CN109577859A - A kind of continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery - Google Patents
A kind of continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery Download PDFInfo
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- CN109577859A CN109577859A CN201810711656.2A CN201810711656A CN109577859A CN 109577859 A CN109577859 A CN 109577859A CN 201810711656 A CN201810711656 A CN 201810711656A CN 109577859 A CN109577859 A CN 109577859A
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- 238000005553 drilling Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000005684 electric field Effects 0.000 title claims abstract description 30
- 150000001875 compounds Chemical class 0.000 title claims abstract description 23
- 239000011435 rock Substances 0.000 claims abstract description 112
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 230000003321 amplification Effects 0.000 claims abstract description 16
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 16
- 238000002242 deionisation method Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 230000008901 benefit Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 210000001367 artery Anatomy 0.000 claims abstract description 3
- 210000003462 vein Anatomy 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 6
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- 230000008569 process Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
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- 230000001052 transient effect Effects 0.000 claims description 3
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- 238000012546 transfer Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 206010061245 Internal injury Diseases 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 239000003345 natural gas Substances 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
- E21B7/00—Special methods or apparatus for drilling
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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
- E21B10/00—Drill bits
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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Abstract
The present invention relates to one kind to be used for the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery of tape cable.The system of the boring method forms are as follows: ground power supply and control equipment, continuous-tube roller, deionization pump and its mud cleaning system, cable, hydraulic line, continuous tube injection head, derrick, tape cable continuously manage, power amplification and electric pulse generator, continuous pipe connector, mud motor and electrode drill bit etc..The well drilling and rock crushing method combines traditional continuous pipe drilling well with high-voltage electricity arteries and veins well drilling and rock crushing method (including electric pulse broken rock and liquid electricity broken rock), can drilling straight-hole, it can also be used to bore directional well (including horizontal well)；High electric field pulse generating device is placed in bottomhole assembly, the transfer efficiency of energy is improved；Also have the advantages that cable decentralization is convenient, efficiency of breaking rock is high, wall quality is good, deep-well drilling cost is low etc. simultaneously.
Description
Technical field
The present invention relates to one kind for one of petroleum gas drilling development process efficient rock-breaking boring method, espespecially
One kind being used for the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery of tape cable.
Background technique
Petroleum and natural gas exploration exploration and development field constantly extends, and the research of efficient rock-breaking drilling technology is imperative.
Traditional mechanical rotary drilling is in deep-well, the ultradeep well of drilling well high temperature and pressure, with drilling efficiency is low, difficulty of construction is big, bores
The disadvantages of well is costly needs by new breaking technique for rock.
The well drilling and rock crushing mode in current more forward position mainly has: rock breaking by water jet, particle stream flow broken rock, laser drill are broken
Rock, ultrasound involve thermal energy broken rock etc..Particle flux broken rock is more demanding to the technique for wanting summation device of nozzle；Laser drill broken rock
It is excited the limitation of optical power, at present also in the experimental exploring stage；The applicable of ultrasonic wave broken rock has limitation very much, it is desirable that rock is
It is brittle；A possibility that rock breaking by water jet, laser drill broken rock, ultrasonic wave broken rock are all used for drilling well also in the experimental verification stage
It need further to verify.
High electric field pulse broken rock drilling is broken using electric pulse, and pulse electro discharge broken rock drilling is confirmed by many countries
Its feasibility.This method has the advantages that efficiency of breaking rock is high, wall quality is good, deep-well drilling cost is low etc., is to have so far
It is potential, close to industrialized broken rock mode.Be classified as two types by the locating medium of pulsed discharge: i.e. electric pulse is broken
Rock and liquid electricity broken rock.The principle of electric pulse broken rock are as follows: (voltage rising time < 500ns), rock under high pressure-burst pulse discharge voltage
Disruptive field intensity be less than liquid medium (such as conductivity be less than 300us/cm water or oil), discharge plasma channel is in rock
Portion is formed；After plasma channel is formed, the energy in high electric field pulse power supply is discharged into plasma channel, and is added to channel
Heat is (up to 104K)；Plasma channel expanded by heating generates Shock stress Wave (up to 109~1010Pa it) and to surrounding rock does
Function, so that rock interior generates " internal injury "；When Shock stress Wave is more than the self-strength of rock to the effect of rock, rock is just
It is destroyed.And when discharge plasma generate in liquid medium, the pressure wave of electric discharge can be generated in liquid medium；Liquid simultaneously
Body medium can generate bubble, and crumbling and fall for bubble can generate the pressure wave of another part.This two-part mechanical pressure ripple acts on
On rock, when this some mechanical pressure wave is more than the self-strength of rock, rock is just destroyed, and here it is liquid electricity broken rocks.
