GB2622557A - Subsea petroleum wellhead systems and methods - Google Patents

Subsea petroleum wellhead systems and methods Download PDF

Info

Publication number
GB2622557A
GB2622557A GB2400563.9A GB202400563A GB2622557A GB 2622557 A GB2622557 A GB 2622557A GB 202400563 A GB202400563 A GB 202400563A GB 2622557 A GB2622557 A GB 2622557A
Authority
GB
United Kingdom
Prior art keywords
receptacle
wellhead
pressure
wellhead housing
housing
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.)
Pending
Application number
GB2400563.9A
Other versions
GB202400563D0 (en
Inventor
Rodriguez Garcia Javier
Helgen Martin
Pedersen Martin
Barfod Schüller Rolf
Spalder Brynjulf
Mogedal Knut
KNUDTZON Christopher
WESMANN Johan
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.)
Aker Solutions Subsea AS
Original Assignee
Aker Solutions Subsea AS
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 NO20210780A external-priority patent/NO20210780A1/en
Application filed by Aker Solutions Subsea AS filed Critical Aker Solutions Subsea AS
Publication of GB202400563D0 publication Critical patent/GB202400563D0/en
Publication of GB2622557A publication Critical patent/GB2622557A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

A wellhead assembly (100) comprising: a wellhead support structure (101), a high- pressure wellhead housing (201), the wellhead support structure (101) arranged as part of a sea floor foundation (200) and having a receptacle (102) rigidly fixed thereto such that the support structure (101) provides a bending moment restraint on the receptacle (102), wherein the receptacle (102) comprises two vertically spaced, circumferential support faces (130,131), each of the support faces (130,131) providing horizontal support to the high-pressure wellhead housing (201), and wherein the two vertically spaced, circumferential support faces (130,131) in conjunction provide a bending moment restraint on the high-pressure wellhead housing (201) in the receptacle (102). There is also provided a method of establishing a subsea well.

Claims (10)

1. A wellhead assembly (100) comprising: a wellhead support structure (101), a high-pressure wellhead housing (201), the wellhead support structure (101) arranged as part of a sea floor foundation (200) and having a receptacle (102) rigidly fixed thereto such that the support structure (101) provides a bending moment restraint on the receptacle (102), wherein the receptacle (102) comprises two vertically spaced, circumferential support faces (130,131), each of the support faces (130,131) providing horizontal support to the high-pressure wellhead housing (201), and wherein the two vertically spaced, circumferential support faces (130,131) in conjunction provide a bending moment restraint on the high-pressure wellhead housing (201) in the receptacle (102).
2. A wellhead assembly (100) according to claim 1 , wherein the receptacle (102) holds the high-pressure wellhead housing (201) directly, without any intermediate pipes between the receptacle (102) and the high-pressure wellhead housing (201).
3. A wellhead assembly (100) according to any preceding claim, wherein a vertical distance between the support faces (130,131) is larger than an outer diameter (D1) of a connector part (201b) of the high-pressure wellhead housing (201), larger than a largest outer diameter (D2) of the high-pressure wellhead housing (201), and/or larger than twice the outer diameter (D1) of the connector part (201b).
4. A wellhead assembly (100) according to any preceding claim, wherein the uppermost circumferential support face (130) has a diameter which is larger than that of the lowermost circumferential support face (131).
5. A wellhead assembly (100) according to any preceding claim, wherein the receptacle (102) comprises a landing shoulder (132) providing vertical support to the high-pressure wellhead housing (201).
6. A wellhead assembly (100) according to claim 5, wherein the landing shoulder (132) is arranged between two vertically spaced, circumferential support faces (130,131).
7. A method of establishing a subsea well, the method comprising the steps: (i) installing a wellhead assembly (100) on a sea floor, the wellhead assembly (100) having a wellhead support structure (101) with a pre installed receptacle (102) rigidly fixed thereto, (ii) running a high-pressure well pipe (201a) through the receptacle (102) and into the sea floor, (iii) landing a high-pressure wellhead housing (201) in the receptacle (102), and (iv) establishing a connection between the high-pressure wellhead housing (201) and the receptacle (102) by bringing two vertically spaced, circumferential support faces (130,131) in the receptacle (102) adjacent or into contact with the high-pressure wellhead housing (201), whereby the connection provides a moment restraint on the high-pressure wellhead housing (201) in the receptacle (102).
8. The method of claim 7, wherein step (iii) comprises landing the high- pressure wellhead housing (201) on a shoulder (132) in the receptacle (102).
9. The method of claim 8, wherein the shoulder (132) is arranged between the two vertically spaced, circumferential support faces (130,131).
10. The method of any of claims 7-9, wherein step (iii) comprises landing the high-pressure wellhead housing (201) directly in the receptacle (102) without an intermediate low-pressure pipe or pipe housing therebetween.
GB2400563.9A 2021-06-16 2022-06-15 Subsea petroleum wellhead systems and methods Pending GB2622557A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20210780A NO20210780A1 (en) 2021-06-16 2021-06-16 Subsea petroleum wellhead systems and methods
NO20220252A NO20220252A1 (en) 2021-06-16 2022-02-25 Subsea petroleum wellhead systems and methods
PCT/NO2022/050135 WO2022265516A1 (en) 2021-06-16 2022-06-15 Subsea petroleum wellhead systems and methods

Publications (2)

Publication Number Publication Date
GB202400563D0 GB202400563D0 (en) 2024-02-28
GB2622557A true GB2622557A (en) 2024-03-20

Family

ID=82361296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2400563.9A Pending GB2622557A (en) 2021-06-16 2022-06-15 Subsea petroleum wellhead systems and methods

Country Status (3)

Country Link
GB (1) GB2622557A (en)
NO (1) NO20240029A1 (en)
WO (1) WO2022265516A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190128084A1 (en) * 2016-03-08 2019-05-02 Equinor Energy As Subsea wellhead assembly
US20190162038A1 (en) * 2016-07-05 2019-05-30 Equinor Energy As Subsea wellhead assembly
US20200198735A1 (en) * 2017-09-07 2020-06-25 Equinor Energy As Marine suction anchor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO314320B1 (en) 2000-12-28 2003-03-03 Kvaerner Oilfield Prod As Well frame mounted guide
GB0115859D0 (en) 2001-06-28 2001-08-22 Kvaerner Oilfield Products Ltd tensioning arrangement
NO334839B1 (en) 2010-11-16 2014-06-16 Aker Subsea As Wellhead system and locking device for blowout protection
GB201402176D0 (en) 2014-02-07 2014-03-26 Enovate Systems Ltd Wellbore installation apparatus and associated methods
EP3935258A4 (en) 2019-03-07 2022-12-07 ConocoPhillips Company Surface conductor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190128084A1 (en) * 2016-03-08 2019-05-02 Equinor Energy As Subsea wellhead assembly
US20190162038A1 (en) * 2016-07-05 2019-05-30 Equinor Energy As Subsea wellhead assembly
US20200198735A1 (en) * 2017-09-07 2020-06-25 Equinor Energy As Marine suction anchor

Also Published As

Publication number Publication date
WO2022265516A1 (en) 2022-12-22
GB202400563D0 (en) 2024-02-28
NO20240029A1 (en) 2024-01-11

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