CN109098660B - Modulation push type and eccentric ring pointing type mixed type guiding drilling tool - Google Patents
Modulation push type and eccentric ring pointing type mixed type guiding drilling tool Download PDFInfo
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- CN109098660B CN109098660B CN201810911745.1A CN201810911745A CN109098660B CN 109098660 B CN109098660 B CN 109098660B CN 201810911745 A CN201810911745 A CN 201810911745A CN 109098660 B CN109098660 B CN 109098660B
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- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000005259 measurement Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- 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
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- 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
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- 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
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- 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
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A modulation push type and eccentric ring pointing type mixed type guiding tool comprises a modulation push type guiding drilling short section, an eccentric ring pointing type tool short section and the like; when the drilling tool is used, the pushing rib plates always push against the well wall at the same angle position, and the cumulative effect is that a well bore with certain inclination increment can be formed, so that the drilling tool is a 'deflection increasing' or 'deflection' drilling tool; when the eccentric ring is static relative to the ground, the eccentric ring pushes against the control shaft, so that the axis of the control shaft keeps a state of deviating from the central line of the drill collar, the control shaft drives the drill bit through the universal joint fulcrum, and the drill bit always cuts the well wall in an inclined manner at the same angle position, and the cumulative effect of the method is that a well with certain inclination increment can be caused, and the well is drilled in an inclined manner or an inclined manner; the invention has the advantages of rotary guiding and high build rate, and has high popularization value.
Description
Technical Field
The invention belongs to the field of petroleum drilling engineering, and particularly relates to a modulation push type and eccentric ring pointing type mixed type guiding tool.
Background
In order to meet the development requirements of exploration and development of oil and gas resources, particularly ocean oil and gas resources, drilling of special process wells such as ultra-deep wells, highly difficult directional wells, cluster wells, horizontal wells, extended reach wells, branch wells, three-dimensional complex structure wells and the like in complex oil and gas reservoirs in the later period of an oil field, and simultaneously meet the development requirements of closed-loop automatic drilling, a rotary steering drilling tool with a high build slope is urgently needed.
The rotary steering drilling technology can solve the difficult problems in the drilling technology of wells with complex structures such as extended reach wells and the like in the drilling process, reduce the development cost and achieve the purpose of increasing the petroleum yield. The rotary steerable drilling technology is one of the important bases for demonstrating the high and low level of automation technology of drilling engineering in a country or a group.
The rotary steering drilling tool is the core of a rotary steering drilling system, and is divided into four types according to the working mode: static push type, static pointing type, dynamic push type, dynamic pointing type, and the like. The drill bit of the push-type rotary steering drilling tool has large lateral force and high build rate, but the dog leg of a borehole drilled by rotary steering is large, the track fluctuation is large, and the borehole is not smooth. The lateral force of the drill bit of the directional rotary steering downhole tool is small, the build rate is low, but the dogleg of a borehole drilled by the rotary steering is small, and the track is smooth. From the application point of view, the directional type is the development trend of the rotary guiding drilling system. Currently, the more mature rotary steerable drilling tools in foreign countries are most represented by Auto Track series of Baker Hughes, Powerdrive series of Schlumberger, and Geo-Pilot series of Halliburton. The autocrack of beckhos is a typical push-type tool, and the "drive shaft-nonrotating sleeve" structure of the tool performs a guiding operation by controlling the magnitude and direction of a resultant force acting on a borehole wall by a thrust block on a nonrotating outer sleeve (see patent documents W02008101020A, US2013256034A, and the like). Typical drill point rotary steerable tools include Geo-Pilot (see patent document W02014055068A) by harebilton, revolute (see patent document W02008120025A) by wedeford, and Power Drive Xceed (see patent document N020061119A) by schlumberger. Wherein Geo-Pilot and Revolition are static directional rotary steering tools, the deflecting capability of the tool is realized by adjusting the offset displacement of the downhole steering tool, and the deflecting capability can be continuously adjusted. The Power Drive Xended of the 'full rotation' structure adopts a fixed guide biasing structure, the build-up rate of the structure is realized by a guide and steady-slope drilling mode which is changed alternately, and the control is carried out by depending on the conduction parameters (a tool face and a guide proportion) under a ground system.
