CN108661559A - Static state can inclined rotary steering drilling tool - Google Patents
Static state can inclined rotary steering drilling tool Download PDFInfo
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- CN108661559A CN108661559A CN201810665841.2A CN201810665841A CN108661559A CN 108661559 A CN108661559 A CN 108661559A CN 201810665841 A CN201810665841 A CN 201810665841A CN 108661559 A CN108661559 A CN 108661559A
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- drilling tool
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- 238000005553 drilling Methods 0.000 title claims abstract description 60
- 230000003068 static effect Effects 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 155
- 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 21
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000002105 tongue Anatomy 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Classifications
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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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- 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
It is that a kind of static state can inclined rotary steering drilling tool the present invention relates to the drilling tool of the drilling fields such as oil, natural gas.For problem：Existing rotary steering drilling tool is complicated, and internal cavities are more, not compact.The present invention program：Make the amesiality borehole wall of drill bit using what two adjustable camcylinders in a rotatable round buss can be set.Including feature：Pedestal, main shaft, interior camcylinder, outer camcylinder, round buss, driving mechanism A, retaining mechanism A, retaining mechanism B, retaining mechanism C, driving mechanism B；Interior camcylinder is rotatable to be socketed on main shaft；Outer camcylinder is rotatable to be socketed on interior camcylinder；Round buss one end is rotatable to be socketed on outer camcylinder, and the round buss other end is rotatable to be socketed on pedestal；Advantageous effect：It is adjusted using two adjustable camcylinders, drill bit is made to bias, to increase the unilateral cutting of drill bit, realized and be oriented to purpose.
Description
Technical field
It is that a kind of static state can inclined rotary steerable drilling the present invention relates to the drilling tool of the drilling fields such as oil, natural gas
Tool.
Background technology
In the prior art, rotary steering drilling tool mainly has two kinds of pushing type and directional type.Wherein, pushing type rotation is led
It is to be uniformly arranged three scalable ribs, the well of the selectable backup direction initialization of three ribs in tool periphery to drilling tool
Wall causes drill bit to deviate, and to increase the unilateral cutting of drill bit, realizes the control to drill bit drilling direction, reaches guiding
Purpose；However, the volume of guide drilling tool especially radius size is limited, three scalable ribs of setting make its construction
Complexity, and internal cavities are big, to material requirements height.
Guiding type rotary steering drilling tool can provide one and wellbore axis by the biasing mechanism built in one for drill bit
The inconsistent inclination angle of line, and then generate guiding role.However, the tool construction is complicated, movable part is more, and internal cavities are big, knot
Structure is not compact enough.
Invention is a kind of simple in structure, and internal cavities are few, compact-sized rotary steering drilling tool, required when being.
Invention content
The present invention for the technical issues of be：Existing rotary steering drilling tool is complicated, and internal cavities are more, not tightly
It gathers.
The technical solution adopted by the present invention is：It can be set using two adjustable camcylinders in a rotatable round buss
Fixed makes the amesiality borehole wall of drill bit, to increase the unilateral cutting of drill bit, to realize guiding purpose.
The technical characteristic that the present invention includes has：Static state can inclined rotary steering drilling tool, including, pedestal, main shaft, interior bias
Cylinder, outer camcylinder, round buss, driving mechanism A, retaining mechanism A, retaining mechanism B, retaining mechanism C, driving mechanism B；Pedestal
It is fixedly connected with drill string；Main shaft one end is fixedly connected with drill bit, and the main shaft other end connects driving mechanism A；Driving mechanism A can driving spindle
Rotation.Interior camcylinder is rotatable to be socketed on main shaft；Outer camcylinder is rotatable to be socketed on interior camcylinder；Circle set
One end is rotatable is socketed on outer camcylinder for cylinder, and the round buss other end is rotatable to be socketed on pedestal；Retaining mechanism A is set
It is placed between main shaft and interior camcylinder, it can be interior camcylinder together with principal shaft locking；Retaining mechanism B is set to interior bias
Between cylinder and outer camcylinder, outer camcylinder and interior camcylinder can be locked together；Retaining mechanism C is set to outer inclined
Between heart cylinder and round buss, round buss and outer camcylinder can be locked together；Driving mechanism B is set to outer camcylinder
Between round buss, can controlled driving round buss rotated relative to outer camcylinder.
