CN210977334U - Polish rod scratch preventer and polish rod scratch preventer - Google Patents
Polish rod scratch preventer and polish rod scratch preventer Download PDFInfo
- Publication number
- CN210977334U CN210977334U CN201921390906.3U CN201921390906U CN210977334U CN 210977334 U CN210977334 U CN 210977334U CN 201921390906 U CN201921390906 U CN 201921390906U CN 210977334 U CN210977334 U CN 210977334U
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- polished rod
- hole
- polish rod
- sleeve body
- rod
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- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims description 8
- 238000007790 scraping Methods 0.000 abstract description 18
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000003129 oil well Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a device is prevented scraping by polished rod and polished rod, the polished rod is prevented scraping the ware and is included: the sleeve body is internally provided with a through hole which is axially communicated and is used for the light rod to pass through, the side wall of the sleeve body is provided with a notch which is axially communicated and used for the light rod to enter the through hole, the hole wall of the through hole is a smooth arc surface, and the joint of the hole wall of the through hole and the end surfaces of the two ends of the sleeve body is in smooth transition; the polish rod scratch-proof device comprises a wellhead four-way and a polish rod scratch-proof device, and a sleeve body of the polish rod scratch-proof device extends into the wellhead four-way. The utility model discloses a polished rod scraper's the cover body is kept apart polished rod and well head cross, because the internal face of the cover body is glossy arc surface, and the internal face of the cover body and the smooth transition of meeting department of the cover body both ends terminal surface, when reciprocating the polished rod, the polished rod scraper's the cover body can not scrape the polished rod surface, plays the guard action to the polished rod, has prolonged the life of polished rod.
Description
Technical Field
The utility model belongs to the technical field of the oil recovery technique and specifically relates to a polished rod scraper and polished rod scraping prevention device.
Background
The electric heating well usually adopts a hollow polished rod with the diameter of 36mm, the hollow polished rod penetrates through a small four-way of a well mouth, the cross-sectional area of the small four-way of the well mouth occupied by the hollow polished rod is larger, a polished rod sealer is usually loosened in daily constructions of pump collision, cylinder release, unfreezing and the like, the polished rod is hung by a crane to move up and down, and the small four-way of the well mouth can not be ensured to be vertical to the small four-way of the well mouth in the descending process due to the large size of a pulley of the crane, so that the surface of the polished rod is.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device is prevented scraping by polished rod scraper and polished rod to solve the problem on well head cross scraping polished rod surface.
In order to achieve the above object, the utility model provides a polished rod scraper, it includes: the sleeve body is internally provided with a through hole which is axially communicated and is used for the polished rod to pass through, the side wall of the sleeve body is provided with a notch which is axially communicated and is used for the polished rod to enter the through hole, the hole wall of the through hole is a smooth arc surface, and the joint of the hole wall of the through hole and the end surfaces of the two ends of the sleeve body is in smooth transition.
The polished rod scratch preventer as described above, wherein the through hole includes a cylindrical hole and a tapered hole located above the cylindrical hole, the tapered hole extends upward from the cylindrical hole to the upper end face of the sleeve body, the inner diameter of the tapered hole gradually expands from bottom to top, and a junction between a hole wall of the tapered hole and a hole wall of the cylindrical hole is in smooth transition.
The polish rod scraper is characterized in that the joint of the side wall of the gap and the wall of the through hole is in smooth transition.
The polished rod scratch preventer as described above, wherein the outer sidewall of the upper end of the sleeve body is provided with an annular flange protruding radially outward, the flange can be seated on the end surface of the wellhead cross, and the opening axially penetrates through the flange.
The polish rod scratch preventer as described above, wherein the polish rod scratch preventer further comprises a U-shaped handle, the handle is located outside the sleeve body, and both ends of the handle are fixedly connected with the flanges.
The polished rod scratch preventer as described above, wherein the hardness of the jacket body is less than the hardness of the polished rod.
The utility model also provides a device is prevented scraping by the polished rod, wherein, the polished rod is prevented scraping the device and is included well head cross and foretell polished rod scraper, the cover body of polished rod scraper is prevented stretching into inside the well head cross.
The polished rod scratch-proof device is characterized in that an annular flange which protrudes outwards in the radial direction is arranged on the outer side wall of the upper end of the sleeve body, the flange is located on the upper end face of the wellhead four-way, and the sleeve body is hung inside the wellhead four-way through the flange.