Currently, the countries and regions such as Russia, European Union, Japan and U.S. all plasma drilling technologies are studied
And exploitation.The Strathclyde university of Britain in 2007 proposes a kind of high voltage pulse discharge plasma boring method.This method
The circulation of drilling fluid is realized, and shallow straight well may be implemented.When drilling depth is excessive, drilling well is easy to cause well in this way
Wall collapses, while well track is easy deflection.Country Zhejiang University Yan Ke equality people in 2012 proposes one kind regarding to the issue above
Pulsed plasma well system.This borer system remains traditional drill string rotating characteristic, therefore can guarantee well
The wall quality of institute's drilling straight-hole, while can guarantee deeper drilling depth.Current drilling well industry is in order to pursue higher oil gas
Recovery ratio, the requirement for directional well (including horizontal well) also increasingly increase.This method can only drilling straight-hole, therefore in certain journey
There is limitation on degree.
Summary of the invention
Based on the above engineering background, it is compound for the continuous pipe high electric field pulse-machinery of tape cable that the present invention provides one kind
Rock-breaking and well-drilling method.It is by high electric field pulse rock-breaking and well-drilling mode (including electric pulse broken rock and liquid electricity broken rock) and continuous pipe drilling well
Mode combines, and cable decentralization is convenient；Traditional rotary drilling broken rock is combined with high electric field pulse well drilling and rock crushing, efficiency of breaking rock
It greatly improves；Electrode drilling tool is combined with mud motor, is suitable for boring various types of wells (straight well, directional well etc.),
More meet the trend of oil drilling development；Meanwhile high electric field pulse generating device is placed in underground, it is packaged in down with drill bit
In portion's drill assembly, improve the transfer efficiency of energy, reduce it is unnecessary along journey electric power energy loss；In addition, either
Water flooding, or the drilling fluid for balancing bottom pressure, cutting carring are that high electric field pulse drilling technology provides well
Fluid conditions.
In order to achieve the goal above, the technical scheme adopted by the invention is that: one kind being used for the continuous pipe high-voltage electricity of tape cable
The compound rock-breaking and well-drilling method of pulse-machinery.The drilling well system of the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery
System include: ground power supply and control equipment, continuous-tube roller, deionization pump and its mud cleaning system, cable, hydraulic line,
Continuous tube injection head, derrick, tape cable continuously manage, power amplification and electric pulse generator, continuous pipe connector, underground power drilling
Tool and electrode drill bit；Ground power supply and the effect for controlling equipment 1 are that power supply and coordination electrode well are provided for entire electric pulse drilling machine
The lower high-voltage pulse frequency, pulse frequency can be 5-30HZ；Deionization pump and its mud cleaning system are to provide in drilling process
Simultaneously circulating fluid carries out landwaste to ion drilling fluid；Power amplification and the effect of electric pulse generator are generated for kata-rocks
The instantaneous breakdown high voltage of stone, operating voltage can be 10-50KV；The effect of continuous pipe connector is the lower drilling tool of connection rotation
Combination is continuously managed with the irrotational tape cable in top, while transmitting electric power and drilling liquid pressure；Mud motor utilizes drilling well
Hydraulic coupling generates rotary motion and the drill assembly of lower part and electrode drill bit is driven to rotate；Electrode drill bit is used for fractured rock, makes
Wellbore is obtained gradually to extend to earth formation deep；Electrode drill bit 12 includes the high and low pressure pulsed electrode and use for electric broken rock above
In the brill tooth (common tooth and gauge and regular tooth) of mechanical drilling and the protection borehole wall；This method inherits traditional continuous pipe and bores
Most of technique of well: as realized using mud motor, the rotation broken rock of drill bit is acted, and is realized using circulation of drilling fluid flat
The functions such as the upper row of weighing apparatus strata pressure, landwaste；Control bit pressure revolving speed realizes orientation while tooth by designing drill bit is arranged
Well operations.
