CN118049137B - Deviation preventing device for drilling - Google Patents
Deviation preventing device for drilling Download PDFInfo
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- CN118049137B CN118049137B CN202410384957.4A CN202410384957A CN118049137B CN 118049137 B CN118049137 B CN 118049137B CN 202410384957 A CN202410384957 A CN 202410384957A CN 118049137 B CN118049137 B CN 118049137B
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- stabilizer
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- drilling
- stabilizer body
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- 238000005553 drilling Methods 0.000 title claims abstract description 53
- 239000003381 stabilizer Substances 0.000 claims abstract description 110
- 238000007789 sealing Methods 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 claims abstract description 37
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 3
- 239000000956 alloy Substances 0.000 claims description 29
- 229910045601 alloy Inorganic materials 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 5
- 230000008859 change Effects 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- 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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- 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)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of drilling stabilizing equipment, in particular to a drilling deviation preventing device for drilling, which comprises a stabilizer body, rib plates, a reducing assembly and a hydraulic transmission assembly, wherein the hydraulic transmission assembly is arranged in the stabilizer body and is used for adjusting the hydraulic intensity in a hydraulic cavity and a pressure regulating groove, on one hand, the rib sheet is pushed to conduct telescopic movement in the telescopic groove, and then the size of the stabilizer is accurately adjusted, on the other hand, in the hydraulic change process, the sealing gasket is adjusted between an expansion state and a contraction state through hydraulic transmission, so that when the rib sheet moves, the resistance of the rib sheet to movement is reduced, after the adjustment is completed, gaps between the rib sheet and the telescopic groove are plugged, the sealing performance of the stabilizer is enhanced, and the failure probability of the stabilizer is reduced.
Description
Technical Field
The invention belongs to the technical field of drilling stabilizing equipment, and particularly relates to a drilling deviation preventing device for drilling.
Background
The stabilizer is also called a centralizer, is an important tool for preventing drilling tools from deviating and well deviation change in petroleum, natural gas and geological exploration drilling engineering, has wide application, and is characterized in that a plurality of drilling tool stabilizers are assembled on a drill string in both an inclination increasing section and an inclination decreasing section so as to improve the quality and the drilling speed of a well body and reduce the drilling cost.
According to the different structures and functions of the stabilizer, the stabilizer is generally divided into a fixed diameter stabilizer and a variable diameter stabilizer, in practical application, the variable diameter stabilizer can realize the change of the diameter of the stabilizer through the change of conditions when in use, the centering precision of a drilling tool is improved in a loose well section and a well wall expansion well section, when clamping rods and the like occur, the flexibility of the stabilizer, a drill rod and the movement of the drilling tool can be enhanced through the change of the diameter of the stabilizer, so that the application prospect of the variable diameter stabilizer is better, however, in the practical application process, the variable diameter stabilizer is found out, on the one hand, as the variable diameter stabilizer is mostly contacted with the inner wall of a well through rib plates distributed on the outer side when in use, the variable diameter stabilizer is enlarged, the length of the rib plates in the stabilizer is gradually reduced, so that the connection stability of the stabilizer and the rib plates is reduced, and on the other hand, in order to enhance the friction resistance of the rib plates, a hard alloy block is generally inlaid on one side of the rib plates far away from the stabilizer body, and the probability of the hard alloy block is further increased when the rib plates are deformed under stress, so that the service life of the stabilizer is shorter.
