, and closing the relief control valve after the relief control valve can normally exhaust;
thirdly, inflating the drilling hole by an air compressor A and an air supercharger A to enable the drilling hole to be filled with high-pressure gas, observing the pressure in the drilling hole through a barometer A, closing a control valve B after the required pressure is reached, enabling the air pressure in the drilling hole to be stable for a certain time, and continuously observing the pressure change of the barometer A at the moment;
and fourthly, after the required pressure and time are reached, quickly opening the air control valve to enable an upward air flow to be formed in the drilling hole, driving a mixture of gas, water and a solid phase to form a vortex flow to quickly rise, and instantly spraying the vortex flow out of the slurry outlet pipe.
The invention relates to a pneumatic processing method for buried drilling accidents in a drilling hole, which is characterized in that when the water level in the drilling hole is low, a water inlet of a branch pipe A is externally connected with a water pipe, a control valve C is opened to inject water into the drilling hole, a control valve E is opened simultaneously to facilitate air return, and after the water is injected into the drilling hole to a certain degree, the control valve C and the control valve C are closed to perform the steps of filling and exhausting.
The invention relates to a pneumatic processing method for buried drilling accidents in a drilling hole, which comprises a positive circulation pneumatic processing method, wherein the positive circulation pneumatic processing method comprises the following steps:
sealing the top of the pressure cavity and the outer wall of the drill rod, and sealing and connecting the top of the drill rod, the connecting sleeve and the high-pressure connecting pipe;
step two, closing the control valve D and the control valve C, opening the air inlet control valve, the control valve A and the air discharge control valve, starting the air compressor B and the air supercharger B, allowing high-pressure compressed air to enter the inner cavity of the drill rod through the high-pressure connecting pipe and the connecting sleeve, checking the ventilation circulation condition of each pipeline, and closing the air discharge control valve after the air discharge control valve can normally discharge air;
thirdly, inflating the drill rod by an air compressor B and an air supercharger B, enabling air to pass through a gap between the drill rod and the drill bit and enter the drilling hole, enabling the drill rod and the drilling hole to be filled with high-pressure gas, observing the pressure in the drill rod and the drilling hole through a barometer B, closing an air inlet control valve after the required pressure is reached, enabling the air pressure in the drill rod and the drilling hole to be stable for a certain time, and continuously observing the pressure change of the barometer B at the moment;
and fourthly, after the required pressure and time are reached, quickly opening the air control valve to enable an upward air flow to be formed in the drilling hole, driving a mixture of gas, water and a solid phase to form a vortex flow to quickly rise, and instantly spraying the vortex flow out of the slurry outlet pipe.
The invention relates to a pneumatic processing method for buried drilling accidents in a drilling hole, which is characterized in that when the water level in the drilling hole is low, a water inlet of a branch pipe A is externally connected with a water pipe, a control valve C is opened to inject water into the drilling hole (15), meanwhile, the control valve D is opened to facilitate air return, and after the water is injected into the drilling hole to a certain degree, the control valve D and the control valve C are closed to perform the steps of filling and exhausting.
The invention has the following positive effects: the invention installs a pressure cavity at the drill hole orifice, so that the pressure cavity, the drill rod and the drill hole form a closed space, the pressure pipe or the high-pressure connecting pipe of the pressure cavity is used for injecting air into the closed drill hole or the drill rod to enable the drill hole to be in a high-pressure state, then the air is instantly discharged through the discharge control valve installed on the slurry outlet pipe of the pressure cavity, an outward air flow is formed due to huge pressure difference, under the action of high pressure, a three-phase mixture formed by rock powder, water and air at the drill hole buried in the drill hole flows outward to loosen the drill rod, when the air flow is large enough, the mixture is sprayed out of the drill hole through the slurry outlet pipe, and the drill rod is loosened through repeated operation, so that the accident of buried drilling is solved.
Drawings
FIG. 1 is a schematic view of a straight hole reverse circulation pneumatic processing structure of the present invention;
FIG. 2 is a schematic view of a directional drilling reverse circulation pneumatic processing structure of the present invention;
FIG. 3 is a schematic diagram of a straight-hole positive-circulation pneumatic processing structure of the present invention;
FIG. 4 is a schematic diagram of a directional drilling positive circulation pneumatic processing structure of the present invention.
