CN104594801A - Destabilization rock breaking drill tool and destabilization rock breaking well drilling method - Google Patents
Destabilization rock breaking drill tool and destabilization rock breaking well drilling method Download PDFInfo
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- CN104594801A CN104594801A CN201410824286.5A CN201410824286A CN104594801A CN 104594801 A CN104594801 A CN 104594801A CN 201410824286 A CN201410824286 A CN 201410824286A CN 104594801 A CN104594801 A CN 104594801A
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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 invention relates to a destabilization rock breaking drill tool which comprises an anti-falling assembly, a motor assembly, a universal shaft assembly, a transmission shaft assembly and a destabilization assembly. The anti-falling assembly is connected with the motor assembly, the motor assembly is connected with the universal shaft assembly, the universal shaft assembly is connected with the transmission shaft assembly, the transmission shaft assembly is connected with the destabilization assembly, and the lower end of the destabilization assembly is connected with a drill bit. The transmission shaft assembly comprises a mandrel, a lower TC outer barrel, an upper gear, a lower gear and a transfer rod. An eccentric hole is formed in the lower end of a hollow transmission shaft of the destabilization assembly, and the destabilization assembly is in face contact with a fixed valve arranged on a destabilization shaft. The invention further provides a destabilization rock breaking well drilling method. According to the destabilization rock breaking drill tool and the destabilization rock breaking well drilling method, relative motion of an existing transmission shaft shell with a screw rod and a mandrel is transformed into gear rotation, the destabilization assembly generates periodic water hammer force finally, bit pressure is formed by the periodic water hammer force and the gravity of an upper drill tool assembly, high stress and destabilization are achieved, and the advantages of being high in rock breaking efficiency and mechanical drilling speed and the like are achieved.
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 50% of oil and gas development cost, and investment is large, 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.Along with the ratio shared by deep-well, ultradeep well, easily inclined shaft, hard formation, horizontal well and extended reach well are in oil drilling is increasing, rotary drilling method rock breaking efficiency is poor merely for the hard formation run in deep-well and firm hard formation routine, 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 movement, the pressurization of horizontal well is more difficult, and the damage of drilling tool is also even more serious.Nearly 3 or five years, improving drilling speed, reducing drilling cost was one of technology of petroleum works field height requirement.
At present, efficiency of breaking rock is improved mainly from three aspect researchs: one is that mechanical high-efficient breaks rock dust.1. new and effective drill bit, the BD536PDC drill bit that calendar year 2001 Hughes Clayton Christensen company produces creates once to go into the well and bores the world record of dark 6994m.2. whenever spin drilling tool, than all pay attention to solving these problems by churn drill technology both at home and abroad, and drop into a large amount of manpower and materials and study.At present, rotating drilling technology does not pass a test because of impactor quality, and the life-span does not also reach the required time, can not meet the needs of actual well drilled, can not extensively promote.Current Germany and the U.S. are also stepping up to study the application of this technology in ultradeep well.The U.S. and German joint investment 7,000,000 dollars research particularly apply rotating drilling technology at oil drilling in ultradeep well.Impactor provides impact force by block stamp, and it is very difficult that this operating principle determines its quality of raising.Two is jet aided drilling rock breaking methods.1. down-hole pump, U.S. S.D.Veenhuizen etc. reach the superhigh pressure water jet of more than 100MPa by down-hole pump supercharging, improve rate of penetration 2 times, but work 50h lost efficacy at most, its key technology room pressurized construction and application life.2. its surge pressure device of down-hole, main its sharp effect relying on jet entrainment effect or resonant cavity feedback effect or annular fluid pressure.Three is fall the method that shaft bottom ground pressure drop improves efficiency of breaking rock, as air drilling technology.
Heavily stressed+energetic disturbance rock breaking method is introduced oil drilling by Wei little Mei etc., that one utilizes deep formation rock itself to belong to storage bodies, and rock belongs to discontinuous phase, being lured the method that Crack Extension or rock burst occur by exterior mechanical, is a kind ofly be different from the very promising new method that conventional drilling breaks 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 and Gourde(G) are given birth to academician and proposed first in 175 the science meetings in Fragrance Hill in 2002.But because coupled static-dynamic loadingi problem is from proposing till now, be also in the stage of initial development, the influence factor that coupled static-dynamic loadingi experiment itself simultaneously relates to is numerous, and the research therefore in this field remains in the ascendant.Current engineer applied aspect is own through achieving a lot of achievement in research, also not in drilling engineering application, is worth proceeding further investigation and research.
In fact, the deep formation rock of oil drilling, before bearing the effect of energetic disturbance load, has been among certain static stress or crustal stress states, as long as well dynamic instrument provides periodic disturbance power, can cause unexpected rock burst or induced fracture.Obviously, the method is different from conventional drilling to break rock, is also different from rotary impact and breaks rock, but a kind of newly heavily stressed+energetic disturbance rock breaking method.
