CN102865039A - Structure bending corner locking mechanism for rotating guide drilling tool - Google Patents
Structure bending corner locking mechanism for rotating guide drilling tool Download PDFInfo
- Publication number
- CN102865039A CN102865039A CN201210402266XA CN201210402266A CN102865039A CN 102865039 A CN102865039 A CN 102865039A CN 201210402266X A CN201210402266X A CN 201210402266XA CN 201210402266 A CN201210402266 A CN 201210402266A CN 102865039 A CN102865039 A CN 102865039A
- Authority
- CN
- China
- Prior art keywords
- eccentric hoop
- stabilized platform
- bent angle
- servomotor
- retaining mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a structure bending corner locking mechanism for rotating a guide drilling tool. The structure bending corner locking mechanism comprises an outer rotation barrel, a mounting plate, a stable platform, an eccentric ring, a stabilized platform servo motor, a stabilized platform connection bearing, a drilling shaft, an eccentric ring servo motor, an eccentric ring connection bearing, a coupler and an electric conduction sliding ring, and the structure bending corner locking mechanism is arranged between the stable platform and the eccentric ring. A setting structure bending corner is transmitted to the drilling shaft through a drilling shaft connection bearing arranged inside the eccentric ring, then is transmitted to a drill and further achieves changes of structure bending corners in a drilling process. The structure bending corner locking mechanism is simple in structure, coordination can effectively reduce interference of external vibration and impact on drilling tools, work stability is improved, the structure bending corner locking mechanism is arranged, locking and unlocking functions of the structure bending corner can be achieved, use is convenient, deflecting capability and angle dropping capability are improved, and applicability is good.
Description
Technical field
The present invention relates to the technical field of dynamic guiding type rotary steering drilling tool, relate in particular to a kind of structure bent angle retaining mechanism for rotary steering drilling tool.
Background technology
Dynamically the guiding type rotary steering drilling tool system is the acme of world today's drilling technology development, representing the developing direction of high-precision directional drill well technology, this system is one and integrates closed loop automatic control system mechanical, electrical, liquid, rotates to be technical characteristics fully with all parts of down-hole.
Dynamically the deflecting ability of guiding type rotary steering drilling tool system does not rely on and the contacting of the borehole wall, by keeping the over the ground relative position of inactive state, adjustment biasing guiding mechanism and stabilized platform of stabilized platform, the control of azimuth and hole angle in the realization drilling process.Because underground working is complicated, shock and vibration is frequent and strong, and this causes accurate well track guiding and has a strong impact on.Therefore, in drilling process, the unfavorable fluctuation that causes for reducing external disturbance reduces the well track error of guiding deviation generation and creeps into risk, need to guarantee as much as possible hole angle and azimuthal real-time stabilization and good control.
Concrete measure has, calculated hole angle and the azimuth information that to control by computing unit according to presetting the well track parameter, utilize on the one hand advanced tachometric survey sensing device, adopt servo-actuated drilling speed Tracking Control Strategy, the realization stabilized platform is followed the reverse constant speed control of rotation urceolus, the geographical inactive state that keeps the different rotary place is to realize azimuthal control; On the other hand, in conjunction with biasing guiding mechanism operating principle, the relative position of accurate adjustment biasing guiding mechanism and stabilized platform, with the implementation structure bent angle, and then the control of realization hole angle.Especially, azimuthal control is a servomechanism process, the control of structure bent angle then is a metastable process, so, in order further to improve accuracy and the accuracy rate of hole angle regulation and control, except improving and optimizing necessary the measurement sensing circuit and control strategy, on frame for movement, design a kind of structure bent angle retaining mechanism with good function to improve the ability of anti-external vibration and impact in the control procedure, this has great importance for creeping into smoothly and efficiently.
