CN108894730A - There is the static pushing type rotary steerable tool of packet - Google Patents
There is the static pushing type rotary steerable tool of packet Download PDFInfo
- Publication number
- CN108894730A CN108894730A CN201810818876.5A CN201810818876A CN108894730A CN 108894730 A CN108894730 A CN 108894730A CN 201810818876 A CN201810818876 A CN 201810818876A CN 108894730 A CN108894730 A CN 108894730A
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- China
- Prior art keywords
- packet
- outer cylinder
- rotary steerable
- pedestal
- pushing type
- 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.)
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Links
- 230000003068 static effect Effects 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 118
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 210000002105 tongue Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- CJRQAPHWCGEATR-UHFFFAOYSA-N n-methyl-n-prop-2-ynylbutan-2-amine Chemical compound CCC(C)N(C)CC#C CJRQAPHWCGEATR-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 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
- E21B7/06—Deflecting the direction of boreholes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The present invention relates to the drilling tools of the drilling fields such as petroleum, natural gas, are a kind of static pushing type rotary steerable tools for having packet.Technical problem：How deflecting effect is increased.Technical solution：A bump is fixed with the backup borehole wall in tool periphery, and cooperates pushing type biasing mechanism, to increase total unilateral build angle rate.Technical characteristic：Including, mandrel, biasing mechanism, outer cylinder, pedestal, bump；Pedestal rear end is fixedly connected with drill string；Pedestal is fixedly connected with mandrel, and mandrel front end is fixedly connected with drill bit；The outer rotatable socket pedestal of tube rear end, the rotatable socket mandrel of outer cylinder front end；The quantity of biasing mechanism is three sets, is uniformly arranged on outer cylinder front end periphery；Bump is fixedly connected on the side of outer cylinder front end periphery；Beneficial effect has：Bump can produce biasing, and the biasing mechanism A in bump also can produce biasing, and the two superposition generates bigger deflecting effect.
Description
Technical field
The present invention relates to the drilling tools of the drilling fields such as petroleum, natural gas, are a kind of static pushing type rotations for having packet
Steering tool.
Background technique
With ultradeep well, high-leveled and difficult directional well, cluster well, horizontal well, extended reach well, Multilateral Wells and 3 D complex structure well
Development, for rotary steerable tool because effect of hole cleaning is more preferable, wellbore trajectory control precision is higher, and displacement extension ability is stronger,
Gradually instead of traditional slide-and-guide tool.However, a key technology index -- the deflecting of existing rotary steerable tool
Rate -- opposite conventional slip guide drilling tool does not have advantage, so, in some well sections, such as horizontal well inclination section, horizontal well
Ladder section, distinguishingly interval equipotential, which are set, has to continue to use conventional slip guide drilling tool to increase build angle rate.
So inventing new rotary steerable tool, increase deflecting effect, needed for when being.
Summary of the invention
The present invention for the technical issues of be：How deflecting effect and the deficiencies in the prior art are increased.
The technical solution adopted by the present invention is that：Static pushing type rotary steerable tool periphery is set to be fixedly connected with a protrusion
Object, the bump backup borehole wall, and cooperate pushing type biasing mechanism deflecting, and then total unilateral build angle rate can be increased.
The technical characteristic that the present invention includes has：There is the static pushing type rotary steerable tool of packet, including, mandrel biases machine
Structure, outer cylinder, pedestal.
Pedestal rear end is fixedly connected with drill string, for the rotary steerable tool for having packet to be connected to drill string；Pedestal is solid
Determine connecting mandrel, mandrel front end is fixedly connected with drill bit, and the torque for generating drill string rotating is transmitted to drill bit, realizes to rock stratum
Cutting.
On the base, outer cylinder front end is rotatable to be socketed on mandrel for the outer rotatable socket of tube rear end；For wrapping up
The rotary steerable tool internal component of packet is stated, outer cylinder can be laterally static by the opposite borehole wall that rubs（It is not rotated relative to the borehole wall）,
Bearing is provided for mandrel rotation.
