CN110617011A - Rotary steering drilling tool based on weight-on-bit steering transmission structure - Google Patents
Rotary steering drilling tool based on weight-on-bit steering transmission structure Download PDFInfo
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- CN110617011A CN110617011A CN201911074897.1A CN201911074897A CN110617011A CN 110617011 A CN110617011 A CN 110617011A CN 201911074897 A CN201911074897 A CN 201911074897A CN 110617011 A CN110617011 A CN 110617011A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 121
- 238000005553 drilling Methods 0.000 title claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary steering drilling tool based on a weight on bit steering transmission structure, which belongs to the technical field of drilling devices and comprises a weight on bit steering transmission structure, a torque transmission shaft and a rotary steering mechanism; the bit pressure steering transmission structure is a cambered surface contact structure or a spherical hinge structure and is used for bearing bit pressure; the torque transmission shaft comprises a cardan shaft or a flexible shaft and is used for transmitting torque; in the rotary steering drilling process, the upper drilling tool transmits the bit pressure to the rotary steering mechanism through the bit pressure steering transmission structure and further transmits the bit pressure to the drill bit; the upper drill transmits torque to the rotary steering mechanism and further to the drill bit via a torque transmission shaft. The rotary steering drilling tool based on the bit pressure steering transmission structure provided by the invention realizes the separation of bit pressure transmission and torque transmission on the premise of not influencing the normal function of rotary steering, and is convenient for realizing rotary steering composite drilling by combining with an underground motor.
Description
Technical Field
The invention relates to the technical field of drilling devices, in particular to a rotary steering drilling tool based on a weight-on-bit steering transmission structure.
Background
The conventional push-type rotary steering drilling tool generally depends on a first centralizer to realize the centralization of a near drill bit, and a flexible joint is arranged behind the first centralizer, so that a drilling tool has certain flexibility, and although the flexible joint can improve the build-up rate of the rotary steering drilling tool, the flexible joint occupies a large length space and can become a drilling sticking factor when encountering downhole complexity, so that the rotary steering drilling tool cannot be well combined with a downhole motor.
In order to solve the problems, the conventional method realizes the combined operation with a rotary steering drilling tool and a downhole motor by shortening a flexible joint and arranging the downhole motor behind the flexible joint, but the reduction of the flexible joint can cause the reduction of the tool build-up rate, and meanwhile, the problem of drilling sticking in a complex downhole can not be effectively solved. In addition, the centralizer of the rotary steerable drilling tool needs to be positioned between the rotary steerable biasing mechanism and the flexible joint. When the composite drilling is carried out, a downhole motor drilling tool or other downhole power tools are arranged behind the flexible joints, so that the torque force of the downhole power tools must drive the flexible joints, the centralizers and the rotary guide short joints below the flexible joints. Significant downhole motor torque losses are incurred during drilling, which can result in insufficient downhole motor output torque or jamming when encountering downhole complications.
In view of the above problems, any optimization based on the prior art is difficult to solve fundamentally. Mechanical change order with flexible festival and centralizer, set up the centralizer on motor shell in the pit, also can only follow the safety problem of solving to a certain extent, nevertheless make the rotation guidance lose dynamic stability, under the condition that does not have nearly drill bit fulcrum, make the slope descend by a wide margin, the security reduces.
Disclosure of Invention
The invention aims to provide a rotary steering drilling tool based on a weight-on-bit steering transmission structure, which realizes the separate transmission of weight-on-bit and torque through a torque transmission shaft. The rotary steering composite drilling machine solves the problems in the prior art, realizes the separation of the bit pressure transmission and the torque transmission on the premise of not influencing the normal function of the rotary steering, is convenient to realize rotary steering composite drilling by combining an underground motor, and increases the safety. In addition, the bit pressure steering transmission structure does not need large bending moment or even bending moment when steering, so that the thrust required by the thrust arm can be reduced in the rotary steering drilling process.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a rotary steering drilling tool based on a weight on bit steering transmission structure, which comprises the weight on bit steering transmission structure, a torque transmission shaft and a rotary steering mechanism, wherein the weight on bit steering transmission structure is arranged on the rotary steering mechanism; the bit pressure steering transmission structure is a cambered surface contact structure or a spherical hinge structure and is used for transmitting bit pressure; the torque transfer shaft comprises a cardan shaft or a flexible shaft; in the rotary steering drilling process, the upper drilling tool transmits the bit pressure to the rotary steering mechanism through the bit pressure steering transmission structure and further transmits the bit pressure to the drill bit; the upper drill transmits torque to the rotary steering mechanism and further to the drill bit via a torque transmission shaft. The drilling tool comprises a drilling tool body, a drilling motor stator shell, a drilling pressure steering transmission structure, a torque transmission shaft and a drilling pressure steering transmission structure, wherein the drilling tool body is arranged on the drilling tool body; the drilling pressure steering transmission structure and the lower end of the torque transmission shaft are respectively connected with the rotary guide mechanism and respectively transmit drilling pressure and torque to the rotary guide mechanism, or when the drilling pressure steering transmission structure is of a spherical hinge structure, the upper part of a spherical hinge ball head is connected with a downhole motor rotor through the torque transmission shaft, so that the motor rotor transmits the torque to the spherical hinge ball head through the torque transmission shaft, a motor stator shell transmits the drilling pressure to the spherical hinge ball head through a spherical hinge shell, and finally the spherical hinge ball head transmits the drilling pressure to the rotary guide mechanism.
