EP3546696A1 - Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren - Google Patents

Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren Download PDF

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Publication number
EP3546696A1
EP3546696A1 EP18163873.5A EP18163873A EP3546696A1 EP 3546696 A1 EP3546696 A1 EP 3546696A1 EP 18163873 A EP18163873 A EP 18163873A EP 3546696 A1 EP3546696 A1 EP 3546696A1
Authority
EP
European Patent Office
Prior art keywords
string
expandable
connectors
slotted tubulars
slotted
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.)
Withdrawn
Application number
EP18163873.5A
Other languages
English (en)
French (fr)
Inventor
Antonius Leonardus Maria Wubben
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP18163873.5A priority Critical patent/EP3546696A1/de
Priority to PCT/EP2019/057411 priority patent/WO2019185532A1/en
Publication of EP3546696A1 publication Critical patent/EP3546696A1/de
Withdrawn legal-status Critical Current

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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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/108—Expandable screens or perforated liners
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Definitions

  • the present invention relates to a string of expandable slotted tubulars. In another aspect, the present invention relates to a method of expanding a string of slotted tubulars.
  • Expandable slotted tubing has become a widely used technique in the industry of oil and gas exploration and production, as a means to complete an uncased section of a borehole in an earth formation.
  • the tubing consists lengths of pipe made up into a string.
  • the lengths of pipe have been provided with specific patterns of a large number of slots. These slots are typically machined in the pipe walls in longitudinal direction in staggered rows. Pipes with such slots are relatively easy to expand radially outwardly by running a mandrel or the like through the pipes.
  • the invention provides a string of expandable slotted tubulars comprising at least two tubular lengths each comprising a first longitudinal end, a second longitudinal end, and an expandable middle section connecting the first longitudinal end and the second longitudinal end, wherein the expandable middle section is provided with a pattern of slotted perforations; and wherein the first and second longitudinal ends are respectively provided with first and second connectors which are not expandable, and wherein the first connector of one of the at least two tubular lengths is connected to the second connector of adjacent one of the at least two tubular lengths thereby forming part of a string of expandable slotted tubulars.
  • the invention provides a method of expanding a string of slotted tubulars, comprising:
  • a string of expandable slotted tubulars is made of at least two tubular lengths.
  • Each of the tubular lengths has a first longitudinal end, a second longitudinal end, and an expandable middle section connecting the longitudinal ends.
  • the expandable middle section is provided with a pattern of slotted perforations, and can be expanded.
  • the first and second longitudinal ends are respectively provided with first and second connectors, which, in contrast to previously employed expandable slotted tubular strings, are non-expandable connectors.
  • Non-expandable connectors in this context means that, while an original diametrical size of the non-expandable connectors is preserved when expanding the string of expandable slotted connectors. After installation of the string, the expandable middle sections of the slotted tubulars have been expanded to a larger diameter as compared to an original diameter, while the original diametrical size of the non-expandable connectors is preserved.
  • first and second connectors are unslotted or at least unperforated.
  • the connectors are blocking flow of production fluids, and thus the lack of physical contact between the EST and the borehole wall at the connectors is not adversely affecting the borehole stability.
  • Figure 1 schematically shows a string 10 of expandable slotted tubulars run in a borehole 8 in the earth.
  • the string 10 comprises at least two tubular lengths 12 joined together.
  • Each of the tubular lengths 12 comprise a first longitudinal end 14, a second longitudinal end, and an expandable middle section 18 which connects the first longitudinal end 14 and the second longitudinal end 16.
  • the expandable middle section is provided with a pattern of slotted perforations 20 (for reasons of clarity, not all perforations are individually identified in the drawing).
  • the first and second longitudinal ends (14,16) are respectively provided with first and second connectors which are not expandable.
  • Such connectors may be standard treaded pipe or casing joints commonly used in the oil field industry.
  • the first and second connectors (14,16) may be unslotted and/or unperforated, such as standard joints are.
  • the first and second connectors (14,16) are preferably threaded connectors, but alternatively the first and second connectors may be welded connectors.
  • the first connector 14 of one of the at least two tubular lengths is connected to the second connector 16 of an adjacent one of the at least two tubular lengths.
  • the string 10 of expandable slotted tubulars In the assembled configuration, the expandable middle sections 18 of respective adjacent tubular lengths 12 are separated from each other by said connectors (14,16).
  • the string 10 of slotted tubulars may be expanded.
  • An expansion operation may include moving a flexible expansion device in a longitudinal direction through the string 10 of expandable slotted tubulars, thereby expanding the respective middle sections 18 while leaving the connectors (14,16) unexpanded.
  • the end result is schematically illustrated in Fig. 2 .
  • the slotted perforations 20 from Fig. 1 have dilated into deformed slots 20', as described in for example US patent 5,366,012 . (Again, for clarity reasons, not all deformed slots 20' have been marked in the figure).
  • the moving of the flexible expansion device through the string 10 of expandable slotted tubulars may be accomplished by exerting a translation force to the expansion device, which results in the expansion device applying a stress on the string of slotted tubulars in a contact area between the expansion device and the string of slotted tubulars.
  • the flexible expansion device may be a force-limited collapsible cone, sometimes referred to as a compliant cone. Non-limiting examples are shown in US patents 7,360,604 7,681,636 ; 8,561,690 ; and US pre-grant publication US 2016/0362968 .
  • the stress is limited to a predetermined maximum stress, by (partly) collapsing of the flexible expansion device when the predetermined maximum stress is reached.
  • the predetermined maximum stress is higher than a first yield stress in the middle sections of the string of slotted tubulars and lower than a second yield stress in the connectors.
  • the yield stress is a material property which defines the stress at which a material begins to deform plastically. Once the material is exposed to its yield stress, some fraction of deformation will be permanent and non-reversible.
  • the string of slotted tubulars may be run into a borehole in the earth prior to expanding. At least part of the string of slotted tubulars may be located in an uncased part of the borehole, in order to provide mechanical support to the exposed formation layers. If desired, the slotted tubulars may be provided with expandable well screens, such as those disclosed in US patents 5,901,789 and 6,315,040 or similar.
EP18163873.5A 2018-03-26 2018-03-26 Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren Withdrawn EP3546696A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18163873.5A EP3546696A1 (de) 2018-03-26 2018-03-26 Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren
PCT/EP2019/057411 WO2019185532A1 (en) 2018-03-26 2019-03-25 String of expandable slotted tubulars and method of expanding a string of slotted tubulars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18163873.5A EP3546696A1 (de) 2018-03-26 2018-03-26 Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren

Publications (1)

Publication Number Publication Date
EP3546696A1 true EP3546696A1 (de) 2019-10-02

Family

ID=61768185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18163873.5A Withdrawn EP3546696A1 (de) 2018-03-26 2018-03-26 Reihe von expandierbaren geschlitzten rohren und verfahren zum aufweiten einer reihe von geschlitzten rohren

Country Status (2)

Country Link
EP (1) EP3546696A1 (de)
WO (1) WO2019185532A1 (de)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712376A (en) * 1971-07-26 1973-01-23 Gearhart Owen Industries Conduit liner for wellbore and method and apparatus for setting same
US5366012A (en) 1992-06-09 1994-11-22 Shell Oil Company Method of completing an uncased section of a borehole
CA2221789A1 (en) * 1995-05-24 1996-11-28 Wilhelmus Christianus Maria Lohbeck Connector assembly for an expandable slotted pipe
US5901789A (en) 1995-11-08 1999-05-11 Shell Oil Company Deformable well screen
US5924745A (en) 1995-05-24 1999-07-20 Petroline Wellsystems Limited Connector assembly for an expandable slotted pipe
US6315040B1 (en) 1998-05-01 2001-11-13 Shell Oil Company Expandable well screen
GB2433278A (en) * 2005-12-14 2007-06-20 Weatherford Lamb Expanding multiple tubular portions
US7360604B2 (en) 2003-04-25 2008-04-22 Shell Oil Company Expander system for stepwise expansion of a tubular element
GB2463400A (en) * 2004-09-30 2010-03-17 Weatherford Lamb Expanding three portions of a tubular string separately
US7681636B2 (en) 2005-08-05 2010-03-23 Shell Oil Company Pipe expander
US8561690B2 (en) 2011-03-04 2013-10-22 Halliburton Energy Services, Inc. Expansion cone assembly for setting a liner hanger in a wellbore casing
US20160362968A1 (en) 2014-02-27 2016-12-15 Shell Oil Company Method and system for lining a tubular

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712376A (en) * 1971-07-26 1973-01-23 Gearhart Owen Industries Conduit liner for wellbore and method and apparatus for setting same
US5366012A (en) 1992-06-09 1994-11-22 Shell Oil Company Method of completing an uncased section of a borehole
CA2221789A1 (en) * 1995-05-24 1996-11-28 Wilhelmus Christianus Maria Lohbeck Connector assembly for an expandable slotted pipe
US5924745A (en) 1995-05-24 1999-07-20 Petroline Wellsystems Limited Connector assembly for an expandable slotted pipe
US5901789A (en) 1995-11-08 1999-05-11 Shell Oil Company Deformable well screen
US6315040B1 (en) 1998-05-01 2001-11-13 Shell Oil Company Expandable well screen
US7360604B2 (en) 2003-04-25 2008-04-22 Shell Oil Company Expander system for stepwise expansion of a tubular element
GB2463400A (en) * 2004-09-30 2010-03-17 Weatherford Lamb Expanding three portions of a tubular string separately
US7681636B2 (en) 2005-08-05 2010-03-23 Shell Oil Company Pipe expander
GB2433278A (en) * 2005-12-14 2007-06-20 Weatherford Lamb Expanding multiple tubular portions
US8561690B2 (en) 2011-03-04 2013-10-22 Halliburton Energy Services, Inc. Expansion cone assembly for setting a liner hanger in a wellbore casing
US20160362968A1 (en) 2014-02-27 2016-12-15 Shell Oil Company Method and system for lining a tubular

Also Published As

Publication number Publication date
WO2019185532A1 (en) 2019-10-03

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