Successful flow testing of a gas reservoir in 3,500 feet of water

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Journal of Petroleum Technology; (United States)

OSTI ID:7310362

Shaughnessy, J M; Carpenter, R S; Coleman, R A; Jackson, C W ^[1]

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1. Amoco Production Co., Tulsa, OK (United States)

The test of Viosca Knoll Block 957 Well No. 1 Sidetrack No. 2 was Amoco Production Co.'s deepest test from a floating rig. Viosca Knoll 957 is 115 miles southeast of New Orleans in 3,500 ft of water. The test, at a record water depth for the Gulf of Mexico, also set a world water-depth record for testing a gas reservoir. Safety to crew and the environmental were top priorities during the planning. A team consisting of drilling, completion, reservoir, and facilities engineers and a foreman were assigned to plan and implement the test. Early planning involved field, service company, and engineering groups. Every effort was made to identify potential problems and to design the system to handle them. This paper reports that the goals of the test were to determine reservoir properties and reservoir limits. Several significant challenges were involved in the well test. The reservoir was gas with a potentially significant condensate yield. The ability to dispose of the large volumes of produced fluids safely without polluting was critical to maintaining uninterrupted flow. Potential shut-in surface pressure was 6,500 psi. Seafloor temperature in 3,500 ft of water was 39{degrees}F.

• OSTI ID: 7310362
• Journal Information: Journal of Petroleum Technology; (United States), Vol. 44:7; ISSN 0022-3522
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
42 ENGINEERING
29 ENERGY PLANNING
POLICY AND ECONOMY
ENVIRONMENT
SAFETY ANALYSIS
NATURAL GAS WELLS
OFFSHORE OPERATIONS
RESERVOIR ENGINEERING
PLANNING
WELL COMPLETION
DRILLING FLUIDS
GAS CONDENSATES
MATERIALS HANDLING
PERSONNEL
TEMPERATURE GRADIENTS
WASTE DISPOSAL
WELL DRILLING
ANIMALS
CONDENSATES
DRILLING
ENGINEERING
FLUIDS
LIQUIDS
MAMMALS
MAN
MANAGEMENT
NATURAL GAS LIQUIDS
PRIMATES
VERTEBRATES
WASTE MANAGEMENT
WELLS
030500* - Natural Gas- Health & Safety
030800 - Natural Gas- Environmental Aspects
423000 - Engineering- Marine Engineering- (1980-)
294003 - Energy Planning & Policy- Natural Gas