CN110608006A - Well wall repairing type roller guide shoe - Google Patents
Well wall repairing type roller guide shoe Download PDFInfo
- Publication number
- CN110608006A CN110608006A CN201910907497.8A CN201910907497A CN110608006A CN 110608006 A CN110608006 A CN 110608006A CN 201910907497 A CN201910907497 A CN 201910907497A CN 110608006 A CN110608006 A CN 110608006A
- Authority
- CN
- China
- Prior art keywords
- roller
- well
- guide shoe
- wall
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 241000251468 Actinopterygii Species 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- 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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a shaft wall repairing type roller guide shoe which comprises a lower joint, a shell, a central shaft, a stepped tooth roller, a fixed block, a mushroom-spraying head, a roller and a roller positioning sheet. The invention has the beneficial effects that: can will hinder barrier such as some detritus and progressively crush under the dual function of cascaded tooth gyro wheel and the wall of a well, restore irregular wall of a well, eliminate the irregular material that the outstanding wall of a well makes the wall of a well smooth and level, well cementation cement thick liquid is unanimous at restoration well section thickness, and then obtains high quality well cementation cement ring post. The damage caused to the well wall by impact can be avoided, the blocking point substances protruding out of the well wall can be avoided under the action of the mushroom head upper roller, the tool string is prevented from being difficult to drop and being stuck, the tool string is suitable for casing pipe well-dropping operation with recyclable slurry and fish bone meng pipe tool string well-dropping operation with non-recyclable slurry, no influence is generated on well drilling and completion operation, and the tool is an oil-gas well operation tool with high popularization value.
Description
Technical Field
The invention relates to a guide shoe, in particular to a well wall repairing type roller guide shoe, and belongs to the technical field of petroleum and natural gas drilling tools.
Background
In the process of the tool string descending operation, particularly in the process of descending the well of the well cementation casing pipe string, the fish bone meng pipe and other tool strings, the tool string is difficult to descend due to the fact that the irregular well wall, the steps and other foreign matters form blocking points, and even the tool string is stuck and can not continue descending the well. Even complex conditions under the well are caused, so that the well construction period is prolonged, and the well construction cost is increased. Meanwhile, in the process of putting the pipe string in, due to the impact effect of the pipe string, the head of the pipe string damages the well wall, the well wall is damaged, an underground expanding point is formed, and the well cementation quality is influenced.
Disclosure of Invention
The present invention is directed to solving the above problems by providing a roller guide shoe for borehole wall rehabilitation.
The invention realizes the purpose through the following technical scheme: the utility model provides a wall of a well restoration formula roller gyro wheel guide shoe, includes the guide shoe, the guide shoe comprises lower clutch, shell, center pin, cascaded tooth gyro wheel, fixed block, injection mushroom head, roller and roller spacer, lower clutch, shell, center pin, cascaded tooth gyro wheel, fixed block, injection mushroom head, roller and roller spacer are installed according to the order from a left side to the right side in proper order, lower clutch and shell pass through threaded connection, shell and center pin adopt clearance fit to guarantee the validity of relative rotation, center pin and cascaded tooth gyro wheel pass through the interference mode and connect, shell and fixed block connect through the screw thread and provide installation space for cascaded tooth gyro wheel, cascaded tooth gyro wheel and fixed block adopt clearance fit to guarantee the validity of relative rotation, fixed block and injection mushroom head adopt threaded connection, the spraying mushroom head and the roller are in clearance fit to ensure the rolling effectiveness of the roller, the roller positioning sheet is installed on the spraying mushroom head in an embedding mode, and the roller positioning sheet are in clearance fit to ensure the rolling effectiveness of the roller as a further scheme of the invention: and a channel for slurry to flow is arranged in the guide shoe.
As a further scheme of the invention: the four stepped tooth rollers and the centralizer of the shell form an external supporting part of the tool, and the top of the mushroom spraying head is provided with a roller.
As a further scheme of the invention: the mushroom head, the roller and the roller positioning sheet form a resistance-avoiding and righting part of the tool.
As a further scheme of the invention: the shell, the central shaft, the stepped tooth roller and the fixed block form a roller centralizing and repairing well wall part of the tool.