In entire continuous pipe high electric field pulse-compound rock-breaking and well-drilling method of machinery, when using impulse method broken rock, break
The active force of crushed rocks is the TRANSIENT HIGH TEMPERATURE and stress wave that high electric field pulse is generated in rock interior；And use liquid method for electrically broken rock
When, the liquid stress wave that liquid electricity broken rock generates only plays the role of precrushing to rock.Later, described in mechanical rotation movement cooperation
Electrode drill bit 12 constantly exposes new rock, sufficiently increases contact of the electrode drill bit with rock, it is also ensured that broken landwaste
It migrates out as early as possible shaft bottom.Gauge and regular tooth on mechanical rotation movement cooperation drilling tool can guarantee hole diameter size, and the regular borehole wall is protected
Demonstrate,prove wall quality.
In drilling straight-hole, using mechanical rotary drilling motion correction drilling direction, prevent wellbore crooked；When boring directional well,
Mechanical rotary drilling campaign cooperation steering tool controls well track direction.Ground power supply is placed on ground, power amplification and electric arteries and veins
It rushes generator and is placed in underground, be packaged in bottomhole assembly with electrode drill bit.Power amplification and electric pulse generator connect
The bottomhole assembly that continuous pipe connector, mud motor and electrode drill bit 12 form can be with measurement while drilling and steering tool knot
It closes, realizes the drilling to directional well (including horizontal well) and the real-time measurement record to direction of deflection.Continuous pipe connector
For connecting the drill string and the irrotational continuous tubing string of band cable in top of lower part rotation, electric power and drilling liquid pressure can be transmitted simultaneously.
Compared with existing drilling technology, the invention has the characteristics that and advantage:
1) high electric field pulse drilling mode is combined with continuous pipe drilling mode, and operating condition is suitable, and cable decentralization is convenient；
2) traditional rotary drilling broken rock is combined with high electric field pulse well drilling and rock crushing, and technology hand down is good, and drilling efficiency improves 2-3
Times；
3) electrode drilling tool is combined with mud motor, is suitable for boring various types of wells (straight well, directional well etc.), more accords with
Close the trend of oil drilling development；
4) high electric field pulse generating device is placed in underground, is packaged in bottomhole assembly with drill bit, improve energy
Transfer efficiency, reduce it is unnecessary along journey electric power energy loss；
5) either water flooding, or the drilling fluid for balancing bottom pressure, cutting carring is high electric field pulse drilling well skill
Art provides good fluid conditions.
Detailed description of the invention
Fig. 1 is the compound rock-breaking and well-drilling method drilling straight-hole schematic diagram of electric plasma pulse stress wave-machinery；
Fig. 2 is that the compound rock-breaking and well-drilling method of electric plasma pulse stress wave-machinery bores directional well schematic diagram；
Fig. 3 is the power transmission and impedance schematic diagram of the compound rock-breaking and well-drilling system of electric plasma pulse stress wave-machinery；
Fig. 4 is high voltage pulse electrode bit operation schematic diagram；
Fig. 5 is electric pulse broken rock and liquid electricity broken rock schematic illustration；
In Fig. 1 ~ Fig. 2: 1. ground power supplies and control equipment；2. continuous-tube roller；3. deionization pump and its mud cleaning system；4.
Cable；5. hydraulic line；6. continuous tube injection head；7. derrick；8. tape cable is continuously managed；9. power amplification and electric pulse occur
Device；10. continuous pipe connector；11. mud motor；12. electrode drill bit.
In Fig. 3: 1-A. ground power supply and control equipment；8-2. transmission cable equivalent resistance R1；9-A. power amplifier；9-
B. electric pulse generator storage capacitor C；9-C. electric pulse generator converter；9-D. electric pulse generator internal driving R2；12-
A. electrode drill bit coaxial cable；12-B. punctures stratum equivalent impedance R3(electric pulse broken rock) or fluid impedance (liquid electricity broken rock).
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.But
It is that the present invention can also be implemented using other than the one described here mode.Therefore, protection scope of the present invention not by
The limitation of following public specific embodiment.
Continuous pipe high electric field pulse-compound rock-breaking and well-drilling side of machinery of some embodiments of the invention is described with reference to the accompanying drawing
Method.