The quantity of biasing mechanism is three sets, is uniformly arranged on outer cylinder front end periphery；Biasing mechanism includes scalable rib；Three
The borehole wall for the backup direction initialization that the rib of set biasing mechanism can be set, to cause drill bit to deviate, to increase the list of drill bit
Side cutting, realizes the control to drill bit drilling direction, achievees the purpose that guiding.
It is characterized in that：The static pushing type rotary steerable tool for having packet further includes bump, and bump is fixed to be connected
Connect the side in outer cylinder front end periphery；When outer cylinder is laterally static by the opposite borehole wall of friction, bump backup corresponds to side well
Wall makes drill bit be biased to the opposite side borehole wall, so that the unilateral cutting of drill bit is increased, to realize guiding purpose.
In the application, the front end refers to close to one end of drill bit；The rear end, it is corresponding with front end, refer to close to drill string
One end.In the application, one word of setting refers to setting in advance, determines.
Further, three sets of biasing mechanisms are biasing mechanism A, biasing mechanism B, biasing mechanism C respectively, wherein biasing mechanism A
On the inside of bump, the rib A of biasing mechanism A can be stretched out out of bump.Bump overlaps with biasing mechanism A,
The structural thickness of biasing mechanism A can be increased, and then increase the extended range of rib；It can also make making for bump and biasing mechanism
Oblique effect superposition.
Further, the extended distance of rib A of biasing mechanism A is greater than the extended distance of rib B of biasing mechanism B, biasing
The extended distance of rib B of mechanism B is equal to the extended distance of rib C of biasing mechanism C.Because of the extended distance of rib and outer cylinder
And its thickness of attachment is related, biasing mechanism A is located on the inside of bump, and biasing can be arranged in thickness of the outer cylinder plus bump
The rib A of mechanism A, and the rib C of the rib B of biasing mechanism B, biasing mechanism C can only be arranged in the thickness of outer cylinder.
Further, the static pushing type rotary steerable tool for having packet further includes driving mechanism；Driving mechanism is set to
It, can controlled driving outer cylinder and pedestal relative rotation between outer cylinder and pedestal.During directional drilling, there is the static pushing type of packet
Rotary steerable tool may deviate the biased direction of setting, relatively rotated by driving outer cylinder and pedestal, can maintain the quiet of packet
State pushing type rotary steerable tool is directed toward the biased direction of setting always.
Further, driving mechanism use is driven by electricity.
Further, the static pushing type rotary steerable tool for having packet further includes retaining mechanism, and retaining mechanism is set to
Between outer cylinder and pedestal, pedestal and outer cylinder can be locked together, be used for compound drilling.
Further, retaining mechanism can be friction-type retaining mechanism；Friction-type retaining mechanism include cavity, thrust mechanism,
Friction block, rubbing surface；Thrust mechanism can move back and forth in the cavity, and friction block is pushed to squeeze or be detached from rubbing surface, for realizing
Locking or unlocked state.
Further, retaining mechanism is also possible to wedged type retaining mechanism, and wedged type retaining mechanism includes cavity, thrust machine
Structure, movable block tongue, card slot；Thrust mechanism can move back and forth in the cavity, and promotion activity block tongue inserts or pull out card slot, for real
Now locking or unlocked state.
Further, bump is bilateral symmetry.
The present invention also provides a kind of drill assembly, it is provided with the static pushing type rotary steerable tool for having packet, it is described
There is the static pushing type rotary steerable tool rear end connection drill string of packet, front end connects drill bit.
Because the static pushing type rotary steerable tool of packet is to be fixedly connected with a bump in outer cylinder side, take a fancy to
One packet that has been outer tube length is removed, so, it is the static pushing type rotary steerable tool for having packet by this programme name definition, simple,
Accurately, vivid.
In the present invention, according to techniques known, necessary component, unit or system are set in necessary place.
Such as power supply is set on drill string, control system is set on drill string, bearing is set at necessity, sealing is set at necessity
Part；Drilling fluid is delivered to shaft bottom by drill string, mandrel, drill bit.
