CN116988744B - Expansion sealing centralizer - Google Patents
Expansion sealing centralizer Download PDFInfo
- Publication number
- CN116988744B CN116988744B CN202311265855.2A CN202311265855A CN116988744B CN 116988744 B CN116988744 B CN 116988744B CN 202311265855 A CN202311265855 A CN 202311265855A CN 116988744 B CN116988744 B CN 116988744B
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- China
- Prior art keywords
- block
- piece
- protection piece
- protection
- well section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000004575 stone Substances 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 15
- 230000001681 protective effect Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
Abstract
The application discloses an expansion sealing centralizer, which belongs to the field of centralizers, and comprises a body, wherein the body is used for supporting a sucker rod, two sides of the body are movably connected with a limited pipe, and the surface of the body is provided with an adjusting mechanism; the adjusting mechanism is used for supporting the body and controlling the sucker rod in the body to be positioned at the center of the well section pipe column. Can be in the inside of well section tubular column to the outside removal of body through the protection piece, realization device and sucker rod, the protection piece supports the well section tubular column, realization device can be fixed in the inside of well section tubular column, moving piece control connecting rod and protection piece keep corresponding state, it is more convenient to make the protection piece keep corresponding state, and the longitudinal groove is provided with the multiunit, make things convenient for the third to extend the piece and can fix in different longitudinal grooves, it is fixed to make the protection piece can be in the inside of not unidimensional well section tubular column, after the protection piece wearing and tearing, can control the protection piece through moving the moving piece.
Description
Technical Field
The application relates to the field of centralizers, in particular to an expansion seal centralizer.
Background
The centralizer is an oil extraction tool applied to an oil field pumping well, and is a novel product capable of improving the pumping efficiency of an oil pump; the automatic opening and closing structure of the sliding valve is adopted and is connected to the sucker rod, when the sucker rod descends, the sliding valve ascends to open the oil duct on the centralizing body, and when the sucker rod ascends, the sliding valve descends to close the oil duct on the centralizing body.
Through the segmentation lifting liquid column, the segmentation reduces the load and the pump load of sucker rod, reduces the pump leakage, reduces the elastic elongation deformation of sucker rod, reduces stroke loss to improve the effective stroke of oil-well pump, increase pump barrel liquid charge volume, improve the pump efficiency.
The Chinese patent with the authorized bulletin number of CN106194055A discloses a centralizer, which comprises a guide centralizing group and a lantern centralizing assembly which are sequentially arranged along the well entering sequence, and can play a guide role, so that the problem that the centralizer in the prior art does not have the guide role is solved.
The chinese patent with the issued publication number CN106194055a discloses a centralizer, and in the well repair operation, the centralizer in the embodiment of the present application can use a power mechanism to provide power for the centralizer after the pipe string is lowered into a set position. The lower centralizing seat is driven by the driving piece to drive the centralizing block to move along the direction of the first end of the upper centralizing seat towards the central pipe. The righting block can be spread under the action of the component forces in the horizontal direction and the vertical direction. The centering device realizes centering of the horizontal well section pipe column in a mode of increasing the outer diameter, and ensures stability and accuracy of a drilling target of the operation pipe column.
The first method is characterized in that the guide righting group and the lantern righting component are sequentially arranged along the well entering sequence, so that the guide effect can be achieved, the problem that the centralizer does not have the guide effect is solved, the centering of the horizontal well section pipe column is achieved in a mode that the outer diameter of the centralizer is increased, the stability and accuracy of a drilling target of the operation pipe column are guaranteed, the centralizer blocks between the well section pipe column and the sucker rod and is used for protecting the sucker rod, but the centralizer is not suitable for a corresponding well Duan Guanzhu after friction is serious, and the sucker rod is difficult to limit to the centering position of the well section pipe column.
Disclosure of Invention
Aiming at the problems existing in the prior art, the application aims to provide the expansion sealing centralizer, which can move to the outer side of a body through the protection block, so that the device and the sucker rod are positioned in the well section pipe column, the protection block supports the well section pipe column, the device can be fixed in the well section pipe column, the movable part controls the connecting rod and the protection block to keep corresponding states, the protection block keeps corresponding states more conveniently, the longitudinal grooves are provided with a plurality of groups, the third extension block can be conveniently fixed in different longitudinal grooves, the protection block can be positioned in the well section pipe column with different sizes for fixing, after the protection block is worn, the movable part can be moved to control the protection block, so that the protection block still supports the well section pipe column, and the use effect is better.
