How Conoco floods with seawater

Journal Article · Mon Feb 15 04:00:00 EST 1971 · Oil Gas J.; (United States)

OSTI ID:5862354

Hudgins, Jr, C M; Hanson, R T

A schematic drawing shows Conoco's Ventura ocean- water treating plant. Ocean water from the surf zone is being treated and injected into Continental Oil Co.'s San Miguelito field north of Ventura, Calif., at a rate exceeding 25,000 bpd. More injection plants are scheduled for future service to boost the capacity to the 100,000-bpd figure. So far, cumulative injection is above 2 million bbl of high-quality water, delivered to the injection plants at a cost of about 1.5 cent per bbl. Injection wells show no indication of plugging and production response has been as expected. Pay sands occur at drilled depths of 5,500 to 14,000 ft. Reservoir rock properties vary considerably between sand members and tend to decrease with depth. Average porosity and air-permeability values range from 19% and 32 md to 13% and 16 md. Crude-oil gravity is 30$ + API and solution-gas values range from 500 to 700 cu ft per bbl. The primary production mechanism is solution gas supplemented by a umited natural water drive in some zones. Reservoir studies indicated that a significant fraction of the original oil in place would be lost without some form of enhanced recovery. The ocean-water treating plant selected is designed to process 50,000 bpd of raw surface water, to render it suitable for injection into a number of tight formations for waterflooding.

• Research Organization: Continental Oil Co.
• OSTI ID: 5862354
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 69:7; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CALIFORNIA
ENERGY SOURCES
ENGINEERING
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INJECTION WELLS
NORTH AMERICA
OIL WELLS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
PLUGGING
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ROCKS
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SEDIMENTARY ROCKS
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WATER
WATER TREATMENT
WATERFLOODING
WELLS
WESTERN REGION