In the drawings: 1, 101, 2, 201, 3, 301 air inlet control valves, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 control valves.
Detailed Description
As shown in fig. 1-4, the pneumatic handling device for buried drilling accidents in a drilling hole of the present invention comprises a drilling hole 15, a drill rod 14 disposed in the drilling hole 15, and a drill bit 18 mounted at the end of the drill rod 14, wherein the drilling hole 15 is a straight hole or a directional drilling hole; a pressure cavity 13 sealed with the inner wall of the orifice is arranged at the orifice of the drilling hole 15, the pressure cavity 13 is sleeved on the drill rod 14, and the seal between the pressure cavity 13 and the orifice of the drilling hole 15 is a Chinese patent with the publication number of CN209339897, which is not described herein again; the top of the pressure cavity 13 is sealed with the outer wall of the drill rod 14; a slurry outlet pipe 12 communicated with the inner cavity of the pressure cavity 13 is arranged on one side of the pressure cavity, and a gas discharge control valve 10 is arranged on the slurry outlet pipe 12; a connecting sleeve 8 is installed at the top of the drill rod 14, the upper part of the connecting sleeve 8 is connected with a high-pressure connecting pipe 7, and a control valve A6 is installed on the high-pressure connecting pipe 7; and an air compression device is arranged on the other side of the pressure cavity 13 or at the end part of the high-pressure connecting pipe 7. A branch pipe A16 is attached to the outlet pipe 12, and a control valve C11 is attached to a branch pipe A16, the branch pipe A16 being provided on the left side of the discharge control valve 10.
The pneumatic processing device for the buried drilling accident in the drilling hole comprises a high-pressure air inlet pipe 9, an air compressor A1, a control valve B3 and an air pressure gauge A4, wherein the high-pressure air inlet pipe 9 is installed on the other side of a pressure cavity 13 and is communicated with an inner cavity of the pressure cavity; a branch B17 is installed between the control valve B3 and the barometer a4, and a control valve E5 is installed on the branch B17. In order to increase the pressure, an air supercharger a2 may be installed between the air compressor a1 and the high-pressure intake pipe 9.
According to the pneumatic processing device for the buried drilling accident in the drilling hole, the high-pressure connecting pipe 7 is in an inverted U shape, the air compression device comprises an air compressor B101 arranged at the end part of the high-pressure connecting pipe 7, and an air inlet control valve 301 and an air pressure gauge B401 which are arranged on the high-pressure connecting pipe 7 and positioned on the right side of the air compressor B101; on the other side of the pressure chamber 13, a branch pipe C19 is installed, which is communicated with the inner cavity of the pressure chamber, and on the branch pipe C19, a control valve D20 is installed. In order to increase the pressure, an air supercharger B201 is installed between the air compressor B101 and the high-pressure connection pipe 7.
The invention relates to a pneumatic processing method for buried drilling accidents in a drilling hole,
the first embodiment is as follows: the reverse circulation pneumatic processing method as shown in the attached figures 1 and 2 adopts the following steps:
step one, the top of the pressure cavity 13 and the outer wall of the drill rod 14 are sealed, the top of the drill rod 14, the connecting sleeve 8 and the high-pressure connecting pipe 7 are connected in a sealing way,
step two, closing a control valve E5, a control valve A6 and a control valve C11, opening a control valve B3 and a gas discharge control valve 10, starting an air compressor A1 and an air supercharger A2, enabling high-pressure compressed air to enter a drilling hole 15 through a high-pressure air inlet pipe 9 and a pressure cavity 13, checking the ventilation circulation condition of each pipeline, and closing the gas discharge control valve 10 after the gas discharge control valve 10 can normally discharge gas;
thirdly, inflating the drill hole 15 by an air compressor A1 and an air supercharger A2 to enable the drill hole to be filled with high-pressure gas, observing the pressure in the drill hole 15 through a barometer A4, closing a control valve B3 after the required high-pressure value is reached, enabling the air pressure in the drill hole 15 to be stable for a certain time, and continuously observing the pressure change of the barometer A4 at the moment;
and step four, after the required pressure and time are reached, quickly opening the air control valve 10, instantly deflating, forming high-speed vortex airflow in the annular space in the accident drilling hole due to the huge pressure difference between the pressure in the drilling hole 15 and the pressure outside the drilling hole 15 to generate a huge suction force similar to a phenomenon of tornado or blowout, forming a mixture consisting of gas, water and solid phase substances by air, water, rock powder and the like at the buried position of the accident drilling hole, and disturbing and moving the mixture under the action of the huge vortex airflow until the mixture is ejected out of the hole through the grout outlet pipe 12. Therefore, through a plurality of circulating treatments, the solid-phase object of the buried drill is gradually loosened or discharged, so that the drill rod is loosened, and the buried drill accident is treated.