U.S. Patent number US6,837,315B2, April 12 2002 applying date, authorize day on January 4th, 2005, the name of innovation and creation is called rotary steering drilling tool (Rotary Steerable Well Drilling Tool), this case discloses a kind of based on linear electric motors/ball screw and locking structure of rings bent angle retaining mechanism, its characteristics are, the telescopic linear motion realization eccentric shaft of linear electric motors/ball screw and separating and coupling of variable eccentric coupler by the installation of eccentric shaft side, and then adjust and the fixed structure bent angle, realize the drill bit guiding.Particularly path formula drilling tool inner space is narrow in view of dynamic guiding type rotary steering drilling tool, and described motor volume and installation site will inevitably be limited to some extent, and this has influence on its operating efficiency and reliability possibly.In addition, the introducing of supply line, the demand of power supply voltage stabilizing is also to a certain degree increasing design difficulty.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency for prior art exists provides a kind of structure bent angle retaining mechanism for rotary steering drilling tool; Can effectively reduce exterior vibration and impact to the harmful interference of drilling tool, the tight lock of implementation structure bent angle and the reliability of release, convenient to use, can effectively improve deflecting, drop angle ability, advance the effect of a track to reach flexible control.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of structure bent angle retaining mechanism for rotary steering drilling tool, comprise the rotation urceolus, gripper shoe, stabilized platform, eccentric hoop, the stabilized platform servomotor, the stabilized platform connection bearing, auger spindle, the eccentric hoop servomotor, the eccentric hoop connection bearing, shaft coupling and conducting slip ring, described auger spindle is arranged on the bottom of described rotation urceolus, described gripper shoe is arranged in the described rotation urceolus, described stabilized platform servomotor is arranged on the lower surface of described gripper shoe, the upper end of described stabilized platform is connected with described stabilized platform servomotor, the lower end of described stabilized platform is sealed and matched by stabilized platform connection bearing and described rotation outer tube inner wall, described stabilized platform servomotor drives stabilized platform by shaft coupling and freely rotates with respect to the rotation urceolus, described eccentric hoop is arranged on stabilized platform inside, described eccentric hoop links to each other with described eccentric hoop servomotor, described eccentric hoop connection bearing is arranged between the bottom and described stabilized platform of described eccentric hoop, described eccentric hoop is finished the location by eccentric hoop servomotor and eccentric hoop connection bearing and is rotated freely, described guide link is arranged on the top of described stabilized platform, described guide link provides power supply and control signal for the eccentric hoop servomotor, is provided with structure bent angle retaining mechanism between described stabilized platform and eccentric hoop.Structure bent angle retaining mechanism is mechanical lock mechanism.
Described mechanical lock mechanism comprises locking pin, locking pin spring, U-shaped shell fragment, the outside of the axle bottom circumference of described eccentric hoop servomotor evenly is provided with six smooth convex surfaces, described U-shaped shell fragment is arranged on the upper inner of described eccentric hoop, the top of U-shaped shell fragment is connected on the concave surface between described two adjacent smooth convex surfaces, described locking pin passes eccentric hoop and the bottom is connected on the described smooth convex surface, and described locking pin spring is arranged on the described locking pin.
Described locking pin and U-shaped shell fragment are three, and are evenly distributed on the eccentric hoop upper inner, and described eccentric hoop connection bearing is unilateral bearing.
Described structure retaining mechanism is the electromagnetic type retaining mechanism.
Described electromagnetic type retaining mechanism comprises electromagnetism ring, retaining ring, electromagnetic spring and locking ring set, described electromagnetism ring, electromagnetic spring and retaining ring are socketed on the outrigger shaft of described eccentric hoop top, and described electromagnetic spring is arranged between described electromagnetism ring and the described retaining ring.
The inside of described stabilized platform is provided with the stabilized platform inner groovy, the outside of described eccentric hoop is provided with the eccentric hoop projection, the inside of described retaining ring is provided with the retaining ring groove that matches with described eccentric hoop projection, and the outside of described retaining ring is provided with the retaining ring projection that matches with described stabilized platform inner groovy.
Described stabilized platform inner groovy is equally distributed six, and described eccentric hoop projection is equally distributed three.
Described stabilized platform servomotor and eccentric hoop servomotor are the hollow type motor.