Existing a kind of energetic disturbance breaks rock drilling tool, and it comprises: mandrel is located in urceolus, and urceolus and mandrel pass through spline joint; 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 the upper end of its lower end and mandrel is threaded connection; Turbine sleeve inner is located at by turbine, and turbine is fixed on the axle core of air deflector, and lower end and the rotating eccentricity valve block of turbine are threaded connection; The lower surface of rotating eccentricity valve block and the upper surface close contact of fixing eccentric valve block, the upper end of fixing eccentric valve block and mandrel is threaded connection.In drilling process, drilling fluid makes turbine rotate, rotated by turbine drives moving valve plate again, make the valid circulation area cyclically-varying between moving valve plate and fixing valve block, thus generation Water Hammer, form the dynamic loading of periodically soft change, to conduct oneself with dignity the static load produced with drilling tool, acting in conjunction, in rock, realizes heavily stressed disturbance and breaks rock.When horizontal well drilling or directional well, still need the top of breaking rock drilling tool at the energetic disturbance based on turbine to be connected with helicoid hydraulic motor, not only increase the length of whole drilling assembly, also add the directed drilling difficulty of helicoid hydraulic motor.
Therefore, be necessary that directly utilizing helicoid hydraulic motor raising power to realize disturbance breaks rock, namely develop a kind of disturbance based on screw rod and break rock drilling tool and disturbance rock-breaking and well-drilling method, not only can provide brokenly the energy of rotation required for rock for drill bit, also for drill bit provides the dynamic loading that continuous print is periodically soft, to improve efficiency of breaking rock.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide a kind of disturbance that can improve efficiency of breaking rock and drilling machinery speed and break rock drilling tool and disturbance rock-breaking and well-drilling method.
The present invention is achieved in that
The invention provides a kind of disturbance and break rock drilling tool, comprise 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 connects the drill bit for boring rock; Described driving-shaft assembly comprises mandrel, lower TC urceolus, cogs, lower gear and transmission lever, described lower TC urceolus is sheathed on the outside of described mandrel, the position residing for lower end of described lower TC urceolus is higher than the position residing for described mandrel lower end, the lower end of described lower TC urceolus is provided with gear ring, described cogging is located between described mandrel lower end and described gear ring, described lower gear is located at the bottom of described mandrel, described in cog and to be connected by described transmission lever with between described lower gear; Described disturbance assembly comprises shell, hollow drive shaft, disturbance axle and standing valve, described shell and described mandrel are threaded connection, 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 be arranged on described disturbance axle to contact, described shell and described disturbance axle pass through spline joint, the lower surface of described shell, described disturbance axle and the seal cover be positioned on the step of described disturbance axle form an annular seal space, are provided with disk spring in described annular seal space.
Further, spline joint is passed through with the eccentric orfice moved vertically in the lower end of described hollow drive shaft.
Further, the lower end of described hollow drive shaft and eccentric orfice are threaded connection in aggregates.
Further, described disk spring by often organizing 1-2 disc spring sheet, the superimposed composition of 2-4 group.
Further, the bottom of described disturbance axle is provided with the screw thread be connected with described drill bit.
Further, described mandrel bottom and described drill bit one-body molded.
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 the individual spaced equal-sized hole of 2-4 with described standing valve on identical radius of circle.
A kind of disturbance rock-breaking and well-drilling method that the present invention also provides disturbance to break rock drilling tool, comprises the following steps: step one: break the upper end of rock drilling tool and conventional drilling assembly is threaded connection in disturbance, 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, by universal drive shaft assembly, the mandrel in driving-shaft assembly is rotated relative to lower TC urceolus; Force be arranged on mandrel lower end and lower TC urceolus gear ring between arrange to cog and to rotate in mandrel; And the lower gear connected by transmission lever is rotated;
Step 3: the lower gear of rotation drives the external toothing of hollow drive shaft upper end, make it rotate, eccentric orfice and the eccentric orfice generation relative motion being arranged at the standing valve on disturbance axle of hollow drive shaft lower end, make two periodic alternation sums of eccentric orfice completely overlapping, the change of its valid circulation area generating period, thus there is water hammer 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 drilling assembly passes to drill bit by shell, disk spring and mandrel, the rock of gravity Fg acting in conjunction immediately below drill bit of Water Hammer F (t) and drilling assembly, under the periodic disturbance dynamic action that the deep formation rock being in high-stress state combines in sound, cause induced fracture or rock burst suddenly.
Further, described disk spring by often organizing 1-2 disc spring sheet, the superimposed composition of 2-4 group.