When the water level in the drilling hole 15 is low, water needs to be injected into the drilling hole 15 for enhancing the treatment effect, when water is injected, the water inlet of the branch pipe A16 is externally connected with a water pipe, the control valve C11 is opened to inject water into the drilling hole 15, the control valve E5 is opened at the same time, air return is facilitated, and after the water is injected into the drilling hole 15 to a certain degree, the control valve C5 and the control valve C11 are closed, and the air charging and exhausting steps are carried out.
Example two: the positive-cycle pneumatic processing method as shown in the attached figures 3 and 4 adopts the following steps:
sealing the top of the pressure cavity 13 and the outer wall of the drill rod 14, and sealing and connecting the top of the drill rod 14, the connecting sleeve 8 and the high-pressure connecting pipe 7;
step two, closing a control valve D20 and a control valve C11, opening an air inlet control valve 301, a control valve A6 and an air discharge control valve 10, starting an air compressor B101 and an air supercharger B201, enabling high-pressure compressed air to enter the inner cavity of the drill stem 14 through a high-pressure connecting pipe 7 and a connecting sleeve 8, checking the ventilation circulation condition of each pipeline, and closing the air discharge control valve 10 after the air discharge control valve 10 can normally discharge air;
step three, inflating the drill rod 14 by using an air compressor B101 and an air supercharger B201, enabling air to pass through a gap between the drill rod 14 and the drill bit 18 and enter the drill hole 15, enabling the drill rod 14 and the drill hole 15 to be filled with high-pressure gas, observing the pressure in the drill rod 14 and the drill hole 15 through a barometer B401, closing the air inlet control valve 301 after the required pressure is reached, enabling the air pressure in the drill rod 14 and the drill hole 15 to be stable for a certain time, and continuously observing the pressure change of the barometer B401 at the moment;
after the required pressure and time are reached, quickly opening the air control valve 10 to form an upward air flow in the drilling hole 15, driving a mixture of gas, water and a solid phase to form a vortex flow to quickly rise, and instantly spraying the vortex flow out of the slurry outlet pipe 12; the solid-phase object of the buried drill is gradually loosened and discharged, so that the accident drilling tool is loosened;
when the water level in the drilling hole 15 is lower, water needs to be injected into the drilling hole 15, when water is injected, the water inlet of the branch pipe A16 is connected with the water pipe externally, the control valve C11 is opened to inject water into the drilling hole 15, the control valve D20 is opened at the same time, air return is facilitated, and after the water is injected into the drilling hole 15 to a certain degree, the control valve D20 and the control valve C11 are closed, and the air charging and exhausting steps are carried out.
When the borehole is seriously blocked and drilling fluid can not flow, namely circulation can not be formed, a reverse circulation pneumatic processing method is adopted; when the plugging in the drill hole is not serious and the drilling fluid can flow to form circulation, a reverse circulation pneumatic processing method or a forward and reverse circulation pneumatic processing method is adopted for repeated operation, so that the drilling machine is loosened.
