CN113585971B - Guiding control device and rotary guiding drilling tool - Google Patents
Guiding control device and rotary guiding drilling tool Download PDFInfo
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- CN113585971B CN113585971B CN202111033493.5A CN202111033493A CN113585971B CN 113585971 B CN113585971 B CN 113585971B CN 202111033493 A CN202111033493 A CN 202111033493A CN 113585971 B CN113585971 B CN 113585971B
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 70
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a guide control device and a rotary guide drilling tool, which comprise an adjusting disc, an azimuth adjusting mechanism, an inclination adjusting mechanism and a sliding connection piece, wherein the azimuth adjusting mechanism is arranged on the adjusting disc; the adjusting disc comprises a shaft sleeve and a movable disc, and the movable disc is sleeved outside the shaft sleeve; a connecting piece is arranged between the movable disc and the shaft sleeve; the direction adjusting mechanism is connected with the shaft sleeve and drives the shaft sleeve to rotate; the inclination angle adjusting mechanism follows the shaft sleeve and is connected to the first disc surface of the movable disc, and the inclination angle adjusting mechanism drives the movable disc to swing around a set radial line; the sliding connection piece is connected with the movable disc in a sliding mode, the sliding connection piece slides on the movable disc relatively along the circumferential direction of the shaft sleeve, a second sliding groove used for being connected with the control rod is formed in the sliding connection piece, and the second sliding groove extends along the radial direction of the shaft sleeve. The invention sets respective adjusting mechanisms for the azimuth angle and the structural angle, and the control process is simple and stable.
Description
Technical Field
The invention relates to the technical field of guiding control, in particular to a guiding control device and a rotary guiding drilling tool.
Background
The rotary steering drilling technology enables a rotary steering system to flexibly adjust well deviation and direction by arranging a well bottom biasing mechanism, is particularly suitable for drilling of complex 3D wells and extended-reach wells, and greatly improves the quality and safety of drilling by high-precision track control. The directional rotary steering drilling system has the advantages that drilled boreholes are smooth, the well quality and safety are high, and the application is very wide.
Chinese patent CN113073939A discloses an internal pushing type rotary steering drilling tool, which comprises a housing body, an adjusting mechanism, a hydraulic driving mechanism, an adjusting wedge, an adjusting rod and a drill bit seat. Three groups of adjusting mechanisms, hydraulic control mechanisms and adjusting wedges are circumferentially arranged in the inner part of the shell body, the adjusting mechanisms, the hydraulic control mechanisms and the adjusting wedges of each group are axially arranged, and the adjusting mechanisms, the hydraulic control mechanisms and the adjusting wedges of each group follow the shell body; the adjusting mechanism is used for controlling the axial movement and displacement of the hydraulic driving mechanisms of the corresponding groups, and the hydraulic driving mechanisms are connected with the adjusting wedge blocks of the corresponding groups through pull rods. The upper end of the adjusting rod is provided with an adjusting ball seat which is positioned at the center of the three adjusting wedge block enclosing structures, a rotating fulcrum is arranged between the adjusting rod and the shell body, and the lower part of the adjusting rod is provided with a drill bit seat. When the rotary guide drilling machine works, the change of the movement direction and the movement stroke of the hydraulic control mechanism is driven by controlling the adjusting mechanism, so that the hydraulic control mechanism drives the adjusting wedge block to move periodically, the azimuth angle of the drill bit seat relative to the ground and the structural angle of the drill bit seat relative to the shell body are changed, and rotary guide drilling is realized.
However, in the above technical solutions, the adjustment of the azimuth angle and the structural angle requires the simultaneous control of the motion states of the respective sets of adjustment mechanisms, and the control process is complicated.
Disclosure of Invention
In order to solve at least one of the problems mentioned in the background art, the invention provides a guiding control device and a rotary guiding drilling tool, wherein respective adjusting mechanisms are arranged on an azimuth angle and a structural angle, and the control process is simple and stable.
In order to achieve the above object, in a first aspect, the present invention provides a steering control device comprising an adjustment dial, an azimuth adjustment mechanism, an inclination adjustment mechanism, and a sliding member; the adjusting disc comprises a shaft sleeve and a movable disc, and the movable disc is sleeved on the outer side of the shaft sleeve; a connecting piece is arranged between the movable disc and the shaft sleeve, a first end of the connecting piece is connected with the shaft sleeve, a second end of the connecting piece is hinged with a first position and a second position on the movable disc respectively, and the first position and the second position are arranged along the same set radial line of the shaft sleeve; the direction adjusting mechanism is connected with the shaft sleeve and drives the shaft sleeve to rotate; the inclination angle adjusting mechanism follows up with the shaft sleeve and is connected to a first disc surface of the movable disc, and the inclination angle adjusting mechanism drives the movable disc to swing around the set radial line; the sliding connection piece is connected with the movable disc in a sliding mode, the sliding connection piece is located on the movable disc along the circumferential direction of the shaft sleeve in a relative sliding mode, a second sliding groove used for being connected with a control rod is formed in the sliding connection piece, and the second sliding groove extends in the radial direction of the shaft sleeve.
As a further scheme of the first aspect of the present invention, the shaft sleeve and the movable disk are coaxially disposed, and the sliding connection members are provided in plural, and are all slidably connected to an outer edge of the movable disk; each sliding connection piece is provided with the second sliding chute, and the second sliding chute is arranged on one side, close to the second disc surface of the movable disc, of each sliding connection piece; the second disc surface and the first disc surface are positioned on the movable disc along the two opposite axial sides of the shaft sleeve, and the cross section of the second sliding groove is in a circular arc shape and is in sliding connection with a control ball head of the control rod.
As a further solution of the first aspect of the present invention, the connecting member includes a first pin, the first pin is disposed along the set radial line, and the first pin penetrates through the first position, the shaft sleeve and the second position to connect the shaft sleeve and the movable disk;
or, the connecting piece comprises two second pin shafts, each second pin shaft is arranged along the set radial line, one of the second pin shafts penetrates through the first position and the shaft sleeve, the other second pin shaft penetrates through the second position and the shaft sleeve, and the two second pin shafts are respectively connected with the shaft sleeve and the movable disc;
or the connecting piece comprises two supporting rods, the two supporting rods are symmetrically arranged on two opposite sides of the shaft sleeve, the first end of each supporting rod is fixedly connected with the shaft sleeve, and the second end of each supporting rod is in universal connection with the movable disc at the first position and the second position.
As a further aspect of the first aspect of the present invention, the orientation adjusting mechanism includes an orientation driving member and an orientation transmission assembly, the orientation transmission assembly is connected between the shaft sleeve and the orientation driving member, and the orientation driving member drives the shaft sleeve to rotate through the orientation transmission assembly; the inclination angle adjusting mechanism comprises an inclination angle driving piece and an inclination angle transmission assembly, the inclination angle transmission assembly is connected between the movable disc and the inclination angle driving piece, and the inclination angle driving piece drives the movable disc to swing through the inclination angle transmission assembly.