Optionally, the drive shaft comprises a lower drive shaft, a middle drive shaft and an upper drive shaft, the lower drive shaft and the middle drive shaft are in threaded connection, and the middle drive shaft and the upper drive shaft are integrally manufactured.
Optionally, the rotary steering biasing mechanism includes a non-rotary biasing unit, the non-rotary biasing unit includes 3 sets of pushing systems respectively driven by hydraulic pressure, and the non-rotary biasing unit is further provided with a control circuit and a rectifying circuit.
Optionally, a non-contact energy transmission device is arranged between the middle driving shaft and the non-rotation biasing unit, and the non-contact energy transmission device includes an energy emission mechanism and an energy receiving mechanism, the energy emission mechanism is fixedly connected with the middle driving shaft, and the energy receiving mechanism is fixedly connected with the non-rotation biasing unit.
Optionally, an energy supply module is arranged in the upper drive shaft, and the energy supply module can provide alternating current for the energy emitting mechanism.
Optionally, three groups of piston cylinders are arranged at intervals in the radial direction of the non-rotating offset unit, the piston cylinders are connected with pistons, and wing ribs are arranged on the outer sides of the pistons; the wall of the non-rotating offset unit is provided with a hydraulic system, the hydraulic system comprises a hydraulic pump connected with a motor, a hydraulic power accommodating cavity and a liquid return storage cavity, the motor and the hydraulic pump are arranged in the hydraulic power accommodating cavity, the piston cylinder is communicated with an outlet of the hydraulic pump, and the piston can move towards or away from the axis of the driving shaft under the liquid supply effect of the hydraulic pump and enables the wing rib to push against the well wall.
Optionally, the rotary guiding mechanism is provided with an attitude measurement module for measuring a gravity tool face angle and a near-bit well angle of the non-rotating offset unit. Further the attitude measurement module is disposed in a sidewall of the non-rotating bias unit.
Optionally, the weight on bit steering transmission structure is a cambered surface contact structure or a spherical hinge structure.
As shown in fig. 4 and 5, the weight on bit steering transfer mechanism is not directly connected to the downhole motor. Optionally, the lower end of the torque transmission shaft is coaxially connected with a drilling tool at the lower end of the weight on bit steering transmission structure, and the upper end of the torque transmission shaft is coaxially connected with the upper end of the weight on bit steering transmission structure and used for transmitting bending moment.
Optionally, the weight on bit steering transmission structure is a ball joint.
