CN115126424A - Oil field is with oil recovery centralizer in pit - Google Patents
Oil field is with oil recovery centralizer in pit Download PDFInfo
- Publication number
- CN115126424A CN115126424A CN202210935799.8A CN202210935799A CN115126424A CN 115126424 A CN115126424 A CN 115126424A CN 202210935799 A CN202210935799 A CN 202210935799A CN 115126424 A CN115126424 A CN 115126424A
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- supporting
- centralizer
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- installation
- wall
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- 238000011084 recovery Methods 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 9
- 238000000605 extraction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000004575 stone Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
- E21B17/1042—Elastomer protector or centering means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- 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 provides an underground oil extraction centralizer for an oil field, and relates to the technical field of oil field oil extraction equipment. The underground oil extraction centralizer for the oil field comprises an installation fixing structure fixed on the outer wall of a drill pipe, wherein the installation fixing structure comprises a first installation seat and a second installation seat, and a plurality of installation holes are formed in the peripheral sides of the first installation seat and the second installation seat; the first mounting seat and the second mounting seat are sleeved and fixed on the outer wall of the drill pipe; the mounting and fixing structure is fixedly connected with a supporting mechanism; and a plurality of groups of elastic buffer mechanisms are arranged on the peripheral sides of the supporting mechanisms. Through the simple rotary supporting mechanism and the elastic buffer mechanism of design, when the supporting seat receives blockking of rubble piece at the removal in-process, the supporting seat can receive the buffering of spring, when the buffering extrudees extreme position, and a plurality of supporting seats can sideslip in the whole sideslip in the surface of rubble to realize the whole rotation of a plurality of supporting seats, so that better passing through by the region that blocks, also can reduce friction simultaneously, reduce wearing and tearing.
Description
Technical Field
The invention relates to the technical field of oil extraction equipment of oil fields, in particular to an underground oil extraction centralizer for an oil field.
Background
The centralizer belongs to a well cementing tool, has simple manufacture, beautiful structure, firmness, durability and large righting force, overcomes the defect that the original welding type centralizer is easy to be detached from welding, and is a centralizer capable of ensuring the well drilling and cementing quality. The centralizers are various in variety, and can be divided into two categories, namely elastic centralizers and rigid centralizers according to the styles, and can be divided into roller type centralizers, sliding block type centralizers, automatic reversing type centralizers and the like according to the structures. The centralizer of different structures and material is applicable to the oil well of different grade type eccentric wear.
Use the centralizer can effectively reduce the friction between drilling pipeline and the wall of a well, also can play stable supporting role to drilling pipeline simultaneously, there is the centralizer of multiple different grade type on the market at present, but the structural design of current centralizer is too simple, though can play appointed support righting effect, but when the centralizer removes at the wall of a well, receive very easily blockking of other objects such as little garrulous stone, because the drill pipe is in continuous moving state, consequently fixed centralizer receives the stone and blocks and also can only be drawn by force to pass through, the in-process that passes through by force, both can accelerate the wearing and tearing of centralizer, also can increase the resistance simultaneously, influence the machining efficiency of drill pipe.
Therefore, a new oil field underground oil production centralizer is developed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an oil field underground oil extraction centralizer, which solves the problems that the structural design of the existing centralizer is too simple, the centralizer can play a designated supporting and centralizing role, but when moving on a well wall, the centralizer is easily blocked by other objects such as broken stones and the like, and a drill pipe is in a continuous moving state, so that the fixed centralizer can only be forcibly pulled to pass through even if being blocked by the stones, and the abrasion of the centralizer can be accelerated, the resistance can be increased simultaneously, and the processing efficiency of the drill pipe is influenced in the forced passing process.
In order to realize the purpose, the invention is realized by the following technical scheme: a centralizer for underground oil extraction for an oil field comprises an installation fixing structure fixed on the outer wall of a drill pipe, wherein a supporting mechanism is fixedly connected to the installation fixing structure;
a plurality of groups of elastic buffer mechanisms are arranged on the periphery of the supporting mechanism, and supporting seats are fixedly connected to the outer sides of the plurality of groups of elastic buffer mechanisms;
and the two sides between the supporting seats are fixedly connected with a first connecting frame and a second connecting frame respectively.
