CN106703685B - A kind of high-voltage pulse power hammer drilling tool - Google Patents
A kind of high-voltage pulse power hammer drilling tool Download PDFInfo
- Publication number
- CN106703685B CN106703685B CN201710163772.0A CN201710163772A CN106703685B CN 106703685 B CN106703685 B CN 106703685B CN 201710163772 A CN201710163772 A CN 201710163772A CN 106703685 B CN106703685 B CN 106703685B
- Authority
- CN
- China
- Prior art keywords
- spacer ring
- end cover
- voltage pulse
- insulation spacer
- shell
- 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.)
- Active
Links
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
Abstract
The invention discloses a kind of high-voltage pulse power hammer drilling tools, it includes shaft bottom high-voltage pulse power plant and pulsed power hammer；Low pressure recycle drilling fluid enters shaft bottom high-voltage pulse power plant by drilling rod, plasma is generated under the action of high intensity pulses voltage, since plasma has high density storage can be with the property of highly expanded effect, so that discharge channel expands rapidly outward, underwater shock wave is formed in aqueous medium and enters power hammer, and power hammer moves back and forth fractured rock under the effect of the pressure.The present invention can reduce drilling cost, reduce the energy transfer losses for acting on detritus, reduce energy consumption, be suitable for Various Complex hard formation, improve drilling efficiency.
Description
Technical field
The present invention relates to the drilling tools such as geology and oil-gas exploration and development field, especially a kind of high-voltage pulse power hammer drill
Tool.
Background technology
In recent years, hydraulical impact rotary drilling technology was in the side such as the hole depth of drilling well, aperture, drilling efficiency and bit life
Face obtains good progress, is widely used in different stratum and different geological prospectings and engineering exploration, significant effect,
But there is also some defects.Due to the power that high pressure liquid stream is power hammer, block stamp is pushed to move back and forth, therefore with brill
Into the intensification on stratum, the requirement to pump pressure also gradually increases.Pump pressure will not only overcome impactor and on-way resistance, also need to meet dynamic
The job requirement of power hammer, only reaches certain pump pressure, power hammer could start to work.
Water mesohigh pulsed discharge refers to that the high voltage being filled in capacitor is formed plasma by pulsed discharge in water
Body through channel, discharge channel expand outward under the action of internal high temperature and pressure, form powerful shock wave, realize electric energy
To the conversion of mechanical energy, also referred to as electrohydraulic effect.In recent years, high voltage pulse discharge plasma technology was gradually applied to rock and was broken
It is broken, there is certain achievement, but there are also defects.
Invention content
The object of the present invention is to provide a kind of high-voltage pulse power hammer drilling tools.
The present invention includes shaft bottom high-voltage pulse power plant and power hammer；
The shaft bottom high-voltage pulse power plant includes shell, upper end cover, high-voltage pulse generation cavity, bottom end cover and hollow
Chamber；Housing main body is cylinder, and top connection and lower contact is arranged in shell top and bottom, and top connection and lower contact are respectively provided with interior
Screw thread and external screw thread, shell upper end both sides are equipped with positive terminal and negative terminal, high pressure positive electrode cable and negative electrode electricity
Cable is picked out from binding post to ground high-voltage pulse power source respectively, and step is arranged in shell lower end, for disposing superstructure；Described
Upper end cover is the Circular plate structure with boss, and equipped with centre bore and and annular through-hole, drill-in fluid is by annular through-hole from drilling rod
Into high-voltage pulse generation cavity, check valve is installed on boss top；The check valve is by check valve body, sealing ring and groups of springs
At check valve body moves down under the action of creeping into hydraulic coupling and opens entrance, and drill-in fluid is made to flow into；The bottom end cover is
Tabular, the centre bore installed with high pressure positive electrode and upper end cover is equipped at bottom end cover center, is cricoid logical around centre bore
Hole is fixed on as the drill-in fluid fluid outlet passage of high pressure on the step of shell；
The high-voltage pulse generation cavity includes the first insulation spacer ring, the second insulation spacer ring, third insulation spacer ring, high positive pressure
Electrode, negative electrode, insulating spacer, first insulation spacer ring, second insulation spacer ring, third insulation spacer ring cyclic structure be equipped with groove
With centre bore, the extremely hollow metal tube of high pressure positive electricity, insulating spacer is the cylindrical structure with centre bore, and negative electricity is extremely thin
Wall barrel structure；Lower end cap top surface from the bottom up successively dispose central shaft, second insulation spacer ring, insulating spacer, high pressure positive electrode,
Negative electrode, third insulation spacer ring and the first insulation spacer ring, high pressure positive electrode are insulated spacer ring by the second insulation spacer ring and third
Groove is fixed, and negative electrode is fixed by insulating spacer and third insulation spacer ring, and third insulation spacer ring and insulating spacer pass through upper end
Lid, bottom end cover and center shaft compression, there are pole clearances between high pressure positive electrode and negative electrode, generate high pressure plasma；Institute
The hollow cavity stated is the bottom end cover lower surface of shell to the drill-in fluid flowing space reserved between the lower contact of shell；Described is outer
Shell, upper end cover and bottom end cover are stainless steel material；The described first insulation spacer ring, the second insulation spacer ring, third insulation spacer ring, absolutely
Edge spacer is glass filled nylon material；The central shaft is nylon material, and there is screw thread to be used in combination for central shaft top and bottom
Bolt fixes itself and upper end cover and bottom end cover；The high pressure positive electrode and negative electricity extremely stainless steel material.
