Performance and simulation of a Cold Lake tar sand steam injection pilot

Conference · Tue Mar 01 04:00:00 EST 1983 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5697690

Duerksen, J M; Cruickshank, G W; Wasserman, M L

In April 1978 Chevron Canada Resources Limited initiated cyclic steam injection into a 21.5 acre seven-spot pilot on Cold Lake Lease number79. Steam was injected above fracture pressure to achieve the desired injection rates. Early observation well temperature responses and later pressure, temperature, and production responses in the producing wells indicated a NE-SW fracture orientation. Heat movement away from this NE-SW trend was relatively slow except in the vicinity of one well. Simultaneous steaming of on-trend wells appeared to accelerate the off-trend heat movement and apparently changed the direction of the fracture orientation. Significant drive response was observed between one on-trend well pair. The cumulative steam-oil ratio for completed cycles was about six in November 1981. Oil recovery was about 6.3 percent of the original oil within the pilot drainage area. A fractured reservoir steam injection simulator was used to study cyclic steam and steam drive responses. Simulation of cyclic steaming of a single well showed that increasing the steam slug size improves oil recovery for slug sizes ranging from 7.5 to 30.0 MSTB (1192 to 4770 m/sup 3/), and increasing the slug size from cycle to cycle gives better oil recovery than a fixed slug size.

• Research Organization: Chevron Oil Field Research Co.
• OSTI ID: 5697690
• Report Number(s): CONF-830312-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE 11700
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
ANALOG SYSTEMS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COLD LAKE DEPOSIT
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FRACTURE MECHANICS
FUELS
FUNCTIONAL MODELS
GEOLOGIC DEPOSITS
IN-SITU PROCESSING
MATERIALS
MECHANICS
OIL SAND DEPOSITS
OIL SANDS
PILOT PLANTS
PROCESSING
PRODUCTION
RECOVERY
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
SATURATION
SIMULATION
SIMULATORS
STEAM INJECTION
TECHNOLOGY ASSESSMENT
THERMAL RECOVERY
WATER SATURATION
WELL PRESSURE
WELL TEMPERATURE