CN112943119B - Hydraulic driving rotary casing shoes - Google Patents
Hydraulic driving rotary casing shoes Download PDFInfo
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- CN112943119B CN112943119B CN202110458578.1A CN202110458578A CN112943119B CN 112943119 B CN112943119 B CN 112943119B CN 202110458578 A CN202110458578 A CN 202110458578A CN 112943119 B CN112943119 B CN 112943119B
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000003825 pressing Methods 0.000 claims description 37
- 229910003460 diamond Inorganic materials 0.000 claims description 8
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- 238000001514 detection method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 11
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 230000006978 adaptation Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/14—Casing shoes for the protection of the bottom of the casing
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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
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
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- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a hydraulic drive rotary casing shoe which comprises a fixing mechanism, a rotating mechanism and a bearing assembly, wherein the rotating mechanism is rotatably arranged on the outer side of the fixing mechanism through the bearing assembly, the fixing mechanism comprises a core shaft and a rotational flow stator, the rotational flow stator is sleeved on the outer side of the core shaft through an octagonal structure, the rotating mechanism comprises a rotational flow rotor which is matched with the rotational flow stator in the direction, and the rotational flow rotor is sleeved on the outer side of the rotational flow stator. The invention discloses a hydraulic drive rotary casing shoe, when a casing is inserted and meets resistance, rotational flow generated by a rotational flow stator flows through by hydraulic force, the rotational flow is sprayed onto a rotational flow rotor, so that the rotational flow rotor is pushed to rotate, and the rotational flow rotor drives the whole rotating mechanism to rotate outside a fixing mechanism, so that the casing shoe passes through a well section which is not beneficial to casing passing, such as diameter reduction, and the like, and the aim of smoothly inserting the casing to a preset depth is fulfilled.
Description
Technical Field
The invention relates to the technical field of petroleum drilling operation casing pipe matching tools, in particular to a hydraulic drive rotary casing shoe.
Background
In the process of running a casing in an oil or gas well, it is important to smoothly run a production casing to a predetermined depth at one time to accomplish a predetermined objective. During the casing running process, due to various reasons such as stratum stability, well track and the like, various factors such as borehole shrinkage, collapse, large frictional resistance and the like which are not beneficial to the casing running in place can be caused. If the casing cannot be run in to the preset depth, resources of a target layer cannot be exploited, and meanwhile, if the casing running process is not smooth, the operation time is increased, and the cost is increased. In order to facilitate the smooth running of the casing to the desired depth, it is sometimes possible to rotate the casing by mechanical power at the wellhead to effect reaming through difficult sections of the well due to shrinkage, collapse, etc. However, this method has a great limitation, and due to the torque limitation of the casing connection thread or surface equipment, it is not easy to rotate the casing, and the casing cannot be run into a predetermined depth. The invention overcomes the difficulties, avoids rotating all the pipe columns to promote the running in, and helps the casing to run smoothly by pushing the casing to scratch the guide shoes by hydraulic force.
Disclosure of Invention
The invention provides a hydraulic drive rotary casing shoe which is used for solving the technical problems that in the process of rotating a casing by mechanical power, the casing is limited by connecting threads or the torque of ground equipment, the casing is not easy to rotate and cannot be driven into a preset depth.
In order to solve the above technical problems, the present invention discloses a hydraulic driving rotary casing shoe, comprising: the rotating mechanism is rotatably arranged on the outer side of the fixing mechanism through the bearing assembly, the fixing mechanism comprises a mandrel and a cyclone stator, the cyclone stator is sleeved on the outer side of the mandrel through an octagonal structure, the rotating mechanism comprises a cyclone rotor matched with the cyclone stator in a matched mode, and the cyclone rotor is sleeved on the outer side of the cyclone stator.
Preferably, the fixing mechanism further includes:
one end of the upper joint is connected with the outer side wall of the mandrel in a threaded connection mode;
the bearing pressing cap is connected with the outer side wall of one end, close to the mandrel, of the upper joint in a threaded connection mode;
and the second pressure cap is connected with the outer side wall of one end, far away from the upper joint, of the mandrel in a threaded connection mode.
Preferably, the rotating mechanism further includes:
the rotating sleeve is sleeved outside the upper joint and is positioned at one end of the upper joint close to the mandrel;
the sliding bearing bush is arranged in the rotating sleeve and is connected with the inner wall of the rotating sleeve in any one of interference fit or positioning pin connection mode;
the reaming shell is connected with the outer side wall of the rotating sleeve in a threaded connection mode, the rotational flow rotor is arranged in the reaming shell, and the rotational flow rotor is connected with the inner wall of the reaming shell in any one mode of interference fit or positioning pin connection;
the eyelet leading shoe head is connected with the outer side wall of the eyelet shell in a threaded connection mode and is located at one end, far away from the eyelet shell, of the rotating sleeve.
Preferably, the bearing assembly comprises:
the first thrust bearing is sleeved on the outer side of the upper joint and positioned between the rotating sleeve and the upper joint, the left end and the right end of the first thrust bearing are respectively contacted with the rotating sleeve shaft shoulder and the upper joint shaft shoulder, and one side of the first thrust bearing, which is far away from the upper joint shaft shoulder, is contacted with the sliding bearing bush;
the second thrust bearing is sleeved outside the upper joint and is positioned between the rotating sleeve and the upper joint, one end of the second thrust bearing is contacted with the side wall of the bearing pressing cap, the other end of the second thrust bearing is contacted with one end of the rotating sleeve, which is far away from the first thrust bearing, and one side of the second thrust bearing, which is far away from the bearing pressing cap, is contacted with one side of the sliding bearing bush, which is far away from the first thrust bearing;
the first radial bearing is sleeved on the outer side of the second pressing cap, the first radial bearing is positioned between the second pressing cap and the reaming shell, and one side of the first radial bearing is in contact with a shaft shoulder of the second pressing cap;
the second radial bearing is sleeved on the outer side of the second pressing cap, the second radial bearing is located between the second pressing cap and the reaming shell, one side of the second radial bearing is in contact with the first radial bearing, and the other side of the second radial bearing is close to the reaming guide shoe head and is in contact with one side of the second pressing cap.