The present invention has following beneficial effect:
Rock drilling tool is broken in disturbance provided by the invention and disturbance rock-breaking and well-drilling method is by existing screw drive shaft housing and mandrel relative motion, be converted to gear to rotate, finally realize disturbance assembly and produce periodically Water Hammer, and jointly form the pressure of the drill with the gravity of top drilling assembly, realize " 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 in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 breaks the structural representation of rock drilling tool for disturbance that the embodiment of the present invention provides;
The structural representation of the driving-shaft assembly that Fig. 2 provides for the embodiment of the present invention and 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 relative motion relation schematic diagram of the eccentric orfice of standing valve in disturbance rock-breaking and well-drilling process of disturbance assembly;
Fig. 7 is the Water Hammer schematic diagram that the standing valve top of disturbance assembly in disturbance rock-breaking and well-drilling process produces;
When Fig. 8 is disturbance rock-breaking and well-drilling, the force diagram of rock drilling tool to rock immediately below drill bit is broken in disturbance.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
As Fig. 1 to Fig. 8, the embodiment of the present invention provides a kind of disturbance to break rock drilling tool, comprise 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 connects the drill bit for boring rock.
As Fig. 1 to Fig. 8, described driving-shaft assembly comprises mandrel 4a, lower TC urceolus 4b, the 4c that cogs, lower gear 4e and transmission lever.Described lower TC urceolus 4b is sheathed on the outside of described mandrel, the position residing for lower end of described lower TC urceolus 4b is higher than the position residing for described mandrel 4a lower end, the lower end of described lower TC urceolus 4b is provided with gear ring, the described 4c of cogging 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, described in cog between 4c with described lower gear 4e and be connected by described transmission lever 4d.
As Fig. 1 to Fig. 8, described disturbance assembly 5 comprises shell 5c, hollow drive shaft 5a, disturbance axle 5d and standing valve 5b.Described shell 5c and described mandrel 4a is threaded connection, 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 be 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 the individual spaced equal-sized hole of 2-4 with described standing valve 5b on identical radius of circle.
As Fig. 1 to Fig. 8, described shell 5c and described disturbance axle 5d passes through spline joint, the lower surface of described shell 5c, described disturbance axle 5d and the seal cover 5f be positioned on the step of described disturbance axle 5d form an annular seal space, disk spring 5e is provided with in described annular seal space, in this preferred embodiment, described disk spring 5e by often organizing 1-2 disc spring sheet, the superimposed composition of 2-4 group.
In this preferred embodiment, spline joint is passed through with the eccentric orfice moved vertically in the lower end of described hollow drive shaft 5a; Or lower end and the eccentric orfice of described hollow drive shaft 5a are threaded connection in aggregates.The bottom of described disturbance axle 5d is provided with the screw thread be connected with described drill bit, is conveniently connected with drill bit; Or adopt described mandrel 4a bottom and described drill bit one-body molded, therefore drill bit does not need to carry out other installation.
As Fig. 1 to Fig. 8, a kind of disturbance rock-breaking and well-drilling method that the embodiment of the present invention also provides disturbance to break rock drilling tool, it comprises the following steps: step one: break the upper end of rock drilling tool and conventional drilling assembly is threaded connection in disturbance, 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, by universal drive shaft assembly 3, the mandrel 4a in driving-shaft assembly 4 is rotated relative to lower TC urceolus 4b; Force be arranged on mandrel 4a lower end and lower TC urceolus 4b gear ring between the 4c that cogs be set rotate in mandrel 4a; And the lower gear 4e connected by transmission lever 4d is rotated.
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 (defining center, hole is O2) being arranged at the standing valve 5b on disturbance axle 5d, make two periodic alternation sums of eccentric orfice completely overlapping (as shown in Figure 6), the change of its valid circulation area generating period, thus there is water hammer 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 drilling assembly passes to drill bit by shell 5c, disk spring 5e and mandrel 4a, the rock of gravity Fg acting in conjunction immediately below drill bit of Water Hammer F (t) and drilling assembly, under the periodic disturbance dynamic action that the deep formation rock being in high-stress state combines in sound, cause induced fracture, even suddenly, rock burst, makes drill bit high efficiency break rock.
Disturbance provided by the invention 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 to rotate, finally realize disturbance assembly and produce periodically Water Hammer, and jointly form the pressure of the drill with the gravity of top drilling assembly, realize " 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 the following beneficial effect having significant technological progress and give prominence to:
1, to break the Bottom Hole Assembly (BHA) of rock drilling tool simpler than the BHA's structure based on turbo-driven disturbance drilling tool in described disturbance: the power drive disturbance assembly directly utilizing existing motor assembly, realize disturbance rock-breaking and well-drilling method, drive bit to break rock impact not quite on helicoid hydraulic motor simultaneously, motor assembly and disturbance drilling tool are combined, substantially reduce the distance between motor and drill bit, simplify drilling assembly; And during by driving disturbance assemblies such as turbines, also need the motor connected on disturbance drilling tool top for driving bit.
