CN1676862A - Mechanical automatic vertical drilling tool - Google Patents
Mechanical automatic vertical drilling tool Download PDFInfo
- Publication number
- CN1676862A CN1676862A CN 200510043237 CN200510043237A CN1676862A CN 1676862 A CN1676862 A CN 1676862A CN 200510043237 CN200510043237 CN 200510043237 CN 200510043237 A CN200510043237 A CN 200510043237A CN 1676862 A CN1676862 A CN 1676862A
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- moushroom valve
- well
- piston rod
- axle
- housing
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Abstract
One kind of mechanical type automatic vertically well-drilling tool, including turner, the conduction current head, the bearing, the counterweight, the spindle, in-tube, the back plate, above plate-valve, gets down plate-value, the shell, the piston cylinder back plate and the piston, its principle is at the right moment induces the well slanting gravity signal, by the gravity-actuates in the organization, the establishment drills inside and out the column high-low pressure channel between the fluid, uses two between the differential pressure, actuates the piston at the right moment to push depends on the wall of a well is high side, the wall of a well reacting force then pushes the drill bit to is low side, but in well-eye other positions, the piston does not push depends on the wall of a well, drills the column revolves, this process circulation reciprocation, the well is slanting namely is unceasingly induced and the revision, this invention realization is initiative, At the right moment guards against slanting at the same time, but also can effectively liberate distilling, largely enhances drills fast and well-eye the quality, reduces the construction risk, this invention has the structure is simple, reliable, is suitable to the many kinds of well drilling platform, the processing makes the maintenance cost is low and so on the characteristic.
Description
Technical field
The invention belongs to the corollary apparatus of oil, gas drilling.
Technical background
Straight well be occur the earliest, the present maximum class oil gas well of quantity, straight well accounts for 55% of global drilling well at least according to statistics, only just there are 50,000 mouthfuls of straight wells (not comprising China) of surpassing in the whole world in 2004.But modern drilling well is through years of development, and the problem of straight well drilling well is not well solved, the problem that straight well is anti-tiltedly to be exactly ubiquity, give prominence to very much.
Present conventional straight well is anti-tiltedly mainly to be with meeting the eye on every side combination " weight is bored soon ", with Man Baozhi, well straightening is then with pendulum combination " the light pressure hung up and beaten ", with slow well straightening, its disadvantage is with sacrificing the pressure of the drill and expensively exchanging little hole deviation for, exchange wellbore quality for the sacrifice drilling speed, wellbore quality and economic benefit oppose.Though technology such as tower drilling tool, square drill collar, decentralized drill collar, the anti-oblique device of HCY, off-axis deviation prevention and fast technology, flexible combination deviation prevention and fast technology, steering drilling tool deviation prevention and fast technology and anti-pendulum deviation prevention and fast technology also occurred, but, be difficult to generally promote the use of owing to all have certain limitation.
Because the anti-oblique well straightening technology restricted application of conventional straight well, can not satisfy as height construct suddenly, the needs of drilling straight-hole under the complex situations such as deep-well.People also recognize gradually simultaneously, and drilling straight-hole is not low-cost and simple drillng operation, press for the new anti-oblique technology of development.New anti-oblique technology should not only can prevent tiltedly, and can also beat soon, and with high-quality with efficiently unite effectively, in other words " automation+simply+do not influence drilling process+efficiently+economic benefit " is the principal character that current straight well is prevented oblique well straightening technical development.
Summary of the invention
The present invention is just for realizing in straight well creeps into initiatively, tiltedly anti-in good time, do not influence simultaneously drilling process again, can obtain high drilling speed, can realize high-quality and unified efficiently and design, its principle is to respond to the gravitational cue of hole deviation in good time, by weight-driven mechanism, set up the passage between the inside and outside high-low pressure fluid of drill string, utilize the pressure reduction of the two, the in good time backup borehole wall of driven plunger flash, the reaction force of the borehole wall is then pushed drill bit to low limit, and in other positions of well, piston is the not backup borehole wall then, drill string rotating, this process moves in circles, and hole deviation is promptly constantly responded to and revised, and purpose of the present invention provides a kind of mechanical automatic vertical drilling tool for the scene exactly.