Both push type and directional type have respective advantages and disadvantages, and a single mode structure cannot well meet the drilling requirement of high deflection, so that the combination of the two can effectively avoid the disadvantages of the single mode, and a mixed structure becomes the current trend. The research in this area in China is relatively late, and a high-deflecting rotary steering drilling tool which can be successfully and commercially applied is not developed yet. The dynamic directional rotary steering drilling tool and the measurement and control method thereof (No. CN 104832088B) invented by Gunn peak and the like adopt a double eccentric ring mechanism to carry out deflection, and have complex structure; the invention relates to a full-rotation directional guide tool and a guide method (an authorization notice number 104499940B) invented by Tangxue et al, and provides an improved full-rotation directional guide tool aiming at the defects of a Powerdrive Xended full-rotation directional guide tool of the Schlumberger company; "static directional rotary steerable drilling tool" (grant publication No. CN 104775757B) invented by york et al, the upper part of which is a static structure that does not rotate; the invention discloses a directional rotary steering drilling tool (No. CN 104343389B) invented by Lihongtao and the like, which adopts an integrated hydraulic cylinder to realize the offset of a mandrel so as to perform deflection, and the invention only comprises that a drill bit generates deflection in a directional way; the pushing directional rotary steering drilling device (No. CN 103437704B) of the invention adopts a connecting structure of a stabilizer and a hydraulic system, wherein the stabilizer is a non-rotating device, and only the directional part of a drill bit is used for deflecting.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a modulation push type and eccentric ring pointing type mixed type guiding tool, which can realize rotary guiding, has high build rate and high popularization value.
In order to achieve the purpose, the invention adopts the technical scheme that:
a modulation push type and eccentric ring pointing type mixed type guiding tool comprises a drill collar 27, wherein a first measurement and control electronic cabin 3 is arranged in the drill collar 27, a first turbine generator 1 and a turbine torque motor 2 are respectively arranged on the first measurement and control electronic cabin 3, and the output end of the turbine torque motor 2 is connected with an upper disc valve 4 through a control main shaft 31; the other end of the upper disc valve 4 is tightly contacted with one end of the lower disc valve 5; the other end of the lower disc valve 5 is connected with a drilling fluid flow channel 6, the drilling fluid flow channel 6 is connected with a pushing rib plate 7, and the pushing rib plate 7 is arranged on the surface of the drill collar 27 and is telescopic; a control shaft 26 is arranged below the drilling fluid flow passage 6, one end of the control shaft 26 is provided with a second turbine generator 10 for supplying power, an eccentric ring 9 is sleeved on the control shaft 26, the eccentric ring 9 is fixed between a drill collar 27 and the control shaft 26 through an inner fulcrum bearing and an outer fulcrum bearing 11, the eccentric ring 9 is connected with a turbine brake cylinder 15 through a turbine-eccentric ring flexible coupling cylinder 13, a hydraulic turbine 12 is arranged between the turbine brake cylinder 15 and the control shaft 26, the outer surface of the turbine brake cylinder 15 is connected with a non-deformable conical friction cylinder 16, a deformable conical friction cylinder 17 is arranged in the non-deformable conical friction cylinder 16, the deformable conical friction cylinder 17 is arranged on the control shaft 26, a push sleeve 14 is sleeved on the control shaft 26 below the deformable conical friction cylinder 17, the push sleeve 14 is connected with a micro hydraulic system 19 through a hydraulic cylinder sleeve 18, the micro hydraulic system 19 is arranged in a second measurement and control electronic cabin 20, the second measurement and control electronic cabin 20 is arranged on the control, the control shaft 26 is connected in the drill collar 27 through the cardan shaft 21, the other end of the control shaft 26 penetrates through the flexible reducing joint 22 to be connected with the drill bit 23, and the flexible reducing joint 22 is arranged on the lower portion of the drill collar 27.