As a further scheme of the invention: the stepped tooth roller, the roller and the roller positioning sheet are made of hard alloy.
As a further scheme of the invention: the stepped tooth roller is designed in a stepped mode.
The invention has the beneficial effects that: the borehole wall repairing type roller guide shoe is reasonable in design, a channel for slurry to flow is arranged in the guide shoe, the smooth supply of slurry to a mushroom head position can be ensured in the descending process of a tool string, the circulation of the slurry can be ensured in the descending process of the tool string, so that substances such as drill cuttings and the like generated in the descending process of the tool can be timely discharged back to a well head, the four stepped tooth rollers and a centralizer of a shell form an external supporting part of the tool, the roller is designed on the top of the mushroom head, the tool string can be ensured not to be blocked in the descending process of the tool string, particularly when the tool string encounters an irregular borehole wall, steps and other foreign matters, the difficult descending of the tool string, particularly the pipe clamping situation, the mushroom head, the roller and the roller positioning sheet form a blockage avoiding and righting part of the tool, when the mushroom head is sprayed, the part of the roller protruding out of the mushroom head contacts with a blocking point first, because rolling friction is less than sliding friction, tool string mushroom head part relocation avoids hindering the point under the roll righting effect of roller, and a housing, the center pin, the gyro wheel righting restoration wall of a well part that this instrument was constituteed to cascaded tooth gyro wheel and fixed block, will hinder barrier such as some detritus crushing under the dual function of cascaded tooth gyro wheel and the wall of a well, and then restore the wall of a well, it is smooth to make the wall of a well of eliminating of hindering the point smooth, cascaded tooth gyro wheel, the used material of roller and roller spacer is carbide, can guarantee that the instrument can not lead to the fact the influence to the performance of instrument because of excessive wearing and tearing in the use, cascaded tooth gyro wheel adopts cascaded design, can guarantee to meet the hindering point material of hindering the point and can be followed the top to the bottom subsection and chopped up and clear.
Drawings
FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;
FIG. 2 is a schematic view of a stepped tooth roller according to the present invention;
FIG. 3 is a schematic view of the mushroom head structure according to the present invention.
In the figure: 1. the device comprises a lower joint, 2, a shell, 3, a central shaft, 4, a stepped tooth roller, 5, a fixing block, 6, a mushroom spraying head, 7, rollers, 8 and a roller positioning sheet.
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.
Referring to fig. 1 to 3, a borehole wall repairing type roller guide shoe comprises a guide shoe, wherein the guide shoe comprises a lower connector 1, a shell 2, a central shaft 3, a stepped tooth roller 4, a fixing block 5, a mushroom injection head 6, a roller 7 and a roller positioning sheet 8, the lower connector 1, the shell 2, the central shaft 3, the stepped tooth roller 4, the fixing block 5, the mushroom injection head 6, the roller 7 and the roller positioning sheet 8 are sequentially installed from left to right, the lower connector 1 is connected with the shell 2 through threads, the shell 2 is in clearance fit with the central shaft 3 to ensure the effectiveness of relative rotation, an oil filling hole is machined on a tool to ensure the effectiveness of tool lubrication, the central shaft 3 is connected with the stepped tooth roller 4 through an interference manner, lubricating oil such as kerosene is coated during connection to ensure smooth installation, the shell 2 is connected with the fixing block 5 through threads to provide an installation space for the stepped tooth roller 4, cascaded tooth gyro wheel 4 and fixed block 5 adopt clearance fit to guarantee relative rotation's validity, fixed block 5 adopts threaded connection with injection mushroom head 6, injection mushroom head 6 and roller 7 adopt clearance fit to guarantee the rolling validity of roller, roller spacer 8 adopts impregnated mode to install on injection mushroom head 6, and guarantees roller 7 and roller spacer 8 adopt clearance fit to guarantee the rolling validity of roller.
Furthermore, in the embodiment of the invention, the inside of the guide shoe is provided with a channel for slurry to flow through, so that the slurry can be smoothly supplied to the mushroom head position in the running process of the tool string, the slurry can be kept circulating in the running process of the tool string, and substances such as drill cuttings and the like generated in the running process of the tool can be timely discharged back to the wellhead.