The beneficial effect that the present invention obtains has：1）The static pushing type rotary steerable tool outer cylinder side for having packet is fixed
It is connected with bump, outer cylinder is laterally static with the borehole wall, can lead to drill bit and also biases to the opposite side borehole wall, to increase drill bit
Unilateral cutting, realize deflecting effect； 2）Biasing mechanism A is located on the inside of bump, and bump can produce biasing, is located at protrusion
Biasing mechanism A in object also can produce biasing, and the two superposition generates bigger deflecting effect；It obtains than simple existing rotation
The stronger deflecting ability of steering tool is beneficial in some well sections, such as horizontal well inclination section, horizontal well ladder section, distinguishingly
The positions such as interval deflecting；3）It can be locked by retaining mechanism, outer cylinder and bump rotate together with drill string, realize angle holding drilling.
Detailed description of the invention
Fig. 1 has the static pushing type rotary steerable tool structural schematic diagram of packet.
Fig. 2 bump, biasing mechanism diagrammatic cross-section.
Fig. 3 driving mechanism structure schematic diagram.
Fig. 4 retaining mechanism position diagrammatic cross-section.
Fig. 5 friction-type locking mechanism structure schematic diagram.
Fig. 6 wedged type locking mechanism structure schematic diagram.
In figure, 1 mandrel, 2 pedestals, 3 drill strings, 4 drill bits, 5 outer cylinders, 6 bumps, 10 biasing mechanisms, 12 ribs, 14 plungers,
16 shafts, 18 reset springs, 20 driving mechanisms, 22 first parts, 24 second parts, 30/40 retaining mechanism, 32 cavitys, 34 push away
Force mechanisms, 36 friction blocks, 38 rubbing surfaces, 42 cavitys, 44 thrust mechanisms, 46 movable block tongues, 48 card slots.
Specific embodiment
It should be noted that in the absence of conflict, the technical characteristic in embodiment and embodiment in the present invention can
To be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Below with reference to Fig. 1 to Fig. 6, the preferred embodiment of the present invention is described in further detail.
As shown in Figure 1, describing the section that the static pushing type rotary steerable tool for having packet passes through 3 axis of drill string.
Bump 6 is fixedly connected on the side of 5 front end periphery of outer cylinder, when outer cylinder 5 is laterally static by the opposite borehole wall that rubs
When, 6 backup of bump corresponds to the side borehole wall, and drill bit 4 is made to be biased to the opposite other side borehole wall, cuts to increase the unilateral of drill bit 4
It cuts, to realize guiding purpose.
2 rear end of pedestal is fixedly connected with drill string 3, for the rotary steerable tool for having packet to be connected to drill string 3；Pedestal
2 are fixedly connected with mandrel 1, and 1 front end of mandrel is fixedly connected with drill bit 4, and the torque for generating the rotation of drill string 3 is transmitted to drill bit 4, real
Now to the cutting of rock stratum.
On the base 2,5 front end of outer cylinder is rotatable to be socketed on mandrel 1 the rotatable socket in 5 rear end of outer cylinder；For wrapping
The rotary steerable tool internal component for having packet is wrapped up in, outer cylinder 5 can be laterally static by the opposite borehole wall that rubs（The opposite borehole wall does not turn
It is dynamic）, bearing is provided for the rotation of mandrel 1.
Biasing mechanism 10 includes scalable rib 12；The borehole wall for the backup direction initialization that rib 12 can be set, to cause to bore
First 4 offset realizes the control to 4 drilling direction of drill bit, also can reach the mesh of guiding to increase the unilateral cutting of drill bit 4
's.It is biasing mechanism 10A in Fig. 1, it can be seen that biasing mechanism 10A is located in bump 6.Biasing mechanism 10 can be in this way
, including:Rib 12, plunger 14, shaft 16, reset spring 18；Rib 12 is rotatably arranged in biasing machine by shaft 16
In structure 10, plunger 14 is set on the inside of a movable end of rib 12, and plunger 14 is telescopically disposed in plunger case, can push
Rib 12 is protruding with the backup borehole wall, and reset spring 18 is arranged on the inside of another movable end of rib 12, for making rib
12 reset；Plunger 14 is driven by hydraulic oil and servo motor.