The present invention is achieved like this, it is by crossover sub, flow guiding head, bearing, counterweight, axle, inner core, the inner core baffle plate, last moushroom valve, following moushroom valve, housing, compositions such as piston rod baffle plate and piston, bearing is contained in the two ends of axle, counterweight is fixed on a side of axle, between the bearing, then with axle, bearing and the counterweight inner core of packing into together, flow guiding head is fixed on the inner core upper end, the inner core baffle-plate-sleeve is in the lower end of axle, and fix with inner core, the lower surface of last moushroom valve and axle links, the both sides that the fan-shaped eccentric runner of last moushroom valve and counterweight lay respectively at axle, outer wall is processed with piston rod in the housing lower end, the bottom of piston rod is processed with the piston rod inlet, the side of piston rod is processed with the pressure relief vent that communicates with annular space, the lower wall valve surface is processed with runner, inside is processed with pod apertures, the inlet of pod apertures is arranged on down the upper surface of moushroom valve, outlet is arranged on down the side of moushroom valve, to descend the moushroom valve housing lower end of packing into, make the pod apertures outlet of its side relative with the piston rod inlet, and it is fixing, then inner core is fixed in the housing, last moushroom valve is relative with following moushroom valve, piston rod baffle plate and piston are equipped, the piston rod of packing into together then, and fix with housing, upper end at housing links by crossover sub and drill string, leave the gap between the inwall of counterweight and inner core, the two ends of housing are processed with screw thread, through hole is processed at the center, the quantity of pod apertures is identical on piston rod and the following moushroom valve, evenly distribute around the housing axle center and the lower wall valve shaft heart respectively, can process the release through hole that leads to annular space on the piston, if well run-off the straight, counterweight will be under himself action of gravity, the last moushroom valve that drives the axle lower end rotates around the center of axle, because bearing is equipped with at the two ends of axle, when housing rotated, counterweight can be under the effect of himself gravity, be stabilized in the low limit of inclined borehole, and do not rotate with housing and inner core, because go up the both sides that fan-shaped eccentric runner on the moushroom valve and counterweight lay respectively at axle, at this moment go up the flash that fan-shaped eccentric runner on the moushroom valve will be positioned at inclined borehole, housing drives down, and moushroom valve rotates, when the fan-shaped eccentric runner on the last moushroom valve when pod apertures on the following moushroom valve overlaps, drilling fluid passes through crossover sub, annular space between inner walls and inner core are outer, fan-shaped eccentric runner on the last moushroom valve, pod apertures on the following moushroom valve, the piston inlet enters piston rod, pressure relief vent through the piston rod side flows to annular space, because the pressure relief vent diameter is less, drilling fluid can form bigger pressure and fall the inner face that acts on piston through out-of-date in piston rod, piston is pushed to the flash borehole wall of inclined borehole, the reaction force of the borehole wall makes drill bit increase in the cutting output on low limit, and housing drives moushroom valve rotation down, when the fan-shaped eccentric runner on pod apertures on the moushroom valve and the last moushroom valve staggers instantly, drilling liquid flow is closed to the passage of annular space, in piston rod, can not form the pressure that driven plunger relies on the borehole wall and fall, thus drill bit the cutting output with exterior domain can not increase on the low limit of well, so move in circles, hole deviation is responded in good time, the piston backup borehole wall forms the lateral force of pointing to the low limit of well, makes drill bit increase in the cutting output on low limit, and hole deviation reduces gradually, and tend towards stability, the precision of hole deviation induction is by adjusting the quality of counterweight, the distance at counterweight center of gravity and axle center, parameters such as the processing of part and installation accuracy obtain, and the efficient of revising hole deviation is by adjusting the drilling well discharge capacity, the parameters such as size of pressure relief vent and piston obtain.