Preferably, a first through hole is arranged in the upper joint, a central hole is arranged at one end, close to the upper joint, of the mandrel, the central hole is connected with the first through hole, a plurality of shunting holes are uniformly formed in the outer side wall of the mandrel, penetrate through the side wall of the mandrel and are communicated with the central hole, a second through hole is obliquely arranged on the reaming shell, the outer wall of the reaming shell is communicated with the inside of the reaming shell through the second through hole, a third through hole is obliquely arranged in the second press cap, one end of the third through hole is communicated with the inside of the reaming guide shoe head, the other end of the third through hole is communicated with the inside of the reaming shell, a plurality of fourth through holes are obliquely arranged in the reaming guide shoe head, the outer wall of the reaming guide shoe head is communicated with the inside of the reaming guide shoe head through the fourth through holes, and a sleeve is arranged at one end, far away from the mandrel, of the upper joint, the outer wall of the sleeve is in threaded connection with the inner wall of the first through hole of the upper joint.
Preferably, the swirl rotor inner chamber shape forms for the partly combination of big cylinder and a plurality of small circle post, the shape of swirl rotor inner chamber contains the arbitrary shape that forms by plane and curved surface combination, the swirl rotor runner can set up to arbitrary one in plane orbit or the three-dimensional orbit, the swirl rotor radially forms by one or more combination in pitch arc, the straight line, the notch shape of swirl rotor can be circular, square arbitrary one or other multiple shapes, the quantity of reposition of redundant personnel hole on the dabber with notch quantity looks adaptation, just reposition of redundant personnel hole shape with notch shape looks adaptation.
Preferably, the cross-sectional area of the eyelet leading shoe head is gradually reduced from one end close to the second pressing cap to one end far away from the second pressing cap, and the cross section of the eyelet leading shoe head can be in any shape.
Preferably, the outer side wall of the reaming shell is provided with a plurality of ribs which are arranged in a spiral shape or a straight strip shape, and the surfaces of the ribs are provided with one or more materials in alloy, diamond and diamond composite sheets.
Preferably, still be provided with a plurality of fixing device in the first through-hole, fixing device includes:
one end of the lifting column is fixedly connected with the inner side wall of the upper joint, the other end of the lifting column is provided with a fixing frame, the fixing frame is L-shaped, one end of the fixing frame is fixedly connected with one end of the lifting column, which is far away from the inner side wall of the upper joint, and the other end of the fixing frame extends into the sleeve and is in contact with the inner wall of the sleeve;
the limiting block is arranged on the inner wall, close to one side of the sleeve, of the fixed frame, the side, close to the inner wall, of the sleeve is arranged to be an inclined surface, the cross section area, close to one end of the lifting column, of the limiting block is smaller than that of the end, far away from the lifting column, of the limiting block, a sliding block is connected to the inclined surface of the limiting block in a sliding mode, one side, far away from the limiting block, of the sliding block is connected with the inner wall of the sleeve in a sliding mode, a connecting plate is arranged at one end, close to the lifting column, of the sliding block, and a roller is arranged on the connecting plate;
the fifth through hole is formed in the fixed frame, a first rotating plate is arranged in the fifth through hole, the upper end and the lower end of the first rotating plate respectively extend to the upper side and the lower side of the fixed frame, the first rotating plate is rotatably connected with the fixed frame through a rotating shaft, and one end of the first rotating plate is in contact with the outer wall of the roller;
the spring is arranged at one end, close to the lifting column, of the first rotating plate, one end of the spring is fixedly connected with one end of the first rotating plate, and the other end of the spring is fixedly connected with the side wall of the lifting column;
the sliding rail is arranged on one side, away from the inner wall of the upper joint, of the fixing frame, a sliding block is connected onto the sliding rail in a sliding mode, a first connecting rod is arranged on one side wall, close to the first rotating plate, of the sliding block, one end of the first connecting rod is hinged to the side wall of the sliding block, and the other end of the first connecting rod is hinged to the side wall of the first rotating plate;
the supporting block is arranged between the lifting column and the sliding rail, a second rotating plate is arranged on the supporting block and is rotatably connected with the supporting block, a second connecting rod is arranged between the second rotating plate and the sliding block, one end of the second connecting rod is hinged with the sliding block, and the other end of the second connecting rod is hinged with the side wall of the second rotating plate.
Preferably, the device further comprises an alarm device, wherein the alarm device comprises:
the rotating speed sensor is arranged on the inner wall of the reaming shell and used for detecting the actual rotating speed of the reaming shell;
the force sensor is arranged between the first thrust bearing and the upper joint shaft shoulder and used for detecting the axial force applied to the first thrust bearing;
the timer is arranged on the reaming shell and used for detecting the rotation duration of the reaming shell;
the alarm is arranged on the sleeve;
the controller is arranged on the sleeve and is electrically connected with the rotating speed sensor, the force measuring sensor, the timer and the alarm respectively;
the controller controls the alarm to alarm based on the detection values of the rotating speed sensor, the force measuring sensor and the timer, and comprises the following steps:
step 1: calculating the axial wear mass of the first thrust bearing by a formula (1) based on the detection values of the rotation speed sensor, the force sensor and the timer:
wherein M is1Is the axial wear mass, K, of the first thrust bearing2Is the wear coefficient of the first thrust bearing, epsilon1Is a correction factor, F, of the first thrust bearing during operation1The axial force applied to the first thrust bearing detected by the force-measuring sensor is represented by pi, which is a circumferential rate and is 3.14, n1Actual rotational speed, r, of the reaming shell detected for the rotational speed sensor1Is the inner diameter, t, of the first thrust bearing1The rotation duration of the reaming shell detected by the timer, rho is the average density of the first thrust bearing, L1Is the axial length of the first thrust bearing;
step 2: calculating an actual remaining life value of the first thrust bearing by formula (2) based on the calculation result of step 1:
wherein, T0Is the actual residual life value, T, of the first thrust bearing1For a predetermined life value, M, of the first thrust bearing0Is the total mass of the first thrust bearing, n2For a preset maximum rotational speed of the first thrust bearing,
is a velocity coefficient;
and step 3: the controller can compare the actual residual life value of the first thrust bearing with the preset residual life value of the first thrust bearing, and when the actual residual life value of the first thrust bearing is smaller than the preset residual life value, the controller can control the alarm to send an alarm prompt.