Driving mechanism 20 is set between outer cylinder 5 and pedestal 2, can controlled driving outer cylinder 5 and the relative rotation of pedestal 2.
Retaining mechanism 30 is set between outer cylinder 5 and pedestal 2, pedestal 2 and outer cylinder 5 can be locked together, for compound
Drilling.
As shown in Fig. 2, for A-A section in Fig. 1；Bump 6 is fixedly connected on the side of 5 front end periphery of outer cylinder, bump 6
For bilateral symmetry.
The quantity of biasing mechanism 10 is three sets, is uniformly arranged on 5 front end periphery of outer cylinder；Three sets of biasing mechanisms 10 are inclined respectively
Set mechanism 10A, biasing mechanism 10B, biasing mechanism 10C, wherein biasing mechanism 10A is located at 6 inside of bump, biasing mechanism 10A
Rib 12A can be stretched out out of bump 6.
The extended distance of rib 12A of biasing mechanism 10A is greater than the extended distance of rib 12B of biasing mechanism 10B；Biasing
The extended distance of rib 12B of mechanism 10B is equal to the extended distance of rib 12C of biasing mechanism 10C.Because rib 12 is extended
Distance is related to the thickness of outer cylinder 5 and its attachment, and biasing mechanism 10A is located at 6 inside of bump, can add bump 6 in outer cylinder 5
Thickness in setting biasing mechanism 10A rib 12A, and the rib 12C of the rib 12B of biasing mechanism 10B, biasing mechanism 10C
It can only be arranged in the thickness of outer cylinder 5.
As shown in figure 3, for B-B section in Fig. 1；Driving mechanism 20 is set between outer cylinder 5 and pedestal 2, controlled can be driven
Outer cylinder 5 and pedestal 2 relatively rotate.Driving mechanism 20 can be such, including first part 22 and second part 24, and first
22 such as motor stators are divided to be fixed in outer cylinder 5, such as rotor of second part 24 is fixedly attached on the base 2, the
A part 22 is rotated with the cooperation of second part 24, and driving outer cylinder 5 and pedestal 2 relatively rotate.During directional drilling, there is packet
Static pushing type rotary steerable tool may deviate the biased direction of setting, be relatively rotated by driving outer cylinder 5 and pedestal 2, can
Maintain the biased direction for thering is the static pushing type rotary steerable tool of packet to be directed toward setting always.
As shown in figure 4, for C-C section in Fig. 1；Retaining mechanism 30 is set between outer cylinder 5 and pedestal 2, can pedestal 2 with
Outer cylinder 5 is locked together, and outer cylinder 5 rotates together with drill string 3, is used for angle holding drilling.
As shown in figure 5, retaining mechanism 30 can be friction-type retaining mechanism 30；Friction-type retaining mechanism 30 includes cavity
32, thrust mechanism 34, friction block 36, rubbing surface 38；Thrust mechanism 34 can move back and forth in cavity 32, push being attached thereto
Friction block 36 squeezes or is detached from rubbing surface 38, for realizing locking or unlocked state.
As shown in fig. 6, retaining mechanism 40 is also possible to wedged type retaining mechanism 40, wedged type retaining mechanism 40 includes cavity
42, thrust mechanism 44, movable block tongue 46, card slot 48；Thrust mechanism 44 can move back and forth in cavity 42, push being attached thereto
Movable block tongue 46 inserts or pull out card slot 48, for realizing locking or unlocked state.
