CN103233696A - Two-section repairing mechanism for repairing well wall - Google Patents

Two-section repairing mechanism for repairing well wall Download PDF

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Publication number
CN103233696A
CN103233696A CN2013101525055A CN201310152505A CN103233696A CN 103233696 A CN103233696 A CN 103233696A CN 2013101525055 A CN2013101525055 A CN 2013101525055A CN 201310152505 A CN201310152505 A CN 201310152505A CN 103233696 A CN103233696 A CN 103233696A
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CN
China
Prior art keywords
expansion
repairing
tube
pipe
internal diameter
Prior art date
Application number
CN2013101525055A
Other languages
Chinese (zh)
Inventor
贺昶明
Original Assignee
成都科盛石油科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 成都科盛石油科技有限公司 filed Critical 成都科盛石油科技有限公司
Priority to CN2013101525055A priority Critical patent/CN103233696A/en
Publication of CN103233696A publication Critical patent/CN103233696A/en

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Abstract

The invention discloses a two-section repairing mechanism for repairing a well wall. The two-section repairing mechanism comprises a main pipe (1), a first expansion section, a locating pipe (6), a second expansion section and an end socket (5), wherein the main pipe (1), the first expansion section, the locating pipe (6), the second expansion section and the end socket (5) are sequentially connected from the top to the bottom. The first expansion section and the second expansion section both comprise first expansion pipes (2), connecting pipes (4) and second expansion pipes (3), and the first expansion pipes (2), the connecting pipes (4) and the second expansion pipes (3) are sequentially connected from the top to the bottom. By means of the structure, a whole structure is simple and easy to achieve. During use, the second expansion section is first used for conducting initial repairing on an inward-recessed and deformed portion of a casing pipe, then the first expansion section is used for conducting repairing again on the inward-recessed and deformed portion of the casing pipe, operation is convenient, time and labor are saved, and an inner wall of the repaired casing pipe is guaranteed to be smooth.