The technical scheme of the invention has the following advantages: the invention provides a hydraulic drive rotary casing shoe which comprises a fixing mechanism, a rotating mechanism and a bearing assembly, wherein the rotating mechanism is rotatably arranged on the outer side of the fixing mechanism through the bearing assembly, the fixing mechanism comprises a core shaft and a rotational flow stator, the rotational flow stator is sleeved on the outer side of the core shaft through an octagonal structure, the rotating mechanism comprises a rotational flow rotor which is matched with the rotational flow stator in the direction, and the rotational flow rotor is sleeved on the outer side of the rotational flow stator. The invention discloses a hydraulic drive rotary casing shoe, when a casing is inserted and meets resistance, rotational flow generated by a rotational flow stator flows through by hydraulic force, the rotational flow is sprayed onto a rotational flow rotor, so that the rotational flow rotor is pushed to rotate, and the rotational flow rotor drives the whole rotating mechanism to rotate outside a fixing mechanism, so that the casing shoe passes through a well section which is not beneficial to casing passing, such as diameter reduction, and the like, and the aim of smoothly inserting the casing to a preset depth is fulfilled.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the apparatus particularly pointed out in the written description and drawings thereof.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall configuration of a hydraulically driven swivel shoe according to the present invention;
FIG. 2 is a schematic view of the matching of the spindle, the swirl stator and the swirl rotor in the present invention;
FIG. 3 is a schematic view of the overall structure of the fixing device of the present invention;
FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the invention at B in FIG. 4.
In the figure: 1. a mandrel; 2. a swirl stator; 3. a swirling flow rotor; 4. an upper joint; 5. a bearing pressing cap; 6. a second press cap; 7. rotating the sleeve; 8. a sliding bearing bushing; 9. a reaming shell; 10. drawing the toe cap by scratching the eyes; 11. a first thrust bearing; 12. a second thrust bearing; 13. a first radial bearing; 14. a second radial bearing; 15. a first through hole; 16. a central bore; 17. a second through hole; 18. a third through hole; 19. a fourth via hole; 20. a sleeve; 21. a lifting column; 22. a fixing frame; 23. a limiting block; 24. a slider; 25. a connecting plate; 26. a roller; 27. a fifth through hole; 28. a first rotating plate; 29. a rotating shaft; 30. a spring; 31. a slide rail; 32. a slider; 33. a first link; 34. a support block; 35. a second rotating plate; 36. a second link; 37. and a shunt hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1:
an embodiment of the present invention provides a hydraulically driven swivel shoe, as shown in fig. 1-5, comprising: the rotating mechanism is arranged outside the fixing mechanism in a rotating mode through the bearing assembly, the fixing mechanism comprises a mandrel 1 and a cyclone stator 2, the cyclone stator 2 is sleeved on the outer side of the mandrel 1 through an octagonal structure, the rotating mechanism comprises a cyclone rotor 3 matched with the cyclone stator 2 in a matching mode, and the cyclone rotor 3 is sleeved on the outer side of the cyclone stator 2.
The working principle and the beneficial effects of the technical scheme are as follows: the invention provides a hydraulic drive rotary casing shoe, which comprises a fixing mechanism, a rotating mechanism and a bearing assembly, wherein the rotating mechanism is rotationally connected with the outer side of the fixing mechanism through the bearing assembly, when a casing passes through a well section which is not beneficial to the passage of the casing in the running process, liquid flows, the liquid can enter a rotational flow stator 2 through a mandrel 1, then the liquid can flow through the rotational flow stator 2 to form rotational flow, the rotational flow is sprayed onto a rotational flow rotor 3 so as to drive the rotational flow rotor 3 to rotate, the rotational flow rotor 3 further drives the whole rotating mechanism to rotate so as to start the reaming operation, the reaming operation is realized by the hydraulic drive rotating mechanism so that the casing can smoothly pass through the difficult well section, the casing is run to a preset depth, the operation time is shortened, the production cost is saved, the problem that the casing is limited by the torque of connecting threads or ground equipment in the current mechanical power rotary casing process is solved, the problem of difficult realization rotation, whirl rotor 3 set up in the outside of whirl stator 2, and the rotor setting is inside the stator in modes such as being different from screw rod drilling tool, more is favorable to reducing the frictional resistance of sleeve pipe post, makes the sleeve pipe arrive the predetermined depth more easily.
Example 2
On the basis of the above embodiment 1, as shown in fig. 1 to 3, the fixing mechanism further includes:
one end of the upper joint 4 is connected with the outer side wall of the mandrel 1 in a threaded connection mode;
the bearing pressing cap 5 is connected with the outer side wall of one end, close to the mandrel 1, of the upper joint 4 in a threaded connection mode;
the second pressing cap 6 is connected with the outer side wall of one end, far away from the upper joint 4, of the mandrel 1 in a threaded connection mode;
the rotating mechanism further includes:
the rotating sleeve 7 is sleeved outside the upper joint 4, and the rotating sleeve 7 is positioned at one end, close to the mandrel 1, of the upper joint 4;
the sliding bearing bush 8 is arranged in the rotating sleeve 7, and the sliding bearing bush 8 is connected with the inner wall of the rotating sleeve 7 in any one mode of interference fit or positioning pin connection;
the reaming shell 9 is connected with the outer side wall of the rotating sleeve 7 in a threaded connection mode, the rotational flow rotor 3 is arranged in the reaming shell 9, and the rotational flow rotor 3 is connected with the inner wall of the reaming shell 9 in any one mode of interference fit or locating pin connection;
the eyelet leading shoe head 10 is connected with the outer side wall of the eyelet shell 9 in a threaded connection mode, and the eyelet leading shoe head 10 is positioned at one end, far away from the rotating sleeve 7, of the eyelet shell 9;
the bearing assembly includes:
the first thrust bearing 11 is sleeved on the outer side of the upper joint 4, the first thrust bearing 11 is positioned between the rotating sleeve 7 and the upper joint 4, the left end and the right end of the first thrust bearing 11 are respectively contacted with a shaft shoulder of the rotating sleeve 7 and a shaft shoulder of the upper joint 4, and one side, away from the shaft shoulder of the upper joint 4, of the first thrust bearing 11 is contacted with the sliding bearing bush 8;
the second thrust bearing 12 is sleeved on the outer side of the upper joint 4, the second thrust bearing 12 is positioned between the rotating sleeve 7 and the upper joint 4, one end of the second thrust bearing 12 is in contact with the side wall of the bearing pressing cap 5, the other end of the second thrust bearing 12 is in contact with one end of the rotating sleeve 7, which is far away from the first thrust bearing 11, and one side of the second thrust bearing 12, which is far away from the bearing pressing cap 5, is in contact with one side of the sliding bearing bush 8, which is far away from the first thrust bearing 11;