In order to enhance the use strength of the stabilizer in the related art, the connection stability between the rib plate and the stabilizer is enhanced by a locking structure, for example, the application number is as follows: 202211387882.2 discloses a variable diameter drilling tool stabilizer, in the scheme, through connecting a centralizing strip and a cone through a dovetail groove guide rail, the self-locking of the centralizing strip is realized by utilizing the installation of the angle between the centralizing strip and the cone, so that the stability of the stabilizer is enhanced, but in the practical application process, the fact that a gap exists between the centralizing strip and the stabilizer body due to the fact that the centralizing strip is slidably installed on the stabilizer body is found, when the gap is overlarge, external drilling fluid easily permeates into the stabilizer under the action of pressure, and when the gap is too small, the telescopic movement of the centralizing strip is influenced is provided, and in view of the fact, the invention provides a drilling deviation preventing device for drilling, which is used for solving the technical problems.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art and solve the technical problems, the invention provides a drilling deviation preventing device for drilling.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a drilling deviation preventing device for drilling, which comprises a stabilizer body and rib plates, wherein the upper end and the lower end of the stabilizer body are respectively connected with a drill rod and a drill bit in a threaded manner, and the rib plates are arranged on the circumferential surface of the stabilizer body;
The diameter-changing assembly is mounted on the stabilizer body and is used for adjusting the diameter of the stabilizer;
The reducing assembly comprises telescopic grooves, the stabilizer body is provided with uniformly distributed telescopic grooves, and the rib plates are slidably arranged in the telescopic grooves;
The stabilizer comprises a stabilizer body, a pressure regulating groove, a lifting ring and a lifting rod, wherein the pressure regulating groove is formed in the stabilizer body and is in conductive connection with the telescopic groove;
the lifting ring is positioned at one end in the telescopic groove, the lifting ring is fixedly provided with an assembling slide block, the assembling slide block is designed to be far away from the inclined plane at one side of the lifting ring, the assembling slide blocks are in one-to-one correspondence with the rib plates, and the assembling slide blocks are in sliding connection with the rib plates;
the sealing gasket is arranged in the telescopic groove, a sealing gasket is fixedly arranged in the sealing groove, the sealing gasket is hollow, and the sealing gasket is made of wear-resistant rubber materials;
The hydraulic cavity is arranged in the stabilizer body, is filled with hydraulic oil and is in conductive connection with the inner cavity of the sealing gasket;
the hydraulic transmission assembly is arranged in the stabilizer body and is used for adjusting the hydraulic intensity in the hydraulic cavity and the pressure regulating groove.
Preferably, the sealing grooves are designed in a plurality, and the sealing grooves are uniformly arranged along the telescopic grooves.
Preferably, the diameter-changing assemblies are divided into two groups, the two groups of diameter-changing assemblies are distributed on the upper side and the lower side of the stabilizer body, and the two groups of diameter-changing assemblies move alternately.
Preferably, the hydraulic transmission assembly comprises a distribution groove, the distribution groove is arranged on the stabilizer body, and the distribution groove is connected with the pressure regulating groove and the hydraulic cavity in a conducting way;
The reset groove is formed in the stabilizer body, and one end, away from the distribution groove, of the pressure regulating groove is connected with the reset groove in a conducting manner;
Both ends of the pressure regulating groove are provided with one-way discharge pipes;
The hydraulic cavity and the distribution groove are internally provided with a transmission part together, two ends of the transmission part are respectively connected with the hydraulic cavity and the distribution groove in a sliding sealing manner, the distribution groove is internally fixedly provided with a sealing spring, the sealing spring is fixedly connected with the transmission part, and the transmission part blocks the distribution groove in an initial state.
Preferably, the connection part of the distribution groove and the hydraulic cavity is far away from the opening of the distribution groove and is positioned on the motion path of the transmission part.
Preferably, the stabilizer body is provided with a through groove, the distribution groove and the reset groove are connected with the through groove in a conducting manner, the through groove is designed in a step shape, the distribution groove and the opening of the reset groove are provided with pressure valves, the opening pressures of the distribution groove and the opening of the reset groove are different, and the opening pressure of the pressure valve corresponding to the reset groove is larger than that of the pressure valve corresponding to the distribution groove.
Preferably, the rib plate stabilizer further comprises a reinforcing component for reinforcing the connection strength of the rib plate and the stabilizer body;
The reinforcing component comprises a transmission cavity, the transmission cavity is arranged in the stabilizer body, and the transmission cavity is connected with the hydraulic cavity in a conducting way;
The assembly ring is arranged in the transmission cavity in a sliding and sealing manner, and is symmetrically designed and connected with the rib plates in a clamping manner.