The present invention drives drill bit to be biased to the direction of setting by the relative rotation of interior camcylinder and outer camcylinder,
To increase the unilateral cutting of drill bit, the deflecting of any direction is realized.In deflecting drilling process, drill bit may deviate setting
Biased direction can maintain drill bit to be directed toward the biased direction of setting eventually by driving round buss to be relatively rotated with outer camcylinder.
Illustrate, in the application, one word of setting refers to prior setting, determines.
Further, interior camcylinder barrel minimum wall thickness (MINI W.) is equal with outer camcylinder barrel minimum wall thickness (MINI W.)；And interior off-centre operation
Cylinder barrel thickest is equal with outer camcylinder barrel thickest；Periphery each point for rotary steerable tool is to spindle shaft
Linear distance is equal, with angle holding drilling.In addition, the sum of camcylinder barrel minimum wall thickness (MINI W.), thickest and outer camcylinder in only
The sum of barrel minimum wall thickness (MINI W.), thickest are equal, can also realize the periphery each point of rotary steerable tool to main-shaft axis apart from phase
Deng, but structural strength wants poor.
Further, driving mechanism A is a universal coupling；Pedestal further includes a mandrel, and mandrel is fixedly connected on base
In seat, it is located at one end close to drill string on drillstring axis, for connecting universal coupling；Universal coupling connecting mandrel and master
Axis, for the torque of drill string to be passed to drill bit.Universal coupling can be it is such, including sequentially connected upper connecting fork,
Connecting shaft and lower connecting fork；Mandrel is connect with upper connecting fork, and upper connecting fork uses cross axis connection with connecting shaft, and connecting shaft is under
Connecting fork is connect by cross axis connection, lower connecting fork with main shaft；The rotation of drill string drives pedestal rotation fixed thereto, then
Main shaft rotation is driven by universal coupling, and then drives the bit being fixedly connected with main shaft.The torsion that drill string rotating generates
Square acts on cutting of the drill bit realization to rock stratum by universal coupling and main shaft.
Further, driving mechanism A can also be turbine.Turbine generates rotation driving spindle rotation by the fluid power that mud flows
Turn, and then drives the bit being fixedly connected with main shaft.
Further, retaining mechanism A and/or retaining mechanism B and/or retaining mechanism C can be friction-type retaining mechanism；
Friction-type retaining mechanism includes cavity, thrust mechanism, brake pad, rubbing surface；Thrust mechanism can move back and forth in the cavity, push
The brake pad being attached thereto squeezes or is detached from rubbing surface, for realizing locking or unlocked state.
Further, thickest position is arranged in interior camcylinder cylinder in the cavity of retaining mechanism A, and rubbing surface is arranged in master
Shaft wall corresponding position periphery；Thickest position, rubbing surface setting is arranged in outer camcylinder cylinder in the cavity of retaining mechanism B
In interior camcylinder barrel corresponding position periphery；The cavity of retaining mechanism C is arranged in outer camcylinder barrel thickest position,
Rubbing surface is arranged in round buss barrel corresponding position inner circumferential.Cavity setting is beneficial to increase structural strength in thickest position.
Further, retaining mechanism A and/or retaining mechanism B can also be wedged type retaining mechanism, wedged type retaining mechanism
Including cavity, thrust mechanism, movable block tongue, card slot；Thrust mechanism can move back and forth in the cavity, push the activity being attached thereto
Block tongue inserts or pull out card slot, for realizing locking or unlocked state.
Further, thickest position is arranged in interior camcylinder cylinder in the cavity of retaining mechanism A, and card slot is arranged in main shaft
Barrel corresponding position periphery；Thickest position is arranged in outer camcylinder cylinder in the cavity of retaining mechanism B, including card slot setting
Camcylinder barrel corresponding position periphery, pocket numbers are two, and one is arranged in interior camcylinder barrel thickest position,
It can be used for drill bit and maintain deflecting state drilling；One setting can be used for drill bit dimension in interior camcylinder barrel minimum wall thickness (MINI W.) position
Keep steady ramp-like state drilling；Cavity setting is beneficial to increase structural strength in thickest position.
