This paper presents an update of "The Jobo Steamflood Project-Evaluation of Results" (1). Although an adverse condition, such as the presence of a strong natural water drive in this reservoir, which prevents pressure depletion by primary steam stimulated production, 41.5% of the STOOIP has been produced, from an estimated final recovery of 45%.

Results from this mature project include a geological description of the oil bearing formations, basic petrophysical and fluids properties, a summary of oil production/steam injection statistics, well completions including thermal insulation of steam injection wells, surface facilities and associated processes with emphasis in recent technological developments, and analysis of front tracking schemes and their results.

Since preliminary results of this project were presented (1), substantial knowledge has been gained, which is being used in the planning of commercial development of Venezuela's huge Orinoco Belt.

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