CN110513067A - A kind of righting casing blocks pipe - Google Patents
A kind of righting casing blocks pipe Download PDFInfo
- Publication number
- CN110513067A CN110513067A CN201910844012.5A CN201910844012A CN110513067A CN 110513067 A CN110513067 A CN 110513067A CN 201910844012 A CN201910844012 A CN 201910844012A CN 110513067 A CN110513067 A CN 110513067A
- Authority
- CN
- China
- Prior art keywords
- righting strip
- section
- righting
- tube body
- width
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
- E21B29/10—Reconditioning of well casings, e.g. straightening
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)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
A kind of righting casing blocks pipe, there is through-hole in tube body, the top of tube body processes flat figure external screw thread, the lower part of tube body processes flat figure internal screw thread, the flat figure external screw thread is identical as the flat figure internal screw thread button-type, structure size is identical, in the external process of tube body, resettlement groove is set, the resettlement groove is 3-8, and it is evenly distributed on the outer wall of tube body, the resettlement groove is divided into slot section, bracket groove section, lower slot section, the bracket groove section is dove-tail form, the width of the outward opening of the bracket groove section is less than the width of righting strip, fluting is arranged at the top of righting strip, righting strip is mounted in the resettlement groove, the top of righting strip is in the upper slot section, righting strip has one section to be in the bracket groove section, righting strip has outwardly projecting portion, the outwardly projecting portion of righting strip is arch, the outwardly projecting portion of righting strip is in the bracket groove section Under, righting strip lower part is in the resettlement groove, and the outwardly projecting portion is when by external force in energy deformation retract to the lower slot section.
Description
Technical field
The present invention is the equipment of oil exploitation well workover, is that a kind of righting casing blocks pipe.
Background technique
Casing Failure in oil development generates leakage, prevents it from normally recovering the oil or infusing using can be damaged after remote
Water will block casing after this thing happens.Casing blocks, exactly next section blocks pipe at casing damage, so
It blocks backward and binder (cement) is perfused in gap between pipe and casing, make to block pipe and be integrally fixed with casing, and can protect
Sealing is held, the technology of this repairing casing is known as casing at the scene and is blocked.Since casing damage section is generally very long, the patch needed
Plugging is also very long, needs to be blocked in the integral tripping in casing of effective screwed connection by more, in order to guarantee after casing blocks in it
There is maximum internal diameter in portion, and outer diameter is necessarily less than casing inner diameter 8-12mm again.Therefore, thickness of pipe wall is blocked compared with book, it cannot will be existing
Righting mechanism be mounted on and block on pipe, prevent to block under pipe when in casing from occuping among casing, cause to block pipe and set
Annular space between pipe is uneven, and the binder (cement) for making perfusion unevenly, largely effects on casing and blocks quality, cause to cover
Validity period after pipe blocks is short, or the requirement of reparation is not achieved.
Summary of the invention
The purpose of the present invention is designing a kind of righting casing to block pipe, overcomes the problems, such as it above-mentioned, can will block
Pipe is supported on casing middle position, and the annular space for making to block between pipe and casing is uniform, keeps the Bonded Ring of perfusion uniform, guarantees
Block quality.
The object of the present invention is achieved like this: including tube body, righting strip, there is through-hole, the top processing of tube body in tube body
The lower part of flat figure external screw thread, tube body processes flat figure internal screw thread, the flat figure external screw thread and the flat figure internal screw thread button
Type is identical, and structure size is identical, resettlement groove is arranged in the external process of tube body, the resettlement groove is 3-8, and is uniformly distributed
On the outer wall of tube body, the resettlement groove is divided into slot section, bracket groove section, lower slot section, and the bracket groove section is dove-tail form, described
The width of outward opening of bracket groove section be less than the width of righting strip, fluting arranged at the top of righting strip, and the width of righting strip is less than institute
The width of the upper slot section, lower slot section stated, the width of righting strip are less than the dovetail bottom width of the bracket groove section, the width of upper slot section
Degree is greater than the dovetail bottom width of the bracket groove section, and righting strip is mounted in the resettlement groove, and the top of righting strip is in
In the upper slot section, righting strip has one section in the bracket groove section, and righting strip is blocked by the bracket groove section, makes righting
Item cannot be detached from the resettlement groove outward, and righting strip has outwardly projecting portion, and the outwardly projecting portion of righting strip is arch, the righting strip
Outwardly projecting portion is under the bracket groove section, and the lower part of righting strip is in the resettlement groove, the outwardly projecting portion by
When external force in energy deformation retract to the lower slot section.
The beneficial effects of the present invention are: be mounted with righting strip in equally distributed 3-8 resettlement groove on tube body, the tube body is set to be in
Lantern-shaped can will block pipe and be centered in casing, keep cementing concrete ring uniform, guarantee that casing blocks quality, guarantee that oil-water well is repaired
It may normally produce for a long time again, there is significant economic benefit.