Further, retaining mechanism A can use electric drive；Retaining mechanism B can use electric drive；Retaining mechanism C
Electric drive can be used；Driving mechanism B can use electric drive.
For example, power supply can be located on drill string, it is arranged in main shaft, interior camcylinder, outer camcylinder and round buss conductive
Electric current is introduced retaining mechanism A, retaining mechanism B, retaining mechanism C, driving mechanism B by slip ring；It can also will be electric by wireless induction
Stream introduces retaining mechanism A, retaining mechanism B, retaining mechanism C, driving mechanism B.
Further, retaining mechanism A can also be driven using mud；Retaining mechanism B can also be driven using mud；Locking machine
Structure C can also be driven using mud；Driving mechanism B can also be driven using mud.
For example, being provided with controllable opening on main shaft, corresponding pipeline is set in interior camcylinder and outer camcylinder
By mud controllable introducing retaining mechanism A, retaining mechanism B, retaining mechanism C and driving mechanism, and main shaft, interior camcylinder,
Sealing device is arranged in outer camcylinder and round buss setting junction, for avoiding mud loss.
In the present invention, according to the known technology of engine art, necessary component, unit is set in necessary place or are
System.Such as power supply is set on drill string, control system is set on drill string, bearing is set at necessity, is arranged at necessity close
Interior camcylinder, outer camcylinder position detecting mechanism is arranged in sealing at necessity.
Beneficial effects of the present invention have：1）It is adjusted using two adjustable camcylinders, so that drill bit is biased, to increase
The unilateral cutting of drill bit is realized and is oriented to purpose；2）The rib backup borehole wall is used compared with the prior art, and round buss can be with borehole wall contact surface
Product bigger, backup power are stronger；3）It is compact-sized, internal cavities are few, are beneficial to reduce the requirement to material, improve rotary steering work
The working life of tool.
Description of the drawings
Fig. 1 static state can partially rotary steering drilling tool be in hold angle state and deflecting state vs' schematic diagram.
Static state can inclined rotary steering drilling tool structural schematic diagram when Fig. 2 hold angle states.
Fig. 3 AA diagrammatic cross-sections.
Static state can inclined rotary steering drilling tool structural schematic diagram when Fig. 4 deflecting states.
Fig. 5 BB diagrammatic cross-sections.
Fig. 6 CC diagrammatic cross-sections.
Fig. 7 friction-type retaining mechanism schematic diagrames.
Fig. 8 wedged type retaining mechanism schematic diagrames.
Fig. 9 universal coupling schematic diagrames.
In figure, 1 static state can inclined rotary steering drilling tool, 2 drill bits, 3 drill strings, 10 main shafts, 12 driving mechanism A, in 20
Camcylinder, 30 outer camcylinders, 40 round buss, 42 driving mechanism B, 50 pedestals, 52 mandrels, 60/70 retaining mechanism, 62
Including cavity, 64 thrust mechanisms, 66 brake pads, 68 rubbing surfaces, 72 cavitys, 74 thrust mechanisms, 76 movable block tongues, 78 card slots, 80
Universal coupling, connecting fork on 82,84 connecting shafts, 86 times connecting forks.
Specific implementation mode
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.
With reference to Fig. 1 to Fig. 9, the preferred embodiment of the present invention is described in further detail.
As shown in Figure 1, it is shown that static to be in the form of hold angle state and deflecting state by rotary steering drilling tool 1 partially
Comparison；Upper left, which is static state, to be in hold angle state by rotary steering drilling tool 1 partially, and drill bit 2 is in same axis with drill string 3
On, it will not the targetedly unilateral cutting borehole wall；Bottom right be static state can partially at rotary steering drilling tool 1 deflecting state, drill bit 2 it is inclined
It is protruding upward from 3 place axis of drill string, to increase unilateral cutting of the drill bit 2 to the borehole wall above, realize to 2 side of drilling of drill bit
To control, achieve the purpose that guiding.
