CN109098660A - A kind of modulation pushing type and eccentric hoop directional type mixed type guide drilling tool - Google Patents
A kind of modulation pushing type and eccentric hoop directional type mixed type guide drilling tool Download PDFInfo
- Publication number
- CN109098660A CN109098660A CN201810911745.1A CN201810911745A CN109098660A CN 109098660 A CN109098660 A CN 109098660A CN 201810911745 A CN201810911745 A CN 201810911745A CN 109098660 A CN109098660 A CN 109098660A
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- control shaft
- eccentric hoop
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- modulation
- drill collar
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 8
- 238000005520 cutting process Methods 0.000 abstract description 4
- 210000002445 nipple Anatomy 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000013475 authorization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of modulation pushing type and eccentric hoop directional type mixed type steering tool, including modulation two parts such as pushing type guiding drilling well pipe nipple and eccentric hoop directional type tool pipe nipple are formed；In use, backup floor is always in the identical angle position backup borehole wall, accumulative effect is the wellbore that can cause constant slope increment, this is " increasing hole angle " or " deflecting " drilling；When eccentric hoop is static relative to the earth, eccentric hoop backup control shaft, control shaft axial line is set to keep the state for deviateing drill collar center line, control shaft passes through universal joint fulcrum, drive drill bit, so that drill bit is always in the identical angle position oblique cutting borehole wall, accumulative effect is the wellbore that can cause constant slope increment, is for " increasing hole angle " or " deflecting " drilling；The present invention has the advantages that rotary steering and build angle rate is high, and promotional value is high.
Description
Technical field
The invention belongs to petroleum drilling engineering fields, and in particular to a kind of modulation pushing type and eccentric hoop directional type mixed type
Steering tool.
Background technique
In order to meet Oil And Gas Exploration And Development especially Marine oil and gas resource exploitation and the complex hydrocarbon in oil field later period
The special works such as ultradeep well, high-leveled and difficult directional well, cluster well, horizontal well, extended reach well, Multilateral Wells and 3 D complex structure well are bored in hiding
The exploitation requirement of skill well, while also meeting the needs of closed loop automatic well drill development, there is an urgent need to a kind of rotations of high build angle rate to lead
To drilling tool.
Rotary steerable drilling technology not only can solve the brill that the classes complex structural well such as extended reach well faces in drilling process
The problem of well technical aspect reduces development cost, can also realize the purpose for increasing oil production rate.Rotary steerable drilling technology is
Show one of the important evidence of the drilling engineering automatic technology level height of a country or group.
Rotary steering drilling tool is the core of rotary steerable drilling system, and by the division of its working method, there are mainly four types of classes
Type: static pushing type, static directional type, dynamic pushing type and dynamic directional type etc..Pushing type rotary steering drilling tool drill bit
Lateral force it is big, build angle rate is high, but the wellbore dog-leg that rotary steering drills out is big, and track fluctuation is big, unsmooth.Directional type rotation is led
Lateral force to downhole tool drill bit is smaller, and build angle rate is lower, but the wellbore dog-leg that rotary steering drills out is small, and track is gentle.From
From the point of view of applicable cases, directional type is the development trend of rotary steerable drilling system.Presently, external more mature rotation is led
To drilling tool mainly with the Auto Track series of Baker Hughes, the PowerDrive system of Schlumberger company
Column, the Geo-Pilot series of Halliburton company are most representative.The AutoTrack of Baker Hughes Inc is typically to push away
Reclining tool, " drive shaft-not rotary sleeve " structure by control not rotary sleeve lifting force block act on the borehole wall resultant force it is big
Small and direction carries out guiding operation (referring to patent document W02008101020A, US2013256034A etc.).And typical drill bit
The Geo-Pilot (referring to patent document W02014055068A) of directional type rotary steerable tool such as Halliburton Company, Wade good fortune
The Revolution (referring to patent document W02008120025A) of the company and Power Drive Xceed of Schlumberger
(referring to patent document N020061119A) etc..Wherein Geo-Pilot and Revolution is static directional type rotary steering work
Tool, the deflecting ability of tool biases displacement by adjusting Underwell guide tool and realizes, and continuously adjustable.And " full rotation " structure
Power Drive Xceed use fixed guide bias structure, build angle rate by alternately variation guiding and hold angle bore
Progressive die formula is realized, is controlled by conducting under ground system to parameter (tool-face and guiding ratio).