Compared with the prior art, the invention has the following technical effects:
the centralizer is arranged at the lower end of the stator shell assembly of the underground motor, so that the output torque of an underground motor drilling tool in the complex underground is greatly reduced, and the flexible joint below the underground motor is cancelled and replaced by a drilling pressure steering transmission structure, so that the bending moment of a rear drilling tool is prevented from being transmitted forwards, and the deflection of rotary guide is not influenced. The invention achieves the purpose of improving the safety of the composite drilling on the premise of not influencing the normal function of the rotary steering. In addition, for a branch well, windowing sidetracking operation is needed, and aiming at the situation, the rigidity of the traditional flexible joint can be an obstacle of rotary steering sidetracking, so that the rotary steering offset mechanism can easily generate a corner by skillfully utilizing a bit pressure steering transmission structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic layout of the present invention;
FIG. 3 is a partial detailed cross-sectional view of the present invention;
FIG. 4 is a cross-sectional schematic view of another construction (cardan torque transmitting shaft) of the present invention;
FIG. 5 is a schematic cross-sectional view of another construction (flexible joint torque transmitting shaft) of the present invention;
the hydraulic steering device comprises a non-rotating biasing unit 1, a weight-on-bit steering transmission structure 101, a torque transmission shaft 102, a centralizer 111, an upper driving shaft 21, a middle driving shaft 22, a lower driving shaft 23, a primary drill collar pup joint 25, a wing rib 10, a liquid return storage chamber 11, a piston cylinder 12, a wing rib cover plate 13, a piston 14, an electrical connector 15, a hydraulic power module 4, a hydraulic pump 41, an electric motor 42, an energy transmitting mechanism 51, an energy receiving mechanism 52, a control circuit 54, an attitude measuring module 55, a second thrust bearing 81, a second centering bearing 82, a first centering bearing 83, a first thrust bearing 84, an energy supply module 118, a driving shaft circuit framework 119, a flow channel converter 176, a downhole motor rotor 132, a downhole motor stator housing 133, a flexible joint 134, and a drill bit 140.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a rotary steering drilling tool based on a weight-on-bit steering transmission structure, which realizes the separate transmission of weight-on-bit and torque through a torque transmission shaft. The rotary steering composite drilling machine solves the problems in the prior art, realizes the separation of the drilling pressure and the transmission of other axial force and the transmission of torque on the premise of not influencing the normal function of rotary steering, is convenient for combining an underground motor to realize rotary steering composite drilling, and increases the safety.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a rotary steering drilling tool based on a bit pressure steering transmission structure, which comprises a rotary steering mechanism, a non-rotating offset unit 1, a bit pressure steering transmission structure 101, a torque transmission shaft 102, a centralizer 111, an upper driving shaft 21, a middle driving shaft 22, a lower driving shaft 23, a primary side collar pup joint 25, a liquid return storage cavity 11, a wing rib 10, a piston cylinder 12, a piston 14, a wing rib cover plate 13, an electrical connector 15, a hydraulic power module 4, an electric motor 42, a hydraulic pump 41, an energy transmitting mechanism 51, an energy receiving mechanism 52, an attitude measuring module 55, a control circuit 54, a second thrust bearing 81, a second centralizing bearing 82, a first centralizing bearing 83, a first thrust bearing 84, an energy supply module 118, a driving shaft circuit framework 119, a flow channel converter 176, a downhole motor rotor 132 and a downhole motor stator shell 133, a flexible joint 134 and a drill bit 140. The rotary guide mechanism comprises a non-rotating offset unit 1 and driving shafts, wherein the driving shafts comprise a lower driving shaft 23, a middle driving shaft 22 and an upper driving shaft 21, the lower driving shaft 23 is in threaded connection with the middle driving shaft 22 and is used for transmitting torque and part of bit weight, and the middle driving shaft 22 and the upper driving shaft 21 are integrally manufactured. The non-rotating bias unit 1 comprises 3 sets of hydraulically driven pushing systems (3-4 sets of all the systems can be arranged), the non-rotating bias unit 1 is further provided with an attitude measurement module 55, a control circuit 54 and a rectification circuit, and the rectification circuit supplies power to the 3 sets of hydraulic systems and other circuits arranged on the non-rotating bias unit 1.
Specifically, a non-contact energy transmission device (a slip ring may also be used herein) is disposed between the middle driving shaft 22 and the non-rotating bias unit 1, the non-contact energy transmission device is divided into an energy transmitting mechanism 51 and an energy receiving mechanism 52, the energy transmitting mechanism 51 is fixedly connected to the middle driving shaft 22, the energy receiving mechanism 52 is fixedly connected to the non-rotating bias unit 1, an energy supply module 118 is further disposed in the upper driving shaft 21, and the energy supply module 118 is responsible for providing alternating current for the energy transmitting mechanism 51, so that energy is transmitted between the energy transmitting mechanism 51 and the energy receiving mechanism 52 through electromagnetic induction. The rotary steering system comprises a battery or a downhole turbine generator, the downhole turbine generator is used as a downhole power supply to supply power to the energy supply module 118, and the energy transmitted by the non-contact energy transmission device is used for driving the hydraulic system.
The bit pressure and the torque required by the drill bit for rock breaking are respectively transmitted to the drill bit 140 from top to bottom through the bit pressure steering transmission structure 101 and the torque transmission shaft 102 by the drill tool above, namely the drill tool above is transmitted to the drill tool below through the bit pressure steering transmission structure 101 and finally drives the drill bit 140 to break the rock by the drill tool above, the drill tool from top to bottom is connected by threads, the drill bit 140 is also connected to the drill tool at the lowest end by threads, the drill tool is a driving shaft, and the drill bit 140 is connected with the lower driving shaft 23 by threads.
