CN115324498A - Oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function - Google Patents
Oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function Download PDFInfo
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- CN115324498A CN115324498A CN202211099726.6A CN202211099726A CN115324498A CN 115324498 A CN115324498 A CN 115324498A CN 202211099726 A CN202211099726 A CN 202211099726A CN 115324498 A CN115324498 A CN 115324498A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 239000003921 oil Substances 0.000 claims abstract description 78
- 239000010779 crude oil Substances 0.000 claims abstract description 26
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims 3
- 230000009471 action Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- 239000012535 impurity Substances 0.000 description 7
- 238000005086 pumping Methods 0.000 description 7
- 244000309464 bull Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
- 238000003466 welding Methods 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
- E21B17/10—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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of oil exploitation equipment, in particular to a sucker rod centralizer with an anti-deformation position shifting function for oil field production. The technical problem that after long-time work, the pre-tightening force on the sucker rod centralizer is loosened under the buoyancy action of crude oil, so that the sucker rod centralizer moves up and down and shifts is solved. The technical scheme is as follows: the utility model provides an oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function, including first fixed casing, first fixed casing is equipped with two, passes through bolted connection between two first fixed casings, and fixed anti-skidding mechanism is installed to two first fixed casings, is equipped with friction increase mechanism in the fixed anti-skidding mechanism. According to the invention, through the friction increasing mechanism, the friction force between the two first fixing frames and the two second fixing shells and the sucker rod is respectively increased, and the phenomenon that the two first fixing shells move upwards and shift positions to cause the device to move and shift positions and then the device loses the eccentric wear prevention effect on the sucker rod is avoided.
Description
Technical Field
The invention relates to the technical field of oil exploitation equipment, in particular to a sucker rod centralizer with an anti-deformation position shifting function for oil field production.
Background
When the sucker rod or the oil pipe is bent under the influence of certain factors, the sucker rod which moves up and down contacts and rubs with the oil pipe at a bending point, so that most of the sucker rod is worn on one side, namely the sucker rod is eccentrically worn, and after the sucker rod is eccentrically worn for a long time, the eccentric wear increases the accident rate of oil well pipe leakage, sucker rod breaking and the like, increases the maintenance frequency and cost of an oil well, reduces the effective working time of the oil well, and is a common problem of an oil field sucker rod pumping system.
Comparatively common being clamp class sucker rod centralizer among the current sucker rod centralizer, this type of centralizer passes through artifical pretension, make it hold tightly on the sucker rod, can set up the optional position at the sucker rod, nevertheless when sucker rod centralizer is at the during operation in the pit, sucker rod centralizer follows the sucker rod and reciprocates, at the in-process of lapse, sucker rod centralizer receives the buoyancy influence of crude oil, after long-time work, the power of pretension is not hard up under crude oil buoyancy on the sucker rod centralizer, cause sucker rod centralizer to reciprocate the position of scurrying, lead to sucker rod centralizer to lose its original eccentric wear prevention function.
Disclosure of Invention
The invention provides a sucker rod centralizer with an anti-deformation position shifting function for oilfield production, which can increase friction force and aims to solve the technical problem that after long-time work, the pre-tightening force on the sucker rod centralizer is loosened under the buoyancy action of crude oil to cause the sucker rod centralizer to move up and down and shift positions.
The technical scheme of the invention is as follows: the utility model provides an oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function, including first fixed casing, first fixed casing is equipped with two, pass through bolted connection between two first fixed casings, the equal rigid coupling in opposite sides of two first fixed casings has first mount, two first mount cooperations are embraced and are detained on the sucker rod, two first mounts cooperate the vacuole formation with adjacent first fixed casing respectively, the fixed casing of second is equipped with two, two fixed casings of second are located adjacent first fixed casing upside respectively, the lower part cooperation of two fixed casings of second is embraced and is detained on the sucker rod, pass through bolted connection between two fixed casings of second, two fixed casings of second all are provided with the extrusion seam, install fixed anti-skidding mechanism on two fixed casings, fixed anti-skidding mechanism is used for preventing two first fixed casings from shifting position on the sucker rod, fixed anti-skidding mechanism includes the dead lever, the dead lever is equipped with two, two fixed casing downside of first fixed casing that two dead levers all rigid couplings in the rear side, two fixed casing bilateral symmetry sets up two dead levers, two first fixed casing sliding connection spline all are connected with sliding connection shell, two adjacent fixed casing sliding connection have the rotatory spring casing on two fixed casing.
Further, the opposite sides of the inner walls of the two first fixing frames are provided with a plurality of rubber blocks, so that the two first fixing shells connected through bolts are prevented from sliding on the sucker rod.