No matter pushing type or directional type all have the advantages that respective and deficiency, the structure of single mode cannot all expire very well
The shortcomings that drilling well of the high deflecting of foot requires, therefore the combination of the two can effectively avoid single form, hybrid combination become existing
Trend.Domestic research in this respect is started late, and is not developed also and is capable of the high deflecting rotation of successful commercialization application and leads
To drilling tool." dynamic guiding type rotary steering drilling tool and its investigating method " (Granted publication of peak Geng Yan et al. invention
Number 104832088 B of CN), deflectings are carried out using double eccentric ring mechanisms, structure is complicated；A kind of bright " the wheel of Tang Xue equality human hair
Turn directional type steering tool and guidance method " (104499940 B of Authorization Notice No.), for the Power of Schlumberger
Drive Xceed full rotation directional type steering tool there are the shortcomings that, propose a kind of improved full rotation directional type guiding work
Tool；" static guiding type rotary steering drilling tool " (104775757 B of Authorization Notice No. CN) of Zhang Xiaoguang et al. invention,
Upper part is non-rotary static structure；" guiding type rotary steering drilling tool " (Granted publication of Li Hongtao et al. invention
Number 104343389 B of CN), the biasing of mandrel, and then deflecting are realized using integrated hydraulic cylinder, which only includes that drill bit is directed toward
Formula generates deflecting；" backup directional type rotary steerable drilling device " (103437704 B of Authorization Notice No. CN) of plan invention is opened,
Using stabilizer and hydraulic system connection structure, stabilizer is not rotating device, and only drill bit directed section progress deflecting.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention patent provides a kind of modulation pushing type and eccentric hoop is directed toward
Formula mixed type steering tool, can be realized rotary steering and build angle rate is high, and promotional value is high.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of modulation pushing type and eccentric hoop directional type mixed type steering tool, including drill collar 27 are provided in drill collar 27
First observing and controlling electronic compartment 3 is respectively arranged with the first turbogenerator 1 and turbine torque motor 2, whirlpool on first observing and controlling electronic compartment 3
The output end for taking turns torque motor 2 connects upper moushroom valve 4 by control main shaft 31；One end of the other end of upper moushroom valve 4 and lower moushroom valve 5,
It is in close contact；The other end of lower moushroom valve 5 is connected with drilling fluid runner 6, and drilling fluid runner 6 connects backup floor 7, backup floor 7
Setting is scalable on 27 surface of drill collar；The lower section of drilling fluid runner 6 is provided with control shaft 26, and one end of control shaft 26 is provided with
For the second turbogenerator 10 of power supply, eccentric hoop 9 is arranged in control shaft 26, eccentric hoop 9 is solid by inside and outside fulcrum roller 11
It being scheduled between drill collar 27 and control shaft 26, eccentric hoop 9 connects turbine brake cylinder 15 by turbine-eccentric hoop flexibly jointed chain cylinder 13,
Water turbine 12 is provided between turbine brake cylinder 15 and control shaft 26, turbine brake 15 outer surface of cylinder connects indeformable taper and rubs
Cylinder 16 is wiped, the deformable conical friction cylinder 17 of setting in indeformable conical friction cylinder 16, the deformable setting of conical friction cylinder 17 is being controlled
On axis 26 processed, it is arranged with push-tight sleeve 14 in the control shaft 26 of deformable 17 lower section of conical friction cylinder, push-tight sleeve 14 passes through liquid
Device for pressing cylinder liner 18 connects micro- hydraulic system 19, and micro- hydraulic system 19 is arranged in the second observing and controlling electronic compartment 20, the second observing and controlling electronic compartment
20 are arranged in control shaft 26, and control shaft 26 is connected in drill collar 27 by universal shaft 21, and 26 other end of control shaft passes through flexibility
Reducer union 22 connects drill bit 23, and flexible reducing joint 22 is arranged in 27 lower part of drill collar.