As a further solution of the first aspect of the present invention, the azimuth driving assembly includes a third spur gear, the third spur gear is coaxially connected to the shaft sleeve, and the azimuth driving member is connected to the third spur gear and drives the third spur gear to rotate.
As a further solution of the first aspect of the present invention, the azimuth driving member includes an azimuth driving motor, the azimuth driving member further includes a first spur gear, an output shaft of the azimuth driving motor is connected to the first spur gear, and the first spur gear is in meshing connection with the third spur gear;
the azimuth driving motor and the first straight gear are at least provided with one group, when the azimuth driving motor and the first straight gear are provided with a plurality of groups, the azimuth driving motor and the first straight gear are annularly arranged along the circumferential direction of the third straight gear, the azimuth driving motor of each group is connected with the first straight gear of the corresponding group, and the first straight gear is respectively in meshed connection with the third straight gear.
As a further solution of the first aspect of the present invention, the tilt angle transmission assembly includes a tilt angle adjusting nut and a tilt angle adjusting screw, both of which are disposed on a side of the third spur gear close to the first disk surface; the inclination angle adjusting screw is arranged in parallel to the axial direction of the shaft sleeve, a cantilever beam extending to the inclination angle adjusting screw is arranged on the shaft sleeve or the third straight gear, a threaded hole corresponding to the inclination angle adjusting screw is formed in the cantilever beam, and the inclination angle adjusting screw is in threaded connection with the threaded hole; the inclination angle adjusting nut is in threaded connection with a first end of the inclination angle adjusting screw rod, a second end of the inclination angle adjusting screw rod is in sliding connection with the first disc surface, and the inclination angle adjusting screw rod relatively slides on the first disc surface along the radial direction of the shaft sleeve; the inclination driving mechanism is connected with the inclination adjusting nut and drives the inclination adjusting nut to rotate.
As a further aspect of the first aspect of the present invention, the tilt driving member includes a tilt driving motor, and the tilt transmission assembly further includes a second spur gear and a fourth spur gear; the fourth straight-tooth internal gear is coaxially sleeved on the outer side of the third straight-tooth gear, the fourth straight-tooth internal gear and the third straight-tooth gear are arranged at intervals, the inclination angle adjusting nut is positioned between the fourth straight-tooth internal gear and the third straight-tooth gear, and an outer gear ring matched with inner teeth of the fourth straight-tooth internal gear is arranged on the periphery of the inclination angle adjusting nut; an output shaft of the inclination angle driving motor is connected with the second straight gear, the second straight gear is meshed with the inner teeth at the first end of the fourth straight gear, and the inner teeth at the second end of the fourth straight gear are meshed with the inclination angle adjusting nut;
the inclination driving motor with the second straight-teeth gear is provided with at least a set of, works as and is provided with the multiunit inclination driving motor with the second straight-teeth gear, multiunit inclination driving motor with the second straight-teeth gear ring the circumference of the internal tooth of the first end of fourth straight-teeth internal gear sets up, each group inclination driving motor connects and corresponds the group the second straight-teeth gear, each the second straight-teeth gear respectively with the internal tooth meshing of the first end of fourth straight-teeth internal gear is connected.
As a further scheme of the first aspect of the present invention, the present invention further comprises a first housing, wherein the first housing is hollow and has two open ends; first end fixed mounting in the first casing has the drive frame, the position driving piece with the inclination driving piece install in on the drive frame, the axle sleeve with the activity dish set up in second end in the first casing, fourth straight-tooth internal gear pass through the bearing install in middle part in the first casing, the third straight-tooth gear connect in the drive frame with between the axle sleeve.
In a second aspect, the invention provides a rotary steerable drilling tool, which comprises a second housing, a control rod, a valve core wedge, a drill bit steering tool and the steering control device, wherein the second housing is hollow with two open ends, and supports the second end of the first housing connected to the steering control device; a support ring is arranged on the second shell close to the first shell, the support ring supports and is connected with a shaft sleeve of the guide control device through a bearing, a control hole is formed in the support ring, a control rod penetrates through the control hole, the first end of the control rod is connected into a second sliding groove of the guide control device, and the second end of the control rod is connected with the valve core wedge block; the control rods, the control holes and the valve core wedge block are provided with a plurality of groups, the number of the control rods is equal to that of the sliding connection pieces of the guide control device, the control holes are uniformly arranged on the support ring along the circumferential direction of the shaft sleeve, the control rods penetrate through the control holes of the corresponding group, the first end of each control rod is connected into the second sliding groove of the sliding connection piece of the corresponding group, and the second end of each control rod is connected with the valve core wedge block of the corresponding group; the drill bit guiding tool is located at one end, far away from the first shell, of the second shell, an adjusting ball head is arranged at the first end of the drill bit guiding tool, the adjusting ball head corresponds to a space surrounded by the valve core wedges, the adjusting ball head is abutted to different valve core wedges in the reciprocating motion process of each valve core wedge, the second shell is provided with a bearing piece supporting the middle of the drill bit guiding tool, a drill bit connecting seat is arranged at the second end of the drill bit guiding tool, and the drill bit connecting seat is located outside the second shell.
The invention provides a steering control device and a rotary steering drilling tool. The guide control device is provided with an adjusting disc structure, the azimuth of the adjusting disc is driven to change through an azimuth adjusting mechanism, the azimuth angle of the guide executing piece is further changed, the inclination angle of the adjusting disc is driven to change through an inclination angle adjusting mechanism, the structural angle of the guide executing piece is further changed, the guide control device is independently controlled, the operation process is simple, and the control accuracy is high.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a guidance control apparatus provided in accordance with one possible embodiment of the present invention;
FIG. 2 is another perspective front view of a guidance control apparatus according to one possible embodiment of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at B;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
FIG. 5 is a schematic view of the fourth spur-internal gear of FIG. 1;
FIG. 6 is a schematic view of the structure of FIG. 1 at the adjustment disk;
FIG. 7 is a schematic structural view of the movable plate of FIG. 1;
FIG. 8 is a schematic structural view of the slipper of FIG. 1;
FIG. 9 is a schematic view of another angular configuration at the adjustment dial of FIG. 1;
FIG. 10 is a schematic view of the slider of FIG. 1;
FIG. 11 is a schematic view of the control lever of FIG. 1;
FIG. 12 is a front view of a rotary steerable drilling tool according to another possible embodiment of the present invention.