The present invention is based on the analysis of prior art state of development and hole deviation genesis mechanism, creep into active for satisfying straight well, tiltedly anti-in good time, beat and wait actual demand to design soon, the present invention is when the drilling tool rotary drilling, automatically respond to hole deviation, and carry out automatic well straightening (need not slide and creep into), thereby can reduce friction power and resistance, make that the pressure of the drill and torque transfer are more effective, make well more level and smooth simultaneously, reduce the hole cleaning problem, reduce the bit freezing risk, importantly can effectively liberate the pressure of the drill, normally creep into, improve drilling speed to greatest extent, the present invention has simple in structure, easy to use, safe and reliable, press consumption low, do not influence drilling tool structure, be applicable to multiple offshore boring island, characteristics such as the cost of processing and manufacturing and working service is lower are for improving the straight well bit speed, reduce production costs and have important and practical meanings.
Description of drawings
A kind of mechanical automatic vertical drilling tool schematic diagram of Fig. 1
1. crossover sub; 2. flow guiding head; 3. bearing; 4. counterweight; 5. axle; 6. inner core; 7. inner core baffle plate; 8. go up moushroom valve; 9. descend moushroom valve; 10. housing; 11. pod apertures; 12. fan-shaped eccentric runner; 13. piston rod baffle plate; 14. pressure relief vent; 15. piston; 16. piston rod inlet; 17. piston rod
The specific embodiment
Now the invention will be further described in conjunction with Figure of description.
When adopting the present invention to carry out the straight well wellbore construction, bearing [3] is contained in the two ends of axle [5], counterweight [4] is fixed on a side of axle [5], between the bearing [3], then with axle [5], bearing [3] and counterweight [4] inner core [6] of packing into together, flow guiding head [2] is fixed on inner core [6] upper end, inner core baffle plate [7] is enclosed within the lower end of axle [5], and it is fixing with inner core [6], last moushroom valve [8] links with the lower surface of axle [5], the fan-shaped eccentric runner [12] of last moushroom valve [8] and counterweight [4] lay respectively at the both sides of axle [5], outer wall is processed with piston rod [17] in housing [10] lower end, the bottom of piston rod [17] is processed with piston rod inlet [16], the side of piston rod [17] is processed with the pressure relief vent [14] that communicates with annular space, following moushroom valve [9] Surface Machining has runner, inside is processed with pod apertures [11], the inlet of pod apertures [11] is arranged on down the upper surface of moushroom valve [9], outlet is arranged on down the side of moushroom valve [9], to descend moushroom valve [9] housing [10] lower end of packing into, make pod apertures [11] outlet of its side relative with piston rod inlet [16], and it is fixing, then inner core [6] is fixed in the housing [10], last moushroom valve [8] is relative with following moushroom valve [9], piston rod baffle plate [13] is equipped with piston [15], the piston rod [17] of packing into together then, and it is fixing with housing [10], upper end at housing [10] links by crossover sub [1] and drill string, leave the gap between the inwall of counterweight [4] and inner core [6], the two ends of housing [10] are processed with screw thread, through hole is processed at the center, piston rod [17] is identical with the quantity that following moushroom valve [9] is gone up pod apertures [11], evenly distribute around housing [10] axle center and following moushroom valve [9] axle center respectively, can process the release through hole that leads to annular space on the piston [15].