As shown in Fig. 2, rotary steering drilling tool 1 can be cutd open partially for the static state for crossing 10 axis of main shaft in Fig. 1 when hold angle state
Face；20 barrel minimum position of interior camcylinder is corresponding with 30 barrel maximum position of outer camcylinder, and 20 barrel of interior camcylinder is most
Big position is corresponding with 30 barrel minimum position of outer camcylinder, and 10 axis of main shaft is overlapped with 3 axis of drill string；Fig. 2 is explained in Fig. 1
Static state can rotary steering drilling tool 1 partially when be in the form of hold angle state, drill bit 2 and drill string 3 are on same axis.Fig. 2
In, retaining mechanism 60B is in locking state, and outer camcylinder 30 is locked together with interior camcylinder 20, for maintaining main shaft
10 axis are overlapped with 3 axis of drill string, keep the hold angle state of setting；Retaining mechanism 60A, retaining mechanism 60C can be at locking shape
State can also be in unlocked state, does not affect 10 axis of main shaft and is overlapped with 3 axis of drill string.
Because driving mechanism A12 can have universal coupling 80, the selection of turbine difference, driven without signal in Fig. 2
The connection relation of mechanism A12 and pedestal 50, in Fig. 4 also so.
Round buss 40 is rotatable to be socketed on pedestal 50.Pedestal 50 is fixedly connected with drill string 3.
As shown in figure 3, for AA sections in Fig. 2；20 barrel minimum position of interior camcylinder and 30 barrel of outer camcylinder are most
Big position corresponds to, and 20 barrel maximum position of interior camcylinder is corresponding with 30 barrel minimum position of outer camcylinder, 10 axis of main shaft
It is overlapped with 3 axis of drill string；Fig. 3 further illustrate in Fig. 1 static state can when rotary steering drilling tool 1 is in hold angle state partially,
Drill bit 2 is in drill string 3 on same axis.
As shown in figure 4, rotary steering drilling tool 1 can be cutd open partially for the static state for crossing 10 axis of main shaft in Fig. 1 when deflecting state
Face；20 barrel minimum position of interior camcylinder is corresponding with 30 barrel minimum position of outer camcylinder, and 20 barrel of interior camcylinder is most
Big position is corresponding with 30 barrel maximum position of outer camcylinder, and 10 axis of main shaft is upwardly deviated from 3 axis of drill string, is fixed with main shaft 10
The drill bit 2 of connection upwardly biases, and targetedly cuts the borehole wall in top；Fig. 4 explains static state in Fig. 1 can inclined rotary steerable drilling
It, can the targetedly unilateral cutting borehole wall when tool 1 is in the form of deflecting state.In Fig. 3, the borehole wall is contacted and is rubbed with round buss 40
It wipes；Retaining mechanism 60A is in the unlocked state, for when 10 rotary drilling of main shaft, interior camcylinder 20 not to be in company with rotation；Locking
Mechanism 60B is in locking state, and outer camcylinder 30 is locked together with interior camcylinder 20, for maintaining 10 axis of main shaft inclined
From 3 axis of drill string, the deflecting state of setting is kept；Retaining mechanism 60C is in locking state, outer camcylinder 30 and round buss 40
It is locked together, the borehole wall in set direction is directed toward for main shaft 10 and drill bit 2.
Driving mechanism A12 can be a universal coupling 80, and connection pedestal 50 and main shaft 10 are used for the torsion of drill string 3
Square passes to drill bit 2.Round buss 40 is rotatable to be socketed on pedestal 50.Pedestal 50 is fixedly connected with drill string 3.
As shown in figure 5, for BB sections in Fig. 4,20 barrel minimum position of interior camcylinder and 30 barrel of outer camcylinder are most
Small position corresponds to, and 20 barrel maximum position of interior camcylinder is corresponding with 30 barrel maximum position of outer camcylinder, 10 axis of main shaft
It is upwardly deviated from 3 axis of drill string, drill bit 2 is made to be offset to the upside borehole wall；Fig. 5 further illustrates static state in Fig. 1 can inclined rotary steering
It, can the targetedly unilateral cutting borehole wall when drilling tool 1 is in the form of deflecting state.