Preferably, the mounting and fixing structure comprises a first mounting seat and a second mounting seat, and a plurality of mounting holes are formed in the peripheral sides of the first mounting seat and the second mounting seat.
Through the technical scheme, the first mounting seat and the second mounting seat can support and position the supporting mechanism.
Preferably, the first mounting seat and the second mounting seat are sleeved and fixed on the outer wall of the drill pipe.
Through above-mentioned technical scheme, first mount pad and second mount pad are all realized fixing through a plurality of set screw and drill pipe.
Preferably, the supporting mechanism includes first rotatory support and the rotatory support of second, a plurality of dead levers of fixedly connected with between first rotatory support and the rotatory support of second, it is a plurality of center fixedly connected with supporting disk between the dead lever, the supporting disk is close to week side at center and has seted up a plurality of round holes corresponding with the dead lever, supporting disk outer wall bilateral symmetry is provided with a plurality of fixed pipe box, week side of supporting disk has seted up a plurality of spacing holes.
Through the technical scheme, the supporting mechanism is used for supporting the elastic buffering mechanism, linkage between the first rotating support and the second rotating support can be realized, and the first rotating support and the second rotating support can rotate synchronously.
Preferably, the first rotating support and the second rotating support are respectively connected with the first mounting seat and the second mounting seat in a rotating manner.
Through the technical scheme, the first rotating support and the second rotating support can rotate on the first mounting seat and the second mounting seat respectively.
Preferably, a through hole corresponding to the drill pipe is formed in the center of the supporting plate, the plurality of groups of fixing pipe sleeves are welded and fixed on two sides of the outer wall of the supporting plate, and the plurality of groups of fixing pipe sleeves are fixedly connected with the corresponding fixing rods.
Through the technical scheme, the supporting disc can be stably connected and fixed with the fixing rods.
Preferably, the elastic buffer mechanism comprises a limit pipe sleeve, a first buffer spring and a second buffer spring are respectively sleeved on two sides of the outer wall of the limit pipe sleeve, and a first buffer rod and a second buffer rod are respectively connected to the centers of the two ends in a sliding manner.
Through above-mentioned technical scheme, when the supporting seat received blockking of rubble piece at the removal in-process, the supporting seat can extrude the ascending first buffer spring of moving direction or second buffer spring to realize the removal buffering of a plurality of supporting seats, when the buffer extrusion extreme position, a plurality of supporting seats can be at the whole sideslip in the surface of rubble, thereby realize the whole rotation of a plurality of supporting seats, so that better through by the region that blocks, also can reduce friction simultaneously, reduce wearing and tearing.
Preferably, the limiting pipe sleeve is fixed at the center of the corresponding limiting hole.
Through the technical scheme, the limiting pipe sleeve can be positioned and fixed.
Preferably, the supporting seat is integrally designed into a U-shaped structure and is made of stainless steel materials, edges on the outer side of the supporting seat are all rounded, and one ends, away from the limiting pipe sleeves, of the first buffer rods and the second buffer rods are fixed on two sides of the inner wall of the supporting seat respectively.
Through the technical scheme, the supporting seat which is integrally designed into the U-shaped structure can realize the supporting structure, and the fillet structure on the outer side of the supporting seat can reduce the friction between the supporting seat and the well wall.
The invention provides an underground oil extraction centralizer for an oil field. The method has the following beneficial effects:
1. this oil field is with oil recovery centralizer in pit through the simple rotary supporting mechanism and the elastic buffer mechanism of design, when the supporting seat received blockking of rubble piece at the removal in-process, the supporting seat can receive the buffering of spring, when the buffer extrusion extreme position, a plurality of supporting seats can be at the whole sideslip in the surface of rubble to realize the whole rotation of a plurality of supporting seats, so that better passing through by the region that blocks, also can reduce friction simultaneously, reduce wearing and tearing.