Working method of the invention has：1) directional drilling mode, the static pushing type rotary steerable tool for having packet
Front end side is fixedly connected with bump 6, is unlocked by retaining mechanism 30, and outer cylinder 5 is laterally static with the borehole wall, leads to drill bit 4
It is tilted to the side borehole wall, to increase the unilateral cutting of drill bit 4, realizes deflecting effect；2) directional drilling mode passes through locking
Mechanism 30 unlocks, and outer cylinder 5 and the borehole wall are laterally static, and bump 6 generates biasing, and the biasing mechanism 10A in bump 6 is also produced
Raw biasing, the two superposition, generates bigger deflecting effect；3) angle holding drilling mode can be locked, outer cylinder 5 by retaining mechanism 30
And bump 6 rotates together with drill string 3, realizes angle holding drilling.
The above is only presently preferred embodiments of the present invention, but it is understood that, the invention is not limited to disclosed
Embodiment and component, on the contrary, it is intended to cover including that various within the spirit and scope of appended claims change
Type, feature combination, equivalent device and equivalent component.In addition, there is the size of the feature of each component in the accompanying drawings simultaneously
It is not limiting, wherein the size of each component can be different from the size of component of description in the accompanying drawings.Therefore, the present invention uses
In covering to remodeling of the invention and deformation, as long as they are in the range of appended claims and their equivalent scheme
Within.
The above is only presently preferred embodiments of the present invention, but it is understood that, the invention is not limited to disclosed
Embodiment and component, on the contrary, it is intended to cover including that various within the spirit and scope of appended claims change
Type, feature combination, equivalent device and equivalent component.In addition, there is the size of the feature of each component in the accompanying drawings simultaneously
It is not limiting, wherein the size of each component can be different from the size of component of description in the accompanying drawings.Therefore, the present invention uses
In covering to remodeling of the invention and deformation, as long as they are in the range of appended claims and their equivalent scheme
Within.
Claims (10)
1. a kind of static pushing type rotary steerable tool for having packet, including, mandrel (1), biasing mechanism (10), outer cylinder (5), pedestal
(2)；
Pedestal (2) rear end is fixedly connected with drill string (3)；Pedestal (2) is fixedly connected mandrel (1), and mandrel (1) front end is fixedly connected with drill bit
(4)；Outer cylinder (5) rear end is rotatable to be socketed on pedestal (2), and outer cylinder (5) front end is rotatable to be socketed on mandrel (1)；Partially
The quantity for setting mechanism (10) is three sets, is uniformly arranged on outer cylinder (5) front end periphery；Biasing mechanism (10) includes scalable rib
(12)；
It is characterized in that：The static pushing type rotary steerable tool for having packet further includes bump (6), and bump (6) is fixed
It is connected to the side of outer cylinder (5) front end periphery.
2. the static pushing type rotary steerable tool according to claim 1 for having packet, it is characterised in that：Three sets of biasing mechanisms
It (10) is biasing mechanism (10) A, biasing mechanism (10) B, biasing mechanism (10) C respectively, wherein biasing mechanism (10) A is located at prominent
It rises on the inside of object (6), rib (12) A of biasing mechanism (10) A can be stretched out out of bump (6).
3. the static pushing type rotary steerable tool according to claim 2 for having packet, it is characterised in that：Biasing mechanism (10)
The extended distance of rib (12) A of A is greater than the extended distance of rib (12) B of biasing mechanism (10) B；Biasing mechanism (10) B's
The extended distance of rib (12) B is equal to the extended distance of rib (12) C of biasing mechanism (10) C.
4. according to claim 1,2,3 described in any item rotary steerable tools for having packet, it is characterised in that：It is described to have the quiet of packet
State pushing type rotary steerable tool further includes driving mechanism (20)；Driving mechanism (20) be set to outer cylinder (5) and pedestal (2) it
Between, it can controlled driving outer cylinder (5) and pedestal (2) relative rotation.
5. the static pushing type rotary steerable tool according to claim 4 for having packet, it is characterised in that：Driving mechanism (20)
Using being driven by electricity.