Finally, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pneumatic processing device for buried drilling accidents in a drilling hole comprises the drilling hole (15), a drill rod (14) arranged in the drilling hole (15) and a drill bit (18) arranged at the end part of the drill rod (14), wherein the drilling hole (15) is a straight hole or a directional drilling hole;
the method is characterized in that: a pressure cavity (13) sealed with the inner wall of the orifice is arranged at the orifice of the drilling hole (15), the pressure cavity (13) is sleeved on the drill rod (14), and the top of the pressure cavity (13) is sealed with the outer wall of the drill rod (14);
a slurry outlet pipe (12) communicated with the inner cavity of the pressure cavity (13) is arranged on one side of the pressure cavity, and a gas discharge control valve (10) is arranged on the slurry outlet pipe (12);
a connecting sleeve (8) is installed at the top of the drill rod (14), the upper part of the connecting sleeve (8) is connected with a high-pressure connecting pipe (7), and a control valve A (6) is installed on the high-pressure connecting pipe (7);
and an air compression device is arranged on the other side of the pressure cavity (13) or at the end part of the high-pressure connecting pipe (7).
2. A pneumatic handling device for a drill-down event in a drill hole according to claim 1, wherein: a branch pipe A (16) is arranged on the slurry outlet pipe (12), a control valve C (11) is arranged on the branch pipe A (16), and the branch pipe A (16) is arranged on the left side of the gas discharge control valve (10).
3. A pneumatic handling device for a drill-down event in a drill hole according to claim 2, wherein: the air compression device comprises a high-pressure air inlet pipe (9) which is arranged on the other side of the pressure cavity (13) and is communicated with the inner cavity of the pressure cavity, an air compressor A (1) which is arranged at the end part of the high-pressure air inlet pipe (9), and a control valve B (3) and an air pressure gauge A (4) which are arranged on the high-pressure air inlet pipe (9);
a branch pipe B (17) is arranged between the control valve B (3) and the air pressure gauge A (4), and a control valve E (5) is arranged on the branch pipe B (17).
4. A pneumatic handling device for a drill-down event in a drill hole according to claim 3, wherein: an air supercharger A (2) is arranged between the air compressor A (1) and the high-pressure air inlet pipe (9).
5. A pneumatic handling device for a drill-down event in a drill hole according to claim 2, wherein: the air compression device comprises an air compressor B (101) arranged at the end part of the high-pressure connecting pipe (7), and an air inlet control valve (301) and an air pressure gauge B (401) which are arranged on the high-pressure connecting pipe (7) and positioned at the right side of the air compressor B (101);
and a branch pipe C (19) communicated with the inner cavity of the pressure cavity is arranged on the other side of the pressure cavity (13), and a control valve D (20) is arranged on the branch pipe C (19).
6. The pneumatic handling device of a drill-down incident in a drill hole of claim 5, wherein: an air supercharger B (201) is arranged between the air compressor B (101) and the high-pressure connecting pipe (7).
7. A pneumatic processing method for buried drilling accidents in a drilling hole is characterized by comprising the following steps: the method comprises a reverse circulation pneumatic processing method, wherein the reverse circulation pneumatic processing method comprises the following steps:
firstly, the top of the pressure cavity (13) and the outer wall of the drill rod (14) are sealed, the top of the drill rod (14), the connecting sleeve (8) and the high-pressure connecting pipe (7) are connected in a sealing way,
step two, closing a control valve E (5), a control valve A (6) and a control valve C (11), opening a control valve B (3) and a gas release control valve (10), starting an air compressor A (1) and an air supercharger A (2), enabling high-pressure compressed air to enter a drilling hole (15) through a high-pressure air inlet pipe (9) and a pressure cavity (13), checking the ventilation circulation condition of each pipeline, and closing the gas release control valve (10) after the gas release control valve (10) can normally exhaust;
step three, inflating the drill hole (15) by an air compressor A (1) and an air supercharger A (2) to enable the drill hole to be filled with high-pressure gas, observing the pressure in the drill hole (15) through a barometer A (4), closing a control valve B (3) after the required pressure is reached, enabling the air pressure in the drill hole (15) to be stable for a certain time, and continuously observing the pressure change of the barometer A (4);
and fourthly, after the required pressure and time are reached, quickly opening the air control valve (10) to enable an upward air flow to be formed in the drilling hole (15), driving a mixture of gas, water and a solid phase to form a vortex flow to quickly rise, and instantly spraying the vortex flow out of the slurry outlet pipe (12).