2. This oil field is with centralizer of producing oil in pit through being U type structure with supporting seat global design, can realize stable support, and the fillet structure in the supporting seat outside also can reduce the friction between supporting seat and the wall of a well simultaneously, reduces the resistance, improves the machining efficiency of drill pipe.
Drawings
FIG. 1 is a schematic view of a first perspective structure of the present invention;
FIG. 2 is a schematic view of a second perspective structure of the present invention;
FIG. 3 is a first perspective view of the centralizer body of the present invention;
FIG. 4 is a second perspective view of the centralizer body of the invention;
fig. 5 is a schematic view of an installation structure of the elastic buffer mechanism of the present invention.
Wherein, 1, drilling a pipe; 2. installing a fixed structure; 201. a first mounting seat; 202. a second mounting seat; 203. mounting holes; 3. a support mechanism; 301. a first rotating support; 302. a second rotating support; 303. fixing the rod; 304. a support disc; 305. a circular hole; 306. fixing the pipe sleeve; 307. a limiting hole; 4. an elastic buffer mechanism; 401. a limiting pipe sleeve; 402. a first buffer spring; 403. a second buffer spring; 404. a first buffer rod; 405. a second buffer rod; 5. a supporting seat; 6. a first connecting frame; 7. a second link frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-2, an embodiment of the present invention provides a downhole oil production centralizer for an oil field, including an installation fixing structure 2 fixed on an outer wall of a drill pipe 1, where the installation fixing structure 2 includes a first installation base 201 and a second installation base 202, a plurality of installation holes 203 are respectively formed on peripheral sides of the first installation base 201 and the second installation base 202, and the first installation base 201 and the second installation base 202 can support and position a support mechanism 3; the first mounting seat 201 and the second mounting seat 202 are sleeved and fixed on the outer wall of the drill pipe 1, and the first mounting seat 201 and the second mounting seat 202 are fixed with the drill pipe 1 through a plurality of fixing screws;
as shown in fig. 3 or 5, the mounting and fixing structure 2 is fixedly connected with a supporting mechanism 3, the supporting mechanism 3 includes a first rotating support 301 and a second rotating support 302, a plurality of fixing rods 303 are fixedly connected between the first rotating support 301 and the second rotating support 302, a supporting plate 304 is fixedly connected to the center between the plurality of fixing rods 303, a plurality of round holes 305 corresponding to the fixing rods 303 are formed on the periphery of the supporting plate 304 near the center, a plurality of fixing pipe sleeves 306 are symmetrically formed on both sides of the outer wall of the supporting plate 304, a plurality of limiting holes 307 are formed on the periphery of the supporting plate 304, the supporting mechanism 3 is used for supporting the elastic buffer mechanism 4, and meanwhile, the linkage between the first rotating support 301 and the second rotating support 302 can be realized, and the first rotating support 301 and the second rotating support 302 can synchronously rotate; the first rotating support 301 and the second rotating support 302 are respectively and rotatably connected with the first mounting seat 201 and the second mounting seat 202, so that the first rotating support 301 and the second rotating support 302 can respectively rotate on the first mounting seat 201 and the second mounting seat 202; a through hole corresponding to the drill pipe 1 is formed in the center of the support plate 304, a plurality of groups of fixing pipe sleeves 306 are welded and fixed on two sides of the outer wall of the support plate 304, and the plurality of groups of fixing pipe sleeves 306 are fixedly connected with the corresponding fixing rods 303, so that the support plate 304 can be stably connected and fixed with the plurality of fixing rods 303;
as shown in fig. 5, a plurality of sets of elastic buffer mechanisms 4 are installed on the peripheral side of the support mechanism 3, each elastic buffer mechanism 4 includes a limiting pipe sleeve 401, and the limiting pipe sleeves 401 are fixed at the centers of the corresponding limiting holes 307, so that the limiting pipe sleeves 401 can be positioned and fixed; the two sides of the outer wall of the limiting pipe sleeve 401 are respectively sleeved with a first buffer spring 402 and a second buffer spring 403, the centers of the two ends are respectively connected with a first buffer rod 404 and a second buffer rod 405 in a sliding mode, when the supporting seat 5 is blocked by broken stones in the moving process, the supporting seat 5 can extrude the first buffer spring 402 or the second buffer spring 403 in the moving direction, so that the moving buffering of the supporting seats 5 is realized, when the buffering extrusion is carried out to the limiting position, the supporting seats 5 can integrally sideslip on the surface of small broken stones, so that the supporting seats 5 integrally rotate, the supporting seats 5 are separated from contact with the small broken stones, the centralizer can better pass through the blocked area, meanwhile, friction can be reduced, and abrasion is reduced;