As shown in fig. 6, for CC sections in Fig. 4,20 barrel minimum position of interior camcylinder and 30 barrel of outer camcylinder are most
Small position corresponds to, and 20 barrel maximum position of interior camcylinder is corresponding with 30 barrel maximum position of outer camcylinder, 10 axis of main shaft
Deviate 3 axis of drill string, drill bit 2 is biased to the upside borehole wall.Driving mechanism B42, can between outer camcylinder 30 and round buss 40
Controlled driving round buss 40 is relatively rotated with outer camcylinder 30；In boring deflecting in fact, when drill bit 2 deviates single cutting side of setting
Xiang Shi, retaining mechanism 60C are temporarily unlocked, and driving mechanism B42 drives outer camcylinder 30 that relative rotation occurs with round buss 40,
Drill bit 2 is set to be biased to the borehole wall in set direction always.
As shown in fig. 7, retaining mechanism 60A, retaining mechanism 60B, retaining mechanism 60C can be friction-type retaining mechanisms 60；
Friction-type retaining mechanism 60 includes cavity 62, thrust mechanism 64, brake pad 66, rubbing surface 68；Thrust mechanism 64 can be in cavity 62
Inside move back and forth, pushes the brake pad 66 being attached thereto to squeeze or be detached from rubbing surface 68, for realizing locking or unlocked state.
As shown in figure 8, retaining mechanism 70A, retaining mechanism 70B, can also be wedged type retaining mechanism 70；Wedged type is locked
Mechanism 70 includes cavity 72, thrust mechanism 74, movable block tongue 76, card slot 78；Thrust mechanism 74 can move back and forth in cavity 72,
The movable block tongue 76 being attached thereto is pushed to insert or pull out card slot 78, for realizing locking or unlocked state.
As shown in figure 9, driving mechanism A12 can be a universal coupling 80, connection pedestal 50 and main shaft 10, being used for will
The torque of drill string 3 passes to drill bit 2.Universal coupling 80 can be it is such, including sequentially connected upper connecting fork 82, connection
Axis 84 and lower connecting fork 86；Mandrel 52 in pedestal 50 is connect with upper connecting fork 82, and upper connecting fork 82 uses ten with connecting shaft 84
Word axis connection, with lower connecting fork 86 by cross axis connection, lower connecting fork 86 is connect connecting shaft 84 with main shaft 10；The rotation of drill string 3
Turn that pedestal 50 fixed thereto is driven to rotate, then drive main shaft 10 to rotate by universal coupling 80, and then drives and main shaft
10 drill bits 2 being fixedly connected rotate.The torque that the rotation of drill string 3 generates acts on drill bit 2 by universal coupling 80 and main shaft 10
Realize the cutting to rock stratum.
The present invention also provides it is static can rotary steering drilling tool 1 partially guidance method.
Static state can rotary steering drilling tool 1 include partially angle holding drilling guidance method, include the following steps, such as Fig. 2,3
It is shown.
Step A1, preparation stage.
Stop boring, half meter of 2 lift-off shaft bottom of drill bit makes retaining mechanism 60A be in locking state, and interior camcylinder 20 can be in company with master
Axis 10 rotates；Retaining mechanism 60B is in the unlocked state, can relative rotation between outer camcylinder 30 and interior camcylinder 20；Lock
Tight mechanism 60C is in locking state, and outer off-centre operation is fixed together with round buss 40, because the borehole wall is contacted and rubbed with round buss 40
It wipes, round buss 40 can remains stationary.
Step A2, adjustment static state can partially rotary steering drilling tool 1, so that 10 axis of main shaft is overlapped with 3 axis of drill string.
Main shaft 10 is set to rotate, interior camcylinder 20 is rotated in company with main shaft 10, until 20 barrel minimum position of interior camcylinder
Corresponding with 30 barrel maximum position of outer camcylinder, 20 barrel maximum position of interior camcylinder is minimum with 30 barrel of outer camcylinder
Position corresponds to, and retaining mechanism 60A unlocks, retaining mechanism 60B lockings, retaining mechanism 60C unlocks, main shaft 10 stops rotating, such as Fig. 2
It is shown.At this moment, 10 axis of main shaft is overlapped with 3 axis of drill string, and drill bit 2 is not biased to specific direction, and then, drill bit 2 can be steady
Tiltedly drilling.In addition, in angle holding drilling, retaining mechanism 60A can also be locked, and retaining mechanism 60C can also be locked, and can also keep main
10 axis of axis is overlapped with 3 axis of drill string.
