CN104594801B - Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance - Google Patents
Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance Download PDFInfo
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- CN104594801B CN104594801B CN201410824286.5A CN201410824286A CN104594801B CN 104594801 B CN104594801 B CN 104594801B CN 201410824286 A CN201410824286 A CN 201410824286A CN 104594801 B CN104594801 B CN 104594801B
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- 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
- E21B7/00—Special methods or apparatus for drilling
Abstract
The present invention relates to a kind of disturbance and break rock drilling tool, including anti-lost assembly, motor assembly, universal drive shaft assembly, driving-shaft assembly and disturbance assembly, anti-lost assembly connects motor assembly, motor assembly connects universal drive shaft assembly, universal drive shaft assembly connects driving-shaft assembly, driving-shaft assembly connects disturbance assembly, and disturbance assembly lower end connects drill bit；Driving-shaft assembly includes mandrel, lower TC urceolus, gear, lower gear and transmission lever；The lower end of the hollow drive shaft of disturbance assembly is provided with eccentric orfice, and carries out face with the standing valve being arranged on disturbance axle and contact.The present invention also provides for a kind of disturbance rock-breaking and well-drilling method.Rock drilling tool is broken in disturbance and disturbance rock-breaking and well-drilling method is existing screw drive shaft housing and mandrel relative motion to be converted to gear rotate, finally realize disturbance assembly and produce periodically Water Hammer, and it is collectively forming the pressure of the drill with the gravity of top BHA, realizing " heavily stressed+disturbance ", it has the advantages such as high efficiency of breaking rock and high rate of penetration.
Description
Technical field
The present invention relates to drilling engineering field in petroleum natural gas exploration, particularly relate to a kind of disturbance and break rock drilling tool and disturbance rock-breaking and well-drilling method.
Background technology
Drilling engineering accounts for more than the 50% of oil and gas development cost, and investment is big, and risk is high, and improving drilling efficiency is the optimal path reducing cost of exploration & development, the important goal that Ye Shiyou company, drilling contractor and technical service company are always pursued.The ratio shared in oil drilling along with deep-well, ultradeep well, easy inclined shaft, hard formation, horizontal well and extended reach well is increasing, the hard formation run in deep-well and the conventional simple rotary drilling method rock breaking efficiency of firm hard formation are poor, drilling efficiency is low, and the hole deviation problem in deep-well also becomes increasingly conspicuous；In horizontal well and extended reach well drilling, along with the increase of horizontal displacement, the pressurization of horizontal well is increasingly difficult, and the damage of drilling tool is even more serious.Nearly 3 or five years, raising drilling speed, reduction drilling cost were one of technology of petroleum works field height requirement.
At present, improve efficiency of breaking rock mainly to study in terms of three: one is that mechanical high-efficient breaks rock dust.The most new and effective drill bit, the BD536PDC drill bit of calendar year 2001 Hughes Clayton Christensen company production creates once to go into the well and bores the world record of deep 6994m.2. spin drilling tool, payes attention to than the most all solving these problems by churn drill technology both at home and abroad, and puts into a large amount of manpower and materials and study.At present, rotating drilling technology does not passes a test because of impacter quality, and the life-span does not also reach the required time, can not meet the needs of actual well drilled, it is impossible to be widely popularized.At present Germany and the U.S. are also stepping up the application of studying this technology in ultradeep well.The U.S. and Germany's joint investment 7,000,000 dollars research particularly apply rotating drilling technology at oil drilling in ultradeep well.Impacter provides impulsive force by block stamp, and it is the most difficult that this operation principle determines its quality of raising.Two is jet aided drilling rock breaking method.1. down-hole pump, U.S. S.D.Veenhuizen etc. reaches the superhigh pressure water jet of more than 100MPa by down-hole pump supercharging, improves rate of penetration 2 times, but at most work 50h lost efficacy, its key technology room pressurized construction and service life.2. its surge pressure device of down-hole, relies primarily on its sharp effect of jet entrainment effect or resonant cavity feedback effect or annular fluid pressure.Three is the method that the ground pressure drop of fall shaft bottom improves efficiency of breaking rock, such as air drilling technology.