In order to solve the problems, the application adopts the following technical scheme.
An expansion sealing centralizer comprises a body, wherein the body is used for supporting a sucker rod, two sides of the body are movably connected with limiting pipes, and an adjusting mechanism is arranged on the surface of the body;
the adjusting mechanism is used for supporting the body and controlling the sucker rod in the body to be positioned at the center of the well section pipe column;
the adjusting mechanism comprises a moving part which is in sliding connection with the body, one side, close to the limiting pipe, of the moving part is rotationally connected with a fixing part, the periphery of the moving part is rotationally connected with a connecting rod, one end, far away from the moving part, of the connecting rod is rotationally connected with a protecting block, and a limiting rod is fixedly connected between the bottom of the protecting block and the body.
Further, the moving part extends to the direction of the body close to one side of the body to form a second extending block, and the fixing part extends to the direction of the body close to one side of the body to form a third extending block.
Further, a transverse groove for accommodating the transverse movement of the second extension block is formed in the top of the body, the rear side groove wall of the transverse groove extends to the rear side to form a plurality of longitudinal grooves distributed at equal intervals, the width of each longitudinal groove is smaller than that of the second extension block, and the width of each longitudinal groove is the same as that of the third extension block.
Further, the moving part extends to the direction of the fixed part to form an extending block, an arc-shaped groove is formed in the fixed part corresponding to the rotating track of the extending block, a second spring is welded in the arc-shaped groove, and one side, close to the extending block, of the second spring is attached to the extending block.
Further, the inside both sides of protection piece all are provided with the dead lever of detachable connection, right side the right side of dead lever extends to be formed with the kicking block that promotes the interior soil stone piece of well section tubular column, the holding tank that holds the dead lever and remove has been seted up to the inside of protection piece.
Further, a plurality of circular grooves are formed in the surface of the fixing rod, balls are placed in the circular grooves, the tops of the balls penetrate through the tops of the protection blocks and extend out of the protection blocks, and the protection blocks and the fixing rod limit the balls, so that the balls rotate in the protection blocks.
Further, the inside sliding connection of protection piece has the movable block, the top downwardly extending of movable block forms first extension piece, one side welding of first extension piece has first spring, the movable block is in the bottom of dead lever and laminates with the bottom of dead lever mutually.
Further, the top of kicking block is higher than the top of ball, the cross-sectional shape of the right half of kicking block is the isosceles triangle of the direction of being convenient for, the inside rotation of body is connected with the inner ring, inner ring and restriction pipe fixed connection.
Further, the inside of restraint pipe is provided with reinforcing mechanism, reinforcing mechanism includes a plurality of sliding connection in the inside stripper plate of restraint pipe, the one end fixedly connected with rubber block that the stripper plate is close to the centre of a circle of restraint pipe, the one end that the stripper plate was kept away from to the rubber block passes the inner wall of restraint pipe.
Further, the surface rotation of restrictor tube is connected with the swivel ring, the recess that the stripper plate of being convenient for stretches out has been seted up to the inside of swivel ring, the cross-sectional shape of stripper plate is right trapezoid, and the swivel ring after the rotation extrudes the inclined plane of stripper plate.
Compared with the prior art, the application has the beneficial effects that:
1. according to the scheme, the protection block can move to the outer side of the body, the device and the sucker rod are arranged in the well section pipe column, the protection block supports the well section pipe column, the device can be fixed in the well section pipe column, the moving part controls the connecting rod and the protection block to keep corresponding states, the protection block is kept to be more convenient to correspond to the states, the longitudinal grooves are provided with multiple groups, the third extension block can be fixed in different longitudinal grooves, the protection block can be fixed in the well section pipe column with different sizes, after the protection block is worn, the protection block can be controlled by moving the moving part, the protection block still supports the well section pipe column, the using effect is better, the moving part and the fixing part can drive the multiple groups of protection blocks to synchronously move, and the body and the sucker rod in the body are kept in the middle position of the well section pipe column, so that the using effect is better.