the first radial bearing 13 is sleeved on the outer side of the second pressing cap 6, the first radial bearing 13 is positioned between the second pressing cap 6 and the reaming shell 9, and one side of the first radial bearing 13 is in contact with a shaft shoulder of the second pressing cap 6;
the second radial bearing 14 is sleeved on the outer side of the second pressing cap 6, the second radial bearing 14 is positioned between the second pressing cap 6 and the reaming shell 9, one side of the second radial bearing 14 is contacted with the first radial bearing 13, and the other side of the second radial bearing 14 is contacted with one side of the reaming guide shoe head 10 close to the second pressing cap 6;
a first through hole 15 is arranged in the upper joint 4, a central hole 16 is arranged at one end, close to the upper joint 4, of the mandrel 1, the central hole 16 is connected with the first through hole 15, a plurality of shunting holes 37 are uniformly formed in the outer side wall of the mandrel 1, the shunting holes 37 penetrate through the side wall of the mandrel 1 and are communicated with the central hole 16, a second through hole 17 is obliquely arranged on the eyelet shell 9, the outer wall of the eyelet shell 9 is communicated with the inside of the eyelet shell 9 through the second through hole 17, a third through hole 18 is obliquely arranged in the second press cap 6, one end of the third through hole 18 is communicated with the inside of the eyelet guide shoe head 10, the other end of the third through hole 18 is communicated with the inside of the eyelet shell 9, a plurality of fourth through holes 19 are obliquely arranged in the eyelet guide shoe head 10, and the outer wall of the eyelet guide shoe head 10 is communicated with the inside of the eyelet guide shoe head 10 through the fourth through holes 19, and one end of the upper joint 4, which is far away from the mandrel 1, is provided with a sleeve 20, and the outer wall of the sleeve 20 is in threaded connection with the inner wall of the first through hole 15 of the upper joint 4.
The working principle and the beneficial effects of the technical scheme are as follows: firstly fixing an upper joint 4, installing a first thrust bearing 11 on the upper joint 4, pressing a sliding bearing bush 8 into a rotating sleeve 7 by using a press machine, then sleeving the rotating sleeve 7 pressed into the sliding bearing bush 8 on the upper joint 4, then installing a second thrust bearing 12 on the upper joint 4, wherein two ends of the sliding bearing bush 8 are respectively contacted with the first thrust bearing 11 and the second thrust bearing 12, after the installation is finished, installing a bearing press cap 5 on the outer side of the upper joint 4 in a threaded connection mode, the side wall of the bearing press cap 5 is contacted with the side surface of the second thrust bearing 12, the bearing press cap 5 can play a role of fixing the first thrust bearing 11 and the second thrust bearing 12, then connecting a mandrel 1 with the upper joint 4, screwing an external thread of the mandrel 1 into an internal thread of the upper joint 4, then sleeving swirl stators 2 on the mandrel 1 one by one through an internal eight-way structure, the mandrel 1 is provided with an external eight-way structure matched with an internal eight way of the swirl stators 2, then a second pressing cap 6 is connected to the outer side of the mandrel 1 through threads so as to fix the rotational flow stator 2, then the rotational flow rotor 3 is placed in the reaming shell 9, the rotational flow rotor 3 is connected with the reaming shell 9 through one or more of interference fit or locating pin connection modes, the reaming shell 9 is installed to the outer side of the rotating sleeve 7 through threaded connection, a first radial bearing 13 and a second radial bearing 14 are sequentially installed on the second pressing cap 6, finally, the reaming guide shoe head 10 is connected to the outer side of the reaming shell 9 through threads, so that installation of the rotary casing shoe is achieved, when the rotary casing shoe is used, the upper connector 4 is connected with a casing pipe, when the casing pipe is put in, resistance is met, liquid can flow, the liquid flows into the first through hole 15 through the casing pipe, then enters the central hole 16 of the mandrel 1 from the first through hole 15, one end of the central hole 16 is closed, the liquid flowing into the rotational flow stator 2 through the diversion hole 37, then, a rotational flow is formed, the rotational flow can be sprayed onto the rotational flow rotor 3 and drives the rotational flow rotor 3 to rotate, the rotational flow rotor 3 further drives the whole rotating mechanism to rotate, so that the sleeve enters the reaming operation, the sleeve smoothly passes through the resistance well section, one part of the generated rotational flow flows out through the second through hole 17, the other part of the generated rotational flow enters the inner cavity of the reaming guide shoe head 10 through the third through hole 18, then the rotational flow is discharged from the fourth through hole 19 of the reaming guide shoe head 10, the reaming operation can be smoothly performed through the rotation of the rotating combination, and the sleeve smoothly passes through the resistance well section, so that the sleeve smoothly reaches the preset depth.
Example 3
On the basis of embodiment 2, 3 inner chambers of whirl rotor shape form for the partly combination of big cylinder and a plurality of small circle post, 3 inner chambers of whirl rotor shape contains the arbitrary shape that forms by plane and curved surface combination, 3 runners of whirl rotor can set up to arbitrary one in plane orbit or the three-dimensional orbit, 3 radial one or more combinations by pitch arc, straight line of whirl rotor form, the notch shape of whirl rotor 3 can be arbitrary one or other multiple shapes in circular, square, the quantity of reposition of redundant personnel hole 37 on the dabber 1 with notch quantity looks adaptation, just reposition of redundant personnel hole 37 shape with notch shape looks adaptation.
The working principle and the beneficial effects of the technical scheme are as follows: 3 inner chamber shapes of whirl rotor are partly combination formation of big cylinder and a plurality of small circle post, the shape of 3 inner chambers of whirl rotor contains the arbitrary shape that is formed by plane and curved surface combination, 3 runners of whirl rotor can set up to arbitrary one in plane orbit or the three-dimensional orbit, 3 radial by the pitch arc of whirl rotor, one or more combination in the straight line form, the notch shape of whirl rotor 3 can be circular, arbitrary one or other multiple shapes in the square, the quantity and the notch quantity looks adaptation of reposition of redundant personnel hole 37 on the dabber 1, and reposition of redundant personnel hole 37 shape and notch shape looks adaptation, thereby the holistic variety of device and practicality have been improved, be applicable to multiple scene.