Furthermore, in the embodiment of the invention, the four stepped tooth rollers 4 and the centralizer of the shell 2 form an external supporting part of the tool, and the roller 7 is designed at the top of the mushroom-spraying head 6, so that the tool string is not blocked in the running process, especially when encountering irregular well walls, steps and other foreign matters, and the tool string is prevented from being difficult to run and especially from being blocked.
Further, in the embodiment of the invention, the spray mushroom head 6, the roller 7 and the roller positioning sheet 8 form a resistance avoiding and righting part of the tool, when the spray mushroom head 6 meets a resistance point, the part of the roller 7 protruding out of the mushroom head contacts the resistance point first, and the position of the mushroom head part of the tool string is changed to avoid the resistance point under the rolling righting action of the roller 7 because the rolling friction is smaller than the sliding friction.
Further, in the embodiment of the invention, the shell 2, the central shaft 3, the stepped tooth roller 4 and the fixing block 5 form a roller centralizing and repairing well wall part of the tool, and obstacles such as resistance point rock debris and the like are crushed under the dual action of the stepped tooth roller 4 and the well wall, so that the well wall is repaired, and the resistance points are eliminated, and the well wall is smooth.
Furthermore, in the embodiment of the invention, the materials of the stepped tooth roller 4, the roller 7 and the roller positioning plate 8 are all made of hard alloy, so that the use performance of the tool cannot be influenced by excessive abrasion in the use process of the tool.
Further, in the embodiment of the invention, the stepped tooth roller 4 adopts a stepped design, which can ensure that the material meeting the resistance point can be cut and removed from the top to the bottom.
The working principle is as follows: when the guide shoe is used, obstacles such as resistance point rock debris and the like can be progressively crushed under the dual actions of the stepped tooth roller 4 and the well wall, the irregular well wall can be repaired, irregular substances protruding out of the well wall are eliminated, the well wall is smooth and flat, the thickness of well cementing cement paste in a repaired well section is consistent, and then a high-quality well cementing cement ring column is obtained, the damage to the well wall caused by impact can be avoided, the resistance point substances protruding out of the well wall can be avoided under the action of the rollers 7 on the spray mushroom head 6, the situations of difficulty in descending and blocking of a tool string are avoided, the guide shoe is not only suitable for the casing descending operation with recyclable slurry, but also suitable for the descending operation of a tool string with non-recyclable slurry and fishbone dreaming pipe, the use of the guide shoe can not generate any influence on the drilling and completion operation, and the guide shoe is an oil-gas well operation tool.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a wall of a well restores formula roller gyro wheel guide shoe, includes the guide shoe, its characterized in that: the guide shoe comprises a lower joint (1), a shell (2), a central shaft (3), a stepped tooth roller (4), a fixing block (5), a spray mushroom head (6), a roller (7) and a roller positioning sheet (8), wherein the lower joint (1), the shell (2), the central shaft (3), the stepped tooth roller (4), the fixing block (5), the spray mushroom head (6), the roller (7) and the roller positioning sheet (8) are sequentially installed from left to right, the lower joint (1) is connected with the shell (2) through threads, the shell (2) and the central shaft (3) are in clearance fit to ensure the effectiveness of relative rotation, the central shaft (3) is connected with the stepped tooth roller (4) in an interference manner, and the shell (2) is connected with the fixing block (5) through threads to provide an installation space for the stepped tooth roller (4), stepped tooth gyro wheel (4) and fixed block (5) adopt clearance fit to guarantee relative rotation's validity, fixed block (5) and spray mushroom head (6) adopt threaded connection, spray mushroom head (6) and roller (7) and adopt clearance fit to guarantee the rolling validity of roller, roller spacer (8) adopt impregnated mode to install on spraying mushroom head (6), and guarantee roller (7) and roller spacer (8) adopt clearance fit to guarantee the rolling validity of roller.
2. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: and a channel for slurry to flow is arranged in the guide shoe.
3. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: the four stepped tooth rollers (4) and the centralizer of the shell (2) form an external supporting part of the tool, and a roller (7) is designed at the top of the mushroom spraying head (6).
4. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: the mushroom head (6), the roller (7) and the roller positioning sheet (8) form a resistance-avoiding and righting part of the tool.
5. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: the roller righting and repairing well wall part of the tool is composed of the shell (2), the central shaft (3), the stepped tooth roller (4) and the fixing block (5).
6. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: the stepped tooth roller (4), the roller (7) and the roller positioning sheet (8) are all made of hard alloy.
7. The roller guide shoe for repairing well wall as claimed in claim 1, wherein: the stepped tooth roller (4) is designed in a stepped mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907497.8A CN110608006B (en) | 2019-09-24 | 2019-09-24 | Roller guide shoe for repairing well wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907497.8A CN110608006B (en) | 2019-09-24 | 2019-09-24 | Roller guide shoe for repairing well wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608006A true CN110608006A (en) | 2019-12-24 |
| CN110608006B CN110608006B (en) | 2024-05-10 |
Family
ID=68892237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910907497.8A Active CN110608006B (en) | 2019-09-24 | 2019-09-24 | Roller guide shoe for repairing well wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608006B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291764A (en) * | 1980-01-07 | 1981-09-29 | Baker International Corporation | Well casing scraping apparatus |
| US5566772A (en) * | 1995-03-24 | 1996-10-22 | Davis-Lynch, Inc. | Telescoping casing joint for landing a casting string in a well bore |
| CN2414186Y (en) * | 1999-12-13 | 2001-01-10 | 胜利石油管理局钻井工艺研究院 | Friction reduced stabilizer |
| CN2787817Y (en) * | 2005-04-04 | 2006-06-14 | 新疆石油管理局钻井工艺研究院 | Casing guide shoe |
| CN201581822U (en) * | 2009-11-27 | 2010-09-15 | 中国石油集团长城钻探工程有限公司 | Large displacement well casing guide shoe |
| CN102278080A (en) * | 2011-08-17 | 2011-12-14 | 四川蓉瑞华宝科技有限公司 | Hydraulically-operated rotary casing guide shoe |
| CN202300264U (en) * | 2011-10-09 | 2012-07-04 | 中国石油化工股份有限公司 | Step type ball pipe expander |
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| CN204804709U (en) * | 2015-05-29 | 2015-11-25 | 中国石油天然气集团公司 | Stabilizer |
| CN205558832U (en) * | 2016-04-27 | 2016-09-07 | 南充科探工具有限公司 | Safe centralizer |
| CN206000488U (en) * | 2016-08-29 | 2017-03-08 | 中石化胜利石油工程有限公司渤海钻井总公司 | Dynamical type orients down-hole casing guide shoe |
| CN106907116A (en) * | 2017-05-10 | 2017-06-30 | 西南石油大学 | Universal rolling wheel type diameter-changing centering guide |
| CN206903604U (en) * | 2017-07-10 | 2018-01-19 | 中国石油集团西部钻探工程有限公司 | Ball-type forces guide shoe |
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| CN210768670U (en) * | 2019-09-24 | 2020-06-16 | 重庆科技学院 | Well wall repairing type roller guide shoe |
-
2019
- 2019-09-24 CN CN201910907497.8A patent/CN110608006B/en active Active
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| US5566772A (en) * | 1995-03-24 | 1996-10-22 | Davis-Lynch, Inc. | Telescoping casing joint for landing a casting string in a well bore |
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| CN201581822U (en) * | 2009-11-27 | 2010-09-15 | 中国石油集团长城钻探工程有限公司 | Large displacement well casing guide shoe |
| CN102278080A (en) * | 2011-08-17 | 2011-12-14 | 四川蓉瑞华宝科技有限公司 | Hydraulically-operated rotary casing guide shoe |
| WO2013039406A1 (en) * | 2011-09-13 | 2013-03-21 | Haabesland Geir | Collar |
| CN202300264U (en) * | 2011-10-09 | 2012-07-04 | 中国石油化工股份有限公司 | Step type ball pipe expander |
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| CN206903604U (en) * | 2017-07-10 | 2018-01-19 | 中国石油集团西部钻探工程有限公司 | Ball-type forces guide shoe |
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| 黄桢: "九龙山深井非常规井身结构固井技术", 《钻采工艺》, no. 7 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110608006B (en) | 2024-05-10 |
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