Description

Be used for repairing the two-part repairing mechanism of the borehole wall
Technical field
The present invention relates to the servicing machine of field of petroleum exploitation, specifically is for the two-part repairing mechanism of repairing the borehole wall.
Background technology
Casing Failure usually can occur the indent distortion because of crustal movement or misoperation, and the sleeve pipe of indent distortion can't enter in the well oil exploration equipment, and this can have influence on the ordinary production of oil-water well, even may cause oil-water well to stop production.In order to improve the utilization rate of oil-water well, increase the output of oil, sleeve pipe reparation to the indent distortion seems particularly important, yet oil-water well has certain degree of depth, the sleeve pipe reparation difficulty of indent distortion is big, people's operating process when repairing the sleeve pipe of indent now is loaded down with trivial details, wastes time and energy, and the cost height.
Summary of the invention
The objective of the invention is to solve the problem that operating process when repairing indent deformed casing in the oil-water well now is loaded down with trivial details, waste time and energy, provide a kind of and be convenient to realize, the two-part repairing mechanism that is used for repairing the borehole wall of simple operation.
Purpose of the present invention is achieved through the following technical solutions for the two-part repairing mechanism of repairing the borehole wall, comprise the person in charge, first expansion arc, positioning pipe, second expansion arc and the end socket that connect in turn from top to bottom, described first expansion arc includes first expansion tube, tube connector and second expansion tube that is connected in turn from top to bottom with second expansion arc.Place in the oil-water well when the present invention uses, earlier second expansion arc is placed on the position of sleeve pipe indent distortion, in the present invention, add pressure fluid, at this moment, first expansion tube of second expansion arc and second expansion tube expand, tube connector is indeformable, and the present invention pushes the sleeve pipe of indent distortion by the expansion of first expansion tube and second expansion tube, and then the sleeve pipe of finishing the indent distortion carries out elementary reparation.Then, reduce the position of the present invention in oil-water well, first expansion arc is placed the position of sleeve pipe indent distortion, feed pressure fluid, first expansion tube and the expansion of second expansion tube by first expansion arc are repaired again to the position of sleeve pipe indent distortion, so, the present invention pushes the sleeve pipe of indent distortion by the expansion of expansion tube, and then finishes the reparation to the sleeve pipe of indent distortion.If the position of sleeve pipe indent distortion is less, when first expansion arc or second expansion arc were placed the position of sleeve pipe indent distortion, first expansion tube or second expansion tube got final product over against the position of indent distortion.
Be provided with the dividing plate that is connected with its inner wall sealing in the described positioning pipe, described dividing plate is connected with the feed tube that runs through its upper and lower end face.The present invention separates first expansion arc and second expansion arc by dividing plate, and can independently add pressure fluid to second expansion arc by feed tube, so, and the control of being more convenient for when the present invention is used.
Described end socket comprises the following shrouding of guide pipe and sealing guide pipe lower ending opening, and second expansion tube of described second expansion arc is connected with end socket by being connected on the guide pipe.The present invention makes second expansion arc to down having a transition conduit between the shrouding under the effect of guide pipe, rather than directly seals the second expansion tube lower ending opening of second expansion arc, so, can guarantee the firm of lower end structure of the present invention behind the injection pressure liquid.
Because the position of sleeve pipe indent distortion makes the inside irregular contraction of sleeve pipe, for the ease of the position of end socket by the indent distortion, in order to guarantee that guide pipe passes the position that expansion arc behind the position of sleeve pipe indent distortion can be placed in the distortion of sleeve pipe indent, the internal diameter of described guide pipe is less than the internal diameter of being responsible for, and the internal diameter of described tube connector is less than the internal diameter of guide pipe.
In order to guarantee that first expansion arc can be placed in the position of sleeve pipe indent distortion, the internal diameter of described positioning pipe is being responsible between internal diameter and the guide pipe internal diameter.
Because bellows is convenient to draw materials, and have good telescopicing performance, as preferably, described first expansion tube and second expansion tube are bellows.
Compared with prior art, the present invention has following beneficial effect: (1) when the present invention uses places expansion tube sleeve pipe indent deformation place, and make expansion tube expand to finish reparation to sleeve pipe indent deformation place by adding pressure fluid, the integrated operation process is convenient, with low cost, time saving and energy saving.
(2) the present invention includes first expansion arc and second expansion arc, when using, earlier second expansion arc is placed the position of sleeve pipe indent distortion to carry out elementary reparation, again first expansion arc is placed the position of sleeve pipe indent distortion to repair again, by twice reparation, can improve repairing quality.
When (3) first expansion arc of the present invention or second expansion arc were repaired sleeve pipe, tube connector was indeformable, can prevent that so stress occurring when sleeve pipe to indent distortion from carrying out elementary reparation concentrates.
Description of drawings
Fig. 1 is structural representation of the present invention.
The corresponding name of Reference numeral is called in the accompanying drawing: 1, be responsible for 2, first expansion tube, 3, second expansion tube, 4, tube connector, 5, end socket, 6, positioning pipe, 7, dividing plate, 8, feed tube, 51, guide pipe, 52, shrouding down.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, be used for repairing the two-part repairing mechanism of the borehole wall, comprise the person in charge 1, first expansion arc, positioning pipe 6, second expansion arc and the end socket 5 that connect in turn from top to bottom, wherein, be responsible for 1 internal diameter and be slightly less than casing inner diameter, and guarantee that the person in charge 1 does not have friction when embedding in the sleeve pipe.Be responsible for 1, first expansion arc, positioning pipe 6, second expansion arc and the end socket 5 whole bodys that constitute a upper end open, following end closure.First expansion arc includes first expansion tube 2, tube connector 4 and second expansion tube, 3, the first expansion tubes 2 and second expansion tube 3 that are connected in turn from top to bottom with second expansion arc and all preferably adopts bellows.Be provided with the dividing plate 7 that is connected with its inner wall sealing in the positioning pipe 6, dividing plate 7 is connected with the feed tube 8 that runs through its upper and lower end face.As preferably, the person in charge 1 in the present embodiment, tube connector 4 and positioning pipe 6 all preferably adopt stainless steel material to make.
When present embodiment is used, earlier second expansion arc is placed the position of sleeve pipe indent distortion, and pass through feed tube 6 to second expansion arc adding pressure fluid, elementary reparation is carried out to sleeve pipe in the position of second expansion arc squeezing bushing indent distortion under the effect of pressure fluid, reduce present embodiment again in the position of oil-water well, first expansion arc is placed the position of sleeve pipe indent distortion, add pressure fluid to first expansion arc, repair again to sleeve pipe at the position of first expansion arc squeezing bushing indent distortion under the effect of pressure fluid, and the active force assurance internal surface of sleeve pipe recovery of setting extruding is level and smooth, and then finishes the reparation to sleeve pipe.
Embodiment 2:
The main distinction of present embodiment and embodiment 1 is, present embodiment has carried out further restriction to the structure of end socket 5 among the embodiment 1: the end socket 5 of present embodiment comprises that guide pipe 51 reaches shrouding 52 down, the lower ending opening of following shrouding 52 sealing guide pipes 51, second expansion tube 3 of second expansion arc is connected with end socket 5 by being connected on the guide pipe 51.Wherein, guide pipe 51 and following shrouding 52 all preferably adopt stainless steel material to make.For the ease of second expansion arc being placed the position of sleeve pipe indent distortion, the internal diameter of guide pipe 51 is less than the internal diameter of being responsible for 1, and the internal diameter of tube connector 4 is less than the internal diameter of guide pipe 51; For the ease of first expansion arc being placed the position of sleeve pipe indent distortion, the internal diameter of positioning pipe 6 is being responsible between 1 internal diameter and guide pipe 51 internal diameters.
Above content be in conjunction with concrete preferred embodiment to further describing that the present invention does, can not assert that the specific embodiment of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, not breaking away from other embodiments that draw under the technical scheme of the present invention, all should be included in protection scope of the present invention.