Example 4
On the basis of the embodiment 2 or 3, the cross-sectional area of the eyelet guiding shoe head 10 is gradually reduced from the end close to the second press cap 6 to the end far away from the second press cap 6, and the cross-section of the eyelet guiding shoe head 10 can be in any shape.
The working principle and the beneficial effects of the technical scheme are as follows: the cross section area of the eyelet leading toe cap 10 is gradually reduced from the end close to the second pressing cap 6 to the end far away from the second pressing cap 6, and the cross section of the eyelet leading toe cap 10 can be in any shape, so that the eyelet leading toe cap 10 can play a role in guiding according to different blocked terrains, and the adaptability of the eyelet leading toe cap 10 is improved.
Example 5
On the basis of any one of embodiments 2 to 4, the outer side wall of the reaming shell 9 is provided with a plurality of ribs, the plurality of ribs are arranged into a spiral shape or a straight strip shape, and the surfaces of the ribs are provided with one or more materials of alloy, diamond and diamond composite sheets.
The working principle and the beneficial effects of the technical scheme are as follows: the outer side wall of the reaming shell 9 is provided with a plurality of ribs which are arranged in a spiral shape or a straight strip shape, one or more materials in alloy, diamond and diamond composite sheets are arranged on the surfaces of the ribs, so that the rigidity of the reaming shell 9 can be improved, and the wear resistance and reaming capability of the reaming shell 9 are improved.
Example 6
On the basis of any one of embodiments 2 to 5, as shown in fig. 3 to 5, a plurality of fixing devices are further disposed in the first through hole 15, and each fixing device includes:
one end of the lifting column 21 is fixedly connected with the inner side wall of the upper joint 4, the other end of the lifting column 21 is provided with a fixing frame 22, the fixing frame 22 is L-shaped, one end of the fixing frame 22 is fixedly connected with one end of the lifting column 21, which is far away from the inner side wall of the upper joint 4, and the other end of the fixing frame 22 extends into the sleeve 20 and is in contact with the inner wall of the sleeve 20;
the limiting block 23 is arranged on the inner wall, close to the sleeve 20, of the fixing frame 22, one side, close to the inner wall of the sleeve 20, of the limiting block 23 is arranged to be an inclined surface, the cross sectional area, close to the lifting column 21, of one end of the limiting block 23 is smaller than that of one end, far away from the lifting column 21, of the limiting block 23, a sliding block 24 is connected onto the inclined surface of the limiting block 23 in a sliding mode, one side, far away from the limiting block 23, of the sliding block 24 is connected with the inner wall of the sleeve 20 in a sliding mode, a connecting plate 25 is arranged at one end, close to the lifting column 21, of the sliding block 24, and a roller 26 is arranged on the connecting plate 25;
a fifth through hole 27, wherein the fifth through hole 27 is formed in the fixed frame 22, a first rotating plate 28 is arranged in the fifth through hole 27, the upper end and the lower end of the first rotating plate 28 respectively extend to the upper side and the lower side of the fixed frame 22, the first rotating plate 28 is rotatably connected with the fixed frame 22 through a rotating shaft 29, and one end of the first rotating plate 28 is in contact with the outer wall of the roller 26;
a spring 30, wherein the spring 30 is arranged at one end of the first rotating plate 28 close to the lifting column 21, one end of the spring 30 is fixedly connected with one end of the first rotating plate 28, and the other end of the spring 30 is fixedly connected with the side wall of the lifting column 21;
the slide rail 31 is arranged on one side of the fixed frame 22, which is far away from the inner wall of the upper joint 4, a slide block 32 is connected onto the slide rail 31 in a sliding manner, a first connecting rod 33 is arranged on one side wall of the slide block 32, which is close to one side wall of the first rotating plate 28, one end of the first connecting rod 33 is hinged with the side wall of the slide block 32, and the other end of the first connecting rod 33 is hinged with the side wall of the first rotating plate 28;
the supporting block 34 is arranged between the lifting column 21 and the sliding rail 31, a second rotating plate 35 is arranged on the supporting block 34, the second rotating plate 35 is rotatably connected with the supporting block 34, a second connecting rod 36 is arranged between the second rotating plate 35 and the sliding block 32, one end of the second connecting rod 36 is hinged with the sliding block 32, and the other end of the second connecting rod 36 is hinged with the side wall of the second rotating plate 35.
The working principle and the beneficial effects of the technical scheme are as follows: when the sleeve 20 is in threaded connection with the upper joint 4, the lifting column 21 is started first, the lifting column 21 drives the fixing frame 22 to be away from the inner wall of the upper joint 4, after the sleeve 20 is connected with the upper joint 4, the lifting column 21 is started again, so that one end of the fixing frame 22 is attached to the inner wall of the sleeve 20, at the moment, the side wall of the sliding block 24 is in contact with the inner wall of the sleeve 20, then liquid is injected into the sleeve 20, the liquid passes through the first rotating plate 28 in the flowing process, in the water flowing process, water impacts the first rotating plate 28 and drives the first rotating plate 28 to rotate, one side of the first rotating plate 28 with the spring 30 rotates towards the direction away from the lifting column 21, then the first rotating plate 28 extrudes the roller 26, the sliding block 26 drives the sliding block 24 to slide on the limiting block 23 through the connecting plate 25, the fixing frame 22 is made of rigid material, therefore, the sliding block 24 can gradually extrude the side wall of the sleeve 20 in the sliding process along with the increase of the water flow pressure, the extrusion force of the sliding block 24 on the side wall of the sleeve 20 is gradually increased, when the first rotating plate 28 rotates, the first rotating plate 28 drives the sliding block 32 to slide on the sliding rail 31 towards the direction close to the lifting column 21 through the first connecting rod 33, the sliding block 32 drives the second rotating plate 35 to rotate through the second connecting rod 36, the cross-sectional area inside the upper joint 4 can be reduced through the rotation of the second rotating plate 35, so that the water flow speed passing through the upper joint 4 is increased, a second spring is further arranged on the inner side wall of the fixed frame 22, one end of the second spring is connected with the sliding block 24, the other end of the second spring is connected with the inner wall of the fixed frame 22, when the liquid is stopped being added into the sleeve 20, the sliding block 24 can be restored to the original position under the elastic force of the second spring, the fixing device is arranged, the sliding block 24 can be driven to move by the water flow, and the sliding block 24 extrudes the inner wall of the sleeve 20 according to the pressure of the water flow, make sleeve pipe 20 and top connection 4 zonulae occludens, the connecting thread of sleeve pipe 20 with the 4 junctions of top connection has been protected, prevent to make sleeve pipe 20 and top connection 4 reposition of redundant personnel or cause the damage to connecting thread because of rivers pressure, and adjust the inside cross-sectional area of top connection 4 through second rotor plate 35, thereby the velocity of flow of rivers in the top connection 4 has been accelerated, the rotational flow speed has been improved, and then the reaming speed has been improved, the reaming efficiency has been accelerated, make sleeve pipe 20 reach the predetermined depth more fast, save manufacturing cost.