Further, a centralizer is arranged on the upper portion of the drill collar 27.
Further, the first measurement and control electronic cabin 3 is fixed in a drill collar 27 through an upper support bearing 24 and a lower support bearing 25.
Further, a flexible sand-blocking ring 8 is sleeved on the control shaft 26; a flexible sand trap ring 8 is arranged between the second turbine generator 10 and the eccentric ring 9.
Further, the flexible reducer 22 is disposed in a drill collar 27 through an external thread 29, the control shaft 26 is connected with the flexible reducer 22 through an internal thread 28, and the drill bit is connected with the control shaft 26 through a thread 30.
Further, an eccentricity exists between the eccentric ring 9 and the control shaft 26.
The invention has the beneficial effects that:
the invention adopts the pushing rib plates 7 to always push against the well wall at the same angle position, and the cumulative effect is that the well with certain inclination increment can be caused, which is 'increasing inclination' or 'deflecting' drilling; when the eccentric ring 9 is static relative to the ground, the eccentric ring 9 pushes against the control shaft 26, so that the axial lead of the control shaft 26 keeps a state of deviating from the central line of the drill collar, the control shaft drives the drill bit through the universal fulcrum, so that the drill bit always inclines to cut a well wall at the same angular position, and the cumulative effect is that a well hole with certain inclination increment can be caused, and drilling is performed for 'increasing inclination' or 'deflecting'.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the connection of the flexible reducing short joint, the control shaft and the drill bit of the present invention.
FIG. 3 is a sectional view of a directional eccentric ring of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the modulation push-type and eccentric ring pointing type hybrid guiding tool comprises a drill collar 27, wherein a centralizer is arranged at the upper part of the drill collar 27, a first measurement and control electronic cabin 3 is arranged in the drill collar 27, a first turbine generator 1 and a turbine torque motor 2 are respectively arranged on the first measurement and control electronic cabin 3, and the output end of the turbine torque motor 2 is connected with an upper disc valve 4 through a control main shaft 31; the other end of the upper disc valve 4 is tightly contacted with one end of the lower disc valve 5; the other end of the lower disc valve 5 is connected with a drilling fluid flow channel 6, the drilling fluid flow channel 6 is connected with a pushing rib plate 7, and the pushing rib plate 7 is arranged on the surface of the drill collar 27 and is telescopic; a control shaft 26 is arranged below the drilling fluid flow passage 6, a second turbine generator 10 for supplying power is arranged at one end of the control shaft 26, and a flexible sand prevention ring 8 is sleeved on the control shaft 26; the flexible sand-blocking ring 8 is arranged between the second turbine generator 10 and the eccentric ring 9; an eccentric ring 9 is sleeved on a control shaft 26, the eccentric ring 9 is fixed between a drill collar 27 and the control shaft 26 through an inner fulcrum bearing and an outer fulcrum bearing 11, the eccentric ring 9 is connected with a turbine brake cylinder 15 through a turbine-eccentric ring flexible coupling cylinder 13, a hydraulic turbine 12 is arranged between the turbine brake cylinder 15 and the control shaft 26, the outer surface of the turbine brake cylinder 15 is connected with an undeformed tapered friction cylinder 16, a deformable tapered friction cylinder 17 is arranged in the undeformed tapered friction cylinder 16, the deformable tapered friction cylinder 17 is arranged on the control shaft 26, a push-up sleeve 14 is sleeved on the control shaft 26 below the deformable tapered friction cylinder 17, the push-up sleeve 14 is connected with a micro hydraulic system 19 through a hydraulic cylinder sleeve 18, the micro hydraulic system 19 is arranged in a second measurement and control electronic cabin 20, the second measurement and control electronic cabin 20 is arranged on the control shaft 26, the control shaft 26 is connected in the drill collar 27 through a universal shaft 21, the other end of the control shaft 26 penetrates through a flexible, the flexible sub 22 is disposed below the drill collar 27.
Referring to FIG. 2, the flexible sub 22 is shown disposed within a drill collar 27 via external threads 29, the control shaft 26 is connected to the flexible sub 22 via internal threads 28, and the drill bit is connected to the control shaft 26 via threads 30.