The setting structure bent angle passes to auger spindle by the auger spindle connection bearing that is installed on eccentric hoop inside, and then passes to drill bit, realizes the change of structure bent angle in the drilling process.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
1. the structure bent angle retaining mechanism for rotary steering drilling tool of the present invention, it is simple in structure, comprise the rotation urceolus, gripper shoe, stabilized platform, eccentric hoop, the stabilized platform servomotor, the stabilized platform connection bearing, auger spindle, the eccentric hoop servomotor, the eccentric hoop connection bearing, shaft coupling and conducting slip ring and structure bent angle retaining mechanism, its cooperation can effectively reduce exterior vibration and the interference of impacting drilling tool, improved the stability of work, this structure bent angle retaining mechanism, can reach the function of locking and the release of structure bent angle, easy to use, and improved deflecting, the ability of drop angle, applicability is good.
2. structure bent angle retaining mechanism of the present invention is mechanical lock mechanism, comprise locking pin, locking pin spring, U-shaped shell fragment, the outside of the axle bottom circumference of described eccentric hoop servomotor evenly is provided with six smooth convex surfaces, described U-shaped shell fragment is arranged on the upper inner of described eccentric hoop, the top of U-shaped shell fragment is connected on the concave surface between described two adjacent smooth convex surfaces, described locking pin passes eccentric hoop and the bottom is connected on the described smooth convex surface, and described locking pin spring is arranged on the described locking pin.Among the present invention, the axle bottom of eccentric hoop servomotor is set to the shape of six smooth convex surfaces, and the recess between adjacent smooth convex surface is provided with U-shaped shell fragment and locking pin, when the eccentric hoop servomotor rotates, convex surface or recess by U-shaped shell fragment and locking pin butt eccentric hoop servomotor are finished locking and unlocking function, easy to use, reliability is high.
3. structure bent angle retaining mechanism of the present invention is the electromagnetic type retaining mechanism, it comprises electromagnetism ring, retaining ring, electromagnetic spring, described electromagnetism ring, electromagnetic spring and retaining ring are socketed on the outrigger shaft of described eccentric hoop top, and described electromagnetic spring is arranged between described electromagnetism ring and the described retaining ring.Adopt the electromagnetic type retaining mechanism, realize locking and unlocking function by electromagnetic action, by the effect of electromagnetism ring and electromagnetic spring, drive retaining ring locking and release, use simple, convenient.
4. the inside of stabilized platform is provided with the stabilized platform inner groovy in the electromagnetic type retaining mechanism of the present invention, the outside of described eccentric hoop is provided with the eccentric hoop projection, the inside of described retaining ring is provided with the retaining ring groove that matches with described eccentric hoop projection, and the outside of described retaining ring is provided with the retaining ring projection that matches with described stabilized platform inner groovy.Adopt this structure, make retaining ring can finish fast locking and unlocking function, practicality is good.
5. the present invention sets the structure bent angle and passes to auger spindle by the auger spindle connection bearing that is installed on eccentric hoop inside, and then passes to drill bit, can realize quickly and easily the change of structure bent angle in the drilling process.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of the present invention,
Fig. 2 is the locking state schematic diagram of the A-A direction of Fig. 1,
Fig. 3 is the released state schematic diagram of the A-A direction of Fig. 1,
Fig. 4 is the structural representation of the second embodiment of the present invention,
Fig. 5 is the perspective view of the eccentric hoop of Fig. 4,
Fig. 6 is the retaining ring perspective view of Fig. 4,
Fig. 7 is the stabilized platform perspective view of Fig. 4
Fig. 8 is the generalized section of the B-B direction of Fig. 4.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
(embodiment one)
Fig. 1 to Fig. 3 has shown the first embodiment of the present invention,
Shown in accompanying drawing 1-3, a kind of structure bent angle retaining mechanism for rotary steering drilling tool, comprise rotation urceolus 1, gripper shoe 2, stabilized platform 3, eccentric hoop 4, stabilized platform servomotor 5, stabilized platform connection bearing 6, auger spindle 7, eccentric hoop servomotor 8, eccentric hoop connection bearing 9, shaft coupling 10 and conducting slip ring 11, auger spindle 7 is arranged on the bottom of rotation urceolus 1, gripper shoe 2 is arranged in the rotation urceolus 1, stabilized platform servomotor 5 is arranged on the lower surface of gripper shoe 2, the upper end of stabilized platform 3 is connected with stabilized platform servomotor 5, stable flat 3 lower end cooperates with rotation urceolus 1 inner wall sealing by stabilized platform connection bearing 6, stabilized platform servomotor 5 drives stabilized platform 3 by shaft coupling 10 and freely rotates with respect to rotation urceolus 1, eccentric hoop 4 is arranged on stabilized platform 3 inside, eccentric hoop 4 links to each other with eccentric hoop servomotor 8, eccentric hoop connection bearing 9 is arranged between the bottom and stabilized platform 3 of eccentric hoop 4, eccentric hoop 4 is finished the location by eccentric hoop servomotor 8 and eccentric hoop connection bearing 9 and is rotated freely, guide link 11 is arranged on the outside of stabilized platform 3, guide link 11 provides power supply and control signal for eccentric hoop servomotor 8, is provided with structure bent angle retaining mechanism 12 between stabilized platform 3 and eccentric hoop 4.