the supporting seats 5 are fixedly connected to the outer sides of the multiple groups of elastic buffer mechanisms 4, the supporting seats 5 are integrally designed to be of a U-shaped structure, the supporting seats 5 are made of stainless steel, the supporting seats 5 made of stainless steel have higher strength and wear resistance, fillets are formed in edges of the outer sides of the supporting seats 5, and ends, far away from the limiting pipe sleeves 401, of the first buffer rods 404 and the second buffer rods 405 are fixed to two sides of the inner wall of the supporting seats 5 respectively, so that the supporting seats 5 integrally designed to be of the U-shaped structure can realize a supporting structure, and the friction between the supporting seats 5 and a well wall can be reduced due to the fillet structure of the outer sides of the supporting seats 5;
as shown in fig. 4, the first connecting frame 6 and the second connecting frame 7 are fixedly connected to both sides of the plurality of supporting seats 5, and the plurality of supporting seats 5 can be integrally formed by the first connecting frame 6 and the second connecting frame 7, so that the plurality of supporting seats 5 can be synchronously rotated.
The working principle is as follows: the first mounting seat 201 and the second mounting seat 202 are fixed on the outer wall of the drill pipe 1 through a plurality of fixing screws, the mounting and fixing structure 2 is fixedly connected with a supporting mechanism 3, the supporting mechanism 3 is used for supporting an elastic buffer mechanism 4, meanwhile, the linkage between the first rotating support 301 and the second rotating support 302 can also be realized, the first rotating support 301 and the second rotating support 302 can synchronously rotate, a plurality of groups of elastic buffer mechanisms 4 are arranged on the peripheral sides of the supporting mechanism 3, when the supporting seat 5 is blocked by broken stones in the moving process, the supporting seat 5 can extrude the first buffer spring 402 or the second buffer spring 403 in the moving direction, so that the moving buffering of the supporting seats 5 is realized, when the buffering is extruded to the limit position, the supporting seats 5 can integrally sideslip on the surface of the broken stones, so that the integral rotation of the supporting seats 5 is realized, so as to better pass through the blocked area, meanwhile, friction and abrasion can be reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an oil field is with oil recovery centralizer in pit which characterized in that: the device comprises a mounting and fixing structure (2) fixed on the outer wall of a drill pipe (1), wherein a supporting mechanism (3) is fixedly connected to the mounting and fixing structure (2);
a plurality of groups of elastic buffer mechanisms (4) are arranged on the periphery of the supporting mechanism (3), and supporting seats (5) are fixedly connected to the outer sides of the plurality of groups of elastic buffer mechanisms (4);
a plurality of both sides between the supporting seat (5) are fixedly connected with a first connecting frame (6) and a second connecting frame (7) respectively.
2. The oilfield downhole production centralizer of claim 1, wherein: the installation fixing structure (2) comprises a first installation seat (201) and a second installation seat (202), and a plurality of installation holes (203) are formed in the peripheral sides of the first installation seat (201) and the second installation seat (202).
3. The oilfield downhole production centralizer of claim 2, wherein: the first mounting seat (201) and the second mounting seat (202) are sleeved and fixed on the outer wall of the drill pipe (1).
4. The oilfield downhole production centralizer of claim 3, wherein: supporting mechanism (3) include first rotatory support (301) and the rotatory support of second (302), a plurality of dead levers of fixedly connected with (303) between first rotatory support (301) and the rotatory support of second (302), it is a plurality of center fixedly connected with supporting disk (304) between dead lever (303), supporting disk (304) are close to the week side at center and have seted up a plurality of round holes (305) corresponding with dead lever (303), supporting disk (304) outer wall both sides symmetry is provided with a plurality of fixed pipe box (306), a plurality of spacing holes (307) have been seted up to week side of supporting disk (304).