A kind of continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery provided by the invention, as depicted in figs. 1 and 2,
Wherein Fig. 1 is the schematic diagram of the well drilling and rock crushing method drilling straight-hole；Fig. 2 is the signal that the well drilling and rock crushing method bores directional well
Figure；The well system includes: ground power supply and control equipment 1, continuous-tube roller 2, deionization pump and its mud cleaning system
3, the continuous pipe 8 of cable 4, hydraulic line 5, continuous tube injection head 6, derrick 7, tape cable, power amplification and electric pulse generator 9,
Continuous pipe connector 10, mud motor 11 and electrode drill bit 12；The ground power supply and control equipment 1 effect be whole
A electric pulse drilling machine provides power supply and the coordination electrode down-hole high pressure pulse frequency, and pulse frequency can be 5-30HZ；The deionization
Pump and its mud cleaning system 3 are to provide deionization drilling fluid and circulating fluid carries out landwaste in drilling process；The function
Rate amplification and the effect of electric pulse generator 9 are to generate the instantaneous breakdown high voltage for being used for fractured rock, and operating voltage can be 10-
50KV；The effect of the continuous pipe connector 10 is the bottomhole assembly and the irrotational tape cable in top of connection rotation
Continuous pipe 8, while transmitting electric power and drilling liquid pressure；The mud motor 11 generates rotary motion using drilling liquid pressure
And the drill assembly of lower part and the electrode drill bit 12 is driven to rotate；The electrode drill bit 12 is used for fractured rock, so that wellbore
Gradually extend to earth formation deep.
In entire electric plasma pulse stress wave-machinery combined drilling rock breaking method, the ground power supply and control
Equipment 1 is placed on ground, and the power amplification and electric pulse generator 9 are placed in underground, is packaged in the electrode drill bit 12
In bottomhole assembly；Power transmission and the impedance schematic diagram of whole system are as shown in figure 3, this improves the conversions of energy
Efficiency, reduce it is unnecessary along journey electric power energy loss.The power amplification and electric pulse generator 9, the continuous Guan Lian
The bottomhole assembly of connector 10, the mud motor 11 and the electrode drill bit 12 composition can be with measurement while drilling and guiding
Tool combines, and the drilling to directional well (including horizontal well) and the real-time measurement record to direction of deflection is realized, such as Fig. 2 institute
Show.The drill string and the irrotational continuous tubing string of band cable in top for being used to connect lower part rotation of the continuous pipe connector 10, can be same
When transmitting electric power and drilling liquid pressure.
The high-voltage electrode drill bit 12(include electrode section and bore toothed portion) working principle as shown in figure 4, it is adopted
It is combined with electric pulse broken rock with the method for mechanical compound broken rock.Firstly, low voltage earthing electrode and high voltage central electrode point
It is not contacted with bottom rock, as shown in Figure 4 (a).Then, electric current is through the ground power supply 1, the cable 4, the electrification
The continuous pipe 8 of cable passes to the power amplification and electric pulse generator 9, the wink that the power amplification and electric pulse generator 9 generate
When high voltage reach low voltage earthing electrode and high voltage central electrode both ends by the continuous pipe fitting 10.High pressure-burst pulse
Under discharge voltage (voltage rising time < 300ns), the disruptive field intensity of rock is less than deionization drilling fluid, and (conductivity is less than
300us/cm), discharge plasma channel is formed in rock interior, as shown in Figure 4 (b).After plasma channel is formed, high-voltage electricity
Energy in the pulse power is discharged into plasma channel, and to channel heating (up to 104K)；Plasma channel is heated
Expansion generates Shock stress Wave (up to 109~1010Pa it) and to surrounding rock does work, so that rock interior generates " internal injury "；When
When Shock stress Wave is more than the self-strength of rock to the effect of rock, rock is just destroyed, as shown in Figure 4 (c).Meanwhile it is broken
Rock after bad rotates synkinesia by the mechanical of drilling tool, under the pressure effect of drilling fluid, upper discharge shaft bottom, so that new shape
At bottom rock face come into full contact with low voltage earthing electrode and high voltage central electrode, complete a new round broken rock work.