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 the motion of rock drilling tool is far smaller than helicoid hydraulic motor power output, thus described disturbance provided by the invention 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 object; And during by turbine drives disturbance drilling tool, the rotary speed unstabilization of turbine is fixed, easily cause rock immediately below drill bit that strong rock burst or strong rock burst on active occur, cause that hole diameter is very irregular, the even accident such as bury drills.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. rock drilling tool is broken in a disturbance, it is characterized in that, comprise 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 connects the drill bit for boring rock;
Described driving-shaft assembly comprises mandrel, lower TC urceolus, cogs, lower gear and transmission lever, described lower TC urceolus is sheathed on the outside of described mandrel, the position residing for lower end of described lower TC urceolus is higher than the position residing for described mandrel lower end, the lower end of described lower TC urceolus is provided with gear ring, described cogging is located between described mandrel lower end and described gear ring, described lower gear is located at the bottom of described mandrel, described in cog and to be connected by described transmission lever with between described lower gear;
Described disturbance assembly comprises shell, hollow drive shaft, disturbance axle and standing valve, described shell and described mandrel are threaded connection, 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 be arranged on described disturbance axle to contact, described shell and described disturbance axle pass through spline joint, the lower surface of described shell, described disturbance axle and the seal cover be positioned on the step of described disturbance axle form an annular seal space, 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 characterized in that: spline joint is passed through with the eccentric orfice moved vertically in the lower end of described hollow drive shaft.
3. rock drilling tool is broken in disturbance as claimed in claim 1 or 2, it is characterized in that: the lower end of described hollow drive shaft and eccentric orfice are threaded connection in aggregates.
4. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that: described disk spring by often organizing 1-2 disc spring sheet, the superimposed composition of 2-4 group.
5. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that: the bottom of described disturbance axle is provided with the screw thread be connected with described drill bit.
6. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that: described mandrel bottom and described drill bit one-body molded.
7. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that: the lower end of described hollow drive shaft and described standing valve are equipped with 1 eccentric orfice.
8. rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that: lower end and the described standing valve of described hollow drive shaft are provided with the individual spaced equal-sized hole of 2-4 on identical radius of circle.
9. a disturbance rock-breaking and well-drilling method for rock drilling tool is broken in disturbance as claimed in claim 1, it is characterized in that, comprises the following steps:
Step one: break the upper end of rock drilling tool and conventional drilling assembly is threaded connection in disturbance, 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, by universal drive shaft assembly, the mandrel in driving-shaft assembly is rotated relative to lower TC urceolus; Force be arranged on mandrel lower end and lower TC urceolus gear ring between arrange to cog and to rotate in mandrel; And the lower gear connected by transmission lever is rotated;
Step 3: the lower gear of rotation drives the external toothing of hollow drive shaft upper end, make it rotate, eccentric orfice and the eccentric orfice generation relative motion being arranged at the standing valve on disturbance axle of hollow drive shaft lower end, make two periodic alternation sums of eccentric orfice completely overlapping, the change of its valid circulation area generating period, thus there is water hammer 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 drilling assembly passes to drill bit by shell, disk spring and mandrel, the rock of gravity Fg acting in conjunction immediately below drill bit of Water Hammer F (t) and drilling assembly, under the periodic disturbance dynamic action that the deep formation rock being in high-stress state combines in sound, cause induced fracture or rock burst suddenly.
10. disturbance rock-breaking and well-drilling method as claimed in claim 9, is characterized in that: described disk spring by often organizing 1-2 disc spring sheet, the superimposed composition of 2-4 group.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104594801A true CN104594801A (en) | 2015-05-06 |
| CN104594801B 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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| Country | Link |
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| CN (1) | CN104594801B (en) |
| WO (1) | WO2016101387A1 (en) |
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| 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 |
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| 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 |
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| CN109488206B (en) * | 2018-12-21 | 2023-09-05 | 西南石油大学 | Explosion shock wave-mechanical drilling rock breaking device |
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| CN104948106A (en) * | 2015-07-02 | 2015-09-30 | 山东东远石油装备有限公司 | Hydraulic pressurizer adopting linear motor for pressurizing |
| 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 |
| 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 |
| CN112832671A (en) * | 2020-08-05 | 2021-05-25 | 中石化江钻石油机械有限公司 | Underground power tool with anti-falling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016101387A1 (en) | 2016-06-30 |
| CN104594801B (en) | 2017-01-04 |
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