Preferably, the reinforcement assembly further comprises an extension edge fixedly mounted on the stabilizer body, and the extension edge is sleeved outside the rib plate.
Preferably, the reinforcing component further comprises an alloy block, one end, far away from the assembly sliding block, of the rib sheet is inlaid with the alloy block, the alloy block is made of wear-resistant hard alloy materials, the rib sheet is provided with a reinforcing groove, the alloy block extends into the reinforcing groove, and the sealing groove is located on the extending path of the reinforcing groove.
The beneficial effects of the invention are as follows:
1. According to the drilling deviation preventing device for drilling, the diameter changing assembly is matched with the hydraulic transmission assembly, the rib sheet is pushed to stretch and retract in the telescopic groove by utilizing the change of hydraulic pressure, so that the size of the stabilizer is accurately adjusted, and the sealing gasket is adjusted between an expansion state and a contraction state by hydraulic transmission in the hydraulic change process, so that the resistance of the rib sheet to movement is reduced when the rib sheet moves, gaps between the rib sheet and the telescopic groove are blocked after the adjustment is completed, the sealing performance of the stabilizer is enhanced, and the probability of failure of the stabilizer is reduced.
2. According to the drilling deviation preventing device for drilling, the abrasion resistance of the rib plates is effectively enhanced through the arrangement of the alloy blocks, the probability of damage to the rib plates is reduced in long-time drilling operation, the alloy blocks extend into the reinforcing grooves and correspond to the sealing grooves, the bonding area of the rib plates and the alloy blocks can be enhanced, the probability of falling off of the alloy blocks is reduced, gaps of the rib plates and the telescopic grooves can be filled by the sealing gasket, the connection strength of the alloy blocks and the stabilizer body is further enhanced, and the probability of falling off of the alloy blocks is further reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an assembled perspective view of a rib plate and an assembled slider;
FIG. 3 is a perspective view of the connection of the lifting ring to the assembly slide;
FIG. 4 is a perspective view of a snap connection of the assembly ring to the rib plate;
FIG. 5 is a cross-sectional view of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a partial enlarged view at B in FIG. 6;
In the figure: 1. a stabilizer body; 11. a telescopic slot; 12. a pressure regulating groove; 13. a lifting ring; 2. rib plates; 21. assembling a sliding block; 22. a sealing gasket; 23. sealing grooves; 24. a hydraulic chamber; 25. a distribution tank; 26. a reset groove; 27. a one-way discharge pipe; 28. a transmission member; 29. a seal spring; 3. a through groove; 31. a pressure valve; 4. a transmission cavity; 41. assembling a ring; 42. an extension edge; 43. an alloy block; 44. reinforcing grooves.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 7, a drilling deviation preventing device for drilling comprises a stabilizer body 1 and rib plates 2, wherein the upper end and the lower end of the stabilizer body 1 are respectively in threaded connection with a drill rod and a drill bit, and the rib plates 2 are arranged on the circumferential surface of the stabilizer body 1;
the stabilizer comprises a stabilizer body 1, a diameter-changing assembly and a control assembly, wherein the diameter-changing assembly is arranged on the stabilizer body 1 and is used for adjusting the diameter of the stabilizer;
the reducing assembly comprises a telescopic groove 11, the stabilizer body 1 is provided with uniformly distributed telescopic grooves 11, and the rib plates 2 are slidably arranged in the telescopic grooves 11;
The stabilizer comprises a pressure regulating groove 12, wherein the pressure regulating groove 12 is formed in the stabilizer body 1, the pressure regulating groove 12 is in conductive connection with a telescopic groove 11, a lifting ring 13 is slidably installed in the pressure regulating groove 12, and the lifting ring 13 extends into the telescopic groove 11;
The lifting ring 13 is fixedly provided with an assembling slide block 21 at one end positioned in the telescopic groove 11, the assembling slide block 21 is designed to be far away from the inclined plane at one side of the lifting ring 13, the assembling slide blocks 21 are in one-to-one correspondence with the rib plates 2, and the assembling slide blocks 21 are in sliding connection with the rib plates 2;
the sealing gasket 22 is provided with a sealing groove 23 in annular design in the telescopic groove 11, the sealing gasket 22 is fixedly arranged in the sealing groove 23, the sealing gasket 22 is in hollow design, and the sealing gasket 22 is made of wear-resistant rubber materials;
The hydraulic cavity 24 is formed in the stabilizer body 1, hydraulic oil is filled in the hydraulic cavity 24, and the hydraulic cavity 24 is in conductive connection with the inner cavity of the sealing gasket 22;
The hydraulic transmission assembly is arranged in the stabilizer body 1 and is used for adjusting the hydraulic intensity in the hydraulic cavity 24 and the pressure regulating groove 12;
The sealing grooves 23 are designed in plural, and the sealing grooves 23 are uniformly arranged along the telescopic groove 11.