When adopting the present invention to carry out the straight well wellbore construction, if well run-off the straight, counterweight [4] will be under himself action of gravity, the last moushroom valve [8] that drives axle [5] lower end rotates around the center of axle [5], because bearing [3] is equipped with at the two ends of axle [5], when housing [10] rotates, counterweight [4] is understood under the effect of himself gravity, be stabilized in the low limit of inclined borehole, and do not rotate with housing [10] and inner core [6], because fan-shaped eccentric runner [12] on the last moushroom valve [8] and counterweight [4] lay respectively at the both sides of axle [5], at this moment go up the flash that fan-shaped eccentric runner [12] on the moushroom valve [8] will be positioned at inclined borehole, housing [10] drives down, and moushroom valve [9] rotates, pod apertures [11] on the fan-shaped eccentric runner [12] on the last moushroom valve [8] and following moushroom valve [9] is when overlapping, drilling fluid is by crossover sub [1], annular space between housing [10] inwall and inner core [6] are outer, fan-shaped eccentric runner [12] on the last moushroom valve [8], pod apertures [11] on the following moushroom valve [9], the piston inlet, enter piston rod [17], pressure relief vent [14] through piston rod [17] side flows to annular space, because pressure relief vent [14] diameter is less, drilling fluid is through out-of-date, can in piston rod [17], form bigger pressure and fall the inner face that acts on piston [15], piston [15] is pushed to the flash borehole wall of inclined borehole, the reaction force of the borehole wall makes drill bit increase in the cutting output on low limit, housing [10] drives down, and moushroom valve [9] rotates, instantly the fan-shaped eccentric runner [12] on pod apertures [11] on the moushroom valve [9] and the last moushroom valve [8] is when staggering, drilling liquid flow is closed to the passage of annular space, can not form the pressure that driven plunger [15] relies on the borehole wall in piston rod [17] falls, therefore the cutting output with exterior domain can not increase drill bit on the low limit of well, so move in circles, hole deviation is responded in good time, piston [15] the backup borehole wall forms the lateral force of pointing to the low limit of well, make drill bit increase in the cutting output on low limit, hole deviation reduces gradually, and tend towards stability, the precision of hole deviation induction is by adjusting the quality of counterweight [4], the distance at counterweight [4] center of gravity and axle [5] center, parameters such as the processing of part and installation accuracy obtain, and the efficient of revising hole deviation is by adjusting the drilling well discharge capacity, the parameters such as size of pressure relief vent [14] and piston [15] obtain.
Claims (2)
1. mechanical automatic vertical drilling tool, it comprises crossover sub, flow guiding head, bearing, counterweight, axle, inner core, the inner core baffle plate, last moushroom valve, following moushroom valve, housing, piston rod baffle plate and piston, it is characterized in that bearing [3] is contained in the two ends of axle [5], counterweight [4] is fixed on a side of axle [5], between the bearing [3], then with axle [5], bearing [3] and counterweight [4] inner core [6] of packing into together, flow guiding head [2] is fixed on inner core [6] upper end, inner core baffle plate [7] is enclosed within the lower end of axle [5], and it is fixing with inner core [6], last moushroom valve [8] links with the lower surface of axle [5], the fan-shaped eccentric runner [12] of last moushroom valve [8] and counterweight [4] lay respectively at the both sides of axle [5], outer wall is processed with piston rod [17] in housing [10] lower end, the bottom of piston rod [17] is processed with piston rod inlet [16], the side of piston rod [17] is processed with the pressure relief vent [14] that communicates with annular space, following moushroom valve [9] Surface Machining has runner, inside is processed with pod apertures [11], the inlet of pod apertures [11] is arranged on down the upper surface of moushroom valve [9], outlet is arranged on down the side of moushroom valve [9], to descend moushroom valve [9] housing [10] lower end of packing into, make pod apertures [11] outlet of its side relative with piston rod inlet [16], and it is fixing, then inner core [6] is fixed in the housing [10], last moushroom valve [8] is relative with following moushroom valve [9], piston rod baffle plate [13] is equipped with piston [15], the piston rod [17] of packing into together then, and fixing with housing [10], link by crossover sub [1] and drill string in the upper end of housing [10].
