NO341582B1 - System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner - Google Patents

System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner

Info

Publication number
NO341582B1
NO341582B1 NO20150446A NO20150446A NO341582B1 NO 341582 B1 NO341582 B1 NO 341582B1 NO 20150446 A NO20150446 A NO 20150446A NO 20150446 A NO20150446 A NO 20150446A NO 341582 B1 NO341582 B1 NO 341582B1
Authority
NO
Norway
Prior art keywords
wellhead
motion sensor
utmatting
undervannsbrønner
overvåke
Prior art date
Application number
NO20150446A
Other languages
Norwegian (no)
Other versions
NO20150446A1 (en
Inventor
Harald Holden
Kristian Authen
Ali Cetin
Original Assignee
4Subsea 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
Application filed by 4Subsea As filed Critical 4Subsea As
Priority to NO20150446A priority Critical patent/NO341582B1/en
Publication of NO20150446A1 publication Critical patent/NO20150446A1/en
Publication of NO341582B1 publication Critical patent/NO341582B1/en

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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/007—Measuring stresses in a pipe string or casing

Landscapes

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

Abstract

Sensor data is received from a first motion sensor which is provided at a blowout preventer, below the lower flex joint of the wellhead, and a second motion sensor which is provided at a riser, above a lower flex joint of the wellhead. A time series of values related to the inclination of the blowout preventer, ?BOP(t), is determined from the data received from the first motion sensor, and a time series of values related to an inclination of the riser, ?Riser(t), is determined from the data received from the second motion sensor. A value related to wellhead stiffness, KWH, is determined, and a time series of values related to a wellhead bending moment, MWH(t), is calculated from the value related to the blowout preventer inclination, and the value related to the stiffness of the wellhead.Sensor data is received from a first motion sensor which is provided at a blowout preventer, below the lower flex joint of the wellhead, and a second motion sensor which is provided at a riser, above a lower flex joint of the wellhead. A time series of values related to the inclination of the blowout preventer,? BOP (t), is determined from the data received from the first motion sensor, and a time series of values related to an inclination of the riser,? Riser (t ), is determined from the data received from the second motion sensor. A value related to wellhead stiffness, KWH, is determined, and a time series of values related to a wellhead bending moment, MWH (t), is calculated from the value related to the blowout preventer inclination, and the value related to the stiffness of the wellhead.

NO20150446A 2015-04-14 2015-04-14 System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner NO341582B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20150446A NO341582B1 (en) 2015-04-14 2015-04-14 System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20150446A NO341582B1 (en) 2015-04-14 2015-04-14 System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner

Publications (2)

Publication Number Publication Date
NO20150446A1 NO20150446A1 (en) 2016-10-17
NO341582B1 true NO341582B1 (en) 2017-12-11

Family

ID=57234395

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20150446A NO341582B1 (en) 2015-04-14 2015-04-14 System og metode for å overvåke utmatting ved brønnhodet i undervannsbrønner

Country Status (1)

Country Link
NO (1) NO341582B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019067765A1 (en) * 2017-09-29 2019-04-04 Bp Corporation North America Inc. Systems and methods for monitoring components of a well system
NO345972B1 (en) * 2019-09-13 2021-11-29 Subseadesign As A wellhead system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030230409A1 (en) * 2002-06-13 2003-12-18 Jean Guesnon Instrumentation assembly for an offshore riser
US20050100414A1 (en) * 2003-11-07 2005-05-12 Conocophillips Company Composite riser with integrity monitoring apparatus and method
US20060065401A1 (en) * 2004-09-28 2006-03-30 John Allen System for sensing riser motion
WO2014064190A2 (en) * 2012-10-24 2014-05-01 Fmc Kongsberg Subsea As Method of calculation loads on a subsea component.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030230409A1 (en) * 2002-06-13 2003-12-18 Jean Guesnon Instrumentation assembly for an offshore riser
US20050100414A1 (en) * 2003-11-07 2005-05-12 Conocophillips Company Composite riser with integrity monitoring apparatus and method
US20060065401A1 (en) * 2004-09-28 2006-03-30 John Allen System for sensing riser motion
WO2014064190A2 (en) * 2012-10-24 2014-05-01 Fmc Kongsberg Subsea As Method of calculation loads on a subsea component.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PETER JAMES SIMPSON, ROVERI FRANCISCO EDWARD, PETROBRAS: "A SYSTEM FOR MEASURING WELLHEAD BENDING MOMENTS DURING COMPLETION OPERATIONS Otávio de Brito Collaço Veras (2H Offshore)", 24 September 2008 (2008-09-24), XP055124437, Retrieved from the Internet <URL:http://www.pulse-monitoring.com/assets/uploads/cms/files/111-64.pdf> [retrieved on 20140620] *

Also Published As

Publication number Publication date
NO20150446A1 (en) 2016-10-17

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: 4SUBSEA AS, NO

CREP Change of representative

Representative=s name: ONSAGERS AS, POSTBOKS 1813 VIKA, 0123 OSLO, NORGE