Newest TFL retrievable safety valves for subsea completions

Conference · Sun May 01 00:00:00 EDT 1983 · Offshore Technol. Conf.; (United States)

OSTI ID:5473090

Yonker, J H

Two new novel retrievable ball type safety valves are now available in the TFL (pumpdown) configuration. These valves offer greater depths in a more simplified configuration to operators planning subsea completions. They were developed at the request of major producers for use in the North Sea and Southeast Asia. Design of these new valves began in 1977 and early 1978 by engineers from Otis' Research and Development Department. One valve is a balance line valve with a novel fail-close leak protection feature. The other valve is a single line deep set valve which allows installation at greater depths than previously achieved. They have been successfully tested in test wells and test loops at the manufacturer and in two land test wells by the operators. The safety system packages for these valves are currently installed in two subsea wells - one in the North Sea and the other in the South China Sea. The material presented in this paper shows how the capabilities of subsea production are expanded by the development of a truly fail safe balance line retrievable ball valve and a deep set single line ball valve which can be placed at or near the packer, below paraffin levels, or below the kickoff point.

• Research Organization: Otis Engineering Corp.
• OSTI ID: 5473090
• Report Number(s): CONF-830514-
• Journal Information: Offshore Technol. Conf.; (United States), Vol. 1; Conference: Offshore technology conference, Houston, TX, USA, 2 May 1983
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DRILLING EQUIPMENT
VALVES
DESIGN
CHINA SEA
NORTH SEA
OFFSHORE DRILLING
SAFETY
ATLANTIC OCEAN
CONTROL EQUIPMENT
DRILLING
EQUIPMENT
FLOW REGULATORS
PACIFIC OCEAN
SEAS
SURFACE WATERS
420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
423000 - Engineering- Marine Engineering- (1980-)