2. a kind of mechanical automatic vertical drilling tool according to claim 1, it is characterized in that leaving the gap between the inwall of counterweight [4] and inner core [6], the two ends of housing [10] are processed with screw thread, through hole is processed at the center, piston rod [17] is identical with the quantity that following moushroom valve [9] is gone up pod apertures [11], evenly distribute around housing [10] axle center and following moushroom valve [9] axle center respectively, can process the release through hole that leads to annular space on the piston [15].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100432379A CN100378289C (en) | 2005-04-14 | 2005-04-14 | Mechanical automatic vertical drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100432379A CN100378289C (en) | 2005-04-14 | 2005-04-14 | Mechanical automatic vertical drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676862A true CN1676862A (en) | 2005-10-05 |
| CN100378289C CN100378289C (en) | 2008-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100432379A Expired - Fee Related CN100378289C (en) | 2005-04-14 | 2005-04-14 | Mechanical automatic vertical drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100378289C (en) |
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| CN101899970A (en) * | 2010-08-10 | 2010-12-01 | 哈尔滨工业大学 | Working parameter testing system of vertical drilling tool and working parameter testing method thereof |
| CN102383729A (en) * | 2011-07-21 | 2012-03-21 | 中国海洋石油总公司 | Slurry power bidirectional control hydraulic system for drilling and operation method thereof |
| CN101037927B (en) * | 2007-04-26 | 2012-07-04 | 倪红坚 | Rotary pushing type guiding drilling tool |
| CN102852459A (en) * | 2011-06-28 | 2013-01-02 | 中国石油化工股份有限公司 | Automatic vertical drilling tool on basis of eccentric divided gas dynamics |
| CN103835649A (en) * | 2014-04-01 | 2014-06-04 | 中国石油大学(华东) | Well drilling device capable of reinforcing well wall |
| CN104165051A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Well hole high-low side identification mechanism for automatic vertical drilling tool |
| CN104343389A (en) * | 2014-09-02 | 2015-02-11 | 天津大学 | Directional rotating guide drilling tool |
| CN104563867A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Gravity control type rotary steering tool |
| CN104563869A (en) * | 2015-01-08 | 2015-04-29 | 宝鸡石油机械有限责任公司 | Performing mechanism for automatic vertical drilling tool |
| CN105134079A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static pushing-leaning automatic vertical drilling system |
| CN105134078A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static push-the-bit automatic vertical drilling system under control of disc valve |
| CN106437517A (en) * | 2016-11-30 | 2017-02-22 | 中石化石油工程技术服务有限公司 | Low-edge constant jet anti-inclination drilling tool |
| CN107780835A (en) * | 2017-10-30 | 2018-03-09 | 裴绪建 | A kind of machine automatization vertical drilling tool |
| CN108278083A (en) * | 2018-01-24 | 2018-07-13 | 西南石油大学 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
| CN108533250A (en) * | 2018-06-13 | 2018-09-14 | 西安奥瑞普瑞电子科技有限公司 | A kind of low side measuring device and its measurement method for directional survey |
| CN109424329A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of mud flow rate distributor |
| CN109723383A (en) * | 2017-10-30 | 2019-05-07 | 裴绪建 | A kind of hydraulic automatic vertical drilling tool |
| CN110107225A (en) * | 2019-06-18 | 2019-08-09 | 中国地质科学院 | A kind of directional type automatic vertical steering drilling tool |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN113756788A (en) * | 2021-10-18 | 2021-12-07 | 中国地质大学（北京） | Mechanical type is along with boring well deviation measuring apparatu |
| CN114427433A (en) * | 2020-09-15 | 2022-05-03 | 中国石油化工股份有限公司 | Downhole tool face measuring tool based on mechanical pressure regulation |
| CN115492523A (en) * | 2022-10-20 | 2022-12-20 | 中国地质科学院 | Full-mechanical rotary steering drilling tool |
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| CN2784570Y (en) * | 2005-04-14 | 2006-05-31 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
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| CN101037927B (en) * | 2007-04-26 | 2012-07-04 | 倪红坚 | Rotary pushing type guiding drilling tool |