2. According to the scheme, the width of the second extending block is larger than that of the third extending block, the width of the third extending block is identical to that of the longitudinal groove, the third extending block can rotate to enter the inside of the longitudinal groove, but the second extending block can be blocked by the longitudinal groove, the second spring is arranged in the arc-shaped groove, the second spring is extruded by the rotation of the extending block, after the fixing piece reaches a proper position, the moving piece is loosened, and the moving piece and the extending block return to the original position under the elasticity of the second spring, so that the third extending block is clamped into the inside of the longitudinal groove more conveniently.
3. This scheme is through setting up the kicking block in the decurrent one side of protection piece, when sucker rod and device remove in the inside of well section tubular column, the kicking block pushes away the inside stone of well section tubular column, prevents that the protection piece from directly striking with the stone, causes the wearing and tearing of protection piece more violently, even the damage of device, makes device life longer, and the dead lever can be changed with the kicking block, and is better to the whole protection effect of device.
4. This scheme is after the dead lever reaches the suitable position, upwards remove the dead lever, the dead lever upwards moves the back, the movable block no longer receives the stop of dead lever, and remove original position, and the movable block supports the dead lever, prevent that the dead lever from moving downwards, make ball and the inner wall contact of well Duan Guanzhu, change into rolling friction from original sliding friction, make the device wearing and tearing littleer, life is longer, and the ball all can be changed, the whole protection effect to the device is better, and the dead lever is along with the restriction that receives the movable block, prevent that the ball from moving under the stop of stone in the well section tubular column, thereby avoid the ball to the inside withdrawal of protection piece.
5. The cross-sectional shape through the kicking block right half is isosceles triangle, make the kicking block better to the promotion effect of stone, when the stone is too big, through the both sides of kicking block for the inclined plane, the stone extrudees the kicking block, and the kicking block is connected with the protection piece, and be connected through the restriction pole between protection piece and the body, it is rotatory to bring protection piece and restriction pole through the removal of kicking block, and the restriction pole is connected with the body, and rotate between body and the inner ring, make the body rotatory at the surface of inner ring, prevent that the device from directly striking with big stone and leading to the device to damage.
6. This scheme is through passing the sucker rod with the restriction pipe with the inner ring, then rotatory swivel ring, make the recess groove side of swivel ring extrude the inclined plane of stripper plate, make the stripper plate receive the inside removal at the restriction pipe after the extrusion, make the stripper plate extrude the rubber brick, be difficult to rotatory back when the swivel ring, fix between swivel ring and the restriction pipe through utilizing the bolt, make rubber brick and sucker rod laminate more, make fixed effect better between restriction pipe and the sucker rod, and the material of rubber brick prevents to consolidate and cause the destruction to the sucker rod, make fixed more firm between device and the sucker rod.
Drawings
FIG. 1 is a schematic view of the structure of a centralizer of the present application;
FIG. 2 is a schematic structural view of the reinforcement mechanism of the present application;
FIG. 3 is a cross-sectional view of the body of the present application;
FIG. 4 is a schematic view of the structure of the adjusting mechanism of the present application;
FIG. 5 is a side view of the fastener of the present application;
FIG. 6 is a schematic view of the structure of the adjusting mechanism of the present application;
FIG. 7 is a schematic view showing the internal structure of the protection block of the present application;
FIG. 8 is a schematic view of a structure of a fixing rod according to the present application;
FIG. 9 is a schematic view of the structure of the centralizer and inner ring of the application.
The reference numerals in the figures illustrate:
1. a restrictor tube; 2. a reinforcement mechanism; 21. a rotating ring; 211. a groove; 22. an extrusion plate; 23. a rubber block; 3. a body; 31. a transverse slot; 32. a longitudinal slot; 33. an inner ring; 4. an adjusting mechanism; 41. a protection block; 411. a top block; 412. a fixed rod; 413. a ball; 414. a receiving groove; 415. a moving block; 416. a first spring; 417. a first extension block; 418. a circular groove; 42. a connecting rod; 43. a moving member; 431. a second extension block; 432. a protruding block; 44. a fixing member; 441. a third extension block; 442. an arc-shaped groove; 443. a second spring; 45. and a restraining bar.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.
