GB2338738A - Apparatus for use in drilling operations - Google Patents

Apparatus for use in drilling operations

Info

Publication number
GB2338738A
GB2338738A GB9920347A GB9920347A GB2338738A GB 2338738 A GB2338738 A GB 2338738A GB 9920347 A GB9920347 A GB 9920347A GB 9920347 A GB9920347 A GB 9920347A GB 2338738 A GB2338738 A GB 2338738A
Authority
GB
United Kingdom
Prior art keywords
annulus
safety valve
tree
drilling
drill support
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Withdrawn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
GB9920347A
Other versions
GB9920347D0 (en
Inventor
David George Knowles
John Milne
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.)
OCRE
Original Assignee
OCRE
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 OCRE filed Critical OCRE
Publication of GB9920347D0 publication Critical patent/GB9920347D0/en
Publication of GB2338738A publication Critical patent/GB2338738A/en
Withdrawn legal-status Critical Current

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
    • 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
    • E21B17/1007—Wear protectors; Centralising devices, e.g. stabilisers for the internal surface of a pipe, e.g. wear bushings 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
    • E21B33/02—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

Abstract

A method of facilitating fluid circulation may be utilised during a drilling operation in which drilling fluid is circulated downwardly through a small diameter drill support, such as coiled tubing (22), and upwardly through an annulus (44) between a lined bore wall (38) and the drill support (22). The method comprises providing a sleeve (48) between the bore wall (38) and the drill support (22) to reduce the annulus flow area to facilitate maintaining the drilling fluid flow speed in the annulus at a level sufficient to maintain entrainment of drilling cuttings. Further provided is a method of protecting a well head tree and safety valve from erosion by drilling fluid by hanging a protection sleeve above the tree (or safety valve) and sealing above and below the tree (or safety valve).
GB9920347A 1997-02-28 1998-03-02 Apparatus for use in drilling operations Withdrawn GB2338738A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9704213.9A GB9704213D0 (en) 1997-02-28 1997-02-28 Drilling apparatus
PCT/GB1998/000634 WO1998038411A2 (en) 1997-02-28 1998-03-02 Apparatus for use in drilling operations

Publications (2)

Publication Number Publication Date
GB9920347D0 GB9920347D0 (en) 1999-11-03
GB2338738A true GB2338738A (en) 1999-12-29

Family

ID=10808502

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9704213.9A Pending GB9704213D0 (en) 1997-02-28 1997-02-28 Drilling apparatus
GB9920347A Withdrawn GB2338738A (en) 1997-02-28 1998-03-02 Apparatus for use in drilling operations

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9704213.9A Pending GB9704213D0 (en) 1997-02-28 1997-02-28 Drilling apparatus

Country Status (3)

Country Link
AU (1) AU6736498A (en)
GB (2) GB9704213D0 (en)
WO (1) WO1998038411A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591913B2 (en) * 2001-12-12 2003-07-15 Oceaneering International, Inc. System and method for lessening impact on Christmas trees during downhole operations involving Christmas trees
RU2358088C2 (en) * 2004-01-27 2009-06-10 Бейкер Хьюз Инкорпорейтед Slip bushing with turn fixation for performing drilling operations and completion of well via pipe string
US20080083566A1 (en) * 2006-10-04 2008-04-10 George Alexander Burnett Reclamation of components of wellbore cuttings material
US9073104B2 (en) 2008-08-14 2015-07-07 National Oilwell Varco, L.P. Drill cuttings treatment systems
US9051787B2 (en) * 2012-04-29 2015-06-09 Baker Hughes Incorporated Quick connect coupling for cementing operations and the like
US9643111B2 (en) 2013-03-08 2017-05-09 National Oilwell Varco, L.P. Vector maximizing screen
CN104948129B (en) * 2015-07-02 2017-11-03 淮南矿业(集团)有限责任公司 Hole sealing tube tripping in device
CN108776075B (en) * 2018-07-10 2021-01-08 长江大学 Testing device and testing method for simulating erosion wear of underground drill rod
CN111075362B (en) * 2018-10-22 2023-08-04 中国石油化工股份有限公司 Quick drilling plug pipe column and method

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247914A (en) * 1962-10-02 1966-04-26 Gray Tool Co Completion of wells
US3648786A (en) * 1971-04-12 1972-03-14 Baker Oil Tools Inc Subsurface fluid pressure reduction drilling apparatus
US3664423A (en) * 1970-03-23 1972-05-23 Gray Tool Co Tie-back system for underwater completion
US4060140A (en) * 1975-10-22 1977-11-29 Halliburton Company Method and apparatus for preventing debris build-up in underwater oil wells
US4231436A (en) * 1978-02-21 1980-11-04 Standard Oil Company (Indiana) Marine riser insert sleeves
US4241786A (en) * 1978-05-02 1980-12-30 Bullen Ronald S Well tree saver
US4496012A (en) * 1983-05-02 1985-01-29 Mobil Oil Corporation Method for improving cuttings transport in deviated wells
US4507842A (en) * 1983-08-19 1985-04-02 John Werner Method of sealing and protecting a plastic lined pipe joint
US4754819A (en) * 1987-03-11 1988-07-05 Mobil Oil Corporation Method for improving cuttings transport during the rotary drilling of a wellbore
US5012865A (en) * 1989-09-26 1991-05-07 Mcleod Roderick D Annular and concentric flow wellhead isolation tool
US5018575A (en) * 1988-10-25 1991-05-28 Mandrels, Inc. Apparatus for reducing abrasion and corrosion in mandrels
GB2267920A (en) * 1992-06-17 1993-12-22 Petroleum Eng Services Improvements in or relating to well-head structures
US5311955A (en) * 1991-05-06 1994-05-17 Wave Tec Ges.M.B.H. Installation for cleaning the zone near the drill hole
US5396956A (en) * 1992-12-18 1995-03-14 Cherewyk; Bruce Well head isolation tool sealing nipple testing apparatus and method of pressure testing isolation tool sealing nipple seals when in position on a well

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247914A (en) * 1962-10-02 1966-04-26 Gray Tool Co Completion of wells
US3664423A (en) * 1970-03-23 1972-05-23 Gray Tool Co Tie-back system for underwater completion
US3648786A (en) * 1971-04-12 1972-03-14 Baker Oil Tools Inc Subsurface fluid pressure reduction drilling apparatus
US4060140A (en) * 1975-10-22 1977-11-29 Halliburton Company Method and apparatus for preventing debris build-up in underwater oil wells
US4231436A (en) * 1978-02-21 1980-11-04 Standard Oil Company (Indiana) Marine riser insert sleeves
US4241786A (en) * 1978-05-02 1980-12-30 Bullen Ronald S Well tree saver
US4496012A (en) * 1983-05-02 1985-01-29 Mobil Oil Corporation Method for improving cuttings transport in deviated wells
US4507842A (en) * 1983-08-19 1985-04-02 John Werner Method of sealing and protecting a plastic lined pipe joint
US4754819A (en) * 1987-03-11 1988-07-05 Mobil Oil Corporation Method for improving cuttings transport during the rotary drilling of a wellbore
US5018575A (en) * 1988-10-25 1991-05-28 Mandrels, Inc. Apparatus for reducing abrasion and corrosion in mandrels
US5012865A (en) * 1989-09-26 1991-05-07 Mcleod Roderick D Annular and concentric flow wellhead isolation tool
US5311955A (en) * 1991-05-06 1994-05-17 Wave Tec Ges.M.B.H. Installation for cleaning the zone near the drill hole
GB2267920A (en) * 1992-06-17 1993-12-22 Petroleum Eng Services Improvements in or relating to well-head structures
US5396956A (en) * 1992-12-18 1995-03-14 Cherewyk; Bruce Well head isolation tool sealing nipple testing apparatus and method of pressure testing isolation tool sealing nipple seals when in position on a well

Also Published As

Publication number Publication date
WO1998038411A2 (en) 1998-09-03
WO1998038411A3 (en) 1999-02-18
GB9704213D0 (en) 1997-04-16
AU6736498A (en) 1998-09-18
GB9920347D0 (en) 1999-11-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)