CN104632073A - Reverse circulation drilling method of hollow down-hole hammer - Google Patents
Reverse circulation drilling method of hollow down-hole hammer Download PDFInfo
- Publication number
- CN104632073A CN104632073A CN201310552169.3A CN201310552169A CN104632073A CN 104632073 A CN104632073 A CN 104632073A CN 201310552169 A CN201310552169 A CN 201310552169A CN 104632073 A CN104632073 A CN 104632073A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drill
- double
- hole
- reverse circulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 239000011435 rock Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000009527 percussion Methods 0.000 claims abstract description 8
- 239000002912 waste gas Substances 0.000 claims abstract description 8
- 230000037250 Clearance Effects 0.000 claims abstract description 5
- 240000007600 Lysimachia clethroides Species 0.000 claims abstract description 5
- 230000035512 clearance Effects 0.000 claims abstract description 5
- 210000000088 Lip Anatomy 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 229940105657 CATALASE Drugs 0.000 claims description 2
- 102000016938 EC 1.11.1.6 Human genes 0.000 claims description 2
- 108010053835 EC 1.11.1.6 Proteins 0.000 claims description 2
- 230000003116 impacting Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Abstract
The invention discloses a reverse circulation drilling method of a hollow down-hole hammer. The method comprises the steps that firstly, an air inlet pipe conveys compressed air to a double-channel air and water faucet from an air supply device; secondarily, the double-channel air and water faucet conveys the compressed air to an inner and outer pipe annular clearance between an initiative drill rod and a double-wall drill rod, the compressed air alternatively enters an inner cylinder of the down-hole hammer so as to push a piston of the down-hole hammer to generate high-frequency percussion, and meanwhile, a drill machine drives a drill tool to rotate; a drill core will enter a central hole of a drill bit while the drill bit breaks rock; the waste gas after percussion reaches a shaft bottom along a bottom-spraying exhaust hole of the drill bit to be sprayed out; and finally, the waste gas is guided into the central hole of the drill bit through a flow guide groove in the bottom lip face of the drill bit, and then moves upwards through a central hole channel of the drill bit, and rock debris carried in the waste gas is conveyed to the double-channel air and water faucet through the double-wall drill rod, passes through a gooseneck pipe, and enters a drill core collector through a core discharging pipe to be collected. According to the method, continuous coring and reverse circulation deslagging are achieved; and the structure is simple, use is convenient, and the rock layer breaking efficiency is high.
Description
Technical field
The present invention relates to a kind of reacting cycle continuous coring drilling technology, relate to a kind of hollow hammer hole reverse circulation drilling method specifically.
Background technology
Reacting cycle continuous coring drilling technology be a kind of when utilizing drilling well circulatory mediator return the technical method to earth's surface from shaft bottom cutting carring or rock core by drilling rod central passage, be referred to as CSR method abroad.The use of double-wall drill pipe is the most general, in addition also has individual layer and three layers of drilling rod.Circulatory mediator is pressed in well by two-tube annular space, returns, be in this way also called two-tube reacting cycle from interior tube hub passage cutting carring (heart).Divide from the circulatory mediator used, the method can be divided into again two large types: air (gas-liquid mixture) reacting cycle continuous sampling and hydraulic reverse-circulation continuous sampling.The drilling equipment that two kinds of methods use is substantially identical with drilling tool, but drilling technology is but similar not to the utmost.
Gas full well counterflush drilling technology, be also called hollow hammer hole counterflush drilling technology, the hollow hammer hole drill bit that have employed special development creeps into, its principle is that gas arrives shaft bottom along double wall drill tool, down-hole hammer and reverse circulation drill bit, and cutting carring (heart) reaches reacting cycle effect by drilling tool central passage being returned the circulating system formed to earth's surface.This technology is called as a revolution in drilling technique history.
Similar to gas full well counterflush drilling technology in reacting cycle continuous coring sample drilling technique principle, just the drill bit of the two is different, and there is an eccentric orfice at the bit central place of hollow hammer hole.The inclined hole of one 40 degree is got out, embedded with alloy column tooth at drill bit bottom side.Reacting cycle continuous coring drill bit is by impact and turn round bottom rock section fragmentation in the form of a ring, and the rock core got out is entered by drill bit bottom centre hole, and the impact of post tooth can force rock core to rupture.
Hollow hammer hole reacting cycle continuous coring sample drilling technology forms jointly by not stopping to bore acquisition rock core sample three kinds of technology continuously in the drilling well of down-hole hammer impact rotating detritus, the full well reacting cycle of fluid media (medium) and drilling well, is well-drilling technology leading in the world now.
Summary of the invention
In view of the defect that prior art exists, the object of the invention is to provide a kind of hollow hammer hole reverse circulation drilling method.