Claims (6)

1. be used for repairing the two-part repairing mechanism of the borehole wall, it is characterized in that: comprise the person in charge (1), first expansion arc, positioning pipe (6), second expansion arc and the end socket (5) that connect in turn from top to bottom, described first expansion arc includes first expansion tube (2), tube connector (4) and second expansion tube (3) that is connected in turn from top to bottom with second expansion arc.
2. according to claim 1 for the two-part repairing mechanism of repairing the borehole wall, it is characterized in that: be provided with the dividing plate (7) that is connected with its inner wall sealing in the described positioning pipe (6), described dividing plate (7) is connected with the feed tube (8) that runs through its upper and lower end face.
3. according to claim 1 for the two-part repairing mechanism of repairing the borehole wall, it is characterized in that: described end socket (5) comprises the following shrouding (52) of guide pipe (51) and sealing guide pipe (51) lower ending opening, and second expansion tube (3) of described second expansion arc upward is connected with end socket (5) by being connected guide pipe (51).
4. according to claim 3 for the two-part repairing mechanism of repairing the borehole wall, it is characterized in that: the internal diameter of described guide pipe (51) is less than the internal diameter of being responsible for (1), and the internal diameter of described tube connector (4) is less than the internal diameter of guide pipe (51).
5. according to claim 4 for the two-part repairing mechanism of repairing the borehole wall, it is characterized in that: the internal diameter of described positioning pipe (6) is positioned between the person in charge's (1) internal diameter and guide pipe (51) internal diameter.
6. according to any described two-part repairing mechanism for the reparation borehole wall in the claim 1~5, it is characterized in that: described first expansion tube (2) and second expansion tube (3) are bellows.
CN2013101525055A 2013-04-28 2013-04-28 Two-section repairing mechanism for repairing well wall CN103233696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101525055A CN103233696A (en) 2013-04-28 2013-04-28 Two-section repairing mechanism for repairing well wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101525055A CN103233696A (en) 2013-04-28 2013-04-28 Two-section repairing mechanism for repairing well wall

Publications (1)

Publication Number Publication Date
CN103233696A true CN103233696A (en) 2013-08-07

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Application Number Title Priority Date Filing Date
CN2013101525055A CN103233696A (en) 2013-04-28 2013-04-28 Two-section repairing mechanism for repairing well wall

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030037932A1 (en) * 2001-08-27 2003-02-27 Brett Guillory Drillable inflatable packer & methods of use
CA2365960C (en) * 1999-04-09 2007-08-07 Shell Internationale Research Maatschappij B.V. Method of selective plastic expansion of sections of a tubing
CN101343991A (en) * 2008-08-13 2009-01-14 中国石油天然气股份有限公司 Single bore diameter well completion structure and well completion method
US20100257913A1 (en) * 2009-04-13 2010-10-14 Enventure Global Technology, Llc Resilient Anchor
CN202348194U (en) * 2011-12-19 2012-07-25 东北石油大学 Impact type casing damage pipe shaper
CN102635314A (en) * 2012-04-14 2012-08-15 王强 Connecting method for expandable corrugated pipe
CN202391366U (en) * 2011-11-29 2012-08-22 潍坊市宇宏石油机械有限公司 Downhole positioning device with expansion pipe for petroleum drilling production
CN202531133U (en) * 2012-04-05 2012-11-14 中国石油天然气股份有限公司 Water plugging technological tubular column for sealing middle layer and exploiting two ends of oil well
CN202544757U (en) * 2011-12-26 2012-11-21 中国石油集团长城钻探工程有限公司 High expansion ratio and low expansion ratio combined single-hole diameter expansion pipe pillar
CN202659163U (en) * 2012-06-11 2013-01-09 潍坊市宇宏石油机械有限公司 Well completion well bore structure of single-inner diameter multilevel casing pipe
CN202659194U (en) * 2012-06-15 2013-01-09 潍坊市宇宏石油机械有限公司 Novel well wall restoring device with combined sleeve and corrugated pipe
CN203201510U (en) * 2013-04-28 2013-09-18 成都科盛石油科技有限公司 Well wall repairing mechanism preventing stress concentration

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2365960C (en) * 1999-04-09 2007-08-07 Shell Internationale Research Maatschappij B.V. Method of selective plastic expansion of sections of a tubing
US20030037932A1 (en) * 2001-08-27 2003-02-27 Brett Guillory Drillable inflatable packer & methods of use
CN101343991A (en) * 2008-08-13 2009-01-14 中国石油天然气股份有限公司 Single bore diameter well completion structure and well completion method
US20100257913A1 (en) * 2009-04-13 2010-10-14 Enventure Global Technology, Llc Resilient Anchor
CN202391366U (en) * 2011-11-29 2012-08-22 潍坊市宇宏石油机械有限公司 Downhole positioning device with expansion pipe for petroleum drilling production
CN202348194U (en) * 2011-12-19 2012-07-25 东北石油大学 Impact type casing damage pipe shaper
CN202544757U (en) * 2011-12-26 2012-11-21 中国石油集团长城钻探工程有限公司 High expansion ratio and low expansion ratio combined single-hole diameter expansion pipe pillar
CN202531133U (en) * 2012-04-05 2012-11-14 中国石油天然气股份有限公司 Water plugging technological tubular column for sealing middle layer and exploiting two ends of oil well
CN102635314A (en) * 2012-04-14 2012-08-15 王强 Connecting method for expandable corrugated pipe
CN202659163U (en) * 2012-06-11 2013-01-09 潍坊市宇宏石油机械有限公司 Well completion well bore structure of single-inner diameter multilevel casing pipe
CN202659194U (en) * 2012-06-15 2013-01-09 潍坊市宇宏石油机械有限公司 Novel well wall restoring device with combined sleeve and corrugated pipe
CN203201510U (en) * 2013-04-28 2013-09-18 成都科盛石油科技有限公司 Well wall repairing mechanism preventing stress concentration

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Application publication date: 20130807