Detailed description of the invention
Attached drawing 1 is the structure chart of the embodiment of the present invention.
Attached drawing 2 is the section Local map after splitting from A-A in attached drawing 1.
Specific embodiment
The embodiment of the present invention is illustrated with reference to the accompanying drawing.
As seen from the figure, the embodiment of the present invention includes tube body 1, righting strip 2, there is through-hole 1-3, the top of tube body 1 in tube body 1
Process flat figure external screw thread 1-1, the lower part of tube body 1 processes flat figure internal screw thread 1-4, the flat figure external screw thread 1-1 with it is described
Flat figure internal screw thread 1-4 button-type is identical, and structure size is identical, and resettlement groove 1-2, the peace is arranged in the external process of tube body 1
Setting slot 1-2 is 3-8, and is evenly distributed on the outer wall of tube body 1, and the resettlement groove 1-2 points are upper slot section 1-2-1, bracket groove
Section 1-2-3, lower slot section 1-2-2, the bracket groove section 1-2-3 is dove-tail form, the width of the outward opening of the bracket groove section 1-2-3
Less than the width of righting strip 2, fluting 2-1 arranged at the top of righting strip 2, the width of righting strip 2 be less than the upper slot section 1-2-1,
The width of lower slot section 1-2-2, the width of righting strip 2 are less than the dovetail bottom width of the bracket groove section 1-2-3, upper slot section 1-2-
1 width is greater than the dovetail bottom width of the bracket groove section 1-2-3, and righting strip 2 is mounted in the resettlement groove 1-2, helps
The top of positive item 2 is in the upper slot section 1-2-1, and righting strip 2 has one section to be in the bracket groove section 1-2-3, righting
Item 2 is blocked by the bracket groove section 1-2-3, and righting strip 2 is prevented to have evagination from being detached from the resettlement groove 1-2, righting strip 2 outward
The outwardly projecting portion of section, righting strip 2 is arch, and the outwardly projecting portion of the righting strip 2 is under the bracket groove section 1-2-3, righting
The lower part of item 2 is in the lower slot section 1-2-2 of the resettlement groove 1-2, and righting strip 2 is hampered and extends out backward when can prevent from going into the well
, the outwardly projecting portion is when by external force in energy deformation retract to the lower slot section 1-2-2.
The screw thread of the upper and lower ends of tube body 1 is flat figure external screw thread, is because cannot be connected with box cupling between tube body 1, only
It can connect from beginning to end, the wall thickness of tube body 1 is again inadequate, so regular screw threads cannot be designed.
Righting strip 2 is installed upwards from the lower part of resettlement groove 1-2, and after being installed in place, the top of righting strip 2 is mounted on tool
In the fluting 2-1, the upper deformation of righting strip 2 is made to separate the dovetail that its outer dimension is greater than the bracket groove section 1-2-3
Bottom width prevents righting strip 2 from withdrawing in the bracket groove section 1-2-3.
Righting strip 2 is made of spring steel, is had elasticity, can be recovered in mounting groove when encountering casing deformation when going into the well,
That is outer diameter of the invention not will increase, and guarantee smoothly to go into the well.After righting strip 2 is installed on tube body 1, righting strip 2
The internal diameter of casing of the outwardly projecting portion slightly larger than under.
The present invention can reverse use, i.e. external screw thread is under, and internal screw thread is upper.
Resettlement groove 1-2 is four in attached drawing 1, and the righting strip 2 of installation is also 4.
The resettlement groove 1-2 is vertically to open up, and influences the partial intensities of tube body 1, but do not influence to use, still ensures that
Requirement, the resettlement groove 1-2 are not opened, and are not communicated with the through-hole 1-3, do not influence runner setting.