Further, 27 top of drill collar is provided with centralizer.
Further, the first observing and controlling electronic compartment 3 is fixed on brill by upper spring bearing 24 and lower supporting bearing 25
Quickly in 27.
Further, flexible resistance sand ring 8 is arranged in the control shaft 26；Flexibility resistance sand ring 8 is arranged in the second turbine
Between generator 10 and eccentric hoop 9.
Further, the flexible reducing joint 22 is arranged in drill collar 27 by external screw thread 29, and control shaft 26 passes through
Internal screw thread 28 connects flexible reducing joint 22, and drill bit connects control shaft 26 by screw thread 30.
Further, there are an eccentricities between the eccentric hoop 9 and control shaft 26.
Beneficial effects of the present invention:
For the present invention using backup floor 7 always in the identical angle position backup borehole wall, accumulative effect is can to have caused
The wellbore of constant slope increment, this is " increasing hole angle " or " deflecting " drilling；When eccentric hoop 9 is static relative to the earth, 9 backup of eccentric hoop
Control shaft 26 makes 26 axial line of control shaft keep the state for deviateing drill collar center line, and control shaft passes through universal fulcrum, drives and bores
Head, so that drill bit is always in the identical angle position oblique cutting borehole wall, accumulative effect is can to have caused constant slope increment
Wellbore, be for " increasing hole angle " or " deflecting " drilling.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the flexible variable diameter short circuit head of the present invention, control shaft, the connection schematic diagram of drill bit.
Fig. 3 is that present invention is generally directed to formula eccentric hoop cross-sectional views.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Shown in referring to Fig.1, a kind of modulation pushing type and eccentric hoop directional type mixed type steering tool, including drill collar 27, brill
Quickly 27 tops are provided with centralizer, and the first observing and controlling electronic compartment 3 is provided in drill collar 27, is respectively set on the first observing and controlling electronic compartment 3
There are the first turbogenerator 1 and turbine torque motor 2, the output end of turbine torque motor 2 connects upper disk by control main shaft 31
Valve 4；One end of the other end of upper moushroom valve 4 and lower moushroom valve 5 is in close contact；The other end of lower moushroom valve 5 is connected with drilling fluid runner 6,
Drilling fluid runner 6 connects backup floor 7, and the setting of backup floor 7 is scalable on 27 surface of drill collar；The lower section of drilling fluid runner 6 is set
It is equipped with control shaft 26, one end of control shaft 26 is provided with the second turbogenerator 10 for power supply, in the control shaft 26
It is arranged flexible resistance sand ring 8；Flexibility resistance sand ring 8 is arranged between the second turbogenerator 10 and eccentric hoop 9；It is covered in control shaft 26
If eccentric hoop 9, eccentric hoop 9 is fixed between drill collar 27 and control shaft 26 by inside and outside fulcrum roller 11, and eccentric hoop 9 passes through whirlpool
Wheel-eccentric hoop flexibly jointed chain cylinder 13 connects turbine brake cylinder 15, is provided with waterpower whirlpool between turbine brake cylinder 15 and control shaft 26
Wheel 12, turbine brake 15 outer surface of cylinder connect indeformable conical friction cylinder 16, and setting is deformable in indeformable conical friction cylinder 16
Conical friction cylinder 17, deformable conical friction cylinder 17 are arranged in control shaft 26, the control of deformable 17 lower section of conical friction cylinder
Push-tight sleeve 14 is arranged on axis 26, push-tight sleeve 14 connects micro- hydraulic system 19, micro- hydraulic system 19 by hydraulic cylinder 18
It is arranged in the second observing and controlling electronic compartment 20, the second observing and controlling electronic compartment 20 is arranged in control shaft 26, and control shaft 26 passes through universal shaft
21 are connected in drill collar 27, and 26 other end of control shaft passes through flexible reducing joint 22 and connects drill bit 23, and flexible reducing joint 22 is set
It sets in 27 lower part of drill collar.