Description of reference numerals:
10-a steering control device; 20-a rotary steerable drilling tool;
100-a first housing;
110-azimuth drive; 111-a first straight gear; 113-a third spur gear; 1131-cantilever beam; 1132 — a third gear sleeve; 1133 — third ring gear;
120-a tilt angle drive; 122-a second spur gear; 124-a fourth straight-toothed internal gear; 1241-first gear ring; 1242-second toothed ring; 1243-fourth gear sleeve; 125-tilt adjustment nut; 126-a tilt angle adjusting screw; 127-a slipper; 1271-spherical recess; 1272-connecting hole;
130-shaft sleeve; 131-a movable disc; 1311-upper dish; 1312-lower wall; 1313-ring groove; 1314-a first chute; 132-a second pin;
140-a slide; 141-first trench sidewalls; 142-a second slot sidewall; 143-arc groove bottom; 144-positioning arc plate; 145-a second runner;
150-a drive frame;
200-a second housing;
210-a support ring;
220-a control lever; 221-a first connection segment; 222-a second connection segment; 223-a third connecting segment; 224-a control knob; 225-valve core rod attachment hole;
231-a valve core rod; 232-valve core wedge block;
240-a drill bit steering tool; 241-adjusting a ball head; 242-bit connecting seat.
Detailed Description
The azimuth angle and the structural angle of the drill bit need to be adjusted in the rotary guide drilling process, the position of the drill bit seat is adjusted by utilizing the three groups of adjusting mechanisms in a composite mode, each adjusting mechanism needs to be operated according to the position requirement, the control process is complex, the accuracy is poor, and the rotary guide drilling device further has a lifting optimization space.
The invention provides a steering control device and a rotary steering drilling tool. The guide control device is provided with an adjusting disc structure, the azimuth of the adjusting disc is driven to change through an azimuth adjusting mechanism, the azimuth angle of the guide executing piece is further changed, the inclination angle of the adjusting disc is driven to change through an inclination angle adjusting mechanism, the structural angle of the guide executing piece is further changed, the guide control device is independently controlled, the operation process is simple, and the control accuracy is high. The rotary guide drilling tool is provided with the guide control device, and has the same beneficial effects.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
FIG. 1 is a front view of a guidance control apparatus provided in accordance with one possible embodiment of the present invention; FIG. 2 is another perspective front view of a guidance control apparatus according to one possible embodiment of the present invention; FIG. 3 is an enlarged view of FIG. 2 at B; FIG. 4 is a cross-sectional view A-A of FIG. 2; FIG. 5 is a schematic view of the fourth spur-internal gear of FIG. 1; FIG. 6 is a schematic view of the structure of FIG. 1 at the adjustment disk; FIG. 7 is a schematic structural view of the movable plate of FIG. 1; FIG. 8 is a schematic structural view of the slipper of FIG. 1; FIG. 9 is a schematic view of another angular configuration at the adjustment dial of FIG. 1; FIG. 10 is a schematic view of the slider of FIG. 1; fig. 11 is a schematic structural view of the control lever of fig. 1.
Referring to fig. 1-11, one possible embodiment of the present invention provides a guidance control device 10 including an adjustment dial, an azimuth adjustment mechanism, a tilt adjustment mechanism, and a sliding member; the adjusting disc comprises a shaft sleeve 130 and a movable disc 131, and the movable disc 131 is sleeved outside the shaft sleeve 130; a connecting piece is arranged between the movable disc 131 and the shaft sleeve 130, a first end of the connecting piece is connected with the shaft sleeve 130, a second end of the connecting piece is hinged with a first position and a second position on the movable disc 131 respectively, and the first position and the second position are arranged along the same set radial line of the shaft sleeve 130; the direction adjusting mechanism is connected with the shaft sleeve 130 and drives the shaft sleeve 130 to rotate; the inclination angle adjusting mechanism follows up with the shaft sleeve 130 and is connected with the first disc surface of the movable disc 131, and the inclination angle adjusting mechanism drives the movable disc 131 to swing around a set radial line; the sliding connection member 140 is slidably connected to the movable plate 131, the sliding connection member 140 is disposed on the movable plate 131 along a circumferential direction of the shaft sleeve 130, and a second sliding slot 145 for connecting the control rod 220 is disposed on the sliding connection member 140, and the second sliding slot 145 extends along a radial direction of the shaft sleeve 130.
The movable disc 131 is sleeved outside the shaft sleeve 130, the movable disc 131 follows the shaft sleeve 130 through the connecting piece, and the movable disc 131 can swing along a set radial line due to the fact that the connecting piece is hinged to the movable disc 131. The movable plate 131 can be in any shape, keeps a distance with the periphery of the shaft sleeve 130, and can swing along a set radial line.
The azimuth adjusting mechanism and the inclination adjusting mechanism respectively control the change and the positioning of the azimuth angle and the structural angle of the guide executing piece.
The bearing adjusting mechanism drives the shaft sleeve 130 to rotate, the movable disc 131 also rotates along with the shaft sleeve 130 as the movable disc 131 is connected with the shaft sleeve 130 through the connecting piece, the change of the movable disc 131 relative to the space direction is realized in the rotating action process, and the positioning of the movable disc 131 in the space direction is realized by the static rotation action, so that the bearing adjusting mechanism realizes the control and adjustment of the azimuth angle of the movable disc 131.
The inclination angle adjusting mechanism drives the movable disk 131 to swing and can lock any swing position, the change of the inclination angle between the disk surface of the movable disk 131 and the axial direction of the shaft sleeve 130 is realized in the swing action process, the positioning of the inclination angle between the disk surface of the movable disk 131 and the axial direction of the shaft sleeve 130 is realized by the static swing action, and therefore the inclination angle adjusting mechanism realizes the control and adjustment of the structural angle of the movable disk 131.
The movable plate 131 controls the azimuth and the structural angle of the guide actuator through the lever 220. Considering that a guide actuator (such as a drill guide tool 240 described below) has a rotating motion while being controlled by a guide control device, and the axial position of the control rod 220 is limited to follow the guide actuator, the control rod 220 is slidably connected to the movable plate 131 through the sliding connection member 140, and the sliding connection member 140 slides along the circumferential direction of the shaft sleeve 130; and the second sliding groove 145 is provided to provide a movement space for radial displacement generated during the reciprocating movement of the control rod 220, so that the control rod 220 can still accurately receive the control action of the movable disc 131 during the circumferential movement of the shaft sleeve 130, and further adjust the azimuth angle and the structural angle of the guiding actuator.
When the azimuth angle and the structural angle of the movable disk 131 are unchanged, that is, the movable disk 131 remains relatively static, and the inclination angle of the movable disk 131 is determined, the control rod 220 rotates along with the guiding actuator, and in the rotating process, the control rod 220 is controlled by the determined structural angle of the movable disk 131 in the same direction, so that the guiding actuator is controlled by the determined structural angle in the determined direction in the rotating process, and the guiding actuator rotates along the determined azimuth angle and the structural angle trajectory, thereby realizing the movement with unchanged azimuth angle and structural angle.