When the stabilizer is adopted to guide the drill bit in azimuth and reduce the drilling well deviation degree, in order to enable the stabilizer to flexibly adapt to drill bits with different diameters, the rib plates 2 are adjustably connected with the stabilizer body 1 through the reducing assembly, so that the whole diameter of the stabilizer can be adjusted under different conditions, and the use flexibility of the stabilizer is further enhanced;
Specifically, rib sheet 2 is slidably installed in telescopic slot 11 opened on stabilizer body 1, while rib sheet 2 is slidably connected with assembly slide 21, in the invention, rib sheet 2 and assembly slide 21 are close to each other and form fit to realize sliding connection, and because assembly slide 21 is fixedly installed on lifting ring 13, make a plurality of assembly slide 21 cooperate with lifting ring 13 to form a whole, when adjusting the diameter of the stabilizer, adjust the hydraulic pressure in pressure regulating tank 12 and hydraulic chamber 24 through the hydraulic transmission assembly, at this moment hydraulic pressure intensity in hydraulic chamber 24 is reduced, because hydraulic chamber 24 and seal 22 inner cavity are connected through the pipeline conduction, therefore when the pressure in hydraulic chamber 24 is reduced, hydraulic oil in the inner cavity of seal 22 then flows back into hydraulic chamber 24 under the effect of pressure, and then make seal 22 shrink into seal groove 23, because seal groove 23 plural design, and arrange evenly along telescopic slot 11, after seal 22 shrink rib sheet 2 and telescopic slot 11, make rib sheet 2 slide in telescopic slot 11 slide the coefficient reduce, and adjust the hydraulic pressure in pressure regulating tank 12 and hydraulic pressure in hydraulic chamber 24 and pressure chamber 12 in the same way as adjusting the same way as clamp plate 12 in the inner cavity 12, make the diameter of the guide plate 2 and then change in the guide the diameter of the assembly, and further realize the change of the diameter of the guide plate 2, and further realize the stable movement of the guide assembly, when the pressure regulating assembly, and the pressure in the inner cavity is connected with the pressure regulating tank 2, and the pressure regulator is changed, and the pressure in order to realize the effect of adjusting the pressure regulating assembly, and the pressure regulator is changed, and the pressure in the pressure regulating tank, and the pressure can be moved in the pressure, and the pressure regulator, and the pressure is changed, and the pressure is moved, and accordingly stable, after the pressure is reduced, the pressure in the hydraulic cavity 24 is gradually recovered, so that hydraulic oil is pushed to flow back into the inner cavity of the sealing gasket 22, the sealing gasket 22 is expanded by the returned hydraulic oil, a gap between the expansion groove 11 and the rib sheet 2 is further blocked, and the sealing performance of the stabilizer is enhanced;
According to the invention, the variable-diameter assembly is matched with the hydraulic transmission assembly, and the change of hydraulic pressure is utilized to push the rib plate 2 to perform telescopic movement in the telescopic groove 11 so as to accurately adjust the size of the stabilizer, and the sealing gasket 22 is adjusted between an expansion state and a contraction state through hydraulic transmission in the hydraulic change process, so that the resistance of the rib plate 2 to movement is reduced when the rib plate 2 moves, and after the adjustment is finished, the gap between the rib plate 2 and the telescopic groove 11 is blocked, the sealing performance of the stabilizer is enhanced, and the probability of failure of the stabilizer is reduced.