In addition, in step A2, by being appropriately arranged with retaining mechanism 60A, retaining mechanism 60B, retaining mechanism 60C, drive
Mechanism B42 drives outer camcylinder 30 to rotate, and keeps 30 barrel minimum position of outer camcylinder maximum with 20 barrel of interior camcylinder
Position corresponds to, and also can reach makes 10 axis of main shaft be overlapped with 3 axis of drill string.
Static state can rotary steering drilling tool 1 further include partially deflecting drilling guidance method, include the following steps, as Fig. 4,
5, shown in 6.
Step B1, preparation stage.
Stop boring, half meter of 2 lift-off shaft bottom of drill bit makes retaining mechanism 60A be in locking state, and interior camcylinder 20 can be in company with master
Axis 10 rotates；Retaining mechanism 60B is in the unlocked state, can relative rotation between outer camcylinder 30 and interior camcylinder 20；Lock
Tight mechanism 60C is in locking state, and outer off-centre operation is fixed together with round buss 40, because the borehole wall is contacted and rubbed with round buss 40
It wipes, round buss 40 can remains stationary.
Step B2, adjustment static state can partially rotary steering drilling tool 1, make 10 axis runout drill string of main shaft, 3 axis, drill bit 2
It is offset to the borehole wall of direction initialization.
Main shaft 10 is set to rotate, interior camcylinder 20 is rotated in company with main shaft 10, until 20 barrel minimum position of interior camcylinder
Corresponding with 30 barrel minimum position of outer camcylinder, 20 barrel maximum position of interior camcylinder is maximum with 30 barrel of outer camcylinder
Position corresponds to, and at this moment, 10 axis of main shaft, drill bit 2 deviate 3 axis of drill string, retaining mechanism 60B lockings, and retaining mechanism 60C is unlocked,
Main shaft 10 continues to rotate, and interior camcylinder 20 and outer camcylinder 30 are rotated in company with main shaft 10, until drill bit 2 is offset to setting side
To the borehole wall, retaining mechanism 60A unlock, retaining mechanism 60C lockings, drill bit 2 is offset to the borehole wall of direction initialization, to increase drill bit
2 unilateral cutting realizes the control to 2 drilling direction of drill bit, and then achievees the purpose that guiding.
In addition, interior camcylinder 20 is rotated in company with main shaft 10, until 20 barrel minimum position of interior camcylinder and outer bias
30 barrel minimum position of cylinder corresponds to, 20 barrel maximum position of interior camcylinder and 30 barrel maximum position pair of outer camcylinder
It answers, keeps main shaft 10 axis runout drill string, 3 axis farthest, can reach static state can 1 maximum deflecting ability of inclined rotary steering drilling tool.
Also it can obtain that different to be less than maximum deflecting ability various by adjusting interior camcylinder 20 and 30 corresponding position of outer camcylinder
Deflecting ability.
Step B3 makes the direction of 10 axis runout drill string of main shaft, 3 axis maintain direction initialization in drilling.
In drilling, whether the direction for constantly detecting 10 axis runout drill string of main shaft, 3 axis deviates direction initialization；Work as main shaft
Direction initialization is deviateed in the direction of 10 axis runout drill string, 3 axis, starts driving mechanism B42, temporarily unlocks retaining mechanism 60C, drives
Motivation structure B42 drives outer camcylinder 30 to be relatively rotated with round buss 40, to the direction of 10 axis runout drill string of main shaft, 3 axis
Restore to be directed toward direction initialization, retaining mechanism 60C lockings, driving mechanism B42 is closed.
In deflecting drilling process, rotary steerable tool may deviate the biased direction of setting, by driving round buss 40
It is relatively rotated with outer camcylinder 30, the direction of 10 axis runout drill string of main shaft, 3 axis can be maintained to be directed toward the biasing of setting always
Direction.