The polished rod scratch-resistant device is characterized in that the outer diameter of the flange is larger than the inner diameter of the wellhead four-way, the outer diameter of the sleeve body is smaller than the inner diameter of the wellhead four-way, and the inner diameter of the sleeve body is larger than the outer diameter of the polished rod.
The polished rod scratch-resistant device is characterized in that the sleeve body isolates each right angle in the wellhead four-way from the polished rod.
The utility model discloses a device is prevented scraping by polished rod scraper and polished rod is prevented scraping's characteristics and advantage are:
1. the utility model discloses a polished rod scraper and polished rod scraper-proof device, during the use, with the cover body cover outside the polished rod to stretch into the well head cross in, so the cover body keeps apart polished rod and well head cross, because the internal face of the cover body be smooth arc surface, and the internal face of the cover body and the smooth transition of the meeting department of cover body both ends terminal surface, when reciprocating the polished rod, the cover body of polished rod scraper-proof device can not scrape the polished rod surface, plays the guard action to the polished rod, has prolonged the life of polished rod, has reduced the maintenance and the replacement cost of polished rod, has reduced the manufacturing cost of oil well; in addition, the polished rod scraper can protect the polished rod, so that the moving speed can be increased when the polished rod moves up and down, and the working efficiency of daily constructions such as pump collision, cylinder release, stuck release and the like is improved;
2. the utility model discloses a device is prevented scraping by polished rod scraper and polished rod, simple structure, convenient to use, the processing preparation of being convenient for, it is with low costs.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic view of an embodiment of the polish rod scraper of the present invention.
Main element number description:
1. a sleeve body; 11. perforating; 111. a cylindrical bore; 112. a tapered hole; 12. opening the gap;
2. a flange; 3. a handle.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "horizontal" and "vertical," "upper" and "lower," "top" and "bottom," "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms.
As shown in fig. 1, the utility model provides a polished rod scraper for install protection polished rod in the well head cross, for example this polished rod is hollow polished rod, and the polished rod scraper is including the cover body 1, and the interior perforation 11 that supplies the polished rod to pass that has the axial to link up that has in the cover body 1 is equipped with the opening 12 that supplies the polished rod that the axial link up to get into in the perforation 11 on the lateral wall of the cover body 1, and the pore wall of perforation 11 is glossy arc surface, and the pore wall of perforation 11 and the smooth transition of meeting department of the both ends terminal surface of the cover body 1.
When in installation, the opening 12 of the polish rod scratch preventer is aligned with the side wall of the polish rod, the polish rod scratch preventer is moved along the radial direction of the polish rod until the polish rod enters the perforation 11 in the sleeve body 1 through the opening 12, then the sleeve body 1 of the polish rod scratch preventer and the polish rod are inserted into the wellhead four-way joint together, and the sleeve body 1 of the polish rod scraper is fixed in the wellhead four-way, at the moment, the sleeve body 1 of the polish rod scraper is positioned between the polish rod and the wellhead four-way, so that the polish rod is prevented from contacting the wellhead four-way, because the inner wall surface of the sleeve body 1 of the polished rod scratch preventer is a smooth arc surface and the joint of the inner wall surface of the sleeve body 1 and the end surfaces of the two ends of the sleeve body 1 is in smooth transition, the sleeve body 1 of the polished rod scratch preventer can not scratch the surface of the polished rod when the polished rod moves up and down, the polished rod is protected, the service life of the polished rod is prolonged, the maintenance and replacement cost of the polished rod is reduced, and the production cost of an oil well is reduced;
in addition, the polished rod scraper can protect the polished rod, so that the moving speed can be increased when the polished rod moves up and down, and the working efficiency of daily constructions such as pump collision, cylinder release, stuck release and the like is improved.
Specifically, the inner wall of the sleeve body 1 of the polished rod scratch preventer is polished, and the surface is smooth and has no edges and corners.
In one embodiment, the jacket body 1 has a hardness less than that of the polished rod, for example, the jacket body 1 is made of copper material to reduce damage to the polished rod when they are rubbed against each other.
As shown in fig. 1, in one embodiment, the through hole 11 includes a cylindrical hole 111 and a tapered hole 112 located above the cylindrical hole 111, the tapered hole 112 extends upward from the cylindrical hole 111 to the upper end surface of the jacket body 1, the inner diameter of the tapered hole 112 is gradually enlarged from bottom to top, and the junction between the wall of the tapered hole 112 and the wall of the cylindrical hole 111 is in smooth transition.