Referring to shown in Fig. 2, the flexible reducing joint 22 is arranged in drill collar 27 by external screw thread 29, and control shaft 26 is logical
It crosses internal screw thread 28 and connects flexible reducing joint 22, drill bit connects control shaft 26 by screw thread 30.
Referring to shown in Fig. 3, there are an eccentricities between the eccentric hoop 9 and control shaft 26.
The working principle of the invention:
Power is provided by the first turbogenerator 1, the first observing and controlling electronic compartment 3 is completed to the acquisition process of nearly drill bit information simultaneously
Corresponding control signal is generated, so that turbine torque motor 2 be driven to change opplied moment, the upper moushroom valve 4 that control main shaft 31 connects
Stablize or moves；When all opplied moments balance when, will it is stable relative to the earth i.e. not make rotating motion, to make to pass through lower wall
The mud of valve 5 and drilling fluid runner 6 pushes backup floor 7 always in the stretching of the same position, the backup borehole wall, to reach deflecting
Purpose.And when stabilized platform at the uniform velocity rotates relative to the earth, the uniformly beating, the backup borehole wall of backup floor 7, accumulative effect is can
It is for " hold angle " drilling to keep wellbore gradient to stablize；
Drill bit 23 and flexible variable diameter short circuit head 22 connect in eccentric hoop directional type pipe nipple, and drill bit passes through screw thread 30 and control shaft
26 connections, and deflect and rotate with control shaft 26, and be connected to the drilling fluid runner of control shaft；Flexible variable diameter short circuit head 22 passes through outer
Screw thread 29 is connected with drill collar 27, while being connect by internal screw thread 28 with control shaft 26, and the turning moment of drill collar 27 is passed through control
Axis 26 processed passes to drill bit 23, and drill bit 23 is driven to rotate fractured rock；When control shaft 26 deflects, can plastic deformation, with suitable
Answer the deflection of control shaft.When eccentric hoop 9 is static relative to the earth, 9 backup control shaft 26 of eccentric hoop protects 26 axial line of control shaft
The state for deviateing 27 center line of drill collar is held, control shaft 26 passes through universal fulcrum, drill bit 23 is driven, so that drill bit 23 is always identical
The angle position oblique cutting borehole wall, accumulative effect are the wellbores that can cause constant slope increment, are for " increasing hole angle " or " to make
Tiltedly " creep into；When eccentric hoop 9 at the uniform velocity rotates relative to the earth, the 23 uniform throughout oblique cutting borehole wall of drill bit, accumulative effect is can
To keep wellbore central stabilizer, but there is certain reaming hole effect, is for " hold angle " drilling.
Claims (6)
1. a kind of modulation pushing type and eccentric hoop directional type mixed type steering tool, which is characterized in that including drill collar (27), drill collar
(27) it is provided with the first observing and controlling electronic compartment (3) in, is respectively arranged with the first turbogenerator (1) on the first observing and controlling electronic compartment (3)
Pass through moushroom valve (4) in control main shaft (31) connection with the output end of turbine torque motor (2), turbine torque motor (2)；Upper moushroom valve
(4) one end of the other end and lower moushroom valve (5), is in close contact；The other end of lower moushroom valve (5) is connected with drilling fluid runner (6), is bored
Well liquid runner (6) connects backup floor (7), and backup floor (7) is telescopic to be arranged on drill collar (27) surface；Drilling fluid runner
(6) it being provided with below control shaft (26), one end of control shaft (26) is provided with the second turbogenerator (10) for power supply,
It is arranged in control shaft (26) eccentric hoop (9), eccentric hoop (9) is fixed on drill collar (27) and control shaft by inside and outside fulcrum roller (11)
(26) between, eccentric hoop (9) connects turbine brake cylinder (15), turbine brake cylinder by turbine-eccentric hoop flexibly jointed chain cylinder (13)
(15) it is provided between control shaft (26) water turbine (12), turbine brake cylinder (15) outer surface connects indeformable conical friction
Cylinder (16), the interior deformable conical friction cylinder (17) of setting of indeformable conical friction cylinder (16), deformable conical friction cylinder (17) set
It sets on control shaft (26), is arranged with push-tight sleeve (14) in the control shaft (26) below deformable conical friction cylinder (17), pushes away
Fixed cylinder (14) connects micro- hydraulic system (19) by hydraulic cylinder (18), and micro- hydraulic system (19) is arranged in the second observing and controlling electronics
In cabin (20), the second observing and controlling electronic compartment (20) is arranged on control shaft (26), and control shaft (26) is bored by universal shaft (21) connection
Quickly in (27), control shaft (26) other end passes through flexible reducing joint 22 and connects drill bit (23), flexible reducing joint (22) setting
In drill collar (27) lower part.
