WO2017071709A3 - Methods and apparatus for forming an offshore well - Google Patents

Methods and apparatus for forming an offshore well Download PDF

Info

Publication number
WO2017071709A3
WO2017071709A3 PCT/DK2016/000040 DK2016000040W WO2017071709A3 WO 2017071709 A3 WO2017071709 A3 WO 2017071709A3 DK 2016000040 W DK2016000040 W DK 2016000040W WO 2017071709 A3 WO2017071709 A3 WO 2017071709A3
Authority
WO
WIPO (PCT)
Prior art keywords
bending stiffness
cement
annulus
well portion
well
Prior art date
Application number
PCT/DK2016/000040
Other languages
French (fr)
Other versions
WO2017071709A2 (en
Inventor
Michael Kannegaard
Hicham CHAJAI
Original Assignee
Maersk Drilling A/S
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
Priority claimed from GBGB1522856.2A external-priority patent/GB201522856D0/en
Priority claimed from GBGB1522857.0A external-priority patent/GB201522857D0/en
Priority claimed from GBGB1522858.8A external-priority patent/GB201522858D0/en
Priority claimed from GBGB1601175.1A external-priority patent/GB201601175D0/en
Priority claimed from PCT/DK2016/000036 external-priority patent/WO2017071707A1/en
Application filed by Maersk Drilling A/S filed Critical Maersk Drilling A/S
Priority to EP16815706.3A priority Critical patent/EP3368721A2/en
Priority to US15/771,710 priority patent/US20190194895A1/en
Publication of WO2017071709A2 publication Critical patent/WO2017071709A2/en
Publication of WO2017071709A3 publication Critical patent/WO2017071709A3/en

Links

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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • 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
    • E21B17/01—Risers
    • E21B17/017—Bend restrictors for limiting stress on risers
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/043—Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
    • E21B33/143—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes for underwater installations
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

A method for forming an offshore well comprises forming a well structure (1) which includes a lower well portion extending below a seabed and an upper well portion (2) extending upwardly between the seabed (18) and a terminating upper end (3) of the well structure, wherein the well structure comprises a plurality of concentrically arranged tubular strings (22) and at least one annulus (48) defined therebetween. The method includes steps for minimising the bending stiffness of the upper well portion. In one example minimising the bending stiffness of the upper well portion may comprise partially filling at least one annulus with cement (52) to a height which: is intermediate the seabed and the terminating upper end of the well structure.., In another example minimising the bending stiffness of the upper well portion may comprise providing a cement disruptor within at least one annulus and locating cement within said at least one annulus to define a cement sheath, wherein the cement disruptor, for example sleeve (122), reduces resistance of at least a portion of the cement sheath to bending of the upper well portion. In a further example minimising the bending stiffness of the upper well portion may comprise locating a flexible material within at least one annulus; and In a further example minimising the bending stiffness of the upper well portion may comprise varying the bending stiffness along at least one of the plurality of tubular strings.
PCT/DK2016/000040 2015-10-29 2016-10-31 Methods and apparatus for forming an offshore well WO2017071709A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16815706.3A EP3368721A2 (en) 2015-10-29 2016-10-31 Methods and apparatus for forming an offshore well
US15/771,710 US20190194895A1 (en) 2015-10-29 2016-10-31 Methods and apparatus for forming an offshore well

Applications Claiming Priority (28)

Application Number Priority Date Filing Date Title
DKPA201500668 2015-10-29
DKPA201500668 2015-10-29
GBGB1522856.2A GB201522856D0 (en) 2015-12-23 2015-12-23 Offshore drilling and a configurable support structure for such
GB1522857.0 2015-12-23
GBGB1522857.0A GB201522857D0 (en) 2015-12-23 2015-12-23 Offshore drilling and a configurable support structure and support and/or guide element for such
GB1522856.2 2015-12-23
GB1522858.8 2015-12-24
GBGB1522858.8A GB201522858D0 (en) 2015-12-24 2015-12-24 Improved flexibility of a conductor of an offshore sur-face hydrocardon well
GB1601175.1 2016-01-21
GBGB1601175.1A GB201601175D0 (en) 2016-01-21 2016-01-21 Offshore unit
GB201607105 2016-04-23
GB1607105.2 2016-04-23
GB1607102.9 2016-04-23
GB201607103 2016-04-23
GB201607101 2016-04-23
GB1607101.1 2016-04-23
GB201607102 2016-04-23
GB1607103.7 2016-04-23
GB1607181.3 2016-04-25
GB201607183 2016-04-25
GB201607180 2016-04-25
GB201607182 2016-04-25
GB1607180.5 2016-04-25
GB1607183.9 2016-04-25
GB1607182.1 2016-04-25
GB201607181 2016-04-25
DKPCT/DK2016/000036 2016-10-06
PCT/DK2016/000036 WO2017071707A1 (en) 2015-10-29 2016-10-06 Offshore drilling and a configurable support structure for the same

Publications (2)

Publication Number Publication Date
WO2017071709A2 WO2017071709A2 (en) 2017-05-04
WO2017071709A3 true WO2017071709A3 (en) 2017-06-15

Family

ID=58631129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2016/000040 WO2017071709A2 (en) 2015-10-29 2016-10-31 Methods and apparatus for forming an offshore well

Country Status (3)

Country Link
US (1) US20190194895A1 (en)
EP (1) EP3368721A2 (en)
WO (1) WO2017071709A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10907316B2 (en) * 2015-10-29 2021-02-02 Maersk Drilling A/S Offshore apparatus and method
CN110185409B (en) * 2019-07-09 2023-12-12 广州海洋地质调查局 Separated underwater wellhead suction anchor for efficient processing and transportation
GB2596534A (en) * 2020-06-29 2022-01-05 Aker Solutions As Wellhead assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508609A (en) * 1967-09-19 1970-04-28 Rockwell Mfg Co Washout joint
US4703813A (en) * 1986-03-31 1987-11-03 Shell Offshore Inc. Cementing portion of conductor string
US6386291B1 (en) * 2000-10-12 2002-05-14 David E. Short Subsea wellhead system and method for drilling shallow water flow formations
WO2009093911A1 (en) * 2008-01-25 2009-07-30 Vasshella As A device in a combined wellhead/pipe string
US20100116504A1 (en) * 2008-11-11 2010-05-13 Corey Eugene Hoffman Casing annulus tester for diagnostics and testing of a wellbore
EP2363573A1 (en) * 2010-02-24 2011-09-07 Wild Well Control, Inc. Sealant for forming durable plugs in wells and methods for completing or abandoning wells
WO2014210017A2 (en) * 2013-06-24 2014-12-31 Bp Corporation North America, Inc. Systems and methods for bracing subsea wellheads to enhance the fatigue resistance of subsea wellheads and primary conductors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666009A (en) * 1970-01-23 1972-05-30 Gulf Oil Corp Method and apparatus for shutting in offshore wells
US5513929A (en) * 1994-08-11 1996-05-07 Mcdermott International, Inc. Fixed offshore platform structures, using small diameter, tensioned, well casing tiebacks
WO2009134125A1 (en) * 2008-04-29 2009-11-05 Itrec B.V. Floating offshore structure for hydrocarbon production
WO2013036915A2 (en) * 2011-09-09 2013-03-14 Horton Wison Deepwater, Inc. Conductor bend restrictor
WO2013036932A1 (en) * 2011-09-09 2013-03-14 Horton Wison Deepwater, Inc. Helical bend restrictor
SG10201602165RA (en) * 2011-10-05 2016-04-28 Seahorse Equip Corp Method and apparatus for drilling multiple subsea wells from an offshore platform at a single site
WO2013057166A2 (en) * 2011-10-18 2013-04-25 Total Sa A floating offshore facility and a method for drilling a well
NO341732B1 (en) * 2014-02-18 2018-01-15 Neodrill As Device and method for stabilizing a wellhead

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508609A (en) * 1967-09-19 1970-04-28 Rockwell Mfg Co Washout joint
US4703813A (en) * 1986-03-31 1987-11-03 Shell Offshore Inc. Cementing portion of conductor string
US6386291B1 (en) * 2000-10-12 2002-05-14 David E. Short Subsea wellhead system and method for drilling shallow water flow formations
WO2009093911A1 (en) * 2008-01-25 2009-07-30 Vasshella As A device in a combined wellhead/pipe string
US20100116504A1 (en) * 2008-11-11 2010-05-13 Corey Eugene Hoffman Casing annulus tester for diagnostics and testing of a wellbore
EP2363573A1 (en) * 2010-02-24 2011-09-07 Wild Well Control, Inc. Sealant for forming durable plugs in wells and methods for completing or abandoning wells
WO2014210017A2 (en) * 2013-06-24 2014-12-31 Bp Corporation North America, Inc. Systems and methods for bracing subsea wellheads to enhance the fatigue resistance of subsea wellheads and primary conductors

Also Published As

Publication number Publication date
WO2017071709A2 (en) 2017-05-04
EP3368721A2 (en) 2018-09-05
US20190194895A1 (en) 2019-06-27

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