In the embodiment, the tapered hole 112 is arranged, and the joint between the hole wall of the tapered hole 112 and the hole wall of the cylindrical hole 111 is designed to be in smooth transition, so that the polished rod can be prevented from contacting with the upper end part of the sleeve body 1, and the polished rod is better protected.
Specifically, the junction between the top end of the hole wall of the tapered hole 112 and the end surface of the top end of the sleeve body 1 is in smooth transition, and the junction between the bottom end of the hole wall of the cylindrical hole 111 and the end surface of the bottom end of the sleeve body 1 is in smooth transition.
In this embodiment, the through hole 11 may be designed as a structure in which two sections of tapered holes and one section of cylindrical hole are connected, the two sections of tapered holes are respectively located above and below the cylindrical hole, the inner diameter of the tapered hole located below the cylindrical hole gradually expands from top to bottom, and the connection between the hole wall and the cylindrical hole is in smooth transition, so that the polished rod is prevented from contacting the lower end of the sleeve body 1, and the protection effect on the polished rod is further increased.
Furthermore, the joint of the side wall of the notch 12 and the hole wall of the through hole 11 is smoothly transited, so that even if the polish rod is deviated to the notch 12, the polish rod cannot be scratched by the edge of the notch 12.
In one embodiment, as shown in fig. 1, an annular flange 2 protruding radially outwards is provided on the outer side wall of the upper end of the sleeve body 1, the flange 2 can be seated on the end surface of the wellhead four-way, and a gap 12 axially penetrates through the flange 2, that is, the sleeve body 1 and the flange 2 are substantially C-shaped in cross section. Through setting up flange 2, can hang the cover body 1 of polished rod anti-scraper in well head cross very conveniently, simple structure, convenient operation, be convenient for installation and dismantlement.
As shown in fig. 1, further, the polish rod scraper further comprises a U-shaped handle 3, the handle 3 is located outside the sleeve body 1, two ends of the handle 3 are fixedly connected with the flange 2, and a space for a hand to extend into is formed between the handle 3 and the flange 2. Through setting up handle 3, the handheld handle 3 of being convenient for overlaps outside the polished rod with polished rod scratch preventer, convenient operation.
Specifically, the handle 3 is perpendicular to the axial direction of the sleeve body 1 to reduce the space occupied by the handle 3 in the vertical direction.
As shown in fig. 1, in one embodiment, the sleeve body 1, the flange 2 and the handle 3 are integrally formed to improve the structural strength of the polish rod scraper, and the polish rod scraper is convenient to manufacture.
As shown in fig. 1, the utility model also provides a polished rod anti-scraping device, it includes well head cross and foretell polished rod anti-scraping device, inside the well head cross was stretched into to the cover body 1 of polished rod anti-scraping device, during the use, the polished rod passed the perforation 11 in the cover body 1. For example, the wellhead cross is a wellhead small cross.
The utility model discloses a device is prevented scraping by polished rod can protect the polished rod through setting up the polished rod scraper, reduces the damage such as the scraping of well head cross to the polished rod.
In one embodiment, the outer side wall of the upper end of the sleeve body 1 is provided with an annular flange 2 protruding radially outwards from the sleeve body 1, the flange 2 is seated on the upper end face of the wellhead four-way, and the sleeve body 1 is hung inside the wellhead four-way through the flange 2.
This embodiment is through setting up flange 2, can hang the cover body 1 of polished rod anti-scraper in well head cross very conveniently, simple structure, convenient operation, the installation and the dismantlement of being convenient for.
Further, the external diameter of flange 2 is greater than the internal diameter of well head cross to can sit on the terminal surface of well head cross, the external diameter of the cover body 1 is less than the internal diameter of well head cross, inside with stretching into the well head cross, the internal diameter of the cover body 1 is greater than the external diameter of polished rod, so that the polished rod can reciprocate in the cover body 1. For example, the jacket body 1 has an outer diameter of 120mm, the jacket body 1 has an inner diameter (i.e., the diameter of the through-hole 11) of 100mm, the flange 2 has an outer diameter of 155mm, and the jacket body 1 has a length of 60 mm.
Further, cover body 1 keeps apart each right angle and polished rod in the well head cross, or, the length of cover body 1 is not less than the top of well head cross to the distance between the right angle of the bottom in the well head cross to avoid polished rod and the right angle in the well head cross to contact, the protection polished rod is not scratched by the right angle in the well head cross.