5. The oilfield downhole production centralizer of claim 4, wherein: the first rotating support (301) and the second rotating support (302) are respectively connected with the first mounting seat (201) and the second mounting seat (202) in a rotating mode.
6. The oilfield downhole production centralizer of claim 4, wherein: the center of the supporting plate (304) is provided with a through hole corresponding to the drill pipe (1), the plurality of groups of fixing pipe sleeves (306) are welded and fixed on two sides of the outer wall of the supporting plate (304), and the plurality of groups of fixing pipe sleeves (306) are fixedly connected with the corresponding fixing rods (303).
7. The oilfield downhole production centralizer of claim 4, wherein: the elastic buffer mechanism (4) comprises a limit pipe sleeve (401), a first buffer spring (402) and a second buffer spring (403) are respectively sleeved on two sides of the outer wall of the limit pipe sleeve (401), and the centers of two ends are respectively connected with a first buffer rod (404) and a second buffer rod (405) in a sliding mode.
8. The oilfield downhole production centralizer of claim 7, wherein: the limiting pipe sleeve (401) is fixed at the center of the corresponding limiting hole (307).
9. The centralizer of claim 7, wherein: the supporting seat (5) is integrally designed into a U-shaped structure and is made of stainless steel materials, edges on the outer side of the supporting seat (5) are all provided with fillets, and one ends, away from the limiting pipe sleeves (401), of the first buffer rods (404) and the second buffer rods (405) are fixed on two sides of the inner wall of the supporting seat (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935799.8A CN115126424A (en) | 2022-08-05 | 2022-08-05 | Oil field is with oil recovery centralizer in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935799.8A CN115126424A (en) | 2022-08-05 | 2022-08-05 | Oil field is with oil recovery centralizer in pit |
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| Publication Number | Publication Date |
|---|---|
| CN115126424A true CN115126424A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210935799.8A Pending CN115126424A (en) | 2022-08-05 | 2022-08-05 | Oil field is with oil recovery centralizer in pit |
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| CN (1) | CN115126424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823061A (en) * | 2024-03-06 | 2024-04-05 | 河北上善石油机械有限公司 | Integral powerful elastic sleeve centralizer |
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|---|---|---|---|---|
| CN201650148U (en) * | 2010-03-03 | 2010-11-24 | 张治国 | Integral casing centralizer |
| CN213573952U (en) * | 2021-06-03 | 2021-06-29 | 东营中昶能源科技有限公司 | Underground compression type centralizer |
| CN215108795U (en) * | 2021-08-18 | 2021-12-10 | 德州精锐石油机械有限公司 | Horizontal well hydraulic casing centralizer |
| CN215169810U (en) * | 2021-07-13 | 2021-12-14 | 张在明 | Injection and extraction rotary centralizer |
| CN216894286U (en) * | 2022-03-25 | 2022-07-05 | 四川易成机械有限责任公司 | Spring centralizer |
-
2022
- 2022-08-05 CN CN202210935799.8A patent/CN115126424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650148U (en) * | 2010-03-03 | 2010-11-24 | 张治国 | Integral casing centralizer |
| CN213573952U (en) * | 2021-06-03 | 2021-06-29 | 东营中昶能源科技有限公司 | Underground compression type centralizer |
| CN215169810U (en) * | 2021-07-13 | 2021-12-14 | 张在明 | Injection and extraction rotary centralizer |
| CN215108795U (en) * | 2021-08-18 | 2021-12-10 | 德州精锐石油机械有限公司 | Horizontal well hydraulic casing centralizer |
| CN216894286U (en) * | 2022-03-25 | 2022-07-05 | 四川易成机械有限责任公司 | Spring centralizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823061A (en) * | 2024-03-06 | 2024-04-05 | 河北上善石油机械有限公司 | Integral powerful elastic sleeve centralizer |
| CN117823061B (en) * | 2024-03-06 | 2024-05-14 | 河北上善石油机械有限公司 | Integral powerful elastic sleeve centralizer |
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