The rotary guide mechanism changes the track of a well hole by means of a deflection control mechanism, the deflection control mechanism comprises at least one group of driving components, the driving components comprise at least three groups of piston cylinders 12, pistons 14 and wing ribs 10 which are arranged on a non-rotating bias unit 1 at intervals along the radial direction of the non-rotating bias unit 1, in addition, a hydraulic power module 4 is arranged on the cylinder wall of the non-rotating bias unit 1 of the static bias rotary guide, the hydraulic power module 4 comprises a hydraulic pump 41 connected with a motor 42, a hydraulic power accommodating cavity and a liquid return storage cavity 11, the motor 42 and the hydraulic pump 41 are arranged in the hydraulic power accommodating cavity, the motor drives the hydraulic pump to generate hydraulic pressure to drive the pistons 14, the piston cylinders 12 are communicated with an outlet of the hydraulic pump 41, and the pistons 14 can move towards or away from the axis of a driving shaft under the liquid supply effect of, and a rib cover plate 13 is arranged outside the rib 10 to realize the guiding. The guiding direction is the resultant thrust direction of all ribs 10.
The drilling pressure steering transmission structure is arranged between a driving shaft and a downhole motor stator shell 133, the drilling pressure steering transmission structure 101 is a spherical hinge structure, the lower end of the downhole motor stator shell 133 is a spherical hinge shell, a spherical hinge ball head is arranged in the spherical hinge shell, the upper part of the spherical hinge ball head is connected with a downhole motor rotor 132 through a torque transmission shaft 102, the lower part of the spherical hinge ball head is connected with the driving shaft of a rotary guide unit, and drilling torque is transmitted to the driving shaft of the guide unit through the torque transmission shaft 102 and the spherical hinge ball head by the downhole motor rotor 132 and is further transmitted to a drill 140. The drill pressure is transmitted to the spherical hinge ball head from the spherical hinge shell, transmitted to the rotary guide driving shaft from the spherical hinge ball head and further transmitted to the drill bit.
Further preferably, a bit pressure steering transmission structure 101 is arranged behind the rotary steering biasing mechanism, the bit pressure steering transmission structure 101 can be any number and combination of arc surface contact structures or spherical hinge structures, the arc surface can be any structure capable of realizing bit pressure transmission by means of the arc surface, the bit pressure steering transmission structure 101 can transmit torque by itself or by means of other internal torque transmission structures, and the torque transmission structure can be any torque transmission structure such as a flexible joint and a universal shaft. The weight-on-bit steering transmission structure 101 is used to transmit the weight-on-bit, which is transmitted to the drill bit 140 through its lower drilling tool, for breaking rock. The turning direction of the weight on bit steering transmission structure 101 is not directly controlled by a control mechanism, the rotary steering drilling tool generates a well track with controllable direction under the action of a rotary steering biasing mechanism below the weight on bit steering transmission structure 101, and the turning direction of the weight on bit steering transmission structure 101 only changes along with the change of the deflection direction of the well track.
The turning angle is the deflection of a drilling tool in front of the weight on bit steering transmission structure 101 relative to a drilling tool behind the weight on bit steering transmission structure 101 to the direction of increasing the inclination angle; or the drilling tool in front of the weight on bit steering transmission structure 101 deflects towards the direction that the inclination angle of the well is reduced relative to the drilling tool behind the weight on bit steering transmission structure 101; or the drilling tool in front of the weight steering transmission structure 101 deflects towards the azimuth angle increasing direction relative to the drilling tool behind the weight steering transmission structure 101; or the drilling tool in front of the weight steering transmission structure 101 deflects towards the direction of reducing the azimuth angle relative to the drilling tool behind the weight steering transmission structure 101; when the weight on bit is applied to the weight on bit steering transmission structure 101, the weight on bit steering transmission structure 101 will not bend or bend, and relatively speaking, the prior art uses a flexible joint to achieve the function, the flexible joint is a section of drilling tool with a diameter significantly smaller than that of the guide joint, and the flexible joint is used for transmitting the weight on bit and the torque, and the flexible joint is easy to deform or bend under the action of the weight on bit or the torque). When the rotary steerable drilling tool is performing steerable drilling, the weight-on-bit steering transmission structure 101 is in a rotating state, and the rotating state is self-rotation along the well axis. The weight on bit turns to and is provided with the runner that can overflow drilling fluid in the transmission structure 101, and the runner sets up in the inside of weight on bit turns to transmission structure 101, and runs through weight on bit turns to transmission structure 101 from top to bottom, and the method of setting up in inside includes but not limited to that the runner in the weight on bit turns to the transmission structure sets up the central point in weight on bit turns to transmission structure 101.