When the azimuth angle of the movable disc 131 is unchanged, the structural angle changes, that is, the movable disc 131 remains relatively static, but the inclination angle of the movable disc 131 changes, the control lever 220 rotates along with the guide executing member, and during the rotation process, the control lever 220 is subjected to the structural angle control action of the change of the movable disc 131 in the same azimuth, so that the guide executing member is subjected to the structural angle control action of the change of the determined azimuth, and the guide executing member follows the determined azimuth angle, but the track of the structural angle changes, thereby realizing the movement of the unchanged azimuth angle and the change of the structural angle.
When the azimuth angle of the movable disc 131 changes and the structural angle is unchanged, that is, the movable disc 131 keeps rotating relatively, so that the change of the azimuth is realized, but the inclination angle of the movable disc 131 is determined, the control rod 220 rotates along with the guide executing part, the control rod 220 is controlled by the determined structural angle of the movable disc 131 with the changed azimuth during the rotation process, so that the guide executing part is controlled by the determined structural angle with the changed azimuth during the rotation process, the guide executing part follows the determined structural angle, and the circumferential change of the azimuth is generated on the basis of the determined structural angle, so that the movement with the changed azimuth angle and the unchanged structural angle is realized.
When the azimuth angle of the movable disc 131 changes and the structural angle changes, that is, the movable disc 131 keeps rotating relatively, so as to realize the change in azimuth, and the inclination angle of the movable disc 131 changes, the control rod 220 rotates along with the guiding executing member, and the control rod 220 is controlled by the changed structural angle of the movable disc with changed azimuth in the rotating process, so that the guiding executing member is controlled by the changed structural angle with changed azimuth in the rotating process, and the guiding executing member follows the changed structural angle and generates circumferential change in azimuth at the changed structural angle, so as to realize the motion with changed azimuth angle and structural angle.
Therefore, the azimuth angle and the structural angle of the guiding actuator are changed synchronously with the azimuth angle and the structural angle of the movable disk 131, and the adjustment of the azimuth angle and the structural angle of the guiding actuator can be realized by adjusting the azimuth angle and the structural angle of the movable disk 131. When the structure angle of the guide executing piece needs to be changed, the inclination angle adjusting mechanism drives the movable disc to swing. When the azimuth angle of the guide executing piece needs to be changed, the azimuth adjusting mechanism adjusts the adjusting disc to rotate relative to the stratum.
This embodiment direction controlling means sets up the adjustment disk structure, and the position change through position adjustment mechanism drive adjustment disk, and then changes the azimuth of direction executive, and the inclination through inclination adjustment mechanism drive adjustment disk changes, and then changes the structure angle of direction executive, independent control separately, and operation process is simple, and control accuracy is high.
Further, the shaft sleeve 130 and the movable disk 131 are coaxially arranged, a plurality of sliding connection pieces 140 are arranged, and the sliding connection pieces 140 are all connected to the outer edge of the movable disk 131 in a sliding manner; each sliding connection piece 140 is provided with a second sliding chute 145, and the second sliding chute 145 is arranged on one side, close to the second disc surface of the movable disc 131, of each sliding connection piece 140; the second disk surface and the first disk surface are located on the movable disk on opposite sides in the axial direction of the shaft sleeve, and the shape of the cross section of the second sliding groove 145 includes a circular arc shape for slidably connecting a control ball of the control lever 220.
The sliding connection pieces 140 are connected with the control rods 220, the azimuth angles and the structural angles of the guide execution pieces are controlled through the control rods 220, the control rods 220 are matched with each other, the control action of the movable disc is transmitted more accurately, and the control precision is improved.
As shown in fig. 9-10, the movable plate 131 coaxially sleeves the sleeve 130, and the movable plate 131 includes an upper plate 1311 and a lower plate 1312 and is a stepped disk structure with a large top and a small bottom. Wherein, the side of the upper disc 1311 away from the control lever 220 is used as a first disc surface, and the side of the upper disc 1311 close to the control lever 220 is used as a second disc surface. The sliding member 140 is hung on the outer edge of the upper plate 1311 of the movable plate 131, and has a half-open structure surrounding the outer edge of the upper plate 1311. The slide 140 includes an arcuate slot bottom 143, a first slot sidewall 141, a second slot sidewall 142, and a positioning arc 144. Wherein, the arc-shaped groove bottom 143 is provided with an inner arc surface matched with the outer edge of the upper disc 1311, and the first and second groove sidewalls 141 and 142 extend in the radial direction of the inner arc surface and are installed at opposite sides of the arc-shaped groove bottom 143. The free end of the first disc of the upper disc 1311, which corresponds to the first groove side wall 141, is provided with an annular groove 1313. The positioning arc plate 144 is an arc plate structure which is matched with the annular groove 1313 in a sliding mode, and the positioning arc plate 144 is connected to the free end of the first groove side wall 141. The first groove side wall 141 and the second groove side wall 142 of the sliding connector 140 abut against two end surfaces of the upper disc 1311, the arc groove bottom 143 abuts against the outer edge arc surface of the upper disc 1311, and the sliding connector 140 is in limit connection with the upper disc 1311 through the positioning arc plate 144.
The control lever 220 relatively slides in the radial direction of the sleeve 130 during the swing of the movable disk 131, and also needs to provide a space for the possible rotation of the control lever 220. The upper end of the control rod 220 is provided with a spherical control ball 224. A connecting block is arranged on one side of the sliding connection piece 140 close to the second disk surface, and a second sliding groove 145 extending along the radial direction of the shaft sleeve 130 is formed in the connecting block. The shape of the cross section of the second sliding groove 145 corresponds to a circular arc, and the control ball 224 slides into the second sliding groove 145 to slide relatively. The control ball 224 is connected to the second sliding groove 145, slides along the second sliding groove 145, and provides a space for the control rod 220 to rotate.
As shown in fig. 11, the control rod 220 includes a control ball 224, a first connection section 221, a second connection section 222 and a third connection section 223, which are connected in sequence, wherein the second connection section 222 is limited in the control hole, the first connection section 221 and the control ball 224 are connected to the upper end of the second connection section 222 for transmitting the control action of the movable disk 131, the third connection section 223 is connected to the lower end of the second connection section 222 and is provided with a valve core rod connection hole 225 for connecting the valve core wedge 232 through the valve core rod 231, and the third connection section 223 and the second connection section 222 are connected in a parallel and staggered manner, so as to provide a free rotation space for the control rod 220, and enable the valve core rod 231 to remain unchanged in the axial direction.
In a further possible embodiment, the connecting element includes a first pin, the first pin is disposed along a predetermined radial line, and the first pin penetrates through the first position, the shaft sleeve and the second position, and connects the shaft sleeve 130 and the movable plate 131. Or, the connecting member includes two second pins 132, each second pin 132 is disposed along a predetermined radial line, one of the second pins 132 penetrates the first position and the shaft sleeve 130, the other second pin 132 penetrates the second position and the shaft sleeve 130, and the two second pins 132 are respectively connected to the shaft sleeve 130 and the movable plate 131. Or, the connecting piece includes two bracing pieces, and two bracing pieces symmetry set up in the relative both sides of axle sleeve 130, and the first end of each bracing piece all with axle sleeve 130 fixed connection, the second end of each bracing piece all with the equal universal connection of activity dish 131 of first position department and second position department.