Referring to fig. 3, an eccentricity exists between the eccentric ring 9 and the control shaft 26.
The working principle of the invention is as follows:
the first turbine generator 1 provides power, the first measurement and control electronic cabin 3 finishes acquisition and processing of near-bit information and generates corresponding control signals, so that the turbine torque motor 2 is driven to change the acting torque, and an upper disc valve 4 connected with a main shaft 31 is controlled to be stable or move; when all the acting moments are balanced, the acting moments are relatively earth-ground stable, namely, do not rotate, so that mud passing through the lower disc valve 5 and the drilling fluid flow channel 6 pushes the pushing rib plates 7 to extend out at the same position and push against the well wall, and the purpose of deflecting is achieved. When the stable platform rotates at a constant speed relative to the ground, the pushing rib plates 7 uniformly flap and push against the well wall, and the cumulative effect of the stable platform is that the inclination of the well can be kept stable, and the stable platform is used for 'steady-inclination' drilling;
a drill bit 23 in the eccentric ring pointing type short section is connected with a flexible reducing short joint 22, the drill bit is connected with a control shaft 26 through threads 30, deflects and rotates along with the control shaft 26, and is communicated with a drilling fluid flow channel of the control shaft; the flexible reducing short joint 22 is connected with a drill collar 27 through an external thread 29 and is connected with a control shaft 26 through an internal thread 28, so that the rotating torque of the drill collar 27 is transmitted to the drill bit 23 through the control shaft 26 to drive the drill bit 23 to rotate to crush rock; when the control shaft 26 deflects, it may flexibly deform to accommodate the deflection of the control shaft. When the eccentric ring 9 is static relative to the ground, the eccentric ring 9 pushes against the control shaft 26, so that the axial lead of the control shaft 26 keeps a state of deviating from the central line of the drill collar 27, the control shaft 26 drives the drill bit 23 through a universal fulcrum, so that the drill bit 23 always slants to cut a well wall at the same angle position, and the cumulative effect is that a well with certain inclination increment can be caused, and drilling is performed for increasing the inclination or deflecting; when the eccentric ring 9 rotates at a constant speed relative to the ground, the drill bit 23 uniformly and obliquely cuts the well wall at each position, the cumulative effect is to keep the center of the well stable, but the cumulative effect has a certain reaming effect, and the drilling is 'steady-oblique'.
Claims (6)
1. A modulation push-type and eccentric ring pointing type mixed type guiding tool is characterized by comprising a drill collar (27), wherein a first measurement and control electronic cabin (3) is arranged in the drill collar (27), a first turbine generator (1) and a turbine torque motor (2) are respectively arranged on the first measurement and control electronic cabin (3), and the output end of the turbine torque motor (2) is connected with an upper disk valve (4) through a control main shaft (31); the other end of the upper disc valve (4) is tightly contacted with one end of the lower disc valve (5); the other end of the lower disc valve (5) is connected with a drilling fluid flow channel (6), the drilling fluid flow channel (6) is connected with a pushing rib plate (7), and the pushing rib plate (7) is arranged on the surface of the drill collar (27) in a telescopic mode; a control shaft (26) is arranged below the drilling fluid flow passage (6), one end of the control shaft (26) is provided with a second turbine generator (10) for supplying power, an eccentric ring (9) is sleeved on the control shaft (26), the eccentric ring (9) is fixed between a drill collar (27) and the control shaft (26) through an inner fulcrum bearing and an outer fulcrum bearing (11), the eccentric ring (9) is connected with a turbine brake cylinder (15) through a turbine-eccentric ring flexible coupling cylinder (13), a hydraulic turbine (12) is arranged between the turbine brake cylinder (15) and the control shaft (26), the outer surface of the turbine brake cylinder (15) is connected with a non-deformable conical friction cylinder (16), a deformable conical friction cylinder (17) is arranged in the non-deformable conical friction cylinder (16), the deformable conical friction cylinder (17) is arranged on the control shaft (26), a push sleeve (14) is sleeved on the control shaft (26) below the deformable conical friction cylinder (17), the push sleeve (14) is connected with a micro-hydraulic system (19) through a hydraulic cylinder sleeve (18), the micro-hydraulic system (19) is arranged in a second measurement and control electronic cabin (20), the second measurement and control electronic cabin (20) is arranged on a control shaft (26), the control shaft (26) is connected into a drill collar (27) through a universal shaft (21), the other end of the control shaft (26) penetrates through a flexible reducing short joint (22) to be connected with a drill bit (23), and the flexible reducing short joint (22) is arranged on the lower portion of the drill collar (27).