To achieve these goals, technical scheme of the present invention:
A kind of hollow hammer hole reverse circulation drilling method, comprises the steps:
First by air inlet pipe, compressed air is delivered in binary channels air water tap from feeder;
Secondly compressed air is sent in the inner and outer pipes annular clearance of kelly and double-wall drill pipe by binary channels air water tap, compressed air just alternately enters the inner casing of down-hole hammer afterwards, and then promote down-hole hammer piston generation high-frequency percussion, rig drives drilling tool to turn round simultaneously, makes the rock in shaft bottom carry out crushing operation under the double action of the percussion and rotation of drill bit;
Secondly at drill bit to catalase simultaneously, the column rock core of formation can enter in bit central hole; And the waste gas after impacting sprays steam vent arrival shaft bottom ejection at the bottom of drill bit, wash away shaft bottom and cool drill bit;
Last waste gas introduces bit central hole by the guiding gutter of bit bottom lip surface, and then return by bit central hole path, cutting carring is transported in binary channels air water tap through double-wall drill pipe, passes through gooseneck, again through row's core barrel, enter in rock core collector and collect.
At the bottom of described reverse circulation drill bit, labial surface is uniformly distributed globular tooth madding with alloy in the form of a ring.
Compared with prior art, beneficial effect of the present invention:
The present invention can realize continuous coring, reacting cycle deslagging, and structure is simple, and easy to use, broken rock efficiency is high.
Accompanying drawing explanation
Fig. 1 is the hollow hammer hole reverse circulation drilling process schematic adopting the present invention to arrange.
In figure: 1, arrange core barrel, 2, binary channels air water tap, 3, gooseneck, 4, air inlet pipe, 5, double-wall drill pipe, 6, non retern valve, 7, core barrel, 8, inner casing, 9, piston, 10, lining, 11, reverse circulation drill bit, A, feeder, B, rock core collector.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, hollow hammer hole reverse circulation drilling method of the present invention, its compressed air is entered from air inlet pipe 4 by feeder A, through binary channels air water tap 2, enter into the inner and outer pipes annular clearance of kelly and double-wall drill pipe 5 again, then non retern valve 6 is promoted, compressed air just alternately enters the inner casing 8 of down-hole hammer afterwards, promote down-hole hammer piston 9 and produce high-frequency percussion, rig drives drilling tool to turn round simultaneously, makes the rock in shaft bottom be issued to good crushing effect in the double action of the percussion and rotation of reverse circulation drill bit.Broken in the form of a ring to rock at the equally distributed in the form of a ring globular tooth madding with alloy of reverse circulation drill bit 11 end labial surface, the column rock core of formation can enter in reverse circulation drill bit centre bore; Waste gas (compressed air) after impact can arrive shaft bottom ejection along end spray steam vent, wash away shaft bottom and cool drill bit, bit central hole is introduced again by the guiding gutter of labial surface at the bottom of reverse circulation drill bit, and then return by drill bit 11 central bore passage, cutting carring (heart) is transported in binary channels air water tap 2 through double-wall drill pipe 5, by gooseneck 3, then through row's core barrel 1, enter in rock core collector B.Down-the-hole hammer reverse circulating drill bit 11 forms the high-speed jet effect that the core stablizing reverse circulating mechanism is the pressure-air from the ejection of end spray steam vent, the flow velocity of the fluid ejected is fast, pressure is low, and Involving velocity is produced to the fluid around it, cause forming low-pressure area near end spray orifice, external czermak space produces suction, forms reacting cycle.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (2)
1. a hollow hammer hole reverse circulation drilling method, is characterized in that: comprise the steps
First by air inlet pipe, compressed air is delivered in binary channels air water tap from feeder;
Secondly compressed air is sent in the inner and outer pipes annular clearance of kelly and double-wall drill pipe by binary channels air water tap, compressed air just alternately enters the inner casing of down-hole hammer afterwards, and then promote down-hole hammer piston generation high-frequency percussion, rig drives drilling tool to turn round simultaneously, make the rock in shaft bottom carry out crushing operation under the double action of the percussion and rotation of drill bit, at the bottom of described reverse circulation drill bit, labial surface is uniformly distributed globular tooth madding with alloy in the form of a ring;
Secondly at drill bit to catalase simultaneously, the column rock core of formation can enter in bit central hole; And the waste gas after impacting sprays steam vent arrival shaft bottom ejection at the bottom of drill bit, wash away shaft bottom and cool drill bit;
Last waste gas introduces bit central hole by the guiding gutter of bit bottom lip surface, and then return by bit central hole path, cutting carring is transported in binary channels air water tap through double-wall drill pipe, passes through gooseneck, again through row's core barrel, enter in rock core collector and collect.