Parameters of well Duan Guanzhu:
5 inches of sleeve, the type of the sleeve is phi 127, the wall thickness of the tube is 9.19mm, the volume of the tube body is 1000m/3.4m, and the volume of the tube body is 1000m/9.72 m;
5 inches of sleeve, the type of the sleeve is phi 127, the wall thickness of the tube is 12.14mm, the volume of the tube body is 1000m/4.38m, and the volume of the tube body is 1000m/8.29 m;
7 inches of sleeve, 177.8 sleeve with the type of phi, 10.36mm of wall thickness of the tube, 1000m/5.45m of volume of the tube and 1000m/19.38m of volume of the tube;
7 inch sleeve, 177.8 sleeve with 12.65mm wall thickness, 1000m/6.56m volume and 1000m/18.27m inner volume.
Referring to fig. 1 and 6, an expansion seal centralizer comprises a body 3, wherein the body 3 is used for supporting a sucker rod, two sides of the body 3 are movably connected with a limiting pipe 1, and an adjusting mechanism 4 is arranged on the surface of the body 3; the adjusting mechanism 4 is used for supporting the body 3 and controlling the sucker rod in the body 3 to be positioned at the center of the well section pipe column; the adjusting mechanism 4 comprises a moving part 43 which is in sliding connection with the body 3, one side, close to the limiting pipe 1, of the moving part 43 is rotationally connected with a fixing part 44, the periphery of the moving part 43 is rotationally connected with a connecting rod 42, one end, far away from the moving part 43, of the connecting rod 42 is rotationally connected with a protecting block 41, and a limiting rod 45 is fixedly connected between the bottom of the protecting block 41 and the body 3.
As shown in fig. 1 and fig. 3 to fig. 6, a side, close to the body 3, of the moving member 43 extends towards the body 3 to form a second extending block 431, a side, close to the body 3, of the fixing member 44 extends towards the body 3 to form a third extending block 441, a transverse slot 31 for accommodating the second extending block 431 to move transversely is formed in the top of the body 3, a rear slot wall of the transverse slot 31 extends towards the rear side to form a plurality of longitudinal slots 32 distributed at equal intervals, the width of the longitudinal slot 32 is smaller than that of the second extending block 431, the width of the longitudinal slot 32 is the same as that of the third extending block 441, the moving member 43 extends towards the direction of the fixing member 44 to form an extending block 432, an arc slot 442 is formed in the fixing member 44 corresponding to a rotation track of the extending block 432, a second spring 443 is welded in the arc slot 442, and one side, close to the extending block 432, of the second spring 443 is attached to the extending block 432.
The device passes through the sucker rod, the device and the sucker rod are fixed by using the limiting pipe 1, then the protecting block 41 is rotated, the third extending block 441 leaves from the inside of the longitudinal groove 32 to the inside of the transverse groove 31, the moving piece 43 and the fixing piece 44 can move on the surface of the body 3, the second extending block 431 of the moving piece 43 and the third extending block 441 of the fixing piece 44 are both positioned in the inside of the transverse groove 31, the moving of the fixing piece 44 and the moving piece 43 is more convenient, the rotating of the connecting rod 42 is controlled by moving the fixing piece 44 and the moving piece 43, the position of the protecting block 41 is controlled by moving the connecting rod 42, the protecting block 41 can move to the outside of the body 3, the device and the sucker rod are positioned in the inside of the well section pipe column, the protecting block 41 supports the well section pipe column, the device can be fixed in the inside of the well section pipe column, the limiting rod 45 is connected between the protecting block 41 and the body 3, the moving of the protecting block 41 is limited, the protecting block 41 is enabled to be more stable, the protecting block 41 is enabled to be attached to the inner wall 441 of the well Duan Guanzhu, then the rotating of the fixing piece 44 is enabled to move more conveniently, the moving of the fixing piece 44 is enabled to move to the corresponding to the inside of the longitudinal groove 32, the connecting rod 44 is not to be positioned in the corresponding to the longitudinal groove 32, the state of the 3, the inner side of the 3 is kept in the state of the 3, and the 3 is kept in the state of the corresponding to be more than the 3, the inner side of the 3 is kept in the 3, and the 3 is kept in the state of the 3, and the state is kept in the state of the 3 is kept in the corresponding to be more than the 3, and the inner side of the 3 is kept in the 3 and 3, and 3 is kept in the condition can be in the 3 and 3, 95/8, 75/8, 7, 51/25, 41/2, each having a different inside diameter), when the protection block 41 is worn, the protection block 41 may be controlled by moving the moving member 43, so that the protection block 41 still supports the wellbore tubular string, the use effect is better, moving the moving member 43 and the fixing member 44 