Example two
As shown in fig. 1 to 7, the present embodiment is further improved based on the first embodiment, so as to enhance the use effect of the stabilizer, wherein the diameter-variable components are divided into two groups, the two groups of diameter-variable components are distributed on the upper side and the lower side of the stabilizer body 1, and the two groups of diameter-variable components move alternately;
The hydraulic transmission assembly comprises a distribution groove 25, the distribution groove 25 is arranged on the stabilizer body 1, and the distribution groove 25 is in conductive connection with the pressure regulating groove 12 and the hydraulic cavity 24;
The reset groove 26 is formed in the stabilizer body 1, and one end, away from the distribution groove 25, of the pressure regulating groove 12 is connected with the reset groove 26 in a conducting manner;
Both ends of the pressure regulating groove 12 are provided with one-way discharge pipes 27;
a transmission member 28 is mounted in the hydraulic cavity 24 and the distribution groove 25 together, two ends of the transmission member 28 are respectively connected with the hydraulic cavity 24 and the distribution groove 25 in a sliding sealing manner, a sealing spring 29 is fixedly mounted in the distribution groove 25, the sealing spring 29 is fixedly connected with the transmission member 28, and the transmission member 28 blocks the distribution groove 25 in an initial state;
The connection part of the distribution groove 25 and the hydraulic cavity 24 is far away from the opening of the distribution groove 25 and is positioned on the movement path of the transmission piece 28;
The stabilizer body 1 is provided with a through groove 3, the distribution groove 25 and the reset groove 26 are connected with the through groove 3 in a conducting way, the through groove 3 is designed in a step shape, the openings of the distribution groove 25 and the reset groove 26 are provided with pressure valves 31, the opening pressures of the pressure valves 31 arranged at the openings of the distribution groove 25 and the reset groove 26 are different, and the opening pressure of the pressure valve 31 corresponding to the reset groove 26 is larger than that of the pressure valve 31 corresponding to the distribution groove 25;
When the size of the stabilizer is actually regulated, as the through groove 3 is formed in the stabilizer body 1, the through groove 3 is in a step type design, at least two steps exist, a worker puts the matched soluble plugging ball downwards through the inner cavity of the drill rod, under the action of gravity, the soluble plugging ball falls into the through groove 3 and stays in the through groove 3 under the interception of the steps of the through groove 3, the plugging of the through groove 3 is realized, at the moment, the worker adjusts the conveying pressure of drilling fluid, so that the hydraulic pressure in the through groove 3 is increased, under the action of hydraulic pushing of the drilling fluid, the transmission member 28 moves into the distribution groove 25, and as the transmission member 28 is jointly installed in the distribution groove 25 and the hydraulic cavity 24, the transmission member 28 is in an I-shaped design, two ends of the transmission member 28 are respectively installed in the distribution groove 25 and the hydraulic cavity 24 in a sliding and sealing mode, under the action of the driving force of the sealing spring 29 in an initial state, the transmission member 28 seals the opening of the distribution groove 25, under the action of hydraulic pressure, the transmission member 28 moves towards the inside of the distribution groove 25, along with the movement of the transmission member 28, one end of the hydraulic cavity 24 with a rod gradually presents negative pressure, the negative pressure promotes hydraulic oil in the inner cavity of the sealing gasket 22 to flow back to the hydraulic cavity 24 so as to realize the shrinkage of the sealing gasket 22, and along with the increase of the movement distance of the transmission member 28, when the transmission member 28 and the opening of the pressure regulating groove 12 are misplaced, the pressure regulating groove 12 is opened at this time, drilling fluid gradually enters the pressure regulating groove 12 under the action of the pressure, and pushes the lifting ring 13 in the pressure regulating groove 12 to move so as to enable the rib sheet 2 to move towards the outside of the stabilizer body 1, the size of the stabilizer is increased, while when the size of the stabilizer is reduced, the drilling hydraulic pressure is further increased so as to enable the pressure valve 