In order to verify the practicability of the polished rod scraper, two oil wells are respectively selected for a contrast test, and the method specifically comprises the following steps:
1. during the anti-impact distance adjustment operation of the first oil well, a polish rod scraper is not adopted, the polish rod is directly lifted or lowered by using a crane, in order to reduce polish rod loss, the speed is reduced to the minimum in the crane construction process, the anti-impact distance adjustment process is used for 1 hour and 20 minutes, and a deep groove is ground by the polish rod to influence normal use;
2. during the operation of carrying out the scour protection apart from the adjustment to second mouthful of oil well, adopt polished rod anti-scraper, because polished rod anti-scraper's contact surface is smooth circular arc, frictional force reduces relatively, and the crane is relatively very fast in the work progress speed, adjusts the scour protection apart from the in-process and uses 35 minutes to the polished rod does not have obvious scratch.
Can know through the contrast, the utility model discloses a polished rod is prevented scraping the ware and is had following advantage at least: firstly, the contact surface of the polish rod scratch preventer is smooth, the operation process is smooth, and the working efficiency of daily distance adjustment and blockage release is improved; and secondly, the polished rod scratch preventer effectively reduces the scraping of the small four-way of the well mouth on the polished rod, and in the process of lifting or lowering the polished rod, the right-angle contact scraping of the original polished rod and the inner edge of the small four-way of the well mouth is changed into the sliding of the polished rod along the polished arc surface of the scratch preventer, so that the polished rod is protected, the service life of the polished rod is prolonged, and the production cost of an oil well is reduced.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. A polish rod scratch preventer, comprising:
the sleeve body is internally provided with a through hole which is axially communicated and is used for the polished rod to pass through, the side wall of the sleeve body is provided with a notch which is axially communicated and is used for the polished rod to enter the through hole, the hole wall of the through hole is a smooth arc surface, and the joint of the hole wall of the through hole and the end surfaces of the two ends of the sleeve body is in smooth transition.
2. The polish rod scratch preventer of claim 1, wherein the through hole comprises a cylindrical hole and a tapered hole located above the cylindrical hole, the tapered hole extends upward from the cylindrical hole to the upper end surface of the sleeve body, the inner diameter of the tapered hole is gradually enlarged from bottom to top, and the junction of the wall of the tapered hole and the wall of the cylindrical hole is in smooth transition.
3. The polish rod scraper of claim 1, wherein the junction of the side walls of said gap and the walls of said bore is rounded.
4. The polish rod scraper as claimed in claim 1, wherein the outer side wall of the upper end of the sleeve body is provided with an annular flange protruding radially outward, the flange can be seated on the end surface of the wellhead cross, and the notch penetrates through the flange in the axial direction.
5. The polish rod scraper of claim 4, further comprising a U-shaped handle located outside the housing, both ends of the handle being fixedly connected to the flange.
6. The polish rod scratcher of any one of claims 1 to 5, wherein the jacket body has a hardness less than that of the polish rod.
7. A polish rod scratch prevention device, characterized in that the polish rod scratch prevention device comprises a wellhead cross and a polish rod scratch prevention device according to any one of claims 1 to 6, wherein a sleeve body of the polish rod scratch prevention device extends into the interior of the wellhead cross.
8. The polish rod scratch prevention device of claim 7, wherein an annular flange protruding radially outward is provided on an outer side wall of an upper end of the sleeve body, the flange is seated on an upper end face of the wellhead cross, and the sleeve body is hung inside the wellhead cross by the flange.
9. The polish rod scratch prevention device of claim 8, wherein the outer diameter of the flange is larger than the inner diameter of the wellhead cross, the outer diameter of the sleeve is smaller than the inner diameter of the wellhead cross, and the inner diameter of the sleeve is larger than the outer diameter of the polish rod.
10. The polish rod scratch prevention device of claim 7, wherein the housing body isolates each right angle in the wellhead cross from the polish rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921390906.3U CN210977334U (en) | 2019-08-26 | 2019-08-26 | Polish rod scratch preventer and polish rod scratch preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921390906.3U CN210977334U (en) | 2019-08-26 | 2019-08-26 | Polish rod scratch preventer and polish rod scratch preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210977334U true CN210977334U (en) | 2020-07-10 |
Family
ID=71421709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921390906.3U Active CN210977334U (en) | 2019-08-26 | 2019-08-26 | Polish rod scratch preventer and polish rod scratch preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210977334U (en) |
-
2019
- 2019-08-26 CN CN201921390906.3U patent/CN210977334U/en active Active
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