may drive the plurality of groups of protection blocks 41 to move synchronously, so that the body 3 and the sucker rod inside the body 3 are kept at the middle position of the wellbore tubular string, the use effect is better, by rotating the fixing member 44, the fixing member 44 slides with the third extension block 441 from the inside of the longitudinal slot 32 to the inside of the transverse slot 31, so that the third extension block 441 is no longer blocked by the longitudinal slot 32, the fixing member 44 may slide on the surface of the body 3, and the fixing member 44 may slide with the moving member 43 on the surface of the body 3, the second extending block 431 slides in the transverse slot 31 to make the moving member 43 move more stably, the width of the second extending block 431 is larger than that of the third extending block 441, the third extending block 441 has the same width as that of the longitudinal slot 32, the third extending block 441 can rotate into the longitudinal slot 32, but the second extending block 431 is blocked by the longitudinal slot 32, after the fixing member 44 rotates, the third extending block 441 is blocked into the longitudinal slot 32 to limit the movement of the moving member 43, and the fixing member 44 rotates to make the extending block 432 relatively move in the arc slot 442, the arc slot 442 is internally provided with the second spring 443 to make the extending block 432 rotate to squeeze the second spring 443, after the fixing member 44 reaches a proper position, the moving member 43 is released, the moving member 43 and the extending block 432 return to the original position under the elasticity of the second spring 443, it is convenient for the third extension piece 441 to be caught inside the longitudinal groove 32.
As shown in fig. 7 to 8, two sides of the inside of the protection block 41 are respectively provided with a fixing rod 412 which is detachably connected, a top block 411 for pushing stones in the well section pipe column is formed by extending the right side of the fixing rod 412 on the right side, and an accommodating groove 414 for accommodating the movement of the fixing rod 412 is formed in the inside of the protection block 41.
Through setting up kicking block 411 in the decurrent one side of protection piece 41, when sucker rod and device remove in the inside of well section tubular column, kicking block 411 pushes away the inside stone of well section tubular column, prevents that protection piece 41 from directly striking with the stone, causes the wearing and tearing of protection piece 41 more violently, even the damage of device, makes device life longer, and dead lever 412 and kicking block 411 can change, and is better to the whole protection effect of device.
As shown in fig. 1 and fig. 7 to fig. 8, the surface of the fixed rod 412 is provided with a plurality of circular grooves 418, balls 413 are placed in the circular grooves 418, the tops of the balls 413 penetrate through the top of the protection block 41 and extend out of the protection block 41, the protection block 41 and the fixed rod 412 limit the balls 413, the balls 413 rotate in the protection block 41, a moving block 415 is slidably connected in the protection block 41, the top of the moving block 415 extends downwards to form a first extending block 417, a first spring 416 is welded on one side of the first extending block 417, and the moving block 415 is located at the bottom of the fixed rod 412 and is attached to the bottom of the fixed rod 412.
The fixing bar 412 is withdrawn by taking out the bolt between the fixing bar 412 and the protection block 41, then the ball 413 is placed inside the circular groove 418 on the surface of the fixing bar 412, then the fixing bar 412 is inserted into the receiving groove 414, so that the fixing bar 412 pushes the moving block 415 to move inside the protection block 41, the moving block 415 moves, the first extension block 417 integrally formed with the moving block 415 moves inside the protection block 41 while the first extension block 417 presses the first spring 416, the first spring 416 is transformed from a naturally extended state to a tightly stretched state, and after the fixing bar 412 reaches a proper position, the fixing bar 412 is moved upward, the ball 413 on the surface of the fixed rod 412 passes through the protection block 41, after the fixed rod 412 moves upwards, the moving block 415 is not blocked by the fixed rod 412 and moves to the original position, the moving block 415 supports the fixed rod 412, the fixed rod 412 is prevented from moving downwards, the ball 413 is enabled to be in contact with the inner wall of the well Duan Guanzhu, the original sliding friction is changed into rolling friction, the abrasion of the device is enabled to be smaller, the service life is longer, the ball 413 can be replaced, the whole protection effect of the device is better, the fixed rod 412 is limited by the moving block 415, the ball 413 is prevented from moving under the blocking of a stone block in a well section pipe column, and accordingly the ball 413 is prevented from retracting towards the inside of the protection block 41.