31 in the resetting groove 26 to be opened, the drilling fluid flows towards the resetting groove 26, at this time, the lifting ring 13 moves reversely, during the lifting and lowering process of the lifting ring 13, the drilling fluid existing in the pressure regulating groove 12 is discharged through the unidirectional discharge pipe 27 which is unidirectional and opened, and the opening pressure of the unidirectional discharge pipe 27 is larger than the opening pressure of the valves corresponding to the distributing groove 25 and the resetting groove 26, in the practical application, the distributing groove 25 and the resetting groove 26 corresponding to the two groups of reducing components are arranged up and down, respectively in a plurality of steps penetrating through the groove 3, and simultaneously, because the opening pressures of the pressure valves 31 installed at the openings of the distributing groove 25 and the resetting groove 26 are different, when the radius components are regulated, soluble plugging balls with different diameters are respectively put in, and the setting of the two reducing components is only needed by matching with the pressure regulation with different degrees, and the drill rod and the centering degree of the drill bit can be always guided through the alternate regulation of the two groups of reducing components in the practical regulation process, so that the inclination degree of the drill bit in the drilling well diameter component regulation process is reduced.
Example III
As shown in fig. 1 to 7, this embodiment is an improvement on the basis of the second embodiment, and further includes a reinforcing component for reinforcing the connection strength of the rib sheet 2 and the stabilizer body 1;
The reinforcing component comprises a transmission cavity 4, the transmission cavity 4 is arranged in the stabilizer body 1, and the transmission cavity 4 is in conductive connection with a hydraulic cavity 24;
The assembly ring 41 is slidably and hermetically provided with the assembly ring 41 which is symmetrically designed in the transmission cavity 4, and the assembly ring 41 is in clamping connection with the rib plate 2.
The reinforcement assembly further comprises an extension edge 42, the extension edge 42 is fixedly arranged on the stabilizer body 1, and the extension edge 42 is sleeved outside the rib sheet 2;
The reinforcing component further comprises an alloy block 43, the alloy block 43 is inlaid at one end, far away from the assembly sliding block 21, of the rib sheet 2, the alloy block 43 is made of wear-resistant hard alloy materials, the rib sheet 2 is provided with a reinforcing groove 44, the alloy block 43 extends into the reinforcing groove 44, and the sealing groove 23 is positioned on the extending path of the reinforcing groove 44;
In order to enhance the strength and stability of the stabilizer before and after adjustment, a reinforcing component is arranged, the pressure in the transmission cavity 4 is also changed in the process of pressure change in the hydraulic cavity 24, so that the assembly ring 41 is lifted and slid in the transmission cavity 4, the rib plate 2 is locked and in a mode by the assembly ring 41, the rib plate 2 is locked by the assembly ring 41, the rib plates 2 can be integrated, when a certain rib plate 2 is acted by external force, the external force can be dispersed on the rib plates 2, the protection degree of the rib plates 2 is enhanced by matching with the extension edge 42, the sealing performance of the expansion groove 11 can be enhanced by matching with the sealing gasket 22, meanwhile, the abrasion resistance degree of the rib plate 2 is effectively enhanced, the damage probability of the rib plate 2 is reduced in long-time drilling operation, the alloy block 43 is extended into the reinforcing groove 44 and corresponds to the sealing groove 23, the bonding area of the rib plate 2 and the alloy block 43 can be enhanced, the falling probability of the alloy block 43 can be reduced, the falling probability of the rib plate 2 and the gap block 11 can be filled with the sealing gasket 22, the falling probability of the alloy block 43 can be further reduced, and the joint strength of the joint between the rib plate and the alloy block 1 can be further reduced.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The drilling deviation preventing device for drilling comprises a stabilizer body (1) and rib plates (2), wherein the upper end and the lower end of the stabilizer body (1) are respectively in threaded connection with a drill rod and a drill bit, and the rib plates (2) are arranged on the circumferential surface of the stabilizer body (1);
