Evaluation of well head loads: A case study
- Petrobras R and D Center, Rio de Janeiro (Brazil)
- Planave S.A., Rio de Janeiro (Brazil)
- COPPE/UFRJ, Rio de Janeiro (Brazil)
The determination of wellhead loads due to the drilling and completion phases for a subsea well has been a concern for the oil industry considering the move towards deeper waters (McIver (1991), Valka and Fowler (1985), March and Smith (1984)). Thorough study of the behavior of the wellhead system, blow-out preventer (BOP), lower marine riser package (LMRP) and riser when submitted to a variety of loads of different nature, is required in order to have an appropriate evaluation of the loads transmitted to the wellhead body by the upper part of the structure. To overcome part of this limitation, an approach to evaluate the wellhead extreme static loads without the need of performing a detailed riser analysis is presented. The objective of the analysis is to validate the methodology for a given wellhead and soil configuration rather than study the effects of variables such as casing/conductor and conductor/soil annulus cement shortfall, gaps between the wellhead body and conductor housing or load paths into the casing and conductor.
- OSTI ID:
- 194687
- Report Number(s):
- CONF-950695-; ISBN 0-7918-1307-X; TRN: IM9611%%189
- Resource Relation:
- Conference: International conference on offshore mechanics and arctic engineering, Copenhagen (Denmark), 18-22 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 1, Part B: Offshore technology; Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services, Plainfield, IL (United States)]; Gudmestad, O.T. [ed.] [Statoil, Stavanger (Norway)]; Sparks, C. [ed.] [Inst. Francais du Petrole, Rueil-Malmaison (France)]; Morrison, D.G. [ed.] [Shell E and P Technology Co., Houston, TX (United States)]; PB: 539 p.
- Country of Publication:
- United States
- Language:
- English
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