Example 7
On the basis of any one of embodiments 2 to 6, the alarm device further comprises an alarm device, wherein the alarm device comprises:
the rotating speed sensor is arranged on the inner wall of the reaming shell 9 and used for detecting the actual rotating speed of the reaming shell 9;
the force sensor is arranged between the first thrust bearing 11 and the shaft shoulder of the upper joint 4 and is used for detecting the axial force applied to the first thrust bearing 11;
the timer is arranged on the reaming shell 9 and used for detecting the rotation duration of the reaming shell 9;
the alarm is arranged on the sleeve 20;
the controller is arranged on the sleeve 20 and is electrically connected with the rotating speed sensor, the force measuring sensor, the timer and the alarm respectively;
the controller controls the alarm to alarm based on the detection values of the rotating speed sensor, the force measuring sensor and the timer, and comprises the following steps:
step 1: calculating the axial wear mass of the first thrust bearing 11 by the formula (1) based on the detected values of the rotation speed sensor, the load cell, and the timer:
wherein M is1Is the axial wear mass, K, of the first thrust bearing 112Is the wear coefficient, epsilon, of the first thrust bearing 111Is a correction factor, F, of the first thrust bearing 11 during operation1The axial force applied to the first thrust bearing 11 detected by the force sensor, pi is the circumferential rate, pi is 3.14, n1Actual rotational speed, r, of the outer casing 9 of the reaming, detected for the rotational speed sensor1Is the inner diameter, t, of the first thrust bearing 111The length of rotation of the reaming shell 9 detected by the timer, ρ is the average density of the first thrust bearing 11, L1The axial length of the first thrust bearing 11;
step 2: calculating an actual remaining life value of the first thrust bearing 11 by the formula (2) based on the calculation result of step 1:
wherein, T0Is the actual remaining life value, T, of the first thrust bearing 111For a predetermined life value, M, of the first thrust bearing 110Is the total mass of the first thrust bearing 11, n2For a preset maximum rotational speed of the first thrust bearing 11,
is a velocity coefficient;
and step 3: the controller can compare the actual residual life value of the first thrust bearing 11 with the preset residual life value of the first thrust bearing 11, and when the actual residual life value of the first thrust bearing 11 is smaller than the preset residual life value, the controller can control the alarm to send an alarm prompt.
The working principle and the beneficial effects of the technical scheme are as follows: when the hydraulic drive rotary sleeve shoe is used for a long time, the first thrust bearing 11 is worn, so that the service life of the first thrust bearing 11 is shortened, a rotating speed sensor is arranged on the inner wall of the reaming shell 9, the actual rotating speed of the reaming shell 9 can be detected through the rotating speed sensor, a force measuring sensor is arranged between the first thrust bearing 11 and the upper joint 4, so that the axial force borne by the first thrust bearing 11 is measured, then a timer is used for detecting the rotating time of the reaming shell 9, a controller and an alarm are both arranged at one end, far away from the upper joint 4, of the sleeve 20, according to the detection result, the axial wear mass of the first thrust bearing 11 can be calculated through a formula (1), and in the calculation process, correction factors are combined, wherein the correction factors are related to the working environment of the first thrust bearing 11, whether lubrication exists or not, the lubrication coefficient of a lubricant and the like, the calculation result of the formula (1) is more accurate, the axial wear quality of the first thrust bearing 11 calculated by combining the formula (1) can be calculated by the formula (2), the actual residual life value of the first thrust bearing 11 can be calculated by combining the formula (1), the preset residual life value is arranged in the controller, the controller can compare the actual residual life value of the first thrust bearing 11 with the preset residual life value, when the actual residual life value is smaller than the preset residual life value, the controller can control the alarm to give an alarm prompt, the actual residual life value of the first thrust bearing 11 can be calculated according to the rotating speed and the rotating time of the reaming shell 9 by arranging the alarm device, the life value of the first thrust bearing 11 is monitored, the actual residual life value of the first thrust bearing 11 can be recognized in advance, the alarm is given in time, and a worker is reminded to replace the first thrust bearing 11 in time by the alarm, the operation of the rotary sleeve shoe is prevented from being influenced due to the fact that the first thrust bearing 11 reaches the service life in the using process, the reliability of the device is improved, meanwhile, the integral automation degree of the device is also improved, and alarm devices can be installed on the rest bearings to monitor and alarm, so that the automation degree is further improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A hydraulically driven swivel casing shoe, comprising: the rotating mechanism is rotatably arranged on the outer side of the fixing mechanism through the bearing assembly, the fixing mechanism comprises a mandrel (1) and a cyclone stator (2), the cyclone stator (2) is sleeved on the outer side of the mandrel (1) through an octagonal structure, the rotating mechanism comprises a cyclone rotor (3) matched with the cyclone stator (2) in the direction, and the cyclone rotor (3) is sleeved on the outer side of the cyclone stator (2);
the fixing mechanism further includes:
one end of the upper joint (4) is connected with the outer side wall of the mandrel (1) in a threaded connection mode;
the bearing pressing cap (5) is connected with the outer side wall of one end, close to the mandrel (1), of the upper joint (4) in a threaded connection mode;