Further, the outer diameter of the sliding housing is larger than that of the rotary clamping housing, preventing the two first fixing housings connected by the bolts from sliding on the sucker rod.
Further, still be equipped with supporting mechanism on the fixed anti-skidding mechanism, supporting mechanism supports the sucker rod through fixed anti-skidding mechanism, prevent sucker rod and oil pipe eccentric wear, supporting mechanism is including the second mount, the second mount is equipped with a plurality of, a plurality of second mount rigid coupling respectively in adjacent sliding housing lateral surface middle part, the equal sliding connection of a plurality of second mount has first slide bar, the equal rigid coupling of the first slide bar of a plurality of has the arc backup pad, the equal ball-joint of every arc backup pad has a plurality of ball, every second mount all is equipped with the support adjusting part, the support adjusting part is used for adapting to the oil pipe of different internal diameters.
Furthermore, the direction of the plurality of arc-shaped supporting plates is upwards encircled anticlockwise along the axis, so that the crude oil is convenient to guide.
Furthermore, the supporting and adjusting assembly comprises a second spring, the second spring is provided with a plurality of second springs, one end of each second spring is fixedly connected to the adjacent first sliding rod respectively, the other end of each second spring is fixedly connected to the adjacent sliding shell respectively, the second fixing frames are all rotatably connected with first rotating rods, and the first rotating rods are in threaded connection with the adjacent first sliding rods respectively.
Furthermore, a friction increasing mechanism is arranged on the fixed anti-skid mechanism and used for increasing the friction resistance between the fixed anti-skid mechanism and the sucker rod, the fixed anti-skid mechanism is in contact with the friction increasing mechanism, the two second fixed shells apply resistance to the two first fixed shells, and when the buoyancy of crude oil is enough to enable the two first fixed shells to move, the two first fixed shells are prevented from moving and shifting on the sucker rod.
Further, friction increase mechanism is including the pinion rack, pinion rack sliding connection is on the first fixed casing of rear side, the downside and the adjacent sliding housing contact of pinion rack, the rigid coupling has the third spring between the first fixed casing of pinion rack and rear side, the first fixed casing rigid coupling of rear side has the support frame, the support frame rotates and is connected with the worm, the worm is equipped with one-way gear, one-way gear and pinion rack cooperation, the first fixed casing of rear side rotates and is connected with the second bull stick, the middle part rigid coupling of second bull stick has the worm wheel, worm wheel and worm meshing, the upper end rigid coupling of second bull stick has cylindrical gear, the downside rigid coupling of rotatory tight shells inner wall has the ring gear, ring gear and cylindrical gear meshing, two first fixed casings all are equipped with friction increase subassembly, friction increase subassembly is used for increasing the frictional force between two first mounts and the sucker rod.
Further, the friction increase subassembly is including the connecting pipe, the connecting pipe is equipped with two, two connecting pipes inlay respectively on adjacent first fixed casing, two connecting pipes communicate with adjacent cavity respectively, two connecting pipes respectively and adjacent cavity between the circulation have hydraulic oil, the equal sliding connection of two connecting pipes has the second slide bar, the downside of two second slide bars all contacts with adjacent slip casing, two second slide bars respectively and adjacent connecting pipe between the rigid coupling have the extension spring.
As can be appreciated by those skilled in the art, the present invention has at least the following beneficial effects: according to the anti-skidding mechanism, the two first fixed shells are positioned in the adjacent sliding shells, so that the buoyancy of crude oil cannot directly act on the first fixed shells, the buoyancy of the crude oil received by the first fixed shells is reduced, the trend of upward movement of the two sliding shells is delayed by the two first springs, the first fixed shells are limited by the second fixed shells, the upward movement resistance of the two first fixed shells is increased, and the position shifting of the two first fixed shells is avoided; through the supporting mechanism, the sucker rod is supported by utilizing the matching of the second fixing frame, the first rotating rod, the first sliding rod and the arc-shaped supporting plate, the sucker rod is prevented from contacting and rubbing with the oil pipe, the ball is used for contacting and rotating with the oil pipe, the friction resistance of the oil pipe to the device is reduced, the phenomenon that the first fixing shell is shifted due to the friction resistance of the oil pipe to the sliding shell in the process of entering the oil pipe is avoided, the first rotating rod is utilized to drive the arc-shaped supporting plate to move to be in contact with the inner wall of the oil pipe, the device is adaptive to the oil pipes with different inner diameters, and the phenomenon that the oil pipe is damaged due to the fact that the first sliding rod extrudes the oil pipe for a long time under the action of the first spring is avoided; through friction increase mechanism, utilize a plurality of block rubber on the first mount of hydraulic oil extrusion in the second slide bar transmission connecting tube, make the block rubber inflation, increase the frictional force between two first mounts and the sucker rod, press from both sides two fixed casings of second through pinion rack transmission rotary clamping casing extrusion, increase the area of contact between two fixed casings of second and the sucker rod, increase the frictional force between two fixed casings of second and the sucker rod, utilize one-way gear to be clockwise pivoted gear under the primary view, make rotary clamping casing can not reset, avoid two fixed casings rebound of first casing to scurry the position, cause this device to remove the position, lead to this device to lose the eccentric wear prevention effect to the sucker rod.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the fixing anti-slip mechanism of the present invention.