In one mode, the movable disc 131 at the first position and the movable disc at the second position are connected with the shaft sleeve 130 through a pin shaft, so that the movable discs can follow the shaft sleeve 130; the pin is disposed along a set radial line between the first position and the second position, so that the movable disk 131 rotates around the pin to swing around the set radial line. The pin shaft can be connected with the shaft sleeve 130 and the movable disc 131 by one first pin shaft, or can be connected with the second pin shaft 132 between two positions and the shaft sleeve 130 respectively as shown in fig. 1, and the swing of the movable disc 131 can be realized by the two connection modes.
In another mode, the shaft sleeve 130 is connected by symmetrical support rods, and the shaft sleeve 130 drives the movable disk 131 to follow through the support rods. The other end of the supporting rod is connected with the movable disc 131 through a universal ball head, and the movable disc 131 can freely swing left and right along the tangential direction of the movable disc 131 at the first position and the second position, so that the movable disc 131 can swing around a fixed axial line.
In a further possible embodiment, the orientation adjustment mechanism includes an orientation driving member 110 and an orientation transmission assembly, the orientation transmission assembly is connected between the bushing 130 and the orientation driving member, and the orientation driving member drives the bushing 130 to rotate through the orientation transmission assembly; the tilt angle adjusting mechanism comprises a tilt angle driving member 120 and a tilt angle transmission assembly, the tilt angle transmission assembly is connected between the movable disc 131 and the tilt angle driving member 120, and the tilt angle driving member 120 drives the movable disc 131 to swing through the tilt angle transmission assembly.
The azimuth adjusting mechanism and the inclination angle adjusting mechanism are provided with respective driving pieces and transmission assemblies, so that respective independent control is realized, respective control is facilitated, the arrangement mode is flexible, and the maintenance is facilitated.
In a further possible embodiment, the azimuth driving assembly comprises a third spur gear 113, the third spur gear 113 is coaxially connected with the shaft sleeve 130, and the azimuth driving member 110 is connected with the third spur gear 113 and drives the third spur gear 113 to rotate.
When the steering control device 10 is applied to a rotary steering drilling tool, an oil pipeline needs to be designed in consideration of the center of the shaft sleeve 130, and the driving part of the shaft sleeve 130 adopts gear transmission, that is, the oil pipeline can be designed in the central hole of the third spur gear 113. Of course, if not applied to a rotary steerable drilling tool, the bushing 130 may be considered as a solid shaft, and the solid shaft may be directly connected through an azimuth driving member and a coupling, or connected through a reduction gearbox to drive the solid shaft to rotate.
Referring to fig. 1 and 5, the third spur gear 113 may be simplified and designed to include a third gear sleeve 1132 and a third gear ring 1133, where the third gear sleeve 1132 is connected to the shaft sleeve 130 by a key connection or the like, and the third gear ring 1133 is fixed to an outer ring of the third gear sleeve 1132. Third ring gear 1133 is driven by azimuth driver 110, and third ring gear 1133 drives third gear sleeve 1132 to rotate, so as to cause rotation of shaft sleeve 110. The structure of the third straight gear is simplified, the processing is convenient, the material is saved, and the power transmission effect is ensured.
In a further possible embodiment, the azimuth driving member 110 comprises an azimuth driving motor, and the azimuth driving member further comprises a first spur gear 111, an output shaft of the azimuth driving motor is connected with the first spur gear 111, and the first spur gear 111 is in meshing connection with the third spur gear 113.
The azimuth driving motor and the first spur gear 111 are provided with at least one group, when the azimuth driving motor and the first spur gear 111 are provided with a plurality of groups, the plurality of groups of azimuth driving motors and the first spur gear 111 are arranged around the circumference of the third spur gear 113, the azimuth driving motor of each group is connected with the first spur gear 111 of the corresponding group, and each first spur gear 111 is respectively connected with the third spur gear 113 in a meshing way.
Referring to fig. 1 and 5, the azimuth driving motor drives the first spur gear 111 to rotate, the first spur gear is meshed with the third gear ring 1133 of the third spur gear 113 to drive the third gear sleeve 1132 to rotate, and the shaft sleeve 130 is caused to rotate, so that the rotation direction and the rotation speed of the shaft sleeve 130 are controlled, and the positioning and the adjustment of the azimuth angle of the movable disc 131 are further controlled. According to the requirement of driving power, one or more groups of azimuth driving motors and the first straight gear 111 can be arranged to be clamped and meshed with the third straight gear 113, so that the power requirement is met, and the stability of torque transmission is ensured. In this embodiment, two sets of azimuth driving motors and a first straight gear 111 are provided.
In a further possible embodiment, the tilt angle transmission assembly includes a tilt angle adjusting nut 125 and a tilt angle adjusting screw 126, and the tilt angle adjusting nut 125 and the tilt angle adjusting screw 126 are both disposed on a side of the third spur gear close to the first disk surface; the inclination angle adjusting screw 126 is arranged parallel to the axial direction of the shaft sleeve 130, the shaft sleeve 130 or the third spur gear 113 is provided with a cantilever 1131 extending to the inclination angle adjusting screw 126, the cantilever 1131 is provided with a threaded hole corresponding to the inclination angle adjusting screw 126, and the inclination angle adjusting screw 126 is in threaded connection with the threaded hole; the tilt angle adjusting nut 125 is threadedly connected to a first end of the tilt angle adjusting screw 126, a second end of the tilt angle adjusting screw 126 is slidably connected to a first disc surface, and the tilt angle adjusting screw 126 relatively slides on the first disc surface along the radial direction of the shaft sleeve 130; the tilt driving mechanism is connected to the tilt adjusting nut 125 and drives the tilt adjusting nut 125 to rotate.
Considering that the movable plate 131 needs to change the structural angle at the set azimuth angle, the tilt adjustment screw 126 of the output control end of the tilt adjustment mechanism is disposed on the bushing 130, or on the third spur gear 113 as shown in fig. 2.
The tilt angle adjusting nut 125 and the tilt angle adjusting screw 126 constitute a nut screw structure, and the tilt angle adjusting nut 125 and the tilt angle adjusting screw 126 are disposed at any position on either side of a set radial line, and the tilt angle adjusting screw 126 is made parallel to an axial line of the sleeve 130. When the tilt adjustment nut 125 rotates, it drives the tilt adjustment screw 126 to move up and down, and further drives the movable plate 131 to swing around the set radial line.