The power hammer includes shell, anvil, piston block stamp spring, and power hammer uses shaft bottom high-voltage pulse power plant
The high-voltage pulse hydraulic shock wave of generation constantly applies shock loading as operation power to rock.
The present invention is connect in creeping into engineering, by drilling rod with earth drilling equipment, passes through high-field electrode cable and negative electricity
High intensity pulses voltage-drop loading to shaft bottom high-voltage pulse power plant, is connected in underground with power hammer and drill bit by cable, will be electric
Cable is connected with the ground pulse power and accumulator.
The present invention has the following advantages：
(1) when the high-voltage pulse power hammer drilling tool is used for drilling well, pass through the plasma of high-voltage breakdown effect generation
Has the characteristics that high temperature and pressure, at the same time plasma channel is extended to the outside compresses to form compression shock to the drill-in fluid of surrounding
Wave is passed directly into power hammer, to high pressure liquid stream needs when meeting power hammer work, while the frequency of impact and ballistic work of power hammer
Also can increase with the increase of pump pressure.
(2) pulse discharge electrode uses coaxial configuration, efficiently avoids the unstable of electric discharge spacing.
(3) when creeping into deeper stratum, the requirement to slush pump is reduced, entrance is passed through drilling hydraulic coupling and reduces, and reduces pressure
The linear loss of power improves drilling efficiency, reduces drilling cost.
(4) it is suitable for a plurality of types of power hammers, meets the requirement on drilling stratum.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is shaft bottom high-voltage pulse powerplant configuration schematic diagram.
Fig. 3 is the upper end cover structural schematic diagram of shaft bottom high-pressure pulse device.
Fig. 4 is the insulation spacing ring structure of leather schematic diagram of shaft bottom high-pressure pulse device.
Fig. 5 is the insulation spacing ring structure of leather schematic diagram of shaft bottom high-pressure pulse device.
Fig. 6 is the insulating spacer structural schematic diagram of shaft bottom high-pressure pulse device.
Fig. 7 is the bottom end cover structural schematic diagram of shaft bottom high-pressure pulse device.
Fig. 8 is operating diagram of the present invention.
In figure：1- drilling rods, the shaft bottoms 2- high-voltage pulse power plant, 3- sealing rings, 4- springs, 5- negative terminals, 6-
One bolt, the second bolts of 26-, 7- central shafts, 8- upper end covers, the insulation of 9- first spacer ring, the insulation spacer rings of 12- second, 21- thirds are exhausted
Edge spacer ring, 11- negative electrode cables, 13- through-holes, 14- hollow cavities, 15- lower contacts, 16- top connections, 17- positive terminals, 18-
High pressure positive electrode cable, 19- upper end cover through-holes, 20- upper end cover centre bores, 22- high pressure positive electrodes, 23- negative electrodes, 24- insulation
Spacer, 25- bottom end covers, 27- bottom end cover centre bores, 28- shells, 29- power hammers, 30- drill bits, 31- drill-in fluid flow channels,
32- creeps into stratum, 33- check valve bodies.
Specific implementation mode
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the present invention includes 2 He of shaft bottom high-voltage pulse power plant
Power hammer 29；
The shaft bottom high-voltage pulse power plant 2 includes shell 28, upper end cover 8, high-voltage pulse generation cavity, bottom end cover 25
With hollow cavity 14；28 main body of shell is cylinder, and top connection 16 and lower contact 15, top connection 16 is arranged in 28 top and bottom of shell
It is respectively provided with internal thread and external screw thread with lower contact 15,28 upper end both sides of shell are equipped with positive terminal 17 and negative terminal 5,
High pressure positive electrode cable 18 and negative electrode cable 11 are picked out from binding post to ground high-voltage pulse power source respectively, and 28 lower end of shell is set
Step is set, for disposing superstructure；The upper end cover 8 be the Circular plate structure with boss, and equipped with centre bore 20 and and
Annular through-hole 19, drill-in fluid enter high-voltage pulse generation cavity by annular through-hole 19 from drilling rod, and check valve is installed on boss top；Institute
The check valve stated is made of check valve body 33, sealing ring 3 and spring 4, and check valve body 33 is downward under the action of creeping into hydraulic coupling
Entrance is opened in movement, and drill-in fluid is made to flow into；The bottom end cover 25 is tabular, is equipped with and high positive pressure at 25 center of bottom end cover
The centre bore 27 that electrode 22 and upper end cover 8 are installed is cricoid through-hole 13 around centre bore 27, the drill-in fluid fluid as high pressure
Flow pass is fixed on the step of shell 28；
The high-voltage pulse generation cavity include first insulation spacer ring 9, second insulate spacer ring 12, third insulation spacer ring 21,
High pressure positive electrode 22, negative electrode 23, insulating spacer 24, the first insulation insulation of spacer ring 9, second spacer ring 12, third insulation spacer ring 21
Cyclic structure be equipped with groove and centre bore, high pressure positive electrode 22 be hollow metal tube, insulating spacer 24 be with centre bore
Cylindrical structure, negative electrode 23 be thin-walled barrel structure；25 top surface of bottom end cover disposes central shaft 7, second successively from the bottom up
Insulate spacer ring 12, insulating spacer 24, high pressure positive electrode 22, negative electrode 23, the third insulation insulation spacer ring 9 of spacer ring 21 and first, high
Positive pressure electrode 22 is fixed by the groove of the second insulation spacer ring 12 and third insulation spacer ring 21, and negative electrode 23 passes through insulating spacer 24
It is fixed with third insulation spacer ring 21, third insulation spacer ring 21 and insulating spacer 24 pass through upper end cover 8, bottom end cover 25 and central shaft 7
It compresses, there are pole clearances 10 between high pressure positive electrode 22 and negative electrode 23, generate high pressure plasma；The hollow cavity 14
For shell 28 25 lower surface of bottom end cover between the lower contact 15 of shell 28 reserve the drill-in fluid flowing space；The shell
28, upper end cover 8 and bottom end cover 25 are stainless steel material；The first insulation spacer ring 9, second insulate spacer ring 12, third insulate
Spacer ring 21, insulating spacer 24 are glass filled nylon material；The central shaft 7 is nylon material, 7 top and bottom of central shaft
Itself and upper end cover 8 and bottom end cover 25 are fixed with screw thread blending bolt；The high pressure positive electrode 22 is not with negative electrode 23
Become rusty Steel material.
The power hammer 29 includes shell, anvil, piston block stamp spring, and power hammer 29 uses shaft bottom high-voltage pulse power
The high-voltage pulse hydraulic shock wave that device generates constantly applies shock loading as operation power to rock.
The course of work of the present invention is as follows：
As shown in figure 8, in creeping into engineering, high-voltage pulse power hammer drilling tool is connected with drill bit 30, passes through high positive pressure
Device is connected by pole cable 18 and cathode cable 11 with the ground pulse power and other equipment.The height that the ground pulse power generates
Intensity voltage is loaded into high pressure positive electrode 22 and negative electrode 23 by high pressure positive electrode cable 18.Drill-in fluid passes through mud from earth's surface
Pump is passed through shaft bottom high-voltage pulse power plant 2 via drilling rod 1, first check valve body 33 under the action of creeping into hydraulic coupling to moving down
Dynamic, device portal is opened, and drill-in fluid enters interpolar by the insulation insulation spacer ring 21 of spacer ring 9 and second of upper end cover through-hole 19, first
Gap 10 generates high pressure plasma under the action of high voltage between discharge electrode so that discharge loop is connected, capacitor
The quick release of energy storage causes pressure, temperature in pole clearance 10 drastically to increase, since plasma is stored with high density
It can be with the property of highly expanded effect so that discharge channel expands rapidly outward, and underwater shock wave is formed in aqueous medium, into sky
In the chambers of the heart 14, and entered in power hammer 29 by bottom end cover through-hole 13, after high-pressure drilling liquid enters power hammer 29, is acted on first
In the lower part of the block stamp of power hammer 29 so that block stamp overcomes the compressing force of its own gravity and spring to move upwards, while spring stores up
Energy is deposited, the fluid outlet of anvil is opened, and when block stamp rises to vertex, the pressure reduction of operating room, block stamp is in itself weight
It is moved downward under the action of power and spring-compressed energy, impacts anvil, and be transmitted on drill bit 30, realization is crushed rock；
While generating percussion, block stamp closes the fluid outlet of anvil, and chamber pressure increases, and block stamp carries out past return to work again
Make, drill-in fluid returns to earth's surface from drilling stratum 32 and the drill-in fluid flow channel 31 of drilling rod 1.
In the construction process, different power hammers can be used with the specific requirement of drilling process, meets the needs of operating mode.
Claims (2)
1. a kind of high-voltage pulse power hammer drilling tool, it is characterised in that：Including shaft bottom high-voltage pulse power plant (2) and power hammer
(29)；
The shaft bottom high-voltage pulse power plant (2) includes shell (28), upper end cover (8), high-voltage pulse generation cavity, bottom end cover
(25) and hollow cavity (14)；Shell (28) main body be cylinder, shell (28) top and bottom setting top connection (16) and under connect
Head (15), top connection (16) and lower contact (15) are respectively provided with internal thread and external screw thread, and shell (28) upper end both sides are equipped with anode
Binding post (17) and negative terminal (5), high pressure positive electrode cable (18) and negative electrode cable (11) are picked out from binding post respectively
To ground high-voltage pulse power source, step is arranged in shell (28) lower end, for disposing superstructure；The upper end cover (8) is tool
There is a Circular plate structure of boss, and be equipped with centre bore (20) and annular through-hole (19), drill-in fluid is by annular through-hole (19) from drilling rod
Into high-voltage pulse generation cavity, check valve is installed on boss top；The check valve by check valve body (33), sealing ring (3) and
Spring (4) forms, and check valve body (33) moves down under the action of creeping into hydraulic coupling and opens entrance, and drill-in fluid is made to flow into；
The bottom end cover (25) is tabular, is equipped at bottom end cover (25) center and is installed with high pressure positive electrode (22) and upper end cover (8)
Centre bore (27), be cricoid through-hole (13) around centre bore (27), it is fixed as the drill-in fluid fluid outlet passage of high pressure
In on the step of shell (28)；
The high-voltage pulse generation cavity includes the first insulation spacer ring (9), the second insulation spacer ring (12), third insulation spacer ring
(21), high pressure positive electrode (22), negative electrode (23), insulating spacer (24), first insulation spacer ring (9), second insulation spacer ring (12),
The cyclic structure of third insulation spacer ring (21) is equipped with groove and centre bore, and high pressure positive electrode (22) is hollow metal tube, insulation
Spacer (24) is the cylindrical structure with centre bore, and negative electrode (23) is thin-walled barrel structure；Bottom end cover (25) top surface is under
Central shaft (7), the second insulation spacer ring (12), insulating spacer (24), high pressure positive electrode (22), negative electrode are up disposed successively
(23), third insulation spacer ring (21) and first insulation spacer ring (9), high pressure positive electrode (22) by second insulate spacer ring (12) and
The groove of third insulation spacer ring (21) is fixed, and negative electrode (23) is fixed by insulating spacer (24) and third insulation spacer ring (21),
Third insulation spacer ring (21) and insulating spacer (24) pass through upper end cover (8), bottom end cover (25) and central shaft (7) and compress, high positive pressure
There are pole clearance (10) between electrode (22) and negative electrode (23), generate high pressure plasma；The hollow cavity (14) is
Bottom end cover (25) lower surface of shell (28) between the lower contact (15) of shell (28) reserve the drill-in fluid flowing space；Center
Axis (7) top and bottom have screw thread blending bolt that it is fixed with upper end cover (8) and bottom end cover (25).