2. a kind of modulation backup examination according to claim 1 and eccentric finger ring type mixed type steering tool, which is characterized in that
Described drill collar (27) top is provided with centralizer.
3. a kind of modulation pushing type according to claim 1 and eccentric hoop directional type mixed type steering tool, feature exist
In the first observing and controlling electronic compartment (3) is fixed in drill collar (27) by upper spring bearing (24) and lower supporting bearing (25).
4. a kind of modulation pushing type according to claim 1 and eccentric hoop directional type mixed type steering tool, feature exist
In being arranged flexible resistance sand ring (8) in the control shaft (26)；Flexibility resistance sand ring (8) is arranged in the second turbogenerator (10)
Between eccentric hoop (9).
5. a kind of modulation pushing type according to claim 1 and eccentric hoop directional type mixed type steering tool, feature exist
It is arranged in drill collar (27) in the flexible reducing joint (22) by external screw thread (29), control shaft (26) passes through internal screw thread
(28) flexible reducing joint (22) are connected, drill bit passes through screw thread (30) connection control shaft (26).
6. a kind of modulation pushing type according to claim 1 and eccentric hoop directional type mixed type steering tool, feature exist
There are an eccentricities between the eccentric hoop (9) and control shaft (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911745.1A CN109098660B (en) | 2018-08-10 | 2018-08-10 | Modulation push type and eccentric ring pointing type mixed type guiding drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911745.1A CN109098660B (en) | 2018-08-10 | 2018-08-10 | Modulation push type and eccentric ring pointing type mixed type guiding drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109098660A true CN109098660A (en) | 2018-12-28 |
| CN109098660B CN109098660B (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810911745.1A Active CN109098660B (en) | 2018-08-10 | 2018-08-10 | Modulation push type and eccentric ring pointing type mixed type guiding drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098660B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185393A (en) * | 2019-05-28 | 2019-08-30 | 西南石油大学 | The drilling tool of rotary steering function is realized using change gear train |
| CN111287659A (en) * | 2020-03-30 | 2020-06-16 | 西安石油大学 | Build-up rate adjusting method based on full-rotation directional type guiding 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 |
| CN112647847A (en) * | 2020-12-30 | 2021-04-13 | 中国科学院地质与地球物理研究所 | Rotary steerable drilling system and method of controlling the same |
| CN112855024A (en) * | 2019-11-27 | 2021-05-28 | 万晓跃 | Rotary guide drilling tool |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185393A (en) * | 2019-05-28 | 2019-08-30 | 西南石油大学 | The drilling tool of rotary steering function is realized using change gear train |
| CN112855024A (en) * | 2019-11-27 | 2021-05-28 | 万晓跃 | Rotary guide drilling tool |
| CN112855024B (en) * | 2019-11-27 | 2023-09-26 | 万晓跃 | Rotary steering drilling tool |
| CN111287659A (en) * | 2020-03-30 | 2020-06-16 | 西安石油大学 | Build-up rate adjusting method based on full-rotation directional type guiding 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 |
| CN112610158B (en) * | 2020-12-14 | 2022-09-13 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN112647847A (en) * | 2020-12-30 | 2021-04-13 | 中国科学院地质与地球物理研究所 | Rotary steerable drilling system and method of controlling the same |
| CN112647847B (en) * | 2020-12-30 | 2021-10-29 | 中国科学院地质与地球物理研究所 | Rotary steerable drilling system and method of controlling the same |
| WO2022141753A1 (en) * | 2020-12-30 | 2022-07-07 | 中国科学院地质与地球物理研究所 | Rotary steerable drilling system and control method therefor |
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