Heavily stressed+energetic disturbance rock breaking method is introduced oil drilling by Wei little Mei etc., it is that one utilizes deep formation rock itself to belong to storage bodies, and rock belongs to discontinuous phase, lure generation cracks can spread or the method for rock burst by outside machinery, be that a kind of conventional drilling that is different from breaks the most promising new method of rock." heavily stressed+energetic disturbance " this Practical Project problem is risen to science aspect, is the mechanics problem of rock coupled static-dynamic loadingi.Rock coupled static-dynamic loadingi problem, as a brand-new research topic, is that Li Xibing professor academician raw with Gourde(G) proposes first in 175 the science meetings in Fragrance Hill in 2002.But owing to coupled static-dynamic loadingi problem is from proposing till now, also in the stage of initial development, the influence factor that coupled static-dynamic loadingi experiment simultaneously relates to itself is numerous, and therefore the research in this field remains in the ascendant.Engineer applied aspect is own through achieving a lot of achievement in research at present, does not also apply at drilling engineering, is worth proceeding further investigation and research.
It is true that the deep formation rock of oil drilling is before bearing energetic disturbance load effect, among certain static stress or crustal stress states, as long as well dynamic instrument provides periodic disturbance power, unexpected rock burst or induced fracture can be caused.Obviously, the method is different from conventional drilling and breaks rock, breaks rock also different from rotary impact, but a kind of new heavily stressed+energetic disturbance rock breaking method.
Existing a kind of energetic disturbance breaks rock drilling tool, comprising: mandrel is located in urceolus, urceolus is connected by spline with mandrel；Turbine sleeve is located in urceolus, and its upper end is linked by screw thread with air deflector, is provided with rubber seal in the cannelure in the middle part of it, and its lower end is threaded connection with the upper end of mandrel；Turbine sleeve inner is located at by turbine, and turbine is fixed in the shaft core of air deflector, and the lower end of turbine is threaded connection with rotating eccentricity valve block；The lower surface of rotating eccentricity valve block is in close contact with the upper surface of fixing eccentric valve block, and fixing eccentric valve block is threaded connection with the upper end of mandrel.In drilling process, drilling fluid makes turbine rotate, rotated by turbine drive moving valve plate again, make the valid circulation area cyclically-varying between moving valve plate and fixing valve block, thus produce Water Hammer, form the dynamic loading of periodically soft change, the dead load produced with drilling tool deadweight, jointly act on rock, it is achieved rock is broken in heavily stressed disturbance.When horizontal well drilling or directional well, it is still desirable to the top breaking rock drilling tool at energetic disturbance based on turbine is connected with helicoid hydraulic motor, not only increases the length of whole BHA, also add the directed drilling difficulty of helicoid hydraulic motor.
Therefore, it is necessary to directly utilize helicoid hydraulic motor to improve power and realize disturbance and break rock, i.e. develop a kind of disturbance based on screw rod and break rock drilling tool and disturbance rock-breaking and well-drilling method, it is possible not only to provide the rotation energy required for broken rock for drill bit, also provide, for drill bit, the dynamic loading that continuous print is the softest, to improve efficiency of breaking rock.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that rock drilling tool and disturbance rock-breaking and well-drilling method are broken in a kind of disturbance that can improve efficiency of breaking rock and drilling machinery speed.
The present invention is achieved in that
The present invention provides a kind of disturbance to break rock drilling tool, including anti-lost assembly, motor assembly, universal drive shaft assembly, driving-shaft assembly and disturbance assembly, described anti-lost assembly connects described motor assembly, described motor assembly connects described universal drive shaft assembly, described universal drive shaft assembly connects described driving-shaft assembly, described driving-shaft assembly connects described disturbance assembly, and described disturbance assembly lower end is connected to the drill bit of rock drilling；Described driving-shaft assembly includes mandrel, lower TC bearing, gear, lower gear and transmission lever, described lower TC bearing holder (housing, cover) is located at the outside of described mandrel, the lower end location of described lower TC bearing is higher than described mandrel lower end location, the lower end of described lower TC bearing is provided with gear ring, described gear is located between described mandrel lower end and described gear ring, described lower gear is located at the bottom of described mandrel, is connected by described transmission lever between described gear with described lower gear；Described disturbance assembly includes shell, hollow drive shaft, disturbance axle and standing valve, described shell is threaded connection with described mandrel, described hollow drive shaft upper end is connected with described lower gear by external toothing, the lower end of described hollow drive shaft is provided with eccentric orfice, and carry out face with the described standing valve being arranged on described disturbance axle to contact, described shell is connected by spline with described disturbance axle, the lower surface of described shell, described disturbance axle become an annular seal space with the sealing cap-shaped on the step being positioned at described disturbance axle, are provided with disk spring in described annular seal space.
Further, the lower end of described hollow drive shaft is connected by spline with eccentric orfice axially movable.
Further, the lower end of described hollow drive shaft and eccentric orfice are threaded connection integral.
Further, described disk spring is by often organizing 1-2 disc spring sheet, and 2-4 group overlapping forms.
Further, the bottom of described disturbance axle is provided with the screw thread being connected with described drill bit.
Further, described mandrel bottom is one-body molded with described drill bit.
Further, the lower end of described hollow drive shaft and described standing valve are equipped with 1 eccentric orfice.
Further, the lower end of described hollow drive shaft is provided with 2-4 spaced equal-sized hole on identical radius of circle with described standing valve.
The present invention also provides for a kind of disturbance and breaks the disturbance rock-breaking and well-drilling method of rock drilling tool, comprises the following steps: step one: the upper end breaking rock drilling tool in disturbance is threaded connection with conventional BHA, and its lower end and drill bit are threaded connection；Step 2: when normally creeping into, drilling liquid flow drives its rotor to rotate through motor assembly, makes the mandrel in driving-shaft assembly relatively descend TC bearing rotary by universal drive shaft assembly；Force to be arranged on and between the gear ring of mandrel lower end and lower TC bearing, gear is set rotates in mandrel；And make the lower gear connected by transmission lever rotate；
Step 3: the lower gear of rotation drives the external toothing of hollow drive shaft upper end, make it rotate, the eccentric orfice generation relative motion of the eccentric orfice of hollow drive shaft lower end and the standing valve being arranged on disturbance axle, make two periodic alternation sums of eccentric orfice completely overlapped, the change of its valid circulation area generating period, thus water hammer is there is on the top of standing valve, form periodically variable Water Hammer Ft=Asin (t)；
Step 4: Water Hammer Ft passes to drill bit by mandrel, the gravity Fg produced by the weight of BHA passes to drill bit by shell, disk spring and mandrel, the gravity Fg of Water Hammer Ft and BHA acts on the rock immediately below drill bit jointly, it is in the deep formation rock of high-stress state under the periodic disturbance dynamic action that sound combines, causes induced fracture or rock burst suddenly.
Further, described disk spring is by often organizing 1-2 disc spring sheet, and 2-4 group overlapping forms.
The method have the advantages that
Rock drilling tool is broken in the disturbance that the present invention provides and disturbance rock-breaking and well-drilling method is by existing screw drive shaft housing and mandrel relative motion, be converted to gear rotate, finally realize disturbance assembly and produce periodically Water Hammer, and it is collectively forming the pressure of the drill with the gravity of top BHA, realizing " heavily stressed+disturbance ", it has the advantages such as high efficiency of breaking rock and high rate of penetration.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 breaks the structural representation of rock drilling tool for the disturbance that the embodiment of the present invention provides；
Driving-shaft assembly that Fig. 2 provides for the embodiment of the present invention and the structural representation of disturbance assembly；
Fig. 3 is the A-A cross sectional representation in Fig. 2；
Fig. 4 is the B-B cross sectional representation in Fig. 2；
Fig. 5 is the C-C cross sectional representation in Fig. 2；
Fig. 6 is the eccentric orfice of empty power transmission shaft and the eccentric orfice of the standing valve relative motion relation schematic diagram during disturbance rock-breaking and well-drilling of disturbance assembly；
Fig. 7 is the Water Hammer schematic diagram that the standing valve top of disturbance assembly produces during disturbance rock-breaking and well-drilling；
When Fig. 8 is disturbance rock-breaking and well-drilling, disturbance breaks rock drilling tool to the force diagram of rock immediately below drill bit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained on the premise of not making creative work, broadly fall into the scope of protection of the invention.
Such as Fig. 1 to Fig. 8, the embodiment of the present invention provides a kind of disturbance to break rock drilling tool, including anti-lost assembly 1, motor assembly 2, universal drive shaft assembly 3, driving-shaft assembly 4 and disturbance assembly 5, described anti-lost assembly connects described motor assembly, described motor assembly connects described universal drive shaft assembly, described universal drive shaft assembly connects described driving-shaft assembly 4, and described driving-shaft assembly 4 connects described disturbance assembly, and described disturbance assembly lower end is connected to the drill bit of rock drilling.
Such as Fig. 1 to Fig. 8, described driving-shaft assembly includes mandrel 4a, lower TC bearing 4b, gear 4c, lower gear 4e and transmission lever.Described lower TC bearing 4b is sheathed on the outside of described mandrel, the lower end location of described lower TC bearing 4b is higher than described mandrel 4a lower end location, the lower end of described lower TC bearing 4b is provided with gear ring, described gear 4c is located between described mandrel 4a lower end and described gear ring, described lower gear 4e is located at the bottom of described mandrel 4a, is connected by described transmission lever 4d between described gear 4c with described lower gear 4e.
Such as Fig. 1 to Fig. 8, described disturbance assembly 5 includes shell 5c, hollow drive shaft 5a, disturbance axle 5d and standing valve 5b.Described shell 5c is threaded connection with described mandrel 4a, described hollow drive shaft 5a upper end is connected with described lower gear 4e by external toothing, the lower end of described hollow drive shaft 5a is provided with eccentric orfice, and carries out face with the described standing valve 5b being arranged on described disturbance axle 5d and contact.In this preferred embodiment, the lower end of described hollow drive shaft and described standing valve are equipped with 1 eccentric orfice.In other embodiments, the lower end of described hollow drive shaft 5a is provided with 2-4 spaced equal-sized hole on identical radius of circle with described standing valve 5b.
Such as Fig. 1 to Fig. 8, described shell 5c is connected by spline with described disturbance axle 5d, the lower surface of described shell 5c, described disturbance axle 5d and the sealing lid 5f being positioned on the step of described disturbance axle 5d form an annular seal space, disk spring 5e it is provided with in described annular seal space, in this preferred embodiment, described disk spring 5e is by often organizing 1-2 disc spring sheet, and 2-4 group overlapping forms.
In this preferred embodiment, the lower end of described hollow drive shaft 5a is connected by spline with eccentric orfice axially movable；Or, the lower end of described hollow drive shaft 5a is threaded connection integral with eccentric orfice.The bottom of described disturbance axle 5d is provided with the screw thread being connected with described drill bit, is conveniently connected with drill bit；Or using described mandrel 4a bottom one-body molded with described drill bit, therefore drill bit is made without other installation.
Such as Fig. 1 to Fig. 8, the embodiment of the present invention also provides for a kind of disturbance and breaks the disturbance rock-breaking and well-drilling method of rock drilling tool, and it comprises the following steps: step one: the upper end breaking rock drilling tool in disturbance is threaded connection with conventional BHA, and its lower end and drill bit are threaded connection.
Step 2: when normally creeping into, drilling liquid flow drives its rotor to rotate through motor assembly 2, makes the mandrel 4a in driving-shaft assembly 4 rotate relative to lower TC bearing 4b by universal drive shaft assembly 3；Force to be arranged on and between the gear ring of mandrel 4a lower end and lower TC bearing 4b, gear 4c is set rotates in mandrel 4a；And make the lower gear 4e connected by transmission lever 4d rotate.
Step 3: the lower gear 4e of rotation drives the external toothing of hollow drive shaft 5a upper end, make it rotate, relative motion is there is in the eccentric orfice (definition center, hole is O1) of hollow drive shaft 5a lower end with the eccentric orfice (definition center, hole is O2) of the standing valve 5b being arranged on disturbance axle 5d, make two periodic alternation sums of eccentric orfice completely overlapped (as shown in Figure 6), the change of its valid circulation area generating period, thus water hammer is there is on the top of standing valve 5b, form periodically variable Water Hammer Ft=Asin (t).
Step 4: Water Hammer Ft passes to drill bit by mandrel 4a, the gravity Fg produced by the weight of BHA passes to drill bit by shell 5c, disk spring 5e and mandrel 4a, the gravity Fg of Water Hammer Ft and BHA acts on the rock immediately below drill bit jointly, it is in the deep formation rock of high-stress state under the periodic disturbance dynamic action that sound combines, cause induced fracture, even suddenly, rock burst, makes drill bit high efficiency break rock.
The disturbance that the present invention provides breaks rock drilling tool and disturbance rock-breaking and well-drilling method by existing screw drive shaft housing and mandrel relative motion, be converted to gear rotate, finally realize disturbance assembly and produce periodically Water Hammer, and it is collectively forming the pressure of the drill with the gravity of top BHA, realizing " heavily stressed+disturbance ", it has the advantages such as high efficiency of breaking rock and high rate of penetration.
Compared with prior art, the present invention has and following has significant technological progress and a prominent beneficial effect:
1, to break the BHA of rock drilling tool simpler than BHA's structure based on turbo-driven disturbance drilling tool in described disturbance: directly utilizes the power drive disturbance assembly of existing motor assembly, realize disturbance rock-breaking and well-drilling method, drive bit to break rock impact helicoid hydraulic motor little simultaneously, motor assembly is combined with disturbance drilling tool, substantially reduce the distance between motor and drill bit, simplify BHA；And when driving disturbance assembly by turbine etc., in addition it is also necessary to it is connected to drive the motor of bit on disturbance drilling tool top.
2, described disturbance breaks rock drilling tool than turbo-driven disturbance drilling tool safety and reliability: the power driving described disturbance to break required for rock drilling tool moves is far smaller than helicoid hydraulic motor output, thus the present invention provide described disturbance break rock drilling tool produce perturbed force more stable and controlled, thus rock burst intensity grade can be produced when breaking rock by control disturbance, reach safe and efficient speed-raising purpose；And during by turbine drive disturbance drilling tool, the rotary speed unstabilization of turbine is fixed, easily causes rock immediately below drill bit and strong rock burst or strong rock burst on active occur, cause that hole diameter is the most irregular, the even accident such as burying.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. rock drilling tool is broken in a disturbance, it is characterized in that, including anti-lost assembly, motor assembly, universal drive shaft assembly, driving-shaft assembly and disturbance assembly, described anti-lost assembly connects described motor assembly, described motor assembly connects described universal drive shaft assembly, described universal drive shaft assembly connects described driving-shaft assembly, and described driving-shaft assembly connects described disturbance assembly, and described disturbance assembly lower end is connected to the drill bit of rock drilling；
Described driving-shaft assembly includes mandrel, lower TC bearing, gear, lower gear and transmission lever, described lower TC bearing holder (housing, cover) is located at the outside of described mandrel, the lower end location of described lower TC bearing is higher than described mandrel lower end location, the lower end of described lower TC bearing is provided with gear ring, described gear is located between described mandrel lower end and described gear ring, described lower gear is located at the bottom of described mandrel, is connected by described transmission lever between described gear with described lower gear；
Described disturbance assembly includes shell, hollow drive shaft, disturbance axle and standing valve, described shell is threaded connection with described mandrel, described hollow drive shaft upper end is connected with described lower gear by external toothing, the lower end of described hollow drive shaft is provided with eccentric orfice, and carry out face with the described standing valve being arranged on described disturbance axle to contact, described shell is connected by spline with described disturbance axle, the lower surface of described shell, described disturbance axle become an annular seal space with the sealing cap-shaped on the step being positioned at described disturbance axle, are provided with disk spring in described annular seal space.
2. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: the lower end of described hollow drive shaft is connected by spline with eccentric orfice axially movable.
3. rock drilling tool is broken in disturbance as claimed in claim 1 or 2, it is characterised in that: the lower end of described hollow drive shaft and eccentric orfice are threaded connection integral.
4. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: described disk spring is by often organizing 1-2 disc spring sheet, and 2-4 group overlapping forms.
5. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: the bottom of described disturbance axle is provided with the screw thread being connected with described drill bit.
6. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: described mandrel bottom is one-body molded with described drill bit.
7. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: it is equipped with 1 eccentric orfice on the lower end of described hollow drive shaft and described standing valve.
8. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterised in that: the lower end of described hollow drive shaft is provided with 2-4 spaced equal-sized hole on identical radius of circle with described standing valve.
9. the disturbance rock-breaking and well-drilling method of rock drilling tool is broken in a disturbance as claimed in claim 1, it is characterised in that comprise the following steps:
Step one: the upper end breaking rock drilling tool in disturbance is threaded connection with conventional BHA, and its lower end and drill bit are threaded connection；
Step 2: when normally creeping into, drilling liquid flow drives its rotor to rotate through motor assembly, makes the mandrel in driving-shaft assembly relatively descend TC bearing rotary by universal drive shaft assembly；Force to be arranged on and between the gear ring of mandrel lower end and lower TC bearing, gear is set rotates in mandrel；And make the lower gear connected by transmission lever rotate；
Step 3: the lower gear of rotation drives the external toothing of hollow drive shaft upper end, make it rotate, the eccentric orfice generation relative motion of the eccentric orfice of hollow drive shaft lower end and the standing valve being arranged on disturbance axle, make two periodic alternation sums of eccentric orfice completely overlapped, the change of its valid circulation area generating period, thus water hammer is there is on the top of standing valve, form periodically variable Water Hammer Ft=Asin (t)；
Step 4: Water Hammer Ft passes to drill bit by mandrel, the gravity Fg produced by the weight of BHA passes to drill bit by shell, disk spring and mandrel, the gravity Fg of Water Hammer Ft and BHA acts on the rock immediately below drill bit jointly, it is in the deep formation rock of high-stress state under the periodic disturbance dynamic action that sound combines, causes induced fracture or rock burst suddenly.
10. disturbance rock-breaking and well-drilling method as claimed in claim 9, it is characterised in that: described disk spring is by often organizing 1-2 disc spring sheet, and 2-4 group overlapping forms.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824286.5A CN104594801B (en) | 2014-12-26 | 2014-12-26 | Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance |
| PCT/CN2015/072117 WO2016101387A1 (en) | 2014-12-26 | 2015-02-02 | Disturbance rock-breaking drill tool and disturbance rock-breaking well drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824286.5A CN104594801B (en) | 2014-12-26 | 2014-12-26 | Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance |
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| CN104594801A CN104594801A (en) | 2015-05-06 |
| CN104594801B true CN104594801B (en) | 2017-01-04 |
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| CN201410824286.5A Active CN104594801B (en) | 2014-12-26 | 2014-12-26 | Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance |
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| WO (1) | WO2016101387A1 (en) |
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| CN104948106B (en) * | 2015-07-02 | 2017-03-08 | 山东东远石油装备有限公司 | A kind of hydraulic pressurizer of employing line motor supercharging |
| CN108194033B (en) * | 2017-12-21 | 2024-03-29 | 天津立林石油机械有限公司 | Double-compensation automatic pressure-regulating oil seal transmission shaft assembly of screw drilling tool |
| CN108798555B (en) * | 2018-07-05 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Oil seal rotary flushing double-mode screw drilling tool |
| CN108868657A (en) * | 2018-09-18 | 2018-11-23 | 中国石油集团西部钻探工程有限公司 | Drill bit protective device |
| CN109488206B (en) * | 2018-12-21 | 2023-09-05 | 西南石油大学 | Explosion shock wave-mechanical drilling rock breaking device |
| CN112832671B (en) * | 2020-08-05 | 2023-03-28 | 中石化江钻石油机械有限公司 | Underground power tool with anti-falling mechanism |
| CN112523679B (en) * | 2020-11-30 | 2022-07-19 | 中国石油天然气集团有限公司 | Wire passing transmission shaft assembly and wire passing method |
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| CN1413285A (en) * | 1999-12-20 | 2003-04-23 | 哈利伯顿能源服务公司 | Three dimensional steerable system |
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| WO2016101387A1 (en) | 2016-06-30 |
| CN104594801A (en) | 2015-05-06 |
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