2. hollow hammer hole reverse circulation drilling method according to claim 1, is characterized in that: arrange non retern valve between the inner and outer pipes annular clearance of described double-wall drill pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552169.3A CN104632073A (en) | 2013-11-07 | 2013-11-07 | Reverse circulation drilling method of hollow down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552169.3A CN104632073A (en) | 2013-11-07 | 2013-11-07 | Reverse circulation drilling method of hollow down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632073A true CN104632073A (en) | 2015-05-20 |
Family
ID=53211253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310552169.3A Pending CN104632073A (en) | 2013-11-07 | 2013-11-07 | Reverse circulation drilling method of hollow down-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632073A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879058A (en) * | 2015-06-04 | 2015-09-02 | 四川吉赛特科技有限公司 | Pneumatic-hydraulic modular drill rig |
| CN105178897A (en) * | 2015-10-10 | 2015-12-23 | 中国石油集团川庆钻探工程有限公司 | Gas drilling ground manifold connecting structure |
| CN106093338A (en) * | 2016-07-13 | 2016-11-09 | 煤科集团沈阳研究院有限公司 | Down-hole reacting cycle sampling desorption of mash gas process simulation test device and method of testing |
| CN107023259A (en) * | 2016-01-29 | 2017-08-08 | 中石化石油工程技术服务有限公司 | A kind of well system based on double-wall drill pipe |
| CN107893628A (en) * | 2017-11-29 | 2018-04-10 | 河北天理环保科技有限公司 | Through Air Reverse Circulation down-hole hammer drilling technology |
| CN110344752A (en) * | 2019-07-10 | 2019-10-18 | 西南石油大学 | Double-walled screw rod well system based on gas-liquid two-phase driving |
| CN112647880A (en) * | 2020-12-23 | 2021-04-13 | 中国地质大学（武汉） | Reverse circulation continuous non-integral coring method for horizontal directional drilling investigation |
| CN112943133A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core drill bit using compressed air as conveying medium and scouring medium |
| CN113309479A (en) * | 2021-07-12 | 2021-08-27 | 中国地质科学院勘探技术研究所 | Efficient coring drilling device and method for shallow sea reef limestone |
| CN113628525A (en) * | 2021-09-17 | 2021-11-09 | 西南石油大学 | Device and method for simulating rock carrying of reverse circulation eccentric flow field of gas drilling |
-
2013
- 2013-11-07 CN CN201310552169.3A patent/CN104632073A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879058B (en) * | 2015-06-04 | 2018-04-27 | 四川吉赛特科技有限公司 | A kind of dual-purpose modularization drilling machine of air water |
| CN104879058A (en) * | 2015-06-04 | 2015-09-02 | 四川吉赛特科技有限公司 | Pneumatic-hydraulic modular drill rig |
| CN105178897B (en) * | 2015-10-10 | 2018-03-30 | 中国石油集团川庆钻探工程有限公司 | A kind of gas drilling manifold of ground attachment structure |
| CN105178897A (en) * | 2015-10-10 | 2015-12-23 | 中国石油集团川庆钻探工程有限公司 | Gas drilling ground manifold connecting structure |
| CN107023259A (en) * | 2016-01-29 | 2017-08-08 | 中石化石油工程技术服务有限公司 | A kind of well system based on double-wall drill pipe |
| CN106093338A (en) * | 2016-07-13 | 2016-11-09 | 煤科集团沈阳研究院有限公司 | Down-hole reacting cycle sampling desorption of mash gas process simulation test device and method of testing |
| CN107893628A (en) * | 2017-11-29 | 2018-04-10 | 河北天理环保科技有限公司 | Through Air Reverse Circulation down-hole hammer drilling technology |
| CN107893628B (en) * | 2017-11-29 | 2019-11-19 | 邯郸市伟业地热开发有限公司 | Through Air Reverse Circulation down-hole hammer drilling technology |
| CN110344752A (en) * | 2019-07-10 | 2019-10-18 | 西南石油大学 | Double-walled screw rod well system based on gas-liquid two-phase driving |
| CN112647880A (en) * | 2020-12-23 | 2021-04-13 | 中国地质大学（武汉） | Reverse circulation continuous non-integral coring method for horizontal directional drilling investigation |
| CN112943133A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core drill bit using compressed air as conveying medium and scouring medium |
| CN113309479A (en) * | 2021-07-12 | 2021-08-27 | 中国地质科学院勘探技术研究所 | Efficient coring drilling device and method for shallow sea reef limestone |
| CN113628525A (en) * | 2021-09-17 | 2021-11-09 | 西南石油大学 | Device and method for simulating rock carrying of reverse circulation eccentric flow field of gas drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |