Deepwater tools work against odds

Journal Article · Tue Jan 01 04:00:00 EST 1980 · Offshore; (United States)

OSTI ID:5041812

Crawford, D

Designed to extend subsea production technology to water depths beyond guideline system capabilities, Vetco's deepwater subsea production system combines satellite well with template-mounted completion techniques. The drilling and production template provides a simple means of leveling the template on the ocean floor and facilitate remote reentry. The deepwater production riser designed for this system allows for long-term use in deepwater and permits independent, individual flowline runs. A new conceptual addition to Vetro's deep sea equipment line is the sub-mudline type completion system where wellhead and all major tree control valves compactly, and protectively, fit in a caisson well below the ocean floor. Vetco's line of ocean floor production completion systems range from manually installed and operated, diver-assisted trees to totally diverless systems installed on the wellhead, flowline connected and automatically controlled. National Supply's role in subsea completion operations and the adaptation of shallow water equipment to deeper water assignments began to take shape with the first discoveries in the North Sea. The template system consists of a number of wells drilled from a single pre--piped template structure on the ocean floor. Making it adaptable for use with a tension leg type drilling/production platform is its key feature. Subsea control systems have also changed; remote or hydraulically operated controls now must work a greater distance from the actual production site, and alternations of existing control systems seem to be the current trend. Cameron tools were also discussed. (DP)

• OSTI ID: 5041812
• Journal Information: Offshore; (United States), Journal Name: Offshore; (United States) Vol. 40:1; ISSN OFSHA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
ATLANTIC OCEAN
CONTROL SYSTEMS
DRILLING EQUIPMENT
EQUIPMENT
GEOLOGIC DEPOSITS
LABORATORY EQUIPMENT
MANIPULATORS
MARINE RISERS
MATERIALS HANDLING EQUIPMENT
MINERAL RESOURCES
NORTH SEA
OIL FIELDS
PETROLEUM DEPOSITS
PIPES
REMOTE HANDLING EQUIPMENT
RESOURCES
SEAS
SURFACE WATERS
TOOLS
UNDERWATER OPERATIONS
WELLHEADS