Structure bent angle retaining mechanism 12 is mechanical lock mechanism 121.
Locking pin 1211 and U-shaped shell fragment 1213 are three, and are evenly distributed on the eccentric hoop 4, and eccentric hoop connection bearing 9 is unilateral bearing.
Stabilized platform servomotor 5 and eccentric hoop servomotor 8 are the hollow type motor.
The setting structure bent angle passes to auger spindle by the auger spindle connection bearing 13 that is installed on eccentric hoop inside, and then passes to drill bit, realizes the change of structure bent angle in the drilling process.
(embodiment two)
Fig. 4 to Fig. 8 has shown the second embodiment of the present invention,
See Fig. 4 to Fig. 8, present embodiment is substantially the same manner as Example 1, and difference is: structure retaining mechanism 12 is electromagnetic type retaining mechanism 122.
Electromagnetic type retaining mechanism 122 comprises electromagnetism ring 1221, electromagnetic spring 1222, retaining ring 1223 and locking ring set, electromagnetism ring 1221, electromagnetic spring 1222 and retaining ring are socketed on the outrigger shaft of described eccentric hoop top, and electromagnetic spring 1222 is arranged between electromagnetism ring 1221 and the retaining ring 1223.
The inside of stabilized platform 3 is provided with stabilized platform inner groovy 31, the outside of eccentric hoop 4 is provided with eccentric hoop projection 41, the inside of retaining ring 1223 is provided with the retaining ring groove 12231 that matches with eccentric hoop projection 41, and the outside of retaining ring 1223 is provided with the retaining ring projection 12232 that matches with stabilized platform inner groovy 31.
Stabilized platform inner groovy 31 is equally distributed six, and eccentric hoop projection 41 is equally distributed three.
Stabilized platform servomotor 5 and eccentric hoop servomotor 8 are the hollow type motor.The setting structure bent angle passes to auger spindle by the auger spindle connection bearing 13 that is installed on eccentric hoop inside, and then passes to drill bit, realizes the change of structure bent angle in the drilling process.
Claims (10)
1. structure bent angle retaining mechanism that is used for rotary steering drilling tool, comprise the rotation urceolus, gripper shoe, stabilized platform, eccentric hoop, the stabilized platform servomotor, the stabilized platform connection bearing, auger spindle, the eccentric hoop servomotor, the eccentric hoop connection bearing, shaft coupling and conducting slip ring, described auger spindle is arranged on the bottom of described rotation urceolus, described gripper shoe is arranged in the described rotation urceolus, described stabilized platform servomotor is arranged on the lower surface of described gripper shoe, the upper end of described stabilized platform is connected with described stabilized platform servomotor, the lower end of described stabilized platform is sealed and matched by stabilized platform connection bearing and described rotation outer tube inner wall, described stabilized platform servomotor drives stabilized platform by shaft coupling and freely rotates with respect to the rotation urceolus, described eccentric hoop is arranged on stabilized platform inside, described eccentric hoop links to each other with described eccentric hoop servomotor, described eccentric hoop connection bearing is arranged between the bottom and described stabilized platform of described eccentric hoop, described eccentric hoop is finished the location by eccentric hoop servomotor and eccentric hoop connection bearing and is rotated freely, described guide link is arranged on the top of described stabilized platform, described guide link is characterized in that for the eccentric hoop servomotor provides power supply and control signal: be provided with structure bent angle retaining mechanism between described stabilized platform and eccentric hoop.
2. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 1, it is characterized in that: structure bent angle retaining mechanism is mechanical lock mechanism.
3. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 2, it is characterized in that: described mechanical lock mechanism comprises locking pin, the locking pin spring, the U-shaped shell fragment, the outside of the axle bottom circumference of described eccentric hoop servomotor evenly is provided with six smooth convex surfaces, described U-shaped shell fragment is arranged on the upper inner of described eccentric hoop, the top of U-shaped shell fragment is connected on the concave surface between described two adjacent smooth convex surfaces, described locking pin passes eccentric hoop and the bottom is connected on the described smooth convex surface, and described locking pin spring is arranged on the described locking pin.
4. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 3, it is characterized in that: described locking pin and U-shaped shell fragment are three, and are evenly distributed on the eccentric hoop upper inner, described eccentric hoop connection bearing is unilateral bearing.
5. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 1, it is characterized in that: described structure retaining mechanism is the electromagnetic type retaining mechanism.
6. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 5, it is characterized in that: described electromagnetic type retaining mechanism comprises electromagnetism ring, retaining ring, electromagnetic spring and locking ring set, described electromagnetism ring, electromagnetic spring and retaining ring are socketed on the outrigger shaft of described eccentric hoop top, and described electromagnetic spring is arranged between described electromagnetism ring and the described retaining ring.
7. profit requires 6 described structure bent angle retaining mechanisms for rotary steering drilling tool, it is characterized in that: the inside of described stabilized platform is provided with the stabilized platform inner groovy, the outside of described eccentric hoop is provided with the eccentric hoop projection, the inside of described retaining ring is provided with the retaining ring groove that matches with described eccentric hoop projection, and the outside of described retaining ring is provided with the retaining ring projection that matches with described stabilized platform inner groovy.
8. the structure bent angle retaining mechanism for rotary steering drilling tool as claimed in claim 7, it is characterized in that: described stabilized platform inner groovy is equally distributed six, described eccentric hoop projection is equally distributed three.
9. such as claim 2 or the structure bent angle retaining mechanism for rotary steering drilling tool claimed in claim 5, it is characterized in that: described stabilized platform servomotor and eccentric hoop servomotor are the hollow type motor.
10. such as claim 2 or the structure bent angle retaining mechanism for rotary steering drilling tool claimed in claim 5, it is characterized in that: the setting structure bent angle passes to auger spindle by the auger spindle connection bearing that is installed on eccentric hoop inside, and then pass to drill bit, realize the change of structure bent angle in the drilling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210402266.XA CN102865039B (en) | 2012-10-19 | 2012-10-19 | For the structure bent angle retaining mechanism of rotary steering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210402266.XA CN102865039B (en) | 2012-10-19 | 2012-10-19 | For the structure bent angle retaining mechanism of rotary steering drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865039A true CN102865039A (en) | 2013-01-09 |
| CN102865039B CN102865039B (en) | 2015-10-28 |
Family
ID=47444142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210402266.XA Expired - Fee Related CN102865039B (en) | 2012-10-19 | 2012-10-19 | For the structure bent angle retaining mechanism of rotary steering drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865039B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481399A (en) * | 2014-11-20 | 2015-04-01 | 西南石油大学 | Near-bit well track control tool and control method thereof |
| CN112065279A (en) * | 2020-09-27 | 2020-12-11 | 西南石油大学 | Mechanical rotary guiding tool |
| CN113653478A (en) * | 2021-09-10 | 2021-11-16 | 中国石油大学(北京) | Perforating device, testing system and testing method for hydraulic fracturing simulation experiment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020175003A1 (en) * | 2001-05-09 | 2002-11-28 | Pisoni Attilio C. | Rotary steerable drilling tool |