8. A method of pneumatically handling a burial event in a borehole according to claim 7, wherein: when the water level in the drilling hole (15) is lower, the water inlet of the branch pipe A (16) is connected with a water pipe, the control valve C (11) is opened to inject water into the drilling hole (15), the control valve E (5) is opened simultaneously, air return is facilitated, and after the water is injected into the drilling hole (15) to a certain degree, the control valve C (5) and the control valve C (11) are closed, and the filling and exhausting steps are carried out.
9. A pneumatic processing method for buried drilling accidents in a drilling hole is characterized by comprising a positive circulation pneumatic processing method, wherein the positive circulation pneumatic processing method comprises the following steps:
sealing the top of the pressure cavity (13) and the outer wall of the drill rod (14), and sealing and connecting the top of the drill rod (14), the connecting sleeve (8) and the high-pressure connecting pipe (7);
step two, closing a control valve D (20) and a control valve C (11), opening an air inlet control valve (301), a control valve A (6) and an air discharge control valve (10), starting an air compressor B (101) and an air supercharger B (201), enabling high-pressure compressed air to enter an inner cavity of a drill rod (14) through a high-pressure connecting pipe (7) and a connecting sleeve (8), checking the ventilation circulation condition of each pipeline, and closing the air discharge control valve (10) after the air discharge control valve (10) can normally discharge air;
step three, inflating the drill rod (14) by an air compressor B (101) and an air supercharger B (201), enabling air to pass through a gap between the drill rod (14) and a drill bit (18) and enter a drilling hole (15), enabling the drill rod (14) and the drilling hole (15) to be filled with high-pressure gas, observing the pressure in the drill rod (14) and the drilling hole (15) through a barometer B (401), closing an air inlet control valve (301) after the required pressure is reached, enabling the air pressure in the drill rod (14) and the drilling hole (15) to be stable for a certain time, and continuously observing the pressure change of the barometer B (401);
and fourthly, after the required pressure and time are reached, quickly opening the air control valve (10) to enable an upward air flow to be formed in the drilling hole (15), driving a mixture of gas, water and a solid phase to form a vortex flow to quickly rise, and instantly spraying the vortex flow out of the slurry outlet pipe (12).
10. A method of pneumatically handling a burial event in a borehole according to claim 9, wherein: when the water level in the drilling hole (15) is lower, the water inlet of the branch pipe A (16) is connected with a water pipe, the control valve C (11) is opened to inject water into the drilling hole (15), the control valve D (20) is opened simultaneously to facilitate air return, and after the water is injected into the drilling hole (15) to a certain degree, the control valve D (20) and the control valve C (11) are closed to perform the steps of charging and exhausting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314505.4A CN110905427B (en) | 2019-12-19 | 2019-12-19 | Pneumatic processing device and method for buried drilling accident in drilling hole |
| CN202210083370.0A CN114482886B (en) | 2019-12-19 | 2019-12-19 | Pneumatic treatment method for drill hole embedded drilling accident |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314505.4A CN110905427B (en) | 2019-12-19 | 2019-12-19 | Pneumatic processing device and method for buried drilling accident in drilling hole |
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| CN202210083370.0A Division CN114482886B (en) | 2019-12-19 | 2019-12-19 | Pneumatic treatment method for drill hole embedded drilling accident |
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| Publication Number | Publication Date |
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| CN110905427A true CN110905427A (en) | 2020-03-24 |
| CN110905427B CN110905427B (en) | 2022-05-13 |
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| CN202210083370.0A Active CN114482886B (en) | 2019-12-19 | 2019-12-19 | Pneumatic treatment method for drill hole embedded drilling accident |
| CN201911314505.4A Active CN110905427B (en) | 2019-12-19 | 2019-12-19 | Pneumatic processing device and method for buried drilling accident in drilling hole |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5561516A (en) * | 1994-07-29 | 1996-10-01 | Iowa State University Research Foundation, Inc. | Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis |
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| CA2552793A1 (en) * | 2006-04-25 | 2007-10-25 | Schramm, Inc. | Earth drilling rig having electronically controlled air compressor |
| CN205036327U (en) * | 2015-10-10 | 2016-02-17 | 中国石油集团川庆钻探工程有限公司 | Gas drilling ground manifold connection structure |
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| CN110905427B (en) | 2022-05-13 |
| CN114482886B (en) | 2023-12-15 |
| CN114482886A (en) | 2022-05-13 |
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