The high-voltage electrode drill bit 12(includes electrode section and brill toothed portion) liquid electricity rock breaking method and machine also can be used
The method of the compound broken rock of tool, which combines, completes well drilling and rock crushing movement.When electric discharge of high and low pressure electrode on electrode drill bit 12 etc. from
Daughter is generated in liquid medium, can generate the pressure wave of electric discharge in liquid medium；Liquid medium can generate bubble, gas simultaneously
Crumbling and fall for bubble can generate the pressure wave of another part.This two-part mechanical pressure ripple acts on rock, when this some mechanical
When pressure wave is more than the self-strength of rock, partial destruction just occurs for rock.Then, in the rotation of the brill toothed portion of electrode drill bit 12
Turn under shear action, rock is crushed.Landwaste follows in bad effect eventually by cleaner for high-pressure drilling fluid and shaft bottom is discharged.Electric pulse broken rock
It is as shown in Figure 5 that schematic diagram is distinguished with liquid electricity broken rock principle.
It is worth noting that: when using electric pulse rock breaking method and mechanical means compound tense, have to the conductivity of drilling fluid
Certain requirement.Therefore, it must have the drilling fluid deionization pump 3 on ground to guarantee the conductivity of drilling fluid lower than certain
One threshold value (is less than 300us/cm)；And when using liquid electricity rock breaking method and mechanical means compound tense, the drilling fluid deionization
Pump 3 is not required.
For the power of well drilling and rock crushing, when using electric pulse rock breaking method and the compound broken rock of mechanical means, fractured rock
Active force be TRANSIENT HIGH TEMPERATURE and stress wave that high electric field pulse is generated in rock interior；And use liquid electricity rock breaking method and machinery
When the compound broken rock of method, the liquid stress wave that liquid electricity broken rock generates only plays the role of precrushing to rock.Mechanical rotation movement
Cooperate the electrode drill bit 12 constantly to expose new rock, sufficiently increases contact of the electrode drill bit with rock, it is also ensured that broken
Broken landwaste is migrated out shaft bottom as early as possible.Gauge and regular tooth on mechanical rotation movement cooperation drilling tool can guarantee hole diameter size, advise
The whole borehole wall guarantees wall quality, reinforces to the borehole wall.In drilling straight-hole, rotary motion can effectively correct drilling direction, prevent
Only wellbore skew；When boring directional well, mechanical rotary drilling cooperation steering tool can more effectively control well track direction.
Claims (6)
1. a kind of continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery, which is characterized in that the high electric field pulse-machine
The well system of the compound rock-breaking and well-drilling method of tool include: ground power supply and control equipment 1, continuous-tube roller 2, deionization pump and its
The continuous pipe 8 of mud cleaning system 3, cable 4, hydraulic line 5, continuous tube injection head 6, derrick 7, tape cable, power amplification and electricity
Impulse generator 9, continuous pipe connector 10, mud motor 11 and electrode drill bit 12；The ground power supply and control equipment 1
Effect be that power supply and the coordination electrode down-hole high pressure pulse frequency are provided for entire electric pulse drilling machine, pulse frequency can be 5-
30HZ；Deionization pump and its mud cleaning system 3 are to provide deionization drilling fluid in drilling process and circulating fluid is taken
Take landwaste out of；The power amplification and the effect of electric pulse generator 9 are to generate the instantaneous breakdown high voltage for being used for fractured rock,
Operating voltage can be 10-50KV；The effect of the continuous pipe connector 10 is that the bottomhole assembly that connection rotates and top are non-
The continuous pipe 8 of the tape cable of rotation, while transmitting electric power and drilling liquid pressure；The mud motor 11 utilizes drilling fluid
Pressure generates rotary motion and the drill assembly of lower part and the electrode drill bit 12 is driven to rotate；The electrode drill bit 12 is for breaking
Crushed rocks, so that wellbore gradually extends to earth formation deep；The electrode drill bit 12 includes the high and low pressure arteries and veins for electric broken rock above
Rush electrode and the brill tooth (common tooth and gauge and regular tooth) for mechanical drilling and the protection borehole wall；The method inherits
Most of technique of traditional continuous pipe drilling well: as realized using mud motor, the rotation broken rock of drill bit is acted, and utilizes drilling well
Liquid circulation realizes the functions such as the upper row of equilibrium strata pressure, landwaste；Tooth by designing drill bit controls bit pressure while arrangement
Revolving speed realizes orientation well operations.