the second pressing cap (6) is connected with the outer side wall of one end, far away from the upper joint (4), of the mandrel (1) in a threaded connection mode;
the rotating mechanism further includes:
the rotating sleeve (7) is sleeved on the outer side of the upper joint (4), and the rotating sleeve (7) is positioned at one end, close to the mandrel (1), of the upper joint (4);
the sliding bearing bush (8) is arranged in the rotating sleeve (7), and the sliding bearing bush (8) is connected with the inner wall of the rotating sleeve (7) in any one of interference fit or positioning pin connection mode;
the reaming shell (9) is connected with the outer side wall of the rotating sleeve (7) in a threaded connection mode, the rotational flow rotor (3) is arranged in the reaming shell (9), and the rotational flow rotor (3) is connected with the inner wall of the reaming shell (9) in any one mode of interference fit or locating pin connection;
the eyelet leading shoe head (10) is connected with the outer side wall of the eyelet shell (9) in a threaded connection mode, and the eyelet leading shoe head (10) is positioned at one end, far away from the rotating sleeve (7), of the eyelet shell (9);
the bearing assembly includes:
the first thrust bearing (11) is sleeved on the outer side of the upper joint (4), the first thrust bearing (11) is positioned between the rotating sleeve (7) and the upper joint (4), the left end and the right end of the first thrust bearing (11) are respectively contacted with a shaft shoulder of the rotating sleeve (7) and a shaft shoulder of the upper joint (4), and one side, far away from the shaft shoulder of the upper joint (4), of the first thrust bearing (11) is contacted with the sliding bearing bush (8);
the second thrust bearing (12), the second thrust bearing (12) is sleeved on the outer side of the upper joint (4), the second thrust bearing (12) is located between the rotating sleeve (7) and the upper joint (4), one end of the second thrust bearing (12) is in contact with the side wall of the bearing pressing cap (5), the other end of the second thrust bearing (12) is in contact with one end, far away from the first thrust bearing (11), of the rotating sleeve (7), and one side, far away from the bearing pressing cap (5), of the second thrust bearing (12) is in contact with one side, far away from the first thrust bearing (11), of the sliding bearing bush (8);
the first radial bearing (13) is sleeved on the outer side of the second pressing cap (6), the first radial bearing (13) is positioned between the second pressing cap (6) and the reaming shell (9), and one side of the first radial bearing (13) is in contact with a shaft shoulder of the second pressing cap (6);
the second radial bearing (14), the second radial bearing (14) is sleeved on the outer side of the second pressing cap (6), the second radial bearing (14) is positioned between the second pressing cap (6) and the reaming shell (9), one side of the second radial bearing (14) is contacted with the first radial bearing (13), and the other side of the second radial bearing (14) is contacted with one side, close to the second pressing cap (6), of the reaming guide shoe head (10);
the upper joint is characterized in that a first through hole (15) is formed in the upper joint (4), the mandrel (1) is close to one end of the upper joint (4) to form a central hole (16), the central hole (16) is connected with the first through hole (15), a plurality of shunt holes (37) are uniformly formed in the outer side wall of the mandrel (1), the shunt holes (37) penetrate through the side wall of the mandrel (1) and are communicated with the central hole (16), a second through hole (17) is obliquely formed in the reaming shell (9), the outer wall of the reaming shell (9) is communicated with the inside of the reaming shell (9) through the second through hole (17), a third through hole (18) is obliquely formed in the second press cap (6), one end of the third through hole (18) is communicated with the inside of the reaming guide shoe head (10), and the other end of the third through hole (18) is communicated with the inside of the reaming shell (9), a plurality of fourth through holes (19) are obliquely arranged in the eyelet leading toe cap (10), the outer wall of the eyelet leading toe cap (10) is communicated with the inside of the eyelet leading toe cap (10) through the fourth through holes (19), one end of the mandrel (1) is far away from the upper joint (4) and is provided with a sleeve (20), and the outer wall of the sleeve (20) is in threaded connection with the inner wall of the first through hole (15) of the upper joint (4).
2. The hydraulically driven rotary casing shoe as claimed in claim 1, characterized in that the shape of the inner cavity of the cyclone rotor (3) is a combination of a large cylinder and a part of a plurality of small cylinders, the shape of the inner cavity of the cyclone rotor (3) comprises any shape formed by combining a plane and a curved surface, the flow channel of the cyclone rotor (3) can be set to any one of a plane track or a three-dimensional track, the radial direction of the cyclone rotor (3) is formed by combining one or more of an arc line and a straight line, the shape of the notch of the cyclone rotor (3) can be any one of a circle and a square or other shapes, the number of the diversion holes (37) on the mandrel (1) is matched with the number of the notches, and the shape of the diversion holes (37) is matched with the shape of the notch.
3. The hydraulically driven rotary casing shoe as claimed in claim 1, characterized in that the cross-sectional area of the eyelet guide shoe head (10) decreases from the end close to the second gland (6) to the end far from the second gland (6), and the cross-section of the eyelet guide shoe head (10) may be of any shape.
4. The hydraulically driven rotary casing shoe as claimed in claim 1, characterized in that the outer side wall of the reaming shell (9) is provided with a plurality of ribs, a plurality of the ribs are arranged in a spiral shape or a straight strip shape, and the surface of each rib is provided with one or more materials selected from alloy, diamond and diamond compact.