As shown in fig. 1 and 7 to 9, the top of the top block 411 is higher than the top of the ball 413, the right half of the top block 411 has an isosceles triangle shape that is convenient for guiding, an inner ring 33 is rotatably connected to the inside of the body 3, and the inner ring 33 is fixedly connected to the limiting tube 1.
The section shape of the right half part of the top block 411 is isosceles triangle, so that the pushing effect of the top block 411 on the stone is better, when the stone is oversized, both sides of the top block 411 are inclined planes, the stone extrudes the top block 411, the top block 411 is connected with the protection block 41, the protection block 41 is connected with the body 3 through the limiting rod 45, the protection block 41 and the limiting rod 45 are driven to rotate through the movement of the top block 411, the limiting rod 45 is connected with the body 3, and the body 3 and the inner ring 33 rotate, so that the body 3 rotates on the surface of the inner ring 33, and the device is prevented from being damaged due to direct impact of the device with the large stone.
As shown in fig. 1 to 2, the reinforcing mechanism 2 is disposed inside the limiting tube 1, the reinforcing mechanism 2 includes a plurality of squeeze plates 22 slidably connected inside the limiting tube 1, one end of the squeeze plate 22, which is close to the center of the limiting tube 1, is fixedly connected with a rubber block 23, one end of the rubber block 23, which is far away from the squeeze plate 22, passes through the inner wall of the limiting tube 1, the surface of the limiting tube 1 is rotatably connected with a rotating ring 21, a groove 211, which is convenient for the squeeze plate 22 to extend, is formed inside the rotating ring 21, the cross section of the squeeze plate 22 is in a right trapezoid shape, and the rotating ring 21 extrudes the inclined surface of the squeeze plate 22 after rotation.
Through bringing the limiting tube 1 into the inner ring 33 to pass through the sucker rod, then rotating the rotating ring 21, enabling the groove 211 groove side of the rotating ring 21 to extrude the inclined surface of the extruding plate 22, enabling the extruding plate 22 to move inside the limiting tube 1 after being extruded, enabling the extruding plate 22 to extrude the rubber block 23, after the rotating ring 21 is difficult to rotate, fixing the rotating ring 21 and the limiting tube 1 through utilizing bolts, enabling the rubber block 23 to be attached to the sucker rod more, enabling the fixing effect between the limiting tube 1 and the sucker rod to be better, and enabling the material of the rubber block 23 to prevent damage to the sucker rod due to reinforcement, so that the fixing between the device and the sucker rod is firmer.
The using method comprises the following steps: by passing the restrictor tube 1 through the sucker rod with the inner ring 33 and then rotating the swivel ring 21, after the swivel ring 21 is difficult to rotate, the rubber block 23 is made to be more bonded to the sucker rod by fixing between the swivel ring 21 and the restrictor tube 1 by using bolts, by passing the device through the sucker rod, fixing between the device and the sucker rod by using the restrictor tube 1 and then rotating the protective block 41, the movement of the moving member 43, the movement of the connecting rod 42 controls the position of the protective block 41 so that the protective block 41 can move to the outside of the body 3, when the sucker rod and the device move inside the wellbore tubular column, the top block 411 pushes away the stone inside the wellbore tubular column, when the stone block is too large, the stone block is pressed against the top block 411 by both sides of the top block 411, and the top block 411 is connected with the protective block 41, and the protective block 41 is connected with the body 3 by the restricting rod 45, the protective block 41 is rotated with the protective block 41 and the restricting rod 45 by the movement of the top block 411, and the body 3 is rotated with the inner ring 33, and the body 3 is brought into contact with the ball bearing Duan Guanzhu of the surface 413 of the inner ring 33.
The above description is only of the preferred embodiments of the present application; the scope of the application is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present application, and the technical solution and the improvement thereof are all covered by the protection scope of the present application.