The electrical power required for the rotary steerable biasing mechanism is provided by a power module on top of the weight on bit steering transfer structure 101, which can deliver power to the rotary steerable biasing unit through a torque transfer structure via cabling or infinite energy transfer techniques.
A centralizer 111 is arranged within 1 meter below the weight steering transmission structure or within 2 meters above the weight steering transmission structure 101, so that the weight steering transmission structure 101 is in a relatively stable state during the rotation of a drill string, and alternating stress borne by the inside of the weight steering transmission structure 101 is reduced. The rotation angle of the weight on bit steering transfer structure 101 is limited by the limiting structure, so that the rotation angle of the weight on bit steering transfer structure is controlled within a maximum amplitude a degrees, and the value range of a is between 0 and 4.
The cable passes through the inner part or the outer part of the weight on bit steering transmission structure 101, so that the upper part and the lower part of the weight on bit steering transmission structure 101 can realize the transmission of electric energy. Because the weight-on-bit steering transmission structure 101 enables the drilling tool to generate a certain rotation angle, in order to more accurately control the track of the borehole, the attitude measurement module is arranged in front of the weight-on-bit steering transmission structure 101, so that more accurate near-bit attitude can be obtained.
The centralizer 111 is arranged near the lowest end of the casing assembly of the downhole power drill, namely the centralizer 111 is arranged at the position within 1.5 meters above the lowest end face of the casing assembly of the downhole power drill, the rotor assembly is a part which is driven by power to rotate in the downhole power drill, the casing assembly is a part which is connected with an upper drill string and keeps synchronous rotation in the downhole power drill, and the centralizer 111 is generally arranged at the position within 0.5 meters above the lowest end face of the casing assembly of the downhole power drill.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A rotary steering drilling tool based on a weight-on-bit steering transmission structure is characterized in that: the device comprises a bit pressure steering transmission structure, a torque transmission shaft and a rotary guide mechanism; the bit pressure steering transmission structure is a cambered surface contact structure or a spherical hinge structure and is used for transmitting bit pressure; the torque transfer shaft comprises a cardan shaft or a flexible shaft; in the rotary steering drilling process, the upper drilling tool transmits the bit pressure to the rotary steering mechanism through the bit pressure steering transmission structure and further transmits the bit pressure to the drill bit; the upper drilling tool transmits the torque to the rotary guide mechanism through the torque transmission shaft and further transmits the torque to the drill bit; the upper drilling tool is any drilling tool including, but not limited to, downhole motors, logging instruments, pulsers.
2. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 1, wherein: the upper drilling tool is a downhole motor, a downhole motor stator shell is arranged outside a downhole motor rotor, the lower end of the downhole motor stator shell is connected with a bit pressure steering transmission structure, the lower end of the downhole motor rotor is connected with a torque transmission shaft, and the bit pressure steering transmission structure is arranged on the outer side of the torque transmission shaft; the drilling pressure steering transmission structure and the lower end of the torque transmission shaft are respectively connected with the rotary guide mechanism and respectively transmit drilling pressure and torque to the rotary guide mechanism, or when the drilling pressure steering transmission structure is of a spherical hinge structure, the upper part of a spherical hinge ball head is connected with a downhole motor rotor through the torque transmission shaft, so that the motor rotor transmits the torque to the spherical hinge ball head through the torque transmission shaft, a motor stator shell transmits the drilling pressure to the spherical hinge ball head through a spherical hinge shell, and finally the spherical hinge ball head transmits the drilling pressure to the rotary guide mechanism.
3. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 1, the rotary steerable mechanism comprising at least a non-rotating biasing unit and a drive shaft having the non-rotating biasing unit coupled externally thereto, the drive shaft having a drill bit coupled to an end thereof.
4. The weight on bit steering transfer configuration-based rotary steerable drilling tool of claim 2, wherein a centralizer is attached to an end of the downhole motor stator housing within 1.5 meters of a lower face of the motor stator housing.
5. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 3, wherein: the non-rotating biasing unit comprises 3-4 sets of pushing systems which are respectively driven by hydraulic pressure, and a control circuit is further arranged on the non-rotating biasing unit and used for controlling the 3-4 sets of hydraulic systems.
6. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 3, wherein: a non-contact energy transmission device is arranged between the driving shaft and the non-rotation biasing unit and comprises an energy transmitting mechanism and an energy receiving mechanism, the energy transmitting mechanism is fixedly connected with the middle driving shaft, and the energy receiving mechanism is fixedly connected with the non-rotation biasing unit.
7. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 5, wherein: three groups of piston cylinders are arranged at intervals in the radial direction of the non-rotating offset unit, the piston cylinders are connected with pistons, and wing ribs are arranged on the outer sides of the pistons; the wall of the non-rotating offset unit is provided with a hydraulic system, the hydraulic system comprises a hydraulic pump connected with a motor, a hydraulic power accommodating cavity and a liquid return storage cavity, the motor and the hydraulic pump are arranged in the hydraulic power accommodating cavity, the piston cylinder is communicated with an outlet of the hydraulic pump, and the piston can move towards or away from the axis of the driving shaft under the liquid supply effect of the hydraulic pump and enables the wing rib to push against the well wall.
8. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 1, wherein: and the rotary guide mechanism is provided with an attitude measurement module for measuring the gravity tool face angle and the near-bit well inclination angle of the non-rotary offset unit.
9. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 1, wherein: the lower end of the torque transmission shaft is coaxially connected with a drilling tool at the lower end of the weight-on-bit steering transmission structure, and the upper end of the torque transmission shaft is coaxially connected with the upper end of the weight-on-bit steering transmission structure and used for transmitting bending moment.
10. The weight on bit steering transfer structure based rotary steerable drilling tool of claim 9, wherein: the drilling pressure steering transmission structure is a spherical hinge.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/596,203 US20220316279A1 (en) | 2019-06-06 | 2020-06-08 | Easy building-up hybrid rotary steerable drilling system |
| EP20817909.3A EP3981945B1 (en) | 2019-06-06 | 2020-06-08 | Hybrid rotary steerable drilling system capable of easily deflecting |
| AU2020288277A AU2020288277B2 (en) | 2019-06-06 | 2020-06-08 | Hybrid rotary steerable drilling system capable of easily deflecting |
| CA3140701A CA3140701A1 (en) | 2019-06-06 | 2020-06-08 | Easy building-up hybrid rotary steerable drilling system |
| PCT/CN2020/094998 WO2020244671A1 (en) | 2019-06-06 | 2020-06-08 | Hybrid rotary steerable drilling system capable of easily deflecting |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490984 | 2019-06-06 | ||
| CN2019104909849 | 2019-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617011A true CN110617011A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911074897.1A Pending CN110617011A (en) | 2019-06-06 | 2019-11-06 | Rotary steering drilling tool based on weight-on-bit steering transmission structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110617011A (en) |
| WO (1) | WO2020244665A1 (en) |
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| CN111173452A (en) * | 2020-02-21 | 2020-05-19 | 万晓跃 | Static offset rotary steering drilling tool with sandwich cylinder structure |
| WO2020244671A1 (en) * | 2019-06-06 | 2020-12-10 | 万晓跃 | Hybrid rotary steerable drilling system capable of easily deflecting |
| CN112523700A (en) * | 2020-11-30 | 2021-03-19 | 中国石油天然气集团有限公司 | Wire passing universal shaft assembly and wire passing method |
| CN112576182A (en) * | 2020-11-30 | 2021-03-30 | 中国石油天然气集团有限公司 | Wire passing motor drilling tool |
| CN113404429A (en) * | 2021-07-19 | 2021-09-17 | 万晓跃 | Composite guiding drilling tool and method |
| WO2022033610A1 (en) * | 2020-08-10 | 2022-02-17 | 万晓跃 | Short radius, controllable track drilling tool and composite guiding and drilling tool |
| WO2022199666A1 (en) * | 2021-03-25 | 2022-09-29 | 万晓跃 | Rotary steering drilling tool having self-adaptive support structure |
| WO2022206896A1 (en) * | 2021-04-02 | 2022-10-06 | 万晓跃 | High-reliability flexible drill rod |
| WO2023001119A1 (en) * | 2021-07-19 | 2023-01-26 | 徐术 | Rear directional radial drilling device |
Family Cites Families (7)
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|---|---|---|---|---|
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2019
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2020
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