The tilt adjusting screw 126 controls the movable disc 131 to slide relative to the movable disc 131 in the radial direction of the shaft sleeve 130 during the swinging process, and the movable disc 131 is provided with a first sliding slot 1314 extending in the radial direction of the shaft sleeve 130 to realize the radial sliding of the tilt adjusting screw 126 and the movable disc 131. As shown in fig. 6 and 7, the first plate surface of the upper plate 1311 of the movable plate 131 is close to the side of the third spur gear 113, the second plate surface of the upper plate 1311 is far from the side of the third spur gear 113, and the second pin 132 is connected between the lower plate 1312 of the movable plate 131 and the boss 130. The first disk surface is provided with a first sliding groove 1314 communicated with the central hole, and the first sliding groove 1314 can be selected to be a step-shaped cross section with a small upper part and a large lower part, so that the inclination angle adjusting screw 126 is prevented from slipping off the first sliding groove 1314, a rotating space of the inclination angle adjusting screw 126 is provided, and relative sliding in the radial direction of the inclination angle adjusting screw 126 and the first sliding groove is realized.
The bottom of the pitch adjustment screw 126 is connected to the movable plate 131 within a first chute 1314 via a slipper 127. As shown in fig. 6 and 8, and with reference to fig. 7, the slipper 127 is formed as a step block having a small top and a large bottom that slidably mates with the first slide slot 1314. The upper portion of the shoe 127 corresponding to the upper portion of the first sliding groove 1314 is a cylinder, and a spherical groove 1271 is formed on the upper end surface of the cylinder. The lower portion of the sliding shoe 127 corresponding to the lower portion of the first sliding slot 1314 is a flat cylinder, a connecting hole 1272 communicated with the spherical groove 1271 is formed on the lower end surface of the flat cylinder, and the connecting hole 1272 is a stepped hole with a small top and a large bottom. The bottom of the tilt angle adjusting screw 126 is processed into a ball head shape, the ball head shape of the tilt angle adjusting screw 126 is installed in the spherical groove 1271 on the upper portion of the slipper 127, and a limiting member such as a screw connected with the bottom of the ball head shape is installed in a connecting hole 1272 on the lower portion of the slipper 127, so that the connection between the tilt angle adjusting screw 126 and the slipper 127 is realized. When the sliding shoe 127 is slidably mounted in the first sliding slot 1314, the sliding shoe 127 can slide along the first sliding slot 1314, which facilitates the sliding of the tilt adjusting screw 126 along the radial direction of the shaft sleeve 130, and also facilitates the free rotation of the tilt adjusting screw 126 in the first sliding slot 1314 due to the stepped cylindrical shape, which facilitates the screw thread transmission of the tilt adjusting screw 126 in the first sliding slot 1314.
In a further possible embodiment, the pitch drive member 120 comprises a pitch drive motor, and the pitch drive assembly further comprises a second spur gear 122 and a fourth spur internal gear 124; the fourth internal straight gear 124 is coaxially sleeved outside the third straight gear 113, the fourth internal straight gear 124 and the third straight gear 113 are arranged at intervals, the inclination angle adjusting nut 125 is positioned between the fourth internal straight gear 124 and the third straight gear 113, and an external gear ring matched with the internal teeth of the fourth internal straight gear 124 is arranged on the periphery of the inclination angle adjusting nut 125; an output shaft of the inclination angle driving motor is connected with a second spur gear 122, the second spur gear 122 is in meshing connection with internal teeth at a first end of a fourth spur internal gear 124, and internal teeth at a second end of the fourth spur internal gear 124 are in meshing connection with an inclination angle adjusting nut 125.
The inclination angle driving motor and the second spur gear 122 are provided with at least one group, when the inclination angle driving motor and the second spur gear 122 are provided with a plurality of groups, the inclination angle driving motor and the second spur gear 122 are arranged around the circumferential direction of the inner teeth at the first end of the fourth spur gear 124, the inclination angle driving motor of each group is connected with the second spur gear 122 of the corresponding group, and each second spur gear 122 is respectively connected with the inner teeth at the first end of the fourth spur gear 124 in a meshing manner.
The outer side of the tilt angle adjusting nut 125 is provided with an external gear ring, and the tilt angle adjusting nut 125 is rotated through gear transmission, so that the rotation direction and the rotation speed of the tilt angle adjusting nut 125 can be conveniently controlled, and the positioning and the adjustment of the structural angle when the movable disc 131 swings can be adjusted.
Referring to fig. 2 and 5, the fourth straight-tooth internal gear 124 may be simplified and designed into a fourth gear sleeve 1243, a first gear ring 1241 and a second gear ring 1242, two ends in the fourth gear sleeve 1243 respectively fix the first gear ring 1241 and the second gear ring 1242, the second straight gear 122 is in meshing transmission with the first gear ring 1241 to drive the fourth gear sleeve 1243 and the second gear ring 1242 to rotate, the second gear ring 1242 is in meshing transmission with the tilt angle adjusting nut 125 to drive the tilt angle adjusting nut 125 to rotate, and then displacement change of the tilt angle adjusting screw 126 may be caused, so as to realize swing of the movable plate 131.
According to the requirement of driving power, one or more groups of inclination angle driving motors and the second straight gear 122 can be arranged to drive the fourth straight gear 124, so that the power requirement is met, and the stability of torque transmission is improved. The present embodiment provides a set of pitch drive motors and a second spur gear 122 connected to a fourth spur internal gear 124.
Further, the device also comprises a first shell 100, wherein the first shell 100 is hollow with two open ends; a driving frame 150 is fixedly installed at a first end in the first housing 100, the azimuth driving member 110 and the inclination driving member 120 are installed on the driving frame 150, the shaft sleeve 130 and the movable disk 131 are arranged at a second end in the first housing 100, the fourth spur gear 124 is installed at the middle part in the first housing 100 through a bearing, and the third spur gear 113 is connected between the driving frame 150 and the shaft sleeve 130.
As shown in fig. 1 and 2, the first housing 100 and the driving frame 150 are provided to position the azimuth driving unit 110, the inclination driving unit 120, the third spur gear 113 and the fourth spur gear 124, and the adjustment dial is separately installed according to the guide actuator, thereby improving the stability of the entire apparatus.
Example two
FIG. 12 is a front view of a rotary steerable drilling tool according to another possible embodiment of the present invention.
Referring to fig. 12, another possible embodiment of the present invention provides a rotary steerable drilling tool 20 including a second housing 200, a control rod 220, a valve core wedge 232, a drill bit steering tool 240, and the steering control device 10, wherein the second housing 200 is open at both ends and hollow, and the second housing 200 supports the second end of the first housing 100 connected to the steering control device 10.
