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Title: Standardized wellheads proven economical for subsea operations

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.
;  [1]
  1. (Petroleo Brasileiro SA, Rio de Janeiro (Brazil))
Publication Date:
OSTI Identifier:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Oil and Gas Journal; (United States); Journal Volume: 92:18
Country of Publication:
United States
42 ENGINEERING; 02 PETROLEUM; 03 NATURAL GAS; BRAZIL; OFFSHORE PLATFORMS; WELLHEADS; STANDARDIZATION; FIELD PRODUCTION EQUIPMENT; PIPELINES; DEVELOPING COUNTRIES; EQUIPMENT; LATIN AMERICA; SOUTH AMERICA 423000* -- Engineering-- Marine Engineering-- (1980-); 020300 -- Petroleum-- Drilling & Production; 030300 -- Natural Gas-- Drilling, Production, & Processing