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Update of comparative analysis of steam delivery costs for surface and downhole steam drive technologies

Technical Report ·
OSTI ID:6886678
;
A review and update is presented of a previous analysis which compared the economic performance of the surface and downhole steam delivery technologies investigated in the Department of Energy's Project DEEP STEAM for the enhanced recovery of heavy oil from deep reservoirs. Emphasis is placed on an examination and revision of the compression and wellbore heat loss assumptions and their effects on sandface steam delivery costs. Multistage compression with intercooling and aftercooling, increased overall compression efficiency, and waste heat scavenging all serve to decrease the cost of steam generated downhole and reduce differences among the various surface and downhole delivery system costs. Wellbore heat loss increases dramatically when water is present in the annulus, causing a reduction in the depth to which surface steaming is effective and an increase in steam delivery costs. Other concerns potentially impacting the cost comparisons are discussed. These include: crude versus diesel generator fuel, reliability of both surface and downhole hardware, capital equipment costs, surface transmission losses, and the assumption of hydrostatic reservoir pressure. 16 references, 19 figures, 1 table.
Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6886678
Report Number(s):
SAND-84-0050; ON: DE84011522
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BOILERS
BOREHOLES
CAPITALIZED COST
CAVITIES
COMPARATIVE EVALUATIONS
COST
DATA
DEPTH
DIESEL FUELS
DIMENSIONS
ENERGY CONSUMPTION
ENERGY LOSSES
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID INJECTION
FOSSIL FUELS
FUEL CONSUMPTION
FUELS
HEAT LOSSES
INFORMATION
LOSSES
NUMERICAL DATA
OIL WELLS
PETROLEUM
PETROLEUM PRODUCTS
RECOVERY
RESERVOIR PRESSURE
STEAM GENERATION
STEAM GENERATORS
STEAM INJECTION
STIMULATION
THERMAL RECOVERY
VAPOR GENERATORS
WELL STIMULATION
WELLS