In addition, in step B2, by being appropriately arranged with retaining mechanism 60A, retaining mechanism 60B, retaining mechanism 60C, drive
Mechanism B42 drives outer camcylinder 30 to rotate, and keeps 30 barrel minimum position of outer camcylinder minimum with 20 barrel of interior camcylinder
Position corresponds to, and interior camcylinder 20 is then made to be rotated with 30 assembly of outer camcylinder, also can reach 10 axis runout of main shaft brill
It is directed toward the borehole wall of direction initialization in the direction of 3 axis of column.
The above is only presently preferred embodiments of the present invention, but it is understood that, the invention is not limited in disclosed
Embodiment and component, on the contrary, it is intended to cover be included within the spirit and scope of appended claims various changes
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 state can inclined rotary steering drilling tool, including, pedestal（50）, main shaft（10）, interior camcylinder（20）, outer inclined
Heart cylinder（30）, round buss（40）, driving mechanism A（12）, retaining mechanism（60）A, retaining mechanism（60）B, retaining mechanism（60）
C, driving mechanism B（42）；Pedestal（50）It is fixedly connected with drill string（3）；Main shaft（10）One end is fixedly connected with drill bit（2）, main shaft（10）
The other end connects driving mechanism A（12）；Driving mechanism A（12）It can driving spindle（10）Rotation；
It is characterized in that, interior camcylinder（20）It is rotatable to be socketed in main shaft（10）On；Outer camcylinder（30）It is rotatable
It is socketed in interior camcylinder（20）On；Round buss（40）One end is rotatable to be socketed in outer camcylinder（30）On, round buss
（40）The other end is rotatable to be socketed in pedestal（50）On；Retaining mechanism（60）A is set to main shaft（10）With interior camcylinder
（20）Between, it can be interior camcylinder（20）With main shaft（10）It is locked together；Retaining mechanism（60）B is set to interior camcylinder
（20）With outer camcylinder（30）Between, it can be outer camcylinder（30）With interior camcylinder（20）It is locked together；Locking machine
Structure（60）C is set to outer camcylinder（30）With round buss（40）Between, it can be round buss（40）With outer camcylinder（30）Lock
Tightly together；Driving mechanism B（42）It is set to outer camcylinder（30）With round buss（40）Between, it can controlled driving round buss
（40）Relatively outer camcylinder（30）Rotation.
2. static state according to claim 1 can inclined rotary steering drilling tool, it is characterised in that：Interior camcylinder（20）Cylinder
Wall minimum wall thickness (MINI W.) and outer camcylinder（30）Barrel minimum wall thickness (MINI W.) is equal；And interior camcylinder（20）Barrel thickest with it is outer
Camcylinder（30）Barrel thickest is equal.
3. static state according to claim 2 can inclined rotary steering drilling tool, it is characterised in that：Driving mechanism A（12）It is
One universal coupling（80）；Pedestal（50）It further include a mandrel（52）, mandrel（52）It is fixedly connected on pedestal（50）It is interior, position
In drill string（3）Close to drill string on axis（3）One end；Universal coupling（80）Connecting mandrel（52）With main shaft（10）.
4. static state according to claim 2 can inclined rotary steering drilling tool, it is characterised in that：Driving mechanism A（12）It is
Turbine.
5. can inclined rotary steering drilling tool according to 1,2,3,4 any one of them static state of claim, it is characterised in that：Locking
Mechanism（60）A, and/or retaining mechanism（60）B, and/or retaining mechanism（60）C is friction-type retaining mechanism（60）；Friction-type is locked
Tight mechanism（60）Including cavity（62）, thrust mechanism（64）, brake pad（66）, rubbing surface（68）；Thrust mechanism（64）It can be in chamber
Body（62）Inside move back and forth, pushes the brake pad being attached thereto（66）Squeeze or be detached from rubbing surface（68）.