The second housing 200 is provided with a support ring 210 near the first housing 100, the support ring 210 supports and connects the shaft sleeve 130 of the guide control device 10 through a bearing, the support ring 210 is provided with a control hole, a control rod 220 penetrates through the control hole, a first end of the control rod 220 is connected to the second sliding groove 145 of the guide control device 10, and a second end of the control rod 220 is connected to the valve core wedge 232.
The control rods 220, the control holes and the valve core wedges 232 are provided with a plurality of groups, the number of the control rods 220 is equal to that of the sliding connection pieces 140 of the guide control device 10, the control holes are uniformly arranged on the support ring 210 along the circumferential direction of the shaft sleeve 130, each control rod 220 penetrates through the control holes of the corresponding group, the first end of each control rod 220 is connected into the second sliding groove 145 of the sliding connection piece 140 of the corresponding group, and the second end of each control rod 220 is connected with the valve core wedges 232 of the corresponding group.
The drill bit guiding tool 240 is located at one end, far away from the first casing 100, of the second casing 200, an adjusting ball head 241 is arranged at a first end of the drill bit guiding tool 240, the adjusting ball head 241 corresponds to a space surrounded by the valve core wedges 232, in the reciprocating process of the valve core wedges 232, the adjusting ball head 241 is abutted to different valve core wedges 232, the second casing 200 is provided with a bearing piece supporting the middle of the drill bit guiding tool 240, a drill bit connecting seat 242 is arranged at a second end of the drill bit guiding tool 240, and the drill bit connecting seat 242 is located outside the second casing 200.
The second housing 200 is supported at the second end of the first housing 100, and a support ring 210 is provided to support the shaft sleeve 110. The support ring 210 is further provided with a control hole penetrating through the control rod 220, and the lower end of the control rod 220 is connected with a valve core wedge 232 through a valve core rod 231. A drill guide tool 240 is provided as a guide actuator at the lower end of the second housing 200. The upper part of the drill bit guiding tool 240 is provided with an adjusting ball head 241 positioned between the valve core wedges 232, and the adjusting ball head 241 can be optionally provided with wedge blocks corresponding to the valve core wedges 232 respectively, so that the valve core wedges 232 are convenient to abut against the adjusting ball head 241 respectively; a fulcrum is arranged in the middle of the drill bit guiding tool 240; the lower portion of the drill guide tool 240 is provided with a drill connecting seat 242 protruding out of the second housing 200 for connecting a drill. The control levers 220 are controlled by the movable disc 131 to reciprocate up and down regularly, so that the valve core wedges 232 are in regular contact with or away from the set side surface of the adjusting ball head 241, the adjusting ball head 241 performs offset motion in the second housing 200 in the process, and the drill bit connecting seat 242 on the other side corresponding to the fulcrum swings correspondingly, so that the change adjustment of the azimuth angle and the structural angle of the drill bit guiding tool 240 is realized by controlling the change adjustment of the azimuth angle and the structural angle of the movable disc 131.
It is worth mentioning that since the first housing 100 rotates with the second housing 200, the adjustment disc also has a corresponding rotational movement with the formation. When the structural angle of the drill guiding tool 240 needs to be changed, the tilt angle adjusting motor is driven to rotate in the forward direction to increase the tilt angle of the movable disc 131, that is, the structural angle of the drill guiding tool 240 can be increased, and the tilt angle adjusting motor is driven to rotate in the reverse direction to decrease the tilt angle of the movable disc 131, that is, the structural angle of the drill guiding tool 240 can be decreased. When the azimuth angle of the bit steering tool 240 needs to be kept constant, the rotation speed of the azimuth adjustment motor should be adjusted to make the movable disc 131 rotate reversely relative to the first housing 100 or the second housing 200 at the same rotation speed, so that the movable disc 131 is kept stationary relative to the formation, and the azimuth angle of the bit steering tool structure angle 240 can be kept constant. When the azimuth angle of the drill guiding tool 240 needs to be adjusted, the rotation speed of the azimuth adjusting motor is adjusted, so that the movable disc 131 rotates at a relatively low rotation speed relative to the formation, and is switched to the azimuth angle invariant mode after rotating to the target position, and the adjustment of the azimuth angle of the drill guiding tool 240 can be completed.
The rotary steering drilling tool 20 comprises a steering control device 10, wherein the steering control device 10 is provided with an adjusting disc structure, the azimuth of the adjusting disc is driven by an azimuth adjusting mechanism to change, so that the azimuth of a steering actuating member is changed, the inclination of the adjusting disc is driven by an inclination adjusting mechanism to change, so that the structural angle of the steering actuating member is changed, the steering actuating member and the inclination adjusting mechanism are independently controlled, the operation process is simple, and the control accuracy is high. The rotary steerable drilling tool 20 is equipped with the steering control device 10 described above with the same beneficial results.
In the description of the present invention, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the embodiments of the present invention in its spirit.
Claims (9)
1. A guide control device is characterized by comprising an adjusting disc, an azimuth adjusting mechanism, an inclination adjusting mechanism and a sliding connection piece;
the adjusting disc comprises a shaft sleeve and a movable disc, and the movable disc is sleeved on the outer side of the shaft sleeve;
a connecting piece is arranged between the movable disc and the shaft sleeve, the connecting piece comprises a first pin shaft, the first pin shaft is arranged along a set radial line of the shaft sleeve, and the first pin shaft penetrates through a first position of the movable disc and a second position of the shaft sleeve and the movable disc to connect the shaft sleeve and the movable disc;
or, the connecting piece comprises two second pin shafts, each second pin shaft is arranged along the set radial line, one of the second pin shafts penetrates through the first position and the shaft sleeve, the other second pin shaft penetrates through the second position and the shaft sleeve, and the two second pin shafts are respectively connected with the shaft sleeve and the movable disc;
or the connecting piece comprises two supporting rods, the two supporting rods are symmetrically arranged on two opposite sides of the shaft sleeve, the first end of each supporting rod is fixedly connected with the shaft sleeve, and the second end of each supporting rod is in universal connection with the movable disc at the first position and the second position;
the direction adjusting mechanism is connected with the shaft sleeve and drives the shaft sleeve to rotate;
the inclination angle adjusting mechanism follows up with the shaft sleeve and is connected to a first disc surface of the movable disc, and the inclination angle adjusting mechanism drives the movable disc to swing around the set radial line;
the sliding connection piece is connected with the movable disc in a sliding mode, the sliding connection piece is located on the movable disc along the circumferential direction of the shaft sleeve in a relative sliding mode, a second sliding groove used for being connected with a control rod is formed in the sliding connection piece, and the second sliding groove extends in the radial direction of the shaft sleeve.
2. The guidance control device of claim 1, wherein the shaft sleeve and the movable disk are coaxially arranged, and the sliding connectors are provided in plurality and are all slidably connected to the outer edge of the movable disk; each sliding connection piece is provided with the second sliding chute, and the second sliding chute is arranged on one side, close to the second disc surface of the movable disc, of each sliding connection piece; the second disc surface and the first disc surface are positioned on the movable disc along the two opposite axial sides of the shaft sleeve, and the cross section of the second sliding groove is in a circular arc shape and is in sliding connection with a control ball head of the control rod.