6. according to claim 1,2,3,5 described in any item rotary steerable tools for having packet, it is characterised in that：It is described to have packet
Static pushing type rotary steerable tool further includes retaining mechanism (30), retaining mechanism (30) be set to outer cylinder (5) and pedestal (2) it
Between, pedestal (2) and outer cylinder (5) can be locked together.
7. the static pushing type rotary steerable tool according to claim 6 for having packet, it is characterised in that：Retaining mechanism (30)
It can be friction-type retaining mechanism (30)；Friction-type retaining mechanism (30) includes cavity (32), thrust mechanism (34), friction block
(36), rubbing surface (38)；Thrust mechanism (34) can move back and forth in cavity (32), push friction block (36) to squeeze or be detached from and rub
Wiping face (38).
8. the static pushing type rotary steerable tool according to claim 6 for having packet, it is characterised in that：Retaining mechanism (40)
It is also possible to wedged type retaining mechanism (40), wedged type retaining mechanism (40) includes cavity (42), thrust mechanism (44), active card
Tongue (46), card slot (48)；Thrust mechanism (44) can move back and forth in cavity (42), and promotion activity block tongue (46) inserts or pull out
Card slot (48).
9. according to claim 1,2,3,5,7,8 described in any item static pushing type rotary steerable tools for having packet, feature
It is：Bump (6) is bilateral symmetry.
10. a kind of drill assembly, it is characterised in that：Including there is the rotation of the static pushing type of packet as described in claim any one of 1-9
Turn steering tool, static pushing type rotary steerable tool rear end connection drill string (3) for having packet, front end connects drill bit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818876.5A CN108894730A (en) | 2018-07-24 | 2018-07-24 | There is the static pushing type rotary steerable tool of packet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818876.5A CN108894730A (en) | 2018-07-24 | 2018-07-24 | There is the static pushing type rotary steerable tool of packet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108894730A true CN108894730A (en) | 2018-11-27 |
Family
ID=64351540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810818876.5A Withdrawn CN108894730A (en) | 2018-07-24 | 2018-07-24 | There is the static pushing type rotary steerable tool of packet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108894730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855018A (en) * | 2021-01-14 | 2021-05-28 | 中国石油大学(华东) | Experimental device and method for evaluating stratum adaptability of static pushing type rotary steering system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207319U (en) * | 1987-07-17 | 1988-03-09 | 中国矿业学院 | Drilling rig for bending holes |
| GB2316427A (en) * | 1996-08-22 | 1998-02-25 | Baker Hughes Inc | Intermediate radius steerable tool |
| CN201292770Y (en) * | 2008-10-22 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | High strength eccentric reaming tool |
| CN101784745A (en) * | 2007-08-15 | 2010-07-21 | 普拉德研究及开发股份有限公司 | Motor bit system |
| CN102278065A (en) * | 2011-07-08 | 2011-12-14 | 中国石油大学(北京) | Rotating steering tool, deflection mechanism thereof and control method for deflection mechanism |
-
2018
- 2018-07-24 CN CN201810818876.5A patent/CN108894730A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207319U (en) * | 1987-07-17 | 1988-03-09 | 中国矿业学院 | Drilling rig for bending holes |
| GB2316427A (en) * | 1996-08-22 | 1998-02-25 | Baker Hughes Inc | Intermediate radius steerable tool |
| CN101784745A (en) * | 2007-08-15 | 2010-07-21 | 普拉德研究及开发股份有限公司 | Motor bit system |
| CN201292770Y (en) * | 2008-10-22 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | High strength eccentric reaming tool |
| CN102278065A (en) * | 2011-07-08 | 2011-12-14 | 中国石油大学(北京) | Rotating steering tool, deflection mechanism thereof and control method for deflection mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855018A (en) * | 2021-01-14 | 2021-05-28 | 中国石油大学(华东) | Experimental device and method for evaluating stratum adaptability of static pushing type rotary steering system |
| CN112855018B (en) * | 2021-01-14 | 2022-08-02 | 中国石油大学(华东) | Experimental device and method for evaluating stratum adaptability of static pushing type rotary steering system |
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Application publication date: 20181127 |