6. static state according to claim 5 can inclined rotary steering drilling tool, it is characterised in that：Retaining mechanism（60）A's
Cavity（62）It is arranged in interior camcylinder（20）Thickest position in cylinder, rubbing surface（68）It is arranged in main shaft（10）Barrel corresponds to
Position periphery；Retaining mechanism（60）The cavity of B（62）It is arranged in outer camcylinder（30）Thickest position in cylinder, rubbing surface
（68）It is arranged in interior camcylinder（20）Barrel corresponding position periphery；Retaining mechanism（60）The cavity of C（62）Setting is eccentric outside
Cylinder（30）Barrel thickest position, rubbing surface（68）It is arranged in round buss（40）Barrel corresponding position inner circumferential.
7. can inclined rotary steering drilling tool according to 1,2,3,4 any one of them static state of claim, it is characterised in that：Locking
Mechanism（70）A, and/or retaining mechanism（70）B is wedged type retaining mechanism（70）；Wedged type retaining mechanism（70）Including cavity
（72）, thrust mechanism（74）, movable block tongue（76）, card slot（78）；Thrust mechanism（74）It can be in cavity（72）Inside move back and forth, pushes away
The dynamic movable block tongue being attached thereto（76）Insert or pull out card slot（78）.
8. static state according to claim 7 can inclined rotary steering drilling tool, it is characterised in that：Retaining mechanism（70）A's
Cavity（72）It is arranged in interior camcylinder（20）Thickest position in cylinder, card slot（78）It is arranged in main shaft（10）Barrel corresponds to position
Set periphery；Retaining mechanism（70）The cavity of B（72）It is arranged in outer camcylinder（30）Thickest position in cylinder, card slot（78）If
It sets in interior camcylinder（20）Barrel corresponding position periphery, card slot（78）Quantity is two, and one is arranged in interior camcylinder
（20）Barrel thickest position；One is arranged in interior camcylinder（20）Barrel minimum wall thickness (MINI W.) position.
9. can inclined rotary steering drilling tool according to 1,2,3,4,6,8 any one of them static state of claim, it is characterised in that：
Retaining mechanism（60）A uses electric drive；Retaining mechanism（60）B uses electric drive；Retaining mechanism（60）C is driven using electric power
It is dynamic；Driving mechanism B（42）Use electric drive.
10. according to 1,2,3,4,6,8 any one of them static state of claim can inclined rotary steering drilling tool, feature exists
In：Retaining mechanism（60）A is driven using mud；Retaining mechanism（60）B is driven using mud；Retaining mechanism（60）C uses mud
Driving；Driving mechanism B（42）It is driven using mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665841.2A CN108661559A (en) | 2018-06-26 | 2018-06-26 | Static state can inclined rotary steering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665841.2A CN108661559A (en) | 2018-06-26 | 2018-06-26 | Static state can inclined rotary steering drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661559A true CN108661559A (en) | 2018-10-16 |
Family
ID=63772287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810665841.2A Withdrawn CN108661559A (en) | 2018-06-26 | 2018-06-26 | Static state can inclined rotary steering drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610177A (en) * | 2021-01-14 | 2021-04-06 | 长江大学 | Extrusion device and extrusion operation method for abandoned well casing recovery operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471674A (en) * | 1982-09-30 | 1984-09-18 | Judy Doss | Spinning tool for pipe, rod and cylinder rotation |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN102900364A (en) * | 2012-09-20 | 2013-01-30 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN106677703A (en) * | 2016-12-23 | 2017-05-17 | 西安石油大学 | Eccentric mechanism of dynamic pointing type rotary guiding well-drilling tool |
-
2018
- 2018-06-26 CN CN201810665841.2A patent/CN108661559A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471674A (en) * | 1982-09-30 | 1984-09-18 | Judy Doss | Spinning tool for pipe, rod and cylinder rotation |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN102900364A (en) * | 2012-09-20 | 2013-01-30 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN106677703A (en) * | 2016-12-23 | 2017-05-17 | 西安石油大学 | Eccentric mechanism of dynamic pointing type rotary guiding well-drilling tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610177A (en) * | 2021-01-14 | 2021-04-06 | 长江大学 | Extrusion device and extrusion operation method for abandoned well casing recovery operation |
| CN112610177B (en) * | 2021-01-14 | 2021-09-28 | 长江大学 | Extrusion device and extrusion operation method for abandoned well casing recovery operation |
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Application publication date: 20181016 |