Project Profile
Value: US$300 million
Location: Los Llanos Basin, Quifa Block, Colombia
Start-up Year: 2014
Reserves: 251 million bbl
The Quifa Block is an exploratory block that almost completely surrounds the Rubiales Field. The block is three times larger than Rubiales and has seven additional prospects that have been identified with the interpretation of the recently completed seismic campaign. The Quifa-5 well has evidence of hydrocarbon presence. The well found the top of the basal sandstones at a depth of 2,246 feet true vertical depth sub-sea (TVDSS) and the oil-water contact at 2,311 feet TVDSS, resulting in an oil column of 65 feet at the well. However, as the crest of the structure at Prospect E is at 2,240 feet TVDSS, the resulting total column for the structure is 71 gross feet. Preliminary petrophysical evaluation of the data at the well indicates a net pay zone of 25 feet with porosities over 32. Recoverable reserves for the prospect could range from 50-100 million barrels of oil.
The I-9 ST-2 well (Prospect I) found the top of the basal sandstones at a depth of 2,038 feet true vertical depth sub-sea (TVDSS) and the oil-water contact at 2,081 feet TVDSS, resulting in a vertical oil column of 41 feet gross at the well. Preliminary petrophysical evaluation of the data at the well indicates a net pay zone of 18 feet with porosities over 30%. Pacific Rubiales and Ecopetrol aim to determine the commercial viability of a proprietary technology dubbed STAR (Synchronized Thermal Additional Recovery) through a pilot project on Quifa. STAR could significantly increase the recovery factor in the field.
Operators:
Ecopetrol SA: Operator with 100% interest