Claims (1)
1. a kind of righting casing blocks pipe, including tube body (1), righting strip (2), have through-hole (1-3) in tube body (1), tube body (1)
Top processes flat figure external screw thread (1-1), and the lower part of tube body (1) processes flat figure internal screw thread (1-4), the flat figure external screw thread
(1-1) is identical as flat figure internal screw thread (1-4) button-type, and structure size is identical, it is characterized in that: adding in the outside of tube body (1)
Resettlement groove (1-2) is arranged in work, and the resettlement groove (1-2) is 3-8, and is evenly distributed on the outer wall of tube body (1), described
Resettlement groove (1-2) is divided into slot section (1-2-1), bracket groove section (1-2-3), lower slot section (1-2-2), the bracket groove section (1-2-3)
For dove-tail form, the width of the outward opening of the bracket groove section (1-2-3) is less than the width of righting strip (2), the top of righting strip (2)
Have fluting (2-1), the width of righting strip (2) is less than the width of the upper slot section (1-2-1), lower slot section (1-2-2), righting strip
(2) width is less than the dovetail bottom width of the bracket groove section (1-2-3), and the width of upper slot section (1-2-1) is greater than described
The dovetail bottom width of bracket groove section (1-2-3), righting strip (2) are mounted on that the resettlement groove (1-2) is inner, righting strip (2) it is upper
The upper slot section (1-2-1) that portion is in described is inner, and righting strip (2) has one section of, righting strip inner in the bracket groove section (1-2-3)
(2) it is blocked by the bracket groove section (1-2-3), makes righting strip (2) that the resettlement groove (1-2), righting strip cannot be detached from outward
(2) there is outwardly projecting portion, the outwardly projecting portion of righting strip (2) is arch, and the outwardly projecting portion of the righting strip (2) is in the bracket groove section
Under (1-2-3), the resettlement groove (1-2) that the lower part of righting strip (2) is in described is inner, and the outwardly projecting portion is by external force
When can deformation retract it is inner to the lower slot section (1-2-2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019211939986 | 2019-07-27 | ||
| CN201921193998 | 2019-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513067A true CN110513067A (en) | 2019-11-29 |
Family
ID=68631595
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910844012.5A Pending CN110513067A (en) | 2019-07-27 | 2019-09-06 | A kind of righting casing blocks pipe |
| CN201921482019.9U Active CN210396681U (en) | 2019-07-27 | 2019-09-06 | Righting sleeve pipe pastes stifled pipe |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921482019.9U Active CN210396681U (en) | 2019-07-27 | 2019-09-06 | Righting sleeve pipe pastes stifled pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110513067A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513067A (en) * | 2019-07-27 | 2019-11-29 | 山东四通石油技术开发有限公司 | A kind of righting casing blocks pipe |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693936Y (en) * | 2003-11-28 | 2005-04-20 | 大港油田集团有限责任公司 | Elastic centralizer for sidetracked hole |
| CN101824970A (en) * | 2009-03-03 | 2010-09-08 | 李越 | Elastic rigid centralizer |
| CN202031497U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Special arciform centralizer |
| CN203948050U (en) * | 2014-06-27 | 2014-11-19 | 东营三顺石油工程技术有限责任公司 | Sleeve pipe conformal centralizer |
| CN204152453U (en) * | 2014-09-05 | 2015-02-11 | 陕西延长石油(集团)有限责任公司研究院 | Anti-blocked portion centralizer |
| CN204627451U (en) * | 2015-02-17 | 2015-09-09 | 天津钻迈科石油技术服务有限公司 | A kind of arc casing stabbing board |
| CN107130924A (en) * | 2017-06-19 | 2017-09-05 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of centralizer device of bow partially |
| CN206539318U (en) * | 2017-03-14 | 2017-10-03 | 东营市汇诚石油工程技术有限责任公司 | A kind of hydraulic pressure makes sleeve pipe device placed in the middle in the wellbore |
| CN207568512U (en) * | 2017-11-14 | 2018-07-03 | 中国石油集团渤海钻探工程有限公司 | A kind of flexible drive radial variable casing tube centralizer |
| CN210396681U (en) * | 2019-07-27 | 2020-04-24 | 山东四通石油技术开发有限公司 | Righting sleeve pipe pastes stifled pipe |
-
2019
- 2019-09-06 CN CN201910844012.5A patent/CN110513067A/en active Pending
- 2019-09-06 CN CN201921482019.9U patent/CN210396681U/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693936Y (en) * | 2003-11-28 | 2005-04-20 | 大港油田集团有限责任公司 | Elastic centralizer for sidetracked hole |
| CN101824970A (en) * | 2009-03-03 | 2010-09-08 | 李越 | Elastic rigid centralizer |
| CN202031497U (en) * | 2011-05-13 | 2011-11-09 | 中国石油天然气股份有限公司 | Special arciform centralizer |
| CN203948050U (en) * | 2014-06-27 | 2014-11-19 | 东营三顺石油工程技术有限责任公司 | Sleeve pipe conformal centralizer |
| CN204152453U (en) * | 2014-09-05 | 2015-02-11 | 陕西延长石油(集团)有限责任公司研究院 | Anti-blocked portion centralizer |
| CN204627451U (en) * | 2015-02-17 | 2015-09-09 | 天津钻迈科石油技术服务有限公司 | A kind of arc casing stabbing board |
| CN206539318U (en) * | 2017-03-14 | 2017-10-03 | 东营市汇诚石油工程技术有限责任公司 | A kind of hydraulic pressure makes sleeve pipe device placed in the middle in the wellbore |
| CN107130924A (en) * | 2017-06-19 | 2017-09-05 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of centralizer device of bow partially |
| CN207568512U (en) * | 2017-11-14 | 2018-07-03 | 中国石油集团渤海钻探工程有限公司 | A kind of flexible drive radial variable casing tube centralizer |
| CN210396681U (en) * | 2019-07-27 | 2020-04-24 | 山东四通石油技术开发有限公司 | Righting sleeve pipe pastes stifled pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210396681U (en) | 2020-04-24 |
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