| US20040104051A1 (en) * | 2001-05-09 | 2004-06-03 | Schlumberger Technology Corporation | [directional casing drilling] |
| CN101586440A (en) * | 2009-05-11 | 2009-11-25 | 中国海洋石油总公司 | Oriented rotational guide drilling tool |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
| CN102606073A (en) * | 2012-04-06 | 2012-07-25 | 西安石油大学 | Guide mechanism for directing rotary steering drilling tool |
-
2012
- 2012-10-19 CN CN201210402266.XA patent/CN102865039B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020175003A1 (en) * | 2001-05-09 | 2002-11-28 | Pisoni Attilio C. | Rotary steerable drilling tool |
| US20040104051A1 (en) * | 2001-05-09 | 2004-06-03 | Schlumberger Technology Corporation | [directional casing drilling] |
| CN101586440A (en) * | 2009-05-11 | 2009-11-25 | 中国海洋石油总公司 | Oriented rotational guide drilling tool |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
| CN102606073A (en) * | 2012-04-06 | 2012-07-25 | 西安石油大学 | Guide mechanism for directing rotary steering drilling tool |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481399A (en) * | 2014-11-20 | 2015-04-01 | 西南石油大学 | Near-bit well track control tool and control method thereof |
| CN104481399B (en) * | 2014-11-20 | 2016-08-24 | 西南石油大学 | A kind of nearly drill bit borehole trace control tool and control method thereof |
| CN112065279A (en) * | 2020-09-27 | 2020-12-11 | 西南石油大学 | Mechanical rotary guiding tool |
| CN112065279B (en) * | 2020-09-27 | 2022-01-11 | 西南石油大学 | Mechanical rotary guiding tool |
| CN113653478A (en) * | 2021-09-10 | 2021-11-16 | 中国石油大学(北京) | Perforating device, testing system and testing method for hydraulic fracturing simulation experiment |
| CN113653478B (en) * | 2021-09-10 | 2022-06-21 | 中国石油大学(北京) | Perforating device, testing system and testing method for hydraulic fracturing simulation experiment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102865039B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102865038B (en) | A kind of offset guide mechanism of dynamic guiding type rotary steering drilling tool | |
| CN101696628B (en) | Steering bias tool and steering bias method | |
| CN106677703B (en) | A kind of dynamic guiding type rotary steering drilling tool eccentric stiffener | |
| CN103437704B (en) | Backup directional type rotary steerable drilling device | |
| US9784036B2 (en) | Rotary steerable drilling system and method | |
| CN105041210A (en) | Drilling machine system based on sliding guide drilling closed loop control and drilling method | |
| CN102913131A (en) | Dynamic point-the-bit rotary steering drilling tool | |
| CN102865039B (en) | For the structure bent angle retaining mechanism of rotary steering drilling tool | |
| US9702193B2 (en) | Apparatus and method for rotary steering | |
| CN104989370A (en) | Sliding guide drilling closed-loop control system and sliding guide drilling closed-loop control method | |
| CN104499940A (en) | Full-rotation sense type guide tool and guide method | |
| CN103510872B (en) | A kind of controllable bent joint guiding mechanism | |
| GB2581926A (en) | Steering pad overextension prevention for rotary steerable system | |
| CN204827226U (en) | Rotatory steerable drilling instrument of directional formula of developments | |
| CN103278657B (en) | The tachometric survey mechanism of stable platform in dynamic guiding type rotary steering drilling tool | |
| CN112228035A (en) | Drill rod drive-based pointing type well track control method | |
| CN103195405A (en) | System and method of directing-type rotary steering actuator mandrel displacement vector control | |
| CN104775803A (en) | Method for controlling well track following and stability of dynamic point-bit rotary steering drilling tool | |
| CN202194651U (en) | Two-position north finder indexing mechanism | |
| CN115478781A (en) | Remote-control dual deviation rectifying method and device for coal mine drilling | |
| CN204357422U (en) | A kind of based on top drive the pinpoint detection system of the angle being provided with photoelectric encoder | |
| CN113216844A (en) | Guide nipple of rotary guide drilling tool | |
| CN107780833A (en) | A kind of rotary steering downhole tool control system | |
| CA3189150A1 (en) | Short-radius trajectory-controllable drilling tool and combined type steerable drilling tool | |
| US10858889B2 (en) | Steering assembly for directional drilling of a wellbore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20181019 |