Claims (7)
1. The utility model provides an inflation seal centralizer, includes body (3), body (3) are used for supporting the sucker rod, the equal swing joint of both sides of body (3) has limited pipe (1), its characterized in that: an adjusting mechanism (4) is arranged on the surface of the body (3);
the adjusting mechanism (4) is used for supporting the body (3) and controlling the sucker rod in the body (3) to be positioned at the center of the well section pipe column;
the adjusting mechanism (4) comprises a moving part (43) which is in sliding connection with the body (3), one side, close to the limiting pipe (1), of the moving part (43) is rotationally connected with a fixing part (44), connecting rods (42) are rotationally connected around the moving part (43), one end, far away from the moving part (43), of each connecting rod (42) is rotationally connected with a protecting block (41), and a limiting rod (45) is fixedly connected between the bottom of each protecting block (41) and the body (3);
the moving part (43) extends towards the direction of the body (3) close to one side of the body (3) to form a second extending block (431), and the fixing part (44) extends towards the direction of the body (3) close to one side of the body (3) to form a third extending block (441);
a transverse groove (31) for accommodating the transverse movement of the second extension block (431) is formed in the top of the body (3), the rear side groove wall of the transverse groove (31) extends to the rear side to form a plurality of equidistant longitudinal grooves (32), the width of the longitudinal grooves (32) is smaller than that of the second extension block (431), and the width of the longitudinal grooves (32) is the same as that of the third extension block (441);
the movable member (43) extends to the direction of the fixed member (44) to form an extending block (432), an arc groove (442) is formed in the fixed member (44) corresponding to the rotating track of the extending block (432), a second spring (443) is welded in the arc groove (442), and one side, close to the extending block (432), of the second spring (443) is attached to the extending block (432).
2. An inflatable seal centralizer according to claim 1, wherein: the inside both sides of protection piece (41) all are provided with dead lever (412) of detachable connection, right side the right side of dead lever (412) extends and is formed with kicking block (411) that promote interior soil stone piece of well section tubular column, holding tank (414) that hold dead lever (412) removal have been seted up to the inside of protection piece (41).
3. An inflatable seal centralizer according to claim 2, wherein: the surface of dead lever (412) has seted up a plurality of circular grooves (418), ball (413) have been placed to the inside of circular groove (418), the top of ball (413) runs through the top of protection piece (41) and stretches out protection piece (41), protection piece (41) and dead lever (412) restriction ball (413), make ball (413) rotate in the inside of protection piece (41).
4. An inflatable seal centralizer according to claim 1, wherein: the inside sliding connection of protection piece (41) has movable block (415), the top downwardly extending of movable block (415) forms first extension piece (417), one side welding of first extension piece (417) has first spring (416), movable block (415) are in the bottom of dead lever (412) and laminate with the bottom of dead lever (412).
5. An inflatable seal centralizer according to claim 3, wherein: the top of kicking block (411) is higher than the top of ball (413), the cross-sectional shape of the right half of kicking block (411) is the isosceles triangle of the direction of being convenient for, the inside rotation of body (3) is connected with inner ring (33), inner ring (33) and restrictor tube (1) fixed connection.
6. An inflatable seal centralizer according to claim 1, wherein: the inside of limiting pipe (1) is provided with strengthening mechanism (2), strengthening mechanism (2) are including a plurality of sliding connection in inside stripper plate (22) of limiting pipe (1), one end fixedly connected with rubber piece (23) that stripper plate (22) are close to the centre of a circle of limiting pipe (1), the inner wall of limiting pipe (1) is passed to one end that stripper plate (22) was kept away from to rubber piece (23).
7. An inflatable seal centralizer according to claim 6, wherein: the surface rotation of restrictor tube (1) is connected with swivel ring (21), recess (211) that be convenient for stripper plate (22) stretch out are seted up to the inside of swivel ring (21), the cross-sectional shape of stripper plate (22) is right trapezoid, and swivel ring (21) after the rotation extrudees the inclined plane of stripper plate (22).
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| CN202311265855.2A CN116988744B (en) | 2023-09-28 | 2023-09-28 | Expansion sealing centralizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311265855.2A CN116988744B (en) | 2023-09-28 | 2023-09-28 | Expansion sealing centralizer |
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| CN116988744A CN116988744A (en) | 2023-11-03 |
| CN116988744B true CN116988744B (en) | 2023-11-28 |
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| CN117212585B (en) * | 2023-11-09 | 2024-01-26 | 君海管业(山东)有限公司 | High-pressure quick connector for plastic pipe |
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