DEVELOPMENT OF A DEEPWATER RISER SYSTEM FOR SCIENTIFIC DRILLING IN THE 21ST CENTURY
This paper presents a technical study on a deepwater drilling riser for scientific drilling in water depths of up to 4,000 meters. The outer diameter of the riser pipe was selected to be 16 inches, and the utilization of titanium alloy was considered to enable the design of a 4,000 meter riser. The following three models were studied to determine the technical feasibility, mainly from the strength point of view: a) the lower 2,000m of riser joints are made of titanium alloy, and the remaining top 2,000m are made of steel; b) the bottom 1,000m of riser joints are made of titanium alloy, and the remaining top 3,000m are made of steel; and c) the lower 2,000m of riser joints are made of titanium alloy, and the remaining top 2,000m of riser joints are made as follows: riser pipe and connector parts: steel with thickened wall pipe for the top 1,000m; and choke/kill lines: titanium alloy. The study results indicated model c to be the most feasible, followed by model a, with model b seeming the least feasible.
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Supplemental Notes:
- OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1307-X. Vol I, Pt B, p 281 [7 p, 4 ref, 2 tab, 14 fig]
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Authors:
- Takagawa, S
- Yamamoto, H
- ISHIDA, S
- Publication Date: 1995
Language
- English
Subject/Index Terms
- TRT Terms: Offshore drilling platforms; Offshore oil industry
- Old TRIS Terms: Risers
- Subject Areas: Bridges and other structures; Marine Transportation;
Filing Info
- Accession Number: 00718452
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Mar 27 1996 12:00AM