CA2276973A1 - Tubing head spool and method of using same - Google Patents

Tubing head spool and method of using same Download PDF

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Publication number
CA2276973A1
CA2276973A1 CA 2276973 CA2276973A CA2276973A1 CA 2276973 A1 CA2276973 A1 CA 2276973A1 CA 2276973 CA2276973 CA 2276973 CA 2276973 A CA2276973 A CA 2276973A CA 2276973 A1 CA2276973 A1 CA 2276973A1
Authority
CA
Canada
Prior art keywords
tubing head
spool
head spool
reinforced area
treatments
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 2276973
Other languages
French (fr)
Other versions
CA2276973C (en
Inventor
L. Murray Dallas
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.)
Oil States Energy Services LLC
Original Assignee
L. Murray Dallas
Hwces International
Hwc Energy Services, Inc.
Oil States Energy Services, Inc.
Stinger Wellhead Protection, Inc.
Oil States Energy Services, L.L.C.
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 L. Murray Dallas, Hwces International, Hwc Energy Services, Inc., Oil States Energy Services, Inc., Stinger Wellhead Protection, Inc., Oil States Energy Services, L.L.C. filed Critical L. Murray Dallas
Publication of CA2276973A1 publication Critical patent/CA2276973A1/en
Application granted granted Critical
Publication of CA2276973C publication Critical patent/CA2276973C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A tubing head spool for use with a BOP
protector in fracturing or stimulation treatments is described. The tubing head spool includes a reinforced area of its sidewall that is adjacent a bottom flange of the spool and surrounds a supports an annular seal which provides a sealing engagement between the end of the BOP
protector and a secondary seal in a bottom of the spool.
The reinforced area contains radial pressure transferred through the annular seal during well stimulation treatments. The reinforced area has a pressure rating greater than the pressure rating of the remainder of the tubing head spool so that the modified tubing head spool is adapted for use with the BOP protector for high pressure well stimulation treatments. The advantage is an economic tubing head spool that enables safe high pressure well treatments at pressures up to the pressure rating of the reinforced area of the tubing head spool.
CA 2276973 1998-09-29 1999-07-07 Tubing head spool and method of using same Expired - Lifetime CA2276973C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16227898A 1998-09-29 1998-09-29
US09/162,278 1998-09-29

Publications (2)

Publication Number Publication Date
CA2276973A1 true CA2276973A1 (en) 2000-03-29
CA2276973C CA2276973C (en) 2004-11-23

Family

ID=31186296

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2276973 Expired - Lifetime CA2276973C (en) 1998-09-29 1999-07-07 Tubing head spool and method of using same

Country Status (1)

Country Link
CA (1) CA2276973C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069987B2 (en) 2003-02-07 2006-07-04 Stream-Flo Industries, Ltd. Casing adapter tool for well servicing
US7743824B2 (en) 2007-03-23 2010-06-29 Stream-Flo Industries Ltd. Method and apparatus for isolating a wellhead for fracturing
US8622121B2 (en) 2011-02-10 2014-01-07 Vetco Gray Inc. Reinforced frac tubing head
CN113187468A (en) * 2021-04-01 2021-07-30 东北石油大学 Wellhead sealing simulation device for high-pressure gas well

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7069987B2 (en) 2003-02-07 2006-07-04 Stream-Flo Industries, Ltd. Casing adapter tool for well servicing
US7743824B2 (en) 2007-03-23 2010-06-29 Stream-Flo Industries Ltd. Method and apparatus for isolating a wellhead for fracturing
US8622121B2 (en) 2011-02-10 2014-01-07 Vetco Gray Inc. Reinforced frac tubing head
CN113187468A (en) * 2021-04-01 2021-07-30 东北石油大学 Wellhead sealing simulation device for high-pressure gas well
CN113187468B (en) * 2021-04-01 2022-05-31 东北石油大学 Wellhead sealing simulation device for high-pressure gas well

Also Published As

Publication number Publication date
CA2276973C (en) 2004-11-23

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Effective date: 20190708