The method is characterized in that: the stabilizer comprises a stabilizer body (1) and a reducing assembly, wherein the stabilizer body is provided with a plurality of stabilizing holes;
the reducing assembly comprises telescopic grooves (11), the stabilizer body (1) is provided with uniformly distributed telescopic grooves (11), and the rib plates (2) are slidably arranged in the telescopic grooves (11);
The stabilizer comprises a pressure regulating groove (12), wherein the pressure regulating groove (12) is formed in the stabilizer body (1), the pressure regulating groove (12) is in conductive connection with a telescopic groove (11), a lifting ring (13) is slidably arranged in the pressure regulating groove (12), and the lifting ring (13) extends into the telescopic groove (11);
The lifting device comprises an assembly sliding block (21), wherein the assembly sliding block (21) is fixedly arranged at one end of the lifting ring (13) positioned in the telescopic groove (11), the assembly sliding block (21) is far away from one side inclined plane of the lifting ring (13), the assembly sliding blocks (21) are in one-to-one correspondence with the rib plates (2), and the assembly sliding block (21) is in sliding connection with the rib plates (2);
The sealing gasket (22) is arranged in the telescopic groove (11), a sealing groove (23) with annular design is formed in the sealing groove (23), the sealing gasket (22) is fixedly arranged in the sealing groove (23), the sealing gasket (22) is in hollow design, and the sealing gasket (22) is made of wear-resistant rubber materials;
The hydraulic cavity (24) is formed in the stabilizer body (1), hydraulic oil is filled in the hydraulic cavity (24), and the hydraulic cavity (24) is connected with the inner cavity of the sealing gasket (22) in a conducting mode;
the hydraulic transmission assembly is arranged in the stabilizer body (1) and is used for adjusting the hydraulic strength in the hydraulic cavity (24) and the pressure regulating groove (12);
The hydraulic transmission assembly comprises a distribution groove (25), the distribution groove (25) is arranged on the stabilizer body (1), and the distribution groove (25) is in conductive connection with the pressure regulating groove (12) and the hydraulic cavity (24);
The reset groove (26) is formed in the stabilizer body (1), and one end, far away from the distribution groove (25), of the pressure regulating groove (12) is connected with the reset groove (26) in a conducting mode;
Both ends of the pressure regulating groove (12) are provided with one-way discharge pipes (27);
A transmission part (28) is arranged in the hydraulic cavity (24) and the distribution groove (25) together, two ends of the transmission part (28) are respectively connected with the hydraulic cavity (24) and the distribution groove (25) in a sliding sealing manner, a sealing spring (29) is fixedly arranged in the distribution groove (25), the sealing spring (29) is fixedly connected with the transmission part (28), and the transmission part (28) seals the distribution groove (25) in an initial state;
the connection part of the distribution groove (25) and the hydraulic cavity (24) is far away from the opening of the distribution groove (25) and is positioned on the movement path of the transmission part (28).
2. A drilling deviation prevention device for drilling according to claim 1, characterized in that: the sealing grooves (23) are designed in a plurality, and the sealing grooves (23) are uniformly arranged along the telescopic grooves (11).
3. A drilling deviation prevention device for drilling according to claim 1, characterized in that: the diameter-changing assemblies are divided into two groups, the two groups of diameter-changing assemblies are distributed on the upper side and the lower side of the stabilizer body (1), and the two groups of diameter-changing assemblies move alternately.
4. A drilling deviation prevention device for drilling according to claim 1, characterized in that: the stabilizer is characterized in that a through groove (3) is formed in the stabilizer body (1), the distribution groove (25) and the reset groove (26) are connected with the through groove (3) in a conducting mode, the through groove (3) is designed in a step shape, pressure valves (31) are arranged at openings of the distribution groove (25) and the reset groove (26), the opening pressures of the pressure valves arranged at the openings of the distribution groove (25) and the reset groove (26) are different, and the opening pressure of the pressure valve (31) corresponding to the reset groove (26) is larger than that of the pressure valve (31) corresponding to the distribution groove (25).