Fig. 3 is a schematic perspective view of a first spring of the anti-slip mechanism according to the present invention.
Fig. 4 is a schematic perspective view of the supporting mechanism of the present invention.
Fig. 5 is a schematic perspective view of the balls of the support mechanism of the present invention.
Fig. 6 is an enlarged perspective view of the present invention at a.
Fig. 7 is a perspective view of the friction increasing mechanism of the present invention.
Fig. 8 is a perspective view of a third spring of the friction increasing mechanism of the present invention.
Fig. 9 is a schematic perspective view of a worm of the friction increasing mechanism of the present invention.
Fig. 10 is a schematic perspective view of a tension spring of the friction increasing mechanism of the present invention.
In the figure: 101-a sucker rod, 201-a first fixed housing, 2011-a first fixed frame, 2012-a cavity, 202-a fixed rod, 203-a sliding housing, 204-a first spring, 205-a second fixed housing, 2051-an extrusion slot, 206-a rotary clamping housing, 301-a second fixed frame, 302-a first sliding rod, 303-an arc-shaped supporting plate, 3031-a ball, 304-a second spring, 305-a first rotating rod, 401-a toothed plate, 402-a third spring, 403-a supporting frame, 404-a worm, 405-a one-way gear, 406-a second rotating rod, 407-a worm gear, 408-a cylindrical gear, 409-a gear ring, 410-a connecting pipe, 411-a second sliding rod and 412-a tension spring.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.
Example 1
A sucker rod centralizer with an anti-deformation shifting function for oil field production is disclosed, as shown in figures 1-10, and comprises two first fixed shells 201, wherein the two first fixed shells 201 are connected through bolts, first fixed brackets 2011 are welded on opposite sides of the two first fixed shells 201, the two first fixed brackets 2011 are matched and buckled on a sucker rod 101 in a clasping manner, the two first fixed brackets 2011 are respectively matched with the adjacent first fixed shells 201 to form a cavity 2012, a plurality of rubber blocks are arranged on opposite sides of the inner walls of the two first fixed brackets 2011 to prevent the two first fixed shells 201 connected through bolts from sliding on the sucker rod 101, two second fixed shells 205 are arranged, the two second fixed shells 205 are respectively positioned on the upper sides of the adjacent first fixed shells 201, the lower parts of the two second fixed shells 205 are matched and buckled on the sucker rod 101, the two second fixed shells 205 are connected through bolts, the two second fixed shells 205 are both provided with extrusion seams 2051, the two first fixed shells 201 are provided with fixed anti-skid mechanisms, the fixed anti-skid mechanisms are used for preventing the two first fixed shells 201 from moving and shifting on the sucker rod 101, the fixed anti-skid mechanisms are provided with supporting mechanisms, the supporting mechanisms support the sucker rod 101 through the fixed anti-skid mechanisms, the sucker rod 101 is prevented from eccentric wear with an oil pipe, the fixed anti-skid mechanisms are matched with the supporting mechanisms, the sucker rod 101 is prevented from contacting with the inner wall of the oil pipe, the fixed anti-skid mechanisms are provided with friction increasing mechanisms, the friction increasing mechanisms are used for increasing the friction resistance between the fixed anti-skid mechanisms and the sucker rod 101, the fixed anti-skid mechanisms are contacted with the friction increasing mechanisms, the two second fixed shells 205 apply resistance to the two first fixed shells 201, when the buoyancy of crude oil is enough to enable the two first fixed shells 201 to move, prevent that two first fixed casings 201 from moving the position of scurrying on sucker rod 101, fixed anti-skidding mechanism, supporting mechanism and friction increase mechanism cooperation avoid sucker rod 101 and oil pipe inner wall contact, prevent sucker rod 101 eccentric wear, avoid this device to scurrying when sucker rod 101 rebound simultaneously.
When transferring sucker rod 101 to oil pipe, the staff embraces two first fixed casings 201 and detains on sucker rod 101, and fix through the bolt, the staff embraces two fixed casings 205 of second and detains on sucker rod 101, and fix through the bolt, and the downside of two fixed casings 205 of second, side contact on the first fixed casing 201 adjacent respectively, the staff embraces fixed anti-skidding mechanism and detains on first fixed casing 201, and adjust supporting mechanism, when the distance at supporting mechanism both ends equals oil pipe's internal diameter, make this device adapt to the oil pipe of different internal diameters, after the regulation is accomplished, the staff transfers this device to in the oil pipe.
When oil is extracted, the beam pumping unit drives the pumping rod 101 to reciprocate up and down through the polish rod to pump oil, under the action of the rotator, the pumping rod 101 rotates up and down in a reciprocating manner, and the pumping rod 101 drives the device to reciprocate up and down and rotate left and right in the pumping process.
In the above-mentioned in-process, when sucker rod 101 drove this device downshifting, under the buoyancy of crude oil when this device downshifting, fixed anti-skidding mechanism work avoids this device to remove under the long-time effect of crude oil buoyancy, causes this device to lose the effect of rightting to prevent eccentric wear sucker rod 101.
In the process, the fixed anti-skid mechanism drives the friction increasing mechanism to work, the friction increasing mechanism works to increase the frictional resistance between the fixed anti-skid mechanism and the sucker rod 101, and the fixed anti-skid mechanism is prevented from moving and losing position, so that the device loses the functions of righting and eccentric wear prevention on the sucker rod 101.
In the process, the supporting mechanism works to prevent the sucker rod 101 from contacting and rubbing with the oil pipe, damage to the oil pipe is reduced, and when the supporting mechanism moves downwards and rotates along with the sucker rod 101, crude oil below the supporting mechanism is stirred by the rotation of the supporting mechanism, so that buoyancy of the crude oil to the fixed anti-skid mechanism is reduced, and resistance to the fixed anti-skid mechanism is reduced.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and fig. 3, the fixed anti-slip mechanism includes two fixing rods 202, the two fixing rods 202 are welded to the lower side of the rear first fixed housing 201, the two fixing rods 202 are arranged in bilateral symmetry, the two first fixed housings 201 are spline-connected to the sliding housings 203, the two sliding housings 203 are slidably connected to the two fixing rods 202, the two sliding housings 203 are connected to the adjacent sliding housings 203 by bolts, the two first springs 204 are fixedly connected between the rear sliding housing 203 and the adjacent first fixed housing 201, the two first springs 204 are respectively sleeved on the adjacent fixing rods 202, the first fixed housing 201 is located inside the adjacent sliding housing 203, so that the buoyancy of crude oil is not directly acted on the first fixed housing 201, the buoyancy of crude oil received by the first fixed housing 201 is reduced, the first fixed housing 201 is prevented from shifting, the two second fixed housings 205 are threadedly connected to the rotary clamping housing 206, the outer diameter of the sliding housing 203 is larger than the outer diameter of the rotary clamping housing 206, the two first fixed housings 201 connected by bolts are prevented from sliding on the 101, the two fixed housings 201 are fixed housings 201, and the two housings are prevented from moving upwards by the two fixed housings 201, and the two housings 201, and the fixed housings 201 are prevented from shifting by the two housings 201.
As shown in fig. 4-6, the supporting mechanism includes a second fixing frame 301, the second fixing frame 301 is four, four second fixing frames 301 are welded at the middle of the outer side surface of the adjacent sliding shell 203 respectively, four second fixing frames 301 are connected with first sliding rods 302 in a sliding manner, arc-shaped supporting plates 303 are welded on four first sliding rods 302, the directions of the four arc-shaped supporting plates 303 all face upwards in a counterclockwise surrounding manner along the axis, crude oil guiding is facilitated, each arc-shaped supporting plate 303 is provided with a plurality of balls 3031 in a ball-to-ball manner, the four second fixing frames 301, four first rotating rods 305, four first sliding rods 302 and four arc-shaped supporting plates 303 are matched, the sucker rod 101 is supported, contact and friction between the sucker rod 101 and the oil pipe are avoided, the sucker rod contacts and rotates with the oil pipe through the balls 3031, friction resistance of the oil pipe to the device is reduced, in the process of entering the oil pipe is avoided, the first fixing frame 201 is caused by the friction resistance of the oil pipe to the sliding shell 203, a support adjusting assembly is arranged on each second fixing frame 301, and the support adjusting assembly is used for adapting to oil pipes with different inner diameters.
As shown in fig. 4-6, the support adjusting assembly includes two springs 304, there are four second springs 304, one end of each of the four second springs 304 is respectively and fixedly connected to the adjacent first sliding rod 302, the other end of each of the four second springs 304 is respectively and fixedly connected to the adjacent sliding housing 203, each of the four second fixing frames 301 is rotatably connected to a first rotating rod 305, each of the four first rotating rods 305 is respectively and threadedly connected to the adjacent first sliding rod 302, the arc-shaped support plate 303 is driven by the first rotating rods 305 to move to contact with the inner wall of the oil pipe, so that the device is adapted to oil pipes with different inner diameters, and the four first sliding rods 302 are prevented from respectively impacting the oil pipe 303 under the action of the adjacent first springs 204 for a long time, so that the oil pipe is damaged, the ball 3031 is driven by the arc-shaped support plate to move, so that the ball 3031 does not make hard collision with impurities adhered to the inner wall of the oil pipe, so that the device is prevented from shifting under the obstruction of the impurities adhered to the inner wall of the oil pipe, and the ball 3031 is prevented from being hit the inner wall of the oil pipe in the resetting process, and the inner wall of the oil pipe is prevented from being damaged by the hard collision of the second fixing frame 301.
As shown in fig. 7-10, the friction increasing mechanism includes a toothed plate 401, the toothed plate 401 is slidably connected to the first fixing housing 201 at the rear side, the lower side surface of the toothed plate 401 contacts with the adjacent sliding housing 203, a third spring 402 is fixedly connected between the toothed plate 401 and the first fixing housing 201 at the rear side, a support frame 403 is welded to the first fixing housing 201 at the rear side, the support frame 403 is rotatably connected with a worm 404, the worm 404 is provided with a one-way gear 405, the one-way gear 405 is a gear that rotates clockwise in a front view, the one-way gear 405 is matched with the toothed plate 401, the first fixing housing 201 at the rear side is rotatably connected with a second rotating rod 406, a worm wheel 407 is fixedly connected to the middle of the second rotating rod 406, the worm wheel 407 is engaged with the worm 404, a cylindrical gear 408 is keyed on the upper end of the second rotating rod 406, the downside welding of rotary clamping casing 206 inner wall has ring gear 409, ring gear 409 and the meshing of cylindrical gear 408, clamp casing 206 extrusion two fixed casings of second 205 through pinion rack 401 transmission rotation, increase the area of contact between two fixed casings of second 205 and the sucker rod 101, increase the frictional force between two fixed casings of second 205 and the sucker rod 101, be clockwise pivoted gear under the primary view through one-way gear 405, make rotary clamping casing 206 can not reset, avoid two first fixed casings 201 rebound scutching, cause this device to remove the scutching, lead to this device to lose the anti-eccentric effect to sucker rod 101, all be equipped with the increase of friction subassembly on two first fixed casings 201, the increase of friction subassembly is used for increasing the frictional force between two first mounts 2011 and the sucker rod 101.
As shown in fig. 7 to 10, the friction increasing assembly includes two connecting pipes 410, two connecting pipes 410 are provided, two connecting pipes 410 are respectively embedded on the adjacent first fixing housings 201, two connecting pipes 410 are respectively communicated with the adjacent cavities 2012, hydraulic oil circulates between the two connecting pipes 410 and the adjacent cavities 2012, the two connecting pipes 410 are respectively connected with the second sliding rods 411 in a sliding manner, the lower sides of the two second sliding rods 411 are respectively contacted with the adjacent sliding housings 203, tension springs 412 are fixedly connected between the two second sliding rods 411 and the adjacent connecting pipes 410, the hydraulic oil in the connecting pipes 410 is driven by the second sliding rods 411 to squeeze a plurality of rubber blocks on the first fixing frames 2011, so that the rubber blocks expand, the friction force between the two first fixing frames 2011 and the sucker rod 101 is increased, and the two first fixing housings 201 are prevented from moving and shifting.
At the production factory, four second fixing brackets 301 have been mounted on the adjacent slide housings 203, respectively.
When the sucker rod 101 is lowered to an oil pipe, a worker embraces and buckles the two first fixed shells 201 on the sucker rod 101 and fixes the two first fixed shells 201 through bolts, the worker installs the two sliding shells 203 on the adjacent first fixed shells 201 and fixes the two sliding shells through the bolts, the worker embraces and buckles the two second fixed shells 205 on the sucker rod 101 and fixes the two sliding shells through the bolts, the lower side surfaces of the two second fixed shells 205 are respectively in side contact with the upper side surfaces of the adjacent first fixed shells 201, the worker sleeves the rotary clamping shell 206 on the two second fixed shells 205 and rotates the rotary clamping shell 206 to pre-tighten the two second fixed shells 205, the two first fixed shells 201 are limited through the two second fixed shells 205, the upward movement resistance of the two first fixed shells 201 is increased, and the two first fixed shells 201 are prevented from shifting.
After the installation is completed, the staff rotates four first rotating rods 305 respectively, the four first rotating rods 305 rotate to drive the adjacent first sliding rods 302 to move respectively, the four first sliding rods 302 drive the adjacent arc-shaped supporting plates 303 to move respectively, the four first sliding rods 302 move to extrude the adjacent first springs 204 respectively, the four first springs 204 are extruded to generate opposite acting forces respectively, until the four arc-shaped supporting plates 303 move to contact with the inner wall of the oil pipe, the staff stops rotating the four first rotating rods 305, the oil pipe device is suitable for oil pipes with different inner diameters, and the four first sliding rods 302 are prevented from extruding the oil pipe for a long time under the action of the adjacent first springs 204 respectively, so that the oil pipe is damaged.
After the work is finished, the worker puts the device down into the oil pipe until all the sucker rods 101 are put down into the oil pipe.
In the above process, through two first fixed casings 201, two sliding casings 203, four second fixed frames 301, four first rotating rods 305, four first sliding rods 302 and four arc-shaped supporting plates 303 cooperate, the sucker rod 101 is supported, the sucker rod 101 is prevented from contacting and rubbing with the oil pipe, and in the process, a plurality of balls 3031 on the four arc-shaped supporting plates 303 contact and rotate with the oil pipe, the friction resistance of the oil pipe to the device is reduced, the device is prevented from entering the oil pipe, and the friction resistance of the oil pipe to the sliding casings 203 causes the shifting of the first fixed casings 201.
In the above-mentioned process, when the impurity of adhesion touched on a plurality of ball 3031 on certain arc backup pad 303 and the oil pipe inner wall, arc backup pad 303 drove adjacent first bull stick 305 through adjacent first slide bar 302 and moves, first slide bar 302 removes the adjacent second spring 304 of extrusion, second spring 304 receives the extrusion and produces reverse effort, make ball 3031 not with the impurity of adhesion on the oil pipe inner wall and take place rigid collision, avoid leading to this device position shifting under the impurity of adhesion hinders on the oil pipe inner wall, avoid ball 3031 and the impurity of adhesion on the oil pipe inner wall to take place rigid collision simultaneously, cause oil pipe to receive the damage.
After the ball 3031 passes through the impurity adhered to the inner wall of the oil pipe, under the action of the second spring 304, the first sliding rod 302 moves to reset, the first sliding rod 302 drives the adjacent first rotating rod 305 and the adjacent arc-shaped supporting plate 303 to reset, and under the limiting action of the second fixing frame 301, the ball 3031 cannot hit the inner wall of the oil pipe in the resetting process, so that the inner wall of the oil pipe is prevented from being damaged.
When oil recovery, beam-pumping unit passes through the polished rod and drives sucker rod 101 and reciprocate, and at this in-process, sucker rod 101 is rotatory under the effect of circulator, when sucker rod 101 downstream, because two first fixed casings 201 are located the inside of adjacent slip casing 203, crude oil's buoyancy can not direct action on first fixed casing 201, reduce the crude oil buoyancy that first fixed casing 201 received, avoid first fixed casing 201 to scurry the position, two slip casings 203 rebound under the effect of crude oil buoyancy, two first springs 204 of two slip casings 203 rebound extrusion, two first springs 204 receive the extrusion and produce reverse effort, delay the trend of two slip casings 203 rebound.
In the above-mentioned process, two slip casings 203 drive adjacent second slide bar 411 rebound respectively, two second slide bar 411 rebound extrude hydraulic oil in the adjacent connecting pipe 410 respectively, and tensile adjacent extension spring 412, two extension springs 412 receive tensile reverse effort that produces, hydraulic oil in two connecting pipes 410 receives the extrusion back, extrude a plurality of rubber block on the adjacent first mount 2011 respectively, the rubber block receives extrusion inflation, increase the frictional force between two first mounts 2011 and the sucker rod 101, avoid two first fixed casings 201 to remove the position of shifting.
In the process, the sliding housing 203 on the rear side drives the toothed plate 401 to move upwards, the toothed plate 401 moves upwards to extrude the third spring 402, the third spring 402 is extruded to generate reverse acting force, at the moment, the two first fixed housings 201 are not enough to move due to the buoyancy of crude oil acting on the two sliding housings 203, and therefore the toothed plate 401 is not meshed with the one-way gear 405.
In the process, the sucker rod 101 drives the arc-shaped supporting plate 303 to rotate and stir crude oil in the oil pipe through the first fixed shell 201, the sliding shell 203, the second fixed frame 301 and the first sliding rod 302 under the action of the rotator, so that the resistance of the crude oil to the sliding shell 203 is reduced.
Example 3
On the basis of embodiment 2, when the buoyancy of crude oil acting on the two sliding housings 203 is enough to move the two first fixed housings 201, the sliding housing 203 on the rear side drives the toothed plate 401 to move upwards to be meshed with the one-way gear 405, the toothed plate 401 moves upwards to drive the adjacent one-way gear 405 to rotate clockwise, because the one-way gear 405 is a gear rotating clockwise in a front view, the one-way gear 405 drives the worm 404 to rotate, the worm 404 drives the ring gear 409 to rotate through the worm wheel 407, the second rotating rod 406 and the cylindrical gear 408, the ring gear 409 rotates to drive the rotary clamping housing 206 to rotate, the rotary clamping housing 206 rotates to move downwards under the action of the threads on the two second fixed housings 205, and because the upper parts of the two second fixed housings 205 buckled together are in a circular truncated cone shape, the rotary clamping housing 206 presses the two second fixed housings 205, the contact area between the two second fixed housings 205 and the sucker rod 101 is increased, the friction force between the two second fixed housings 205 and the sucker rod 101 is increased, and the two first fixed housings 201 are prevented from moving upwards to cause shifting and shifting of the device to lose the anti-abrasion effect on the sucker rod 101.
When the buoyancy of crude oil effect at two slip casings 203 resumes to being not enough to make two first fixed casings 201 remove, under the effect of third spring 402, pinion rack 401 moves down and drives one-way gear 405 anticlockwise rotation, because one-way gear 405 is clockwise pivoted gear under the primary view, one-way gear 405 can not drive worm 404 anticlockwise rotation, consequently rotatory clamping housing 206 can not reset, avoid rotatory clamping housing 206 to reset the back, two first fixed casings 201 shift up, cause this device to move the position of shifting.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A sucker rod centralizer with an anti-deformation shifting function for oil field production comprises two first fixed shells (201), wherein the two first fixed shells (201) are fixedly connected with each other through bolts, and is characterized in that two first fixed frames (2011) are fixedly connected with opposite sides of the two first fixed shells (201), the two first fixed frames (2011) are fittingly buckled on a sucker rod (101), the two first fixed frames (2011) are respectively matched with the adjacent first fixed shells (201) to form a cavity (2012), the two second fixed shells (205) are arranged, the two second fixed shells (205) are respectively positioned on the upper sides of the adjacent first fixed shells (201), the lower parts of two second fixed shells (205) are matched and clasped on the sucker rod (101), the two second fixed shells (205) are connected through bolts, extrusion seams (2051) are arranged on the two second fixed shells (205), fixed anti-skid mechanisms are arranged on the two first fixed shells (201), the fixed anti-skid mechanisms are used for preventing the two first fixed shells (201) from moving and shifting on the sucker rod (101), each fixed anti-skid mechanism comprises two fixed rods (202), the two fixed rods (202) are fixedly connected to the lower side surface of the first fixed shell (201) on the rear side, the two fixed rods (202) are symmetrically arranged on the left and right, and the two first fixed shells (201) are in splined connection with a sliding shell (203), two slip casings (203) all with two dead lever (202) sliding connection, pass through bolted connection between two slip casings (203), the rigid coupling has two first springs (204) between the slip casing (203) of rear side and adjacent first fixed casing (201), two first springs (204) overlap respectively locate on adjacent dead lever (202), threaded connection has rotary clamping casing (206) on two fixed casings of second (205).
2. The sucker rod centralizer with the deformation and position shifting preventing function for the oil field production as claimed in claim 1 is characterized in that a plurality of rubber blocks are arranged on the opposite sides of the inner walls of the two first fixing frames (2011) to prevent the two first fixing shells (201) which are connected through bolts from sliding on the sucker rod (101).
3. The sucker rod centralizer with the deformation and position shifting preventing function for the oilfield production as recited in claim 1, wherein the sliding housing (203) has an outer diameter larger than that of the rotary clamping housing (206), so that two first fixed housings (201) connected by bolts are prevented from sliding on the sucker rod (101).
4. The sucker rod centralizer with the deformation and position shifting prevention function for the oil field production according to claim 1 is characterized in that a supporting mechanism is further arranged on the fixed anti-slip mechanism, the supporting mechanism supports the sucker rod (101) through the fixed anti-slip mechanism, eccentric wear of the sucker rod (101) and an oil pipe is prevented, the supporting mechanism comprises a second fixing frame (301), a plurality of second fixing frames (301) are fixedly connected to the middle of the outer side face of the adjacent sliding shell (203) respectively, a plurality of second fixing frames (301) are connected with first sliding rods (302) in a sliding mode, a plurality of first sliding rods (302) are fixedly connected with arc-shaped supporting plates (303), a plurality of balls (3031) are arranged on each arc-shaped supporting plate (303) in a ball-to-joint mode, a supporting and adjusting assembly is arranged on each second fixing frame (301) and is used for adapting to oil pipes with different inner diameters.
5. The sucker rod centralizer with the deformation and displacement preventing function for the oil field production as claimed in claim 4 is characterized in that the plurality of arc-shaped supporting plates (303) are arranged in the direction of anticlockwise surrounding along the axis, so that crude oil can be guided conveniently.
6. The sucker rod centralizer with the deformation and displacement preventing function for the oilfield production as recited in claim 5, wherein the supporting and adjusting assembly comprises a plurality of second springs (304), one end of each of the plurality of second springs (304) is fixedly connected to the adjacent first sliding rod (302), the other end of each of the plurality of second springs (304) is fixedly connected to the adjacent sliding housing (203), the plurality of second fixing frames (301) are rotatably connected with the first rotating rods (305), and the plurality of first rotating rods (305) are respectively in threaded connection with the adjacent first sliding rods (302).
7. The sucker rod centralizer with the deformation and displacement preventing function for the oilfield production as recited in claim 5, characterized in that the fixed anti-slip mechanism is provided with a friction increasing mechanism for increasing the frictional resistance between the fixed anti-slip mechanism and the sucker rod (101), the fixed anti-slip mechanism contacts with the friction increasing mechanism, and two second fixed housings (205) apply resistance to the two first fixed housings (201) to prevent the two first fixed housings (201) from moving and displacing on the sucker rod (101) when the buoyancy of crude oil is enough to move the two first fixed housings (201).
8. The sucker rod centralizer with the deformation and position shifting prevention function for the oil field production according to claim 7 is characterized in that the friction increasing mechanism comprises a toothed plate (401), the toothed plate (401) is connected to a first fixed shell (201) on the rear side in a sliding mode, the lower side face of the toothed plate (401) is in contact with an adjacent sliding shell (203), a third spring (402) is fixedly connected between the toothed plate (401) and the first fixed shell (201) on the rear side, a supporting frame (403) is fixedly connected to the first fixed shell (201) on the rear side, the supporting frame (403) is rotatably connected with a worm (404), the worm (404) is provided with a one-way gear (405), the one-way gear (405) is matched with the toothed plate (401), a second rotating rod (406) is rotatably connected to the first fixed shell (201) on the rear side, a worm wheel (407) is arranged in the middle of the second rotating rod (406), the worm wheel (407) is meshed with the worm (404), a cylindrical gear (408) is fixedly connected to the upper end of the second rotating rod (406), a lower side of an inner wall of a rotary clamping shell (206), a fixed gear (2011) is fixedly connected with two friction increasing components (409) which are arranged between the first fixed rack (409) and a friction increasing component.
9. The sucker rod centralizer with the deformation and position shifting preventing function for the oil field production as claimed in claim 8, wherein the friction increasing assembly comprises two connecting pipes (410), the two connecting pipes (410) are respectively embedded in the adjacent first fixed shell (201), the two connecting pipes (410) are respectively communicated with the adjacent cavities (2012), hydraulic oil flows between the two connecting pipes (410) and the adjacent cavities (2012), the two connecting pipes (410) are both slidably connected with second sliding rods (411), the lower side surfaces of the two second sliding rods (411) are both in contact with the adjacent sliding shell (203), and tension springs (412) are fixedly connected between the two second sliding rods (411) and the adjacent connecting pipes (410).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211099726.6A CN115324498B (en) | 2022-09-09 | 2022-09-09 | Sucker rod centralizer with deformation and position channeling preventing function for oilfield production |
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| CN202211099726.6A CN115324498B (en) | 2022-09-09 | 2022-09-09 | Sucker rod centralizer with deformation and position channeling preventing function for oilfield production |
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| CN216077012U (en) * | 2021-10-12 | 2022-03-18 | 吉林市圣赢碳纤维制品科技有限公司 | Sucker rod centralizer suitable for oil well operation |
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| US5097905A (en) * | 1991-01-28 | 1992-03-24 | Mobil Oil Corporation | Centralizer for well casing |
| CN201106413Y (en) * | 2007-10-23 | 2008-08-27 | 刘中青 | Liner breakdown elastic locating centralizer |
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