3. The steering control device of claim 1 or 2, wherein the orientation adjustment mechanism comprises an orientation drive member and an orientation transmission assembly, the orientation transmission assembly being connected between the bushing and the orientation drive member, the orientation drive member driving the bushing to rotate via the orientation transmission assembly;
the inclination angle adjusting mechanism comprises an inclination angle driving piece and an inclination angle transmission assembly, the inclination angle transmission assembly is connected between the movable disc and the inclination angle driving piece, and the inclination angle driving piece drives the movable disc to swing through the inclination angle transmission assembly.
4. The steering control device as claimed in claim 3, wherein the azimuth driving assembly comprises a third spur gear, the third spur gear is coaxially connected with the bushing, and the azimuth driving member is connected with the third spur gear and drives the third spur gear to rotate.
5. The steering control device of claim 4, wherein the azimuth driving member comprises an azimuth driving motor, the azimuth driving member further comprises a first spur gear, an output shaft of the azimuth driving motor is connected with the first spur gear, and the first spur gear is in meshing connection with the third spur gear;
the azimuth driving motor and the first straight gear are at least provided with one group, when the azimuth driving motor and the first straight gear are provided with a plurality of groups, the azimuth driving motor and the first straight gear are annularly arranged along the circumferential direction of the third straight gear, the azimuth driving motor of each group is connected with the first straight gear of the corresponding group, and the first straight gear is respectively in meshed connection with the third straight gear.
6. The guidance control device of claim 4, wherein the tilt angle transmission assembly comprises a tilt angle adjustment nut and a tilt angle adjustment screw, both disposed on a side of the third spur gear adjacent to the first disk surface;
the inclination angle adjusting screw is arranged in parallel to the axial direction of the shaft sleeve, a cantilever beam extending to the inclination angle adjusting screw is arranged on the shaft sleeve or the third straight gear, a threaded hole corresponding to the inclination angle adjusting screw is formed in the cantilever beam, and the inclination angle adjusting screw is in threaded connection with the threaded hole;
the inclination angle adjusting nut is in threaded connection with a first end of the inclination angle adjusting screw rod, a second end of the inclination angle adjusting screw rod is in sliding connection with the first disc surface, and the inclination angle adjusting screw rod relatively slides on the first disc surface along the radial direction of the shaft sleeve;
the inclination driving mechanism is connected with the inclination adjusting nut and drives the inclination adjusting nut to rotate.
7. The steering control device of claim 6, wherein the pitch drive member comprises a pitch drive motor, and the pitch drive assembly further comprises a second spur gear and a fourth spur gear;
the fourth straight-tooth internal gear is coaxially sleeved on the outer side of the third straight-tooth gear, the fourth straight-tooth internal gear and the third straight-tooth gear are arranged at intervals, the inclination angle adjusting nut is positioned between the fourth straight-tooth internal gear and the third straight-tooth gear, and an outer gear ring matched with inner teeth of the fourth straight-tooth internal gear is arranged on the periphery of the inclination angle adjusting nut;
an output shaft of the inclination angle driving motor is connected with the second straight gear, the second straight gear is meshed with the inner teeth at the first end of the fourth straight gear, and the inner teeth at the second end of the fourth straight gear are meshed with the inclination angle adjusting nut;
the inclination driving motor with the second straight-teeth gear is provided with at least a set of, works as and is provided with the multiunit inclination driving motor with the second straight-teeth gear, multiunit inclination driving motor with the second straight-teeth gear ring the circumference of the internal tooth of the first end of fourth straight-teeth internal gear sets up, each group inclination driving motor connects and corresponds the group the second straight-teeth gear, each the second straight-teeth gear respectively with the internal tooth meshing of the first end of fourth straight-teeth internal gear is connected.
8. The guidance control device of claim 7, further comprising a first housing, wherein the first housing is open at both ends and is hollow;
first end fixed mounting in the first casing has the drive frame, the position driving piece with the inclination driving piece install in on the drive frame, the axle sleeve with the activity dish set up in second end in the first casing, fourth straight-tooth internal gear pass through the bearing install in middle part in the first casing, the third straight-tooth gear connect in the drive frame with between the axle sleeve.
9. A rotary steerable drilling tool comprising a second housing, a control rod, a valve core wedge, a drill bit steering tool and a steering control device according to any of claims 1 to 8, the second housing being open at both ends and hollow, the second housing supporting a second end of a first housing connected to the steering control device;
a support ring is arranged on the second shell close to the first shell, the support ring supports and is connected with a shaft sleeve of the guide control device through a bearing, a control hole is formed in the support ring, a control rod penetrates through the control hole, the first end of the control rod is connected into a second sliding groove of the guide control device, and the second end of the control rod is connected with the valve core wedge block;
the control rods, the control holes and the valve core wedge block are provided with a plurality of groups, the number of the control rods is equal to that of the sliding connection pieces of the guide control device, the control holes are uniformly arranged on the support ring along the circumferential direction of the shaft sleeve, the control rods penetrate through the control holes of the corresponding group, the first end of each control rod is connected into the second sliding groove of the sliding connection piece of the corresponding group, and the second end of each control rod is connected with the valve core wedge block of the corresponding group;
the drill bit guiding tool is positioned at one end, far away from the first shell, of the second shell, an adjusting ball head is arranged at the first end of the drill bit guiding tool, the adjusting ball head corresponds to the space surrounded by the valve core wedge blocks, in the reciprocating motion process of the valve core wedge blocks, the adjusting ball head is abutted to the different valve core wedge blocks, a supporting piece supporting the middle of the drill bit guiding tool is arranged on the second shell, a drill bit connecting seat is arranged at the second end of the drill bit guiding tool, and the drill bit connecting seat is positioned outside the second shell.
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| CN202111033493.5A CN113585971B (en) | 2021-09-03 | 2021-09-03 | Guiding control device and rotary guiding drilling tool |
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| CN202111033493.5A CN113585971B (en) | 2021-09-03 | 2021-09-03 | Guiding control device and rotary guiding drilling tool |
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| CN107060644A (en) * | 2016-12-28 | 2017-08-18 | 中国石油大学(华东) | A kind of wheel rotating state directional type rotary steering system and guiding control method |
| CN110118058A (en) * | 2019-05-21 | 2019-08-13 | 北京工业大学 | Petal type rotary steering drilling tool |
| CN110043188A (en) * | 2019-06-04 | 2019-07-23 | 中国石油大学(华东) | The offset guide mechanism and control method of static guiding type rotary steering drilling tool |
| CN113073939A (en) * | 2021-03-31 | 2021-07-06 | 中国石油大学(北京) | Inward-pushing directional rotary steering drilling tool |
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