5. Drilling deviation preventing device for drilling according to claim 1 or 4, characterized in that: the device further comprises a reinforcing component, wherein the reinforcing component is used for reinforcing the connection strength of the rib sheet (2) and the stabilizer body (1);
The reinforcing component comprises a transmission cavity (4), the transmission cavity (4) is arranged in the stabilizer body (1), and the transmission cavity (4) is in conductive connection with the hydraulic cavity (24);
The assembly ring (41) is arranged in the transmission cavity (4) in a sliding and sealing mode, the assembly ring (41) is symmetrically arranged, and the assembly ring (41) is connected with the rib sheet (2) in a clamping mode.
6. A drilling deviation prevention device for drilling according to claim 5, wherein: the reinforcement assembly further comprises an extension edge (42), the extension edge (42) is fixedly arranged on the stabilizer body (1), and the extension edge (42) is sleeved outside the rib sheet (2).
7. A drilling deviation prevention device for drilling according to claim 6, wherein: the reinforcing component further comprises an alloy block (43), one end, far away from the assembly sliding block (21), of the rib sheet (2) is inlaid with the alloy block (43), the alloy block (43) is made of wear-resistant hard alloy materials, the rib sheet (2) is provided with a reinforcing groove (44), the alloy block (43) extends into the reinforcing groove (44), and the sealing groove (23) is located on an extending path of the reinforcing groove (44).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410384957.4A CN118049137B (en) | 2024-04-01 | 2024-04-01 | Deviation preventing device for drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410384957.4A CN118049137B (en) | 2024-04-01 | 2024-04-01 | Deviation preventing device for drilling |
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| CN118049137B true CN118049137B (en) | 2024-10-18 |
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| GB9902023D0 (en) * | 1999-01-30 | 1999-03-17 | Pacitti Paolo | Directionally-controlled eccentric |
| CN1423030A (en) * | 2001-11-26 | 2003-06-11 | 施卢默格海外有限公司 | Method and apparatus for determining reservoir properties |
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| US5181576A (en) * | 1991-02-01 | 1993-01-26 | Anadrill, Inc. | Downhole adjustable stabilizer |
| US6230557B1 (en) * | 1998-08-04 | 2001-05-15 | Schlumberger Technology Corporation | Formation pressure measurement while drilling utilizing a non-rotating sleeve |
| CN103696706A (en) * | 2012-09-28 | 2014-04-02 | 中国石油化工股份有限公司 | Remote-control-while-drilling tapered stabilizer |
| CN204627410U (en) * | 2015-05-27 | 2015-09-09 | 长江大学 | A kind of Cylindroid telescopic reducing drilling tool |
| CN108825133A (en) * | 2018-05-22 | 2018-11-16 | 江小三 | A kind of hydraulic auxiliary brake device |
| CN108915613A (en) * | 2018-07-19 | 2018-11-30 | 江小三 | A kind of hydraulic variable diameter stabilizer |
| CN108952578B (en) * | 2018-07-20 | 2019-10-01 | 西南石油大学 | A kind of drilling remote control variable gauge stabilizer |
| CN212177044U (en) * | 2020-03-13 | 2020-12-18 | 成都李工钻探设备有限公司 | Diameter-variable stabilizer for drilling equipment |
| CN115506727B (en) * | 2022-11-08 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | Diameter-variable drilling tool stabilizer |
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- 2024-04-01 CN CN202410384957.4A patent/CN118049137B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9902023D0 (en) * | 1999-01-30 | 1999-03-17 | Pacitti Paolo | Directionally-controlled eccentric |
| CN1423030A (en) * | 2001-11-26 | 2003-06-11 | 施卢默格海外有限公司 | Method and apparatus for determining reservoir properties |
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| CN118049137A (en) | 2024-05-17 |
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