| CN101899970B (en) * | 2010-08-10 | 2013-01-16 | 哈尔滨工业大学 | Working parameter testing system of vertical drilling tool and working parameter testing method thereof |
| CN101899970A (en) * | 2010-08-10 | 2010-12-01 | 哈尔滨工业大学 | Working parameter testing system of vertical drilling tool and working parameter testing method thereof |
| CN102852459B (en) * | 2011-06-28 | 2016-01-13 | 中国石油化工股份有限公司 | A kind of Laterality flow-dividing type pneumodynamics automatic vertical drilling tool |
| CN102852459A (en) * | 2011-06-28 | 2013-01-02 | 中国石油化工股份有限公司 | Automatic vertical drilling tool on basis of eccentric divided gas dynamics |
| CN102383729A (en) * | 2011-07-21 | 2012-03-21 | 中国海洋石油总公司 | Slurry power bidirectional control hydraulic system for drilling and operation method thereof |
| CN102383729B (en) * | 2011-07-21 | 2014-01-29 | 中国海洋石油总公司 | Slurry power bidirectional control hydraulic system for drilling and operation method thereof |
| CN104165051A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Well hole high-low side identification mechanism for automatic vertical drilling tool |
| CN104563867A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Gravity control type rotary steering tool |
| CN103835649A (en) * | 2014-04-01 | 2014-06-04 | 中国石油大学(华东) | Well drilling device capable of reinforcing well wall |
| CN104343389A (en) * | 2014-09-02 | 2015-02-11 | 天津大学 | Directional rotating guide drilling tool |
| CN104563869A (en) * | 2015-01-08 | 2015-04-29 | 宝鸡石油机械有限责任公司 | Performing mechanism for automatic vertical drilling tool |
| CN105134078B (en) * | 2015-09-18 | 2018-01-30 | 中国地质大学（北京） | A kind of lower mechanical static backup automatic vertical drilling system of moushroom valve control |
| CN105134079B (en) * | 2015-09-18 | 2018-01-23 | 中国地质大学（北京） | A kind of mechanical static backup automatic vertical drilling system |
| CN105134079A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static pushing-leaning automatic vertical drilling system |
| CN105134078A (en) * | 2015-09-18 | 2015-12-09 | 中国地质大学（北京） | Mechanical static push-the-bit automatic vertical drilling system under control of disc valve |
| CN106437517B (en) * | 2016-11-30 | 2020-10-09 | 中石化石油工程技术服务有限公司 | Low-edge constant jet anti-inclination drilling tool |
| CN106437517A (en) * | 2016-11-30 | 2017-02-22 | 中石化石油工程技术服务有限公司 | Low-edge constant jet anti-inclination drilling tool |
| CN109424329B (en) * | 2017-08-30 | 2021-12-28 | 中国石油化工股份有限公司 | Drilling fluid flow distribution device |
| CN109424329A (en) * | 2017-08-30 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of mud flow rate distributor |
| CN107780835A (en) * | 2017-10-30 | 2018-03-09 | 裴绪建 | A kind of machine automatization vertical drilling tool |
| CN109723383A (en) * | 2017-10-30 | 2019-05-07 | 裴绪建 | A kind of hydraulic automatic vertical drilling tool |
| CN108278083A (en) * | 2018-01-24 | 2018-07-13 | 西南石油大学 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
| CN108278083B (en) * | 2018-01-24 | 2023-08-01 | 西南石油大学 | Downhole tool for realizing automatic vertical drilling by utilizing cam four-bar mechanism |
| CN108533250A (en) * | 2018-06-13 | 2018-09-14 | 西安奥瑞普瑞电子科技有限公司 | A kind of low side measuring device and its measurement method for directional survey |
| CN110107225A (en) * | 2019-06-18 | 2019-08-09 | 中国地质科学院 | A kind of directional type automatic vertical steering drilling tool |
| CN110107225B (en) * | 2019-06-18 | 2024-05-28 | 中国地质科学院 | Directional automatic vertical guiding drilling tool |
| CN114427433A (en) * | 2020-09-15 | 2022-05-03 | 中国石油化工股份有限公司 | Downhole tool face measuring tool based on mechanical pressure regulation |
| CN114427433B (en) * | 2020-09-15 | 2024-04-26 | 中国石油化工股份有限公司 | Underground tool face measuring tool based on mechanical pressure regulation |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN112610158B (en) * | 2020-12-14 | 2022-09-13 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN113756788A (en) * | 2021-10-18 | 2021-12-07 | 中国地质大学（北京） | Mechanical type is along with boring well deviation measuring apparatu |
| CN115492523A (en) * | 2022-10-20 | 2022-12-20 | 中国地质科学院 | Full-mechanical rotary steering drilling tool |
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