2. The hybrid modulated push and eccentric ring pointing tool as set forth in claim 1, characterized in that a centralizer is placed on top of said drill collar (27).
3. The hybrid modulated push and eccentric ring pointing steering tool according to claim 1, characterized by the first measurement and control electronics pod (3) fixed in a drill collar (27) by means of an upper support bearing (24) and a lower support bearing (25).
4. A modulated push and eccentric ring pointing hybrid pilot tool according to claim 1, characterized in that the control shaft (26) is sleeved with a flexible sand stop ring (8); the flexible sand-blocking ring (8) is arranged between the second turbine generator (10) and the eccentric ring (9).
5. The hybrid modulated push and eccentric ring pointing steering tool as claimed in claim 1, wherein the short flexible reducer union (22) is placed in a drill collar (27) by external threads (29), the control shaft (26) is connected to the short flexible reducer union (22) by internal threads (28), and the drill bit is connected to the control shaft (26) by threads (30).
6. A compound pilot tool of the modulation push and eccentric ring directional type according to claim 1, characterized in that an eccentricity exists between the eccentric ring (9) and the 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810911745.1A CN109098660B (en) | 2018-08-10 | 2018-08-10 | Modulation push type and eccentric ring pointing type mixed type guiding drilling tool |
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| CN109098660A CN109098660A (en) | 2018-12-28 |
| CN109098660B true CN109098660B (en) | 2020-08-25 |
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Families Citing this family (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 |
| CN112855024B (en) * | 2019-11-27 | 2023-09-26 | 万晓跃 | Rotary steering drilling tool |
| CN111287659B (en) * | 2020-03-30 | 2021-09-07 | 西安石油大学 | Build-up rate adjusting method based on full-rotation directional type guiding drilling tool |
| CN112610158B (en) * | 2020-12-14 | 2022-09-13 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| 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 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
| US9784036B2 (en) * | 2011-07-11 | 2017-10-10 | Halliburton Energy Services, Inc. | Rotary steerable drilling system and method |
| CN102865038B (en) * | 2012-08-13 | 2016-08-03 | 中国石油大学(华东) | A kind of offset guide mechanism of dynamic guiding type rotary steering drilling tool |
| CN102913131B (en) * | 2012-08-14 | 2016-08-10 | 中国石油大学(华东) | A kind of dynamically guiding type rotary steering drilling tool |
| US9366087B2 (en) * | 2013-01-29 | 2016-06-14 | Schlumberger Technology Corporation | High dogleg steerable tool |
| CA2910916C (en) * | 2013-06-04 | 2018-06-05 | Halliburton Energy Services, Inc. | Dynamic geo-stationary actuation for a fully-rotating rotary steerable system |
| CN103437704B (en) * | 2013-08-02 | 2015-09-23 | 中石化石油工程机械有限公司 | Backup directional type rotary steerable drilling device |
| CN204877265U (en) * | 2015-06-09 | 2015-12-16 | 成都科特柯本科技有限公司 | Developments push away by rotatory steerable drilling instrument of formula |
| CN105370207B (en) * | 2015-11-30 | 2018-07-27 | 西安石油大学 | A kind of dynamic guiding type rotary steering drilling tool |
| CN107060643B (en) * | 2016-12-16 | 2019-03-08 | 中国科学院地质与地球物理研究所 | A kind of hybrid rotary steering system of high build angle rate and its control method |
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