5. The hydraulically driven rotating casing shoe as claimed in claim 1, characterized in that a plurality of fastening means are also arranged in the first through-hole (15), said fastening means comprising:
the lifting column (21), one end of the lifting column (21) is fixedly connected with the inner side wall of the upper joint (4), the other end of the lifting column (21) is provided with a fixed frame (22), the fixed frame (22) is arranged in an L shape, one end of the fixed frame (22) is fixedly connected with one end, far away from the inner side wall of the upper joint (4), of the lifting column (21), and the other end of the fixed frame (22) extends into the sleeve (20) and is in contact with the inner wall of the sleeve (20);
the limiting block (23) is arranged on the inner wall, close to one side of the sleeve (20), of the fixing frame (22), the cross section area, close to one side of the inner wall of the sleeve (20), of the limiting block (23) is arranged to be an inclined plane, the cross section area, close to the lifting column (21), of one end of the limiting block (23) is smaller than the cross section area, close to the lifting column (21), of one end of the limiting block (23), a sliding block (24) is connected to the inclined plane of the limiting block (23) in a sliding mode, one side, far away from the limiting block (23), of the sliding block (24) is connected with the inner wall of the sleeve (20) in a sliding mode, a connecting plate (25) is arranged at one end, close to the lifting column (21), of the sliding block (24), and a roller (26) is arranged on the connecting plate (25);
the fifth through hole (27) is formed in the fixed frame (22), a first rotating plate (28) is arranged in the fifth through hole (27), the upper end and the lower end of the first rotating plate (28) respectively extend to the upper side and the lower side of the fixed frame (22), the first rotating plate (28) is rotatably connected with the fixed frame (22) through a rotating shaft (29), and one end of the first rotating plate (28) is in contact with the outer wall of the roller (26);
the spring (30) is arranged at one end, close to the lifting column (21), of the first rotating plate (28), one end of the spring (30) is fixedly connected with one end of the first rotating plate (28), and the other end of the spring (30) is fixedly connected with the side wall of the lifting column (21);
the sliding rail (31) is arranged on one side, away from the inner wall of the upper joint (4), of the fixed frame (22), a sliding block (32) is connected onto the sliding rail (31) in a sliding mode, a first connecting rod (33) is arranged on one side wall, close to the first rotating plate (28), of the sliding block (32), one end of the first connecting rod (33) is hinged to the side wall of the sliding block (32), and the other end of the first connecting rod (33) is hinged to the side wall of the first rotating plate (28);
the lifting column (21) is provided with a sliding rail (31), the supporting block (34) is arranged between the lifting column (21) and the sliding rail (31), a second rotating plate (35) is arranged on the supporting block (34), the second rotating plate (35) is rotatably connected with the supporting block (34), a second connecting rod (36) is arranged between the second rotating plate (35) and the sliding block (32), one end of the second connecting rod (36) is hinged with the sliding block (32), and the other end of the second connecting rod (36) is hinged with the side wall of the second rotating plate (35).
6. The hydraulically driven rotary casing shoe of claim 1, further comprising an alarm device, the alarm device comprising:
the rotating speed sensor is arranged on the inner wall of the reaming shell (9) and used for detecting the actual rotating speed of the reaming shell (9);
the force measuring sensor is arranged between the first thrust bearing (11) and a shaft shoulder of the upper joint (4) and is used for detecting the axial force applied to the first thrust bearing (11);
the timer is arranged on the reaming shell (9) and used for detecting the rotation duration of the reaming shell (9);
the alarm is arranged on the sleeve (20);
the controller is arranged on the sleeve (20) and is electrically connected with the rotating speed sensor, the force measuring sensor, the timer and the alarm respectively;
the controller controls the alarm to alarm based on the detection values of the rotating speed sensor, the force measuring sensor and the timer, and comprises the following steps:
step 1: calculating the axial wear mass of the first thrust bearing (11) by formula (1) based on the detected values of the speed sensor, the load cell and the timer:
wherein M is1For the axial wear quality of the first thrust bearing (11), K2 is the wear factor of the first thrust bearing (11), ε1Is a correction factor, F, of the first thrust bearing (11) in operation1The axial force applied to the first thrust bearing (11) detected by the force sensor, wherein pi is the circumferential rate and is 3.14, and n is1For the rotation speed sensor to detectActual rotational speed, r, of the reaming shell (9)1Is the inner diameter, t, of the first thrust bearing (11)1The length of rotation of the reaming shell (9) detected for the timer, p being the average density of the first thrust bearing (11), L1Is the axial length of the first thrust bearing (11);
step 2: calculating an actual remaining life value of the first thrust bearing (11) by formula (2) based on the calculation result of step 1:
wherein, T0Is the actual remaining life value, T, of the first thrust bearing (11)1For a predetermined life value, M, of the first thrust bearing (11)0Is the total mass of the first thrust bearing (11), n2For a predetermined maximum rotational speed of the first thrust bearing (11),
is a velocity coefficient;
and step 3: the controller can compare the actual residual life value of the first thrust bearing (11) with the preset residual life value of the first thrust bearing (11), and when the actual residual life value of the first thrust bearing (11) is smaller than the preset residual life value, the controller can control the alarm to send an alarm prompt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458578.1A CN112943119B (en) | 2021-04-27 | 2021-04-27 | Hydraulic driving rotary casing shoes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458578.1A CN112943119B (en) | 2021-04-27 | 2021-04-27 | Hydraulic driving rotary casing shoes |
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| CN112943119A CN112943119A (en) | 2021-06-11 |
| CN112943119B true CN112943119B (en) | 2022-02-08 |
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| CN202110458578.1A Active CN112943119B (en) | 2021-04-27 | 2021-04-27 | Hydraulic driving rotary casing shoes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113622837B (en) * | 2021-09-18 | 2022-05-10 | 河北上善石油机械有限公司 | Screw hydraulic rotary guide shoe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401820B1 (en) * | 1998-01-24 | 2002-06-11 | Downhole Products Plc | Downhole tool |
| CN106703716A (en) * | 2017-01-12 | 2017-05-24 | 长江大学 | Hydraulic drive turbine type reaming guide shoe tool |
| CN108625786A (en) * | 2017-03-24 | 2018-10-09 | 中国石油化工股份有限公司 | A kind of rotation reaming hole guide shoe and pipe string |
| CN112483018A (en) * | 2020-12-10 | 2021-03-12 | 中国石油集团渤海钻探工程有限公司 | Double-acting sleeve rotating guide shoe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7681637B2 (en) * | 2006-02-27 | 2010-03-23 | Bradley L Frazier | Self-orienting guide shoe |
-
2021
- 2021-04-27 CN CN202110458578.1A patent/CN112943119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401820B1 (en) * | 1998-01-24 | 2002-06-11 | Downhole Products Plc | Downhole tool |
| CN106703716A (en) * | 2017-01-12 | 2017-05-24 | 长江大学 | Hydraulic drive turbine type reaming guide shoe tool |
| CN108625786A (en) * | 2017-03-24 | 2018-10-09 | 中国石油化工股份有限公司 | A kind of rotation reaming hole guide shoe and pipe string |
| CN112483018A (en) * | 2020-12-10 | 2021-03-12 | 中国石油集团渤海钻探工程有限公司 | Double-acting sleeve rotating guide shoe |
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