2. a kind of high-voltage pulse power hammer drilling tool according to claim 1, it is characterised in that：The shell (28), on
End cap (8) and bottom end cover (25) are stainless steel material；The described first insulation spacer ring (9), the second insulation spacer ring (12), third are exhausted
Edge spacer ring (21) and insulating spacer (24) are glass filled nylon material；The central shaft (7) is nylon material；The height
Positive pressure electrode (22) is stainless steel material with negative electrode (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710163772.0A CN106703685B (en) | 2017-03-17 | 2017-03-17 | A kind of high-voltage pulse power hammer drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710163772.0A CN106703685B (en) | 2017-03-17 | 2017-03-17 | A kind of high-voltage pulse power hammer drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703685A CN106703685A (en) | 2017-05-24 |
| CN106703685B true CN106703685B (en) | 2018-08-03 |
Family
ID=58886931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710163772.0A Active CN106703685B (en) | 2017-03-17 | 2017-03-17 | A kind of high-voltage pulse power hammer drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703685B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018200747A (en) * | 2017-05-25 | 2018-12-20 | 株式会社融合技術開発センター | Pulsed power generator |
| CN109441360B (en) * | 2018-10-09 | 2019-12-31 | 中国石油大学(北京) | Liquid phase discharge plasma shock wave PDC drill bit |
| CN109594916B (en) * | 2019-02-02 | 2023-03-17 | 吉林大学 | Super-combustion type double-acting hole bottom impact rock crushing drilling tool and hole bottom impact rock crushing method |
| CN110552616A (en) * | 2019-09-24 | 2019-12-10 | 中国石油大学(北京) | Liquid phase discharge shock wave drilling device |
| CN111101868B (en) * | 2019-11-14 | 2021-04-06 | 中国石油大学(北京) | Jet flow PDC drill bit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001040622A1 (en) * | 1999-11-29 | 2001-06-07 | Shell Internationale Research Maatschappij B.V. | Downhole pulser |
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN204920776U (en) * | 2015-08-05 | 2015-12-30 | 四川川石金刚石钻头有限公司 | Drill bit hydraulic pulse impacter |
| CN206545484U (en) * | 2017-03-17 | 2017-10-10 | 吉林大学 | A kind of high-voltage pulse power hammer drilling tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9453410B2 (en) * | 2013-06-21 | 2016-09-27 | Evolution Engineering Inc. | Mud hammer |
-
2017
- 2017-03-17 CN CN201710163772.0A patent/CN106703685B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001040622A1 (en) * | 1999-11-29 | 2001-06-07 | Shell Internationale Research Maatschappij B.V. | Downhole pulser |
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN204920776U (en) * | 2015-08-05 | 2015-12-30 | 四川川石金刚石钻头有限公司 | Drill bit hydraulic pulse impacter |
| CN206545484U (en) * | 2017-03-17 | 2017-10-10 | 吉林大学 | A kind of high-voltage pulse power hammer drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106703685A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106703685B (en) | A kind of high-voltage pulse power hammer drilling tool | |
| CN206545484U (en) | A kind of high-voltage pulse power hammer drilling tool | |
| RU2683438C1 (en) | Method of increasing gas permeability for methane wells in coal seams with the using of blowout technology by explosion under the influence of electric impulses | |
| US5106164A (en) | Plasma blasting method | |
| CN108397182A (en) | Electric pulse cooperates with the device and method in the anti-reflection coal seam of frozen-thawed | |
| CN108222839A (en) | Multi-electrode electric crushing drill bit and electric crushing experimental device | |
| CN108343378B (en) | A kind of coal seam rapid drilling method of the mechanical drilling of electric pulse auxiliary | |
| CN211777300U (en) | Underground high-power liquid electric pulse generator | |
| CN105952426A (en) | Oil well plug removal and output increase device based on hydro-electric pulse shock waves | |
| CN108590507A (en) | It is a kind of to have hammer stem back and forth from the broken rock of impact structure speed-raising tool | |
| CN111042732B (en) | High-voltage electric pulse drilling device and using method thereof | |
| CN109944576B (en) | Electric pulse enhanced pulsating hydraulic fracturing device and application method thereof | |
| CN106522844B (en) | Cross drill hammer structure, the Spiral digging machine drill bit containing the structure and its application | |
| CN108533172B (en) | A kind of well system and method | |
| US4190202A (en) | High pressure pulsed water jet | |
| CN110670902A (en) | Electric pulse impact rod and electric pulse shock wave cracking structure | |
| CN208168859U (en) | The device in the electric pulse collaboration anti-reflection coal seam of frozen-thawed | |
| CN208089227U (en) | Multi-electrode electric crushing drill bit and electric crushing experimental device | |
| CA2015102C (en) | Plasma blasting method | |
| RU2283951C1 (en) | Electrohydraulic impulse device (variants) | |
| CN113756803A (en) | Rock breaking method based on impact-resistant water-filled bag | |
| CN114016896A (en) | Reverse circulation impactor and system | |
| CN113008090A (en) | Application of high-pressure electromagnetic force blasting device in shale gas shale oil well development | |
| CN109723376B (en) | Compression ignition type positive power hammer drilling tool and rock breaking method | |
| CN107313735B (en) | A kind of bumper jar for continuous pipe unfreezing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |