Standardized wellheads proven economical for subsea operations

Journal Article · Mon May 02 04:00:00 EDT 1994 · Oil and Gas Journal; (United States)

OSTI ID:7173783

Moreira, C C; Silva Paulo, C A ^[1]

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1. Petroleo Brasileiro SA, Rio de Janeiro (Brazil)

A standardization program for subsea wellheads and completion equipment has made development of Brazil's offshore fields more economical and efficient. The resulting operational flexibility associated with the use of field-proven equipment and procedures saves rig time and can reduce production loss during workovers. Additionally, investments can be rationalized economically by installing part of the completion equipment at the end of the drilling job and then delaying purchase and installation of the christmas tree and the flow lines until installation of the production platform. Savings are also realized from the reduction in the number of spare parts and tools. Moreover, the savings related to improved operations exceed considerably those from equipment acquisition and storage. Thus, the greatest benefit is the operational flexibility. The paper discusses initial standards, the subsea programs, philosophy, implementation, diver-assisted trees, diverless trees, and economics.

• OSTI ID: 7173783
• Journal Information: Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 92:18; ISSN OIGJAV; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
423000* -- Engineering-- Marine Engineering-- (1980-)
BRAZIL
DEVELOPING COUNTRIES
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
LATIN AMERICA
OFFSHORE PLATFORMS
PIPELINES
SOUTH AMERICA
STANDARDIZATION
WELLHEADS