CA2482335A1 - Wellhead isolation tool and method of fracturing a well - Google Patents

Wellhead isolation tool and method of fracturing a well Download PDF

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Publication number
CA2482335A1
CA2482335A1 CA 2482335 CA2482335A CA2482335A1 CA 2482335 A1 CA2482335 A1 CA 2482335A1 CA 2482335 CA2482335 CA 2482335 CA 2482335 A CA2482335 A CA 2482335A CA 2482335 A1 CA2482335 A1 CA 2482335A1
Authority
CA
Canada
Prior art keywords
hanger
fracturing
well
tubular member
isolation tool
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.)
Granted
Application number
CA 2482335
Other languages
French (fr)
Other versions
CA2482335C (en
Inventor
Rex E. Duhn
Robert K. Meek
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.)
SPM Oil and Gas PC LLC
Original Assignee
Duhn Oil Tool Inc
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 Duhn Oil Tool Inc filed Critical Duhn Oil Tool Inc
Publication of CA2482335A1 publication Critical patent/CA2482335A1/en
Application granted granted Critical
Publication of CA2482335C publication Critical patent/CA2482335C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A wellhead assembly is provided including a first tubular member, a hanger mounted within the first tubular member and an annular member coupled to the outer surface of the hanger. The assembly also includes a second tubular member mounted to the annular member and surrounding a portion of the hanger. A method is also provided for fracturing a well requiring coupling a tubing mandrel hanger to a casing, the hanger having a central bore, coupling an annular nut on a portion of the outer surface of the hanger, mounting a tubular member having a flange over the hanger and on the flange, and applying fluids though the bore formed though the hanger for fracturing the well.
CA002482335A 2003-09-26 2004-09-24 Wellhead isolation tool and method of fracturing a well Expired - Lifetime CA2482335C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50664103P 2003-09-26 2003-09-26
US60/506,641 2003-09-26

Publications (2)

Publication Number Publication Date
CA2482335A1 true CA2482335A1 (en) 2005-03-26
CA2482335C CA2482335C (en) 2007-12-04

Family

ID=34393182

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002482335A Expired - Lifetime CA2482335C (en) 2003-09-26 2004-09-24 Wellhead isolation tool and method of fracturing a well

Country Status (1)

Country Link
CA (1) CA2482335C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110469286A (en) * 2019-07-24 2019-11-19 大庆油田有限责任公司 A kind of combined pressure wellhead assembly for pressure break with pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110469286A (en) * 2019-07-24 2019-11-19 大庆油田有限责任公司 A kind of combined pressure wellhead assembly for pressure break with pressure

Also Published As

Publication number Publication date
CA2482335C (en) 2007-12-04

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