2. the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery according to claim 1, using impulse method
When broken rock, TRANSIENT HIGH TEMPERATURE and stress wave that the active force of fractured rock, which is high electric field pulse, to be generated in rock interior；And use liquid
When method for electrically broken rock, liquid electricity broken rock produces the raw liquid stress wave of ` and only plays the role of precrushing to rock.Later, mechanical rotation
Movement cooperates the electrode drill bit 12 constantly to expose new rock, sufficiently increases contact of the electrode drill bit with rock, can also protect
The broken landwaste of card is migrated out shaft bottom as early as possible.Gauge and regular tooth on mechanical rotation movement cooperation drilling tool can guarantee that hole diameter is big
Small, the regular borehole wall guarantees wall quality.
3. the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery according to claim 1, in drilling straight-hole, benefit
With mechanical rotary drilling motion correction drilling direction, prevent wellbore crooked；When boring directional well, mechanical rotary drilling campaign cooperation is led
Well track direction is controlled to tool.
4. continuous pipe high electric field pulse-compound rock breaking method of machinery according to claim 1, which is characterized in that describedly
Face power supply and control equipment 1 are placed on ground, and the power amplification and electric pulse generator 9 are placed in underground, with the electrode drill bit
12 are packaged in bottomhole assembly together.
5. the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery according to claim 1, which is characterized in that institute
State power amplification and electric pulse generator 9, the continuous pipe connector 10, the mud motor 11 and the electrode drill bit
The bottomhole assembly of 12 compositions can realize the drilling to directional well (including horizontal well) with measurement while drilling in conjunction with steering tool
And the real-time measurement of direction of deflection is recorded.
6. the continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery according to claim 1, which is characterized in that institute
The drill string and the irrotational continuous tubing string of band cable in top for being used to connect lower part rotation for stating continuous pipe connector 10, can transmit simultaneously
Electric power and drilling liquid pressure.
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| CN201810711656.2A CN109577859B (en) | 2018-07-03 | 2018-07-03 | Continuous tube high-voltage electric pulse-mechanical composite rock breaking drilling method |
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| CN201810711656.2A CN109577859B (en) | 2018-07-03 | 2018-07-03 | Continuous tube high-voltage electric pulse-mechanical composite rock breaking drilling method |
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| CN111734386A (en) * | 2020-06-24 | 2020-10-02 | 中国石油大学(华东) | Multi-path high-low pressure composite plasma drilling control system |
| CN112523687A (en) * | 2020-12-21 | 2021-03-19 | 西南石油大学 | Laser-mechanical drilling system |
| CN112593849A (en) * | 2020-12-16 | 2021-04-02 | 西南石油大学 | Electric pulse-mechanical composite rock breaking drill bit for deep difficult-to-drill stratum |
| CN112855015A (en) * | 2021-01-27 | 2021-05-28 | 张庆豫 | High-voltage electric pulse assisted rock breaking and drilling system and method |
| CN113216853A (en) * | 2020-01-21 | 2021-08-06 | 新奥科技发展有限公司 | Composite drill bit and rock drilling device |
| CN113738270A (en) * | 2021-07-28 | 2021-12-03 | 中国矿业大学 | Directional drilling device and method for pre-weakened coal rock induced mechanical drilling |
| CN113899537A (en) * | 2021-09-09 | 2022-01-07 | 西南石油大学 | Rock breaking drilling experimental device and method for electric pulse-mechanical composite drill bit |
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| CN112523687A (en) * | 2020-12-21 | 2021-03-19 | 西南石油大学 | Laser-mechanical drilling system |
| CN112855015A (en) * | 2021-01-27 | 2021-05-28 | 张庆豫 | High-voltage electric pulse assisted rock breaking and drilling system and method |
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| CN113899537B (en) * | 2021-09-09 | 2024-03-08 | 西南石油大学 | Rock breaking drilling experimental device and method for electric pulse-mechanical composite drill bit |
| CN114217662A (en) * | 2021-11-23 | 2022-03-22 | 华中科技大学 | Method and system for determining matched voltage wave head of high-voltage pulse rock breaking technology |
| CN114592815A (en) * | 2022-03-31 | 2022-06-07 | 陕西太合智能钻探有限公司 | Core sampling device for directional branch drilling |
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