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据1987年有关资料报道,美国地层原油共78.4×10~9m~3,可采量占34％。到1985年底,累积产油已达22.1×10~9m~3,占28％;探明油量4.4×10~9m~3,占6％,其余66％中可采而未驱采的油占总储量19％;47％是不可采的圆闭油。已发现的油当中有2/3即51.7×10~9m~3,由于缺乏经济的产油技术而仍埋在地层内。未采出的油中70％用常规技术是无法采出的,这些资源是提高石油采收率的目标。目前在油价较低的情况下,许多未经试验的提高采收率的技术不能刺激油田经营者进行开采。 1984年,美国石油委员会组织各工业部门、大学、政府私非营利机构的专家,花了两年功夫分析美国提高石油采收率的潜力,研制出一个三次采油信息系统(TORIS)。该
According to 1987 data reported that the United States a total of 78.4 × 10 ~ 9m ~ 3 crude oil formation, recoverable 34%. By the end of 1985, the cumulative oil production reached 22.1 × 10 ~ 9m 3, accounting for 28% of the total. The proved oil amount was 4.4 × 10 ~ 9m 3, accounting for 6% of the total. The remaining 66% The total reserves of 19%; 47% is not recoverable closed oil. Two-thirds of the oil found, 51.7 × 10 -9 m 3, is still buried in the formation due to the lack of economical oil production technology. Seventy percent of the unremoved oil is unobtainable using conventional technologies, and these resources are targets for increased oil recovery. At a time when oil prices are low, many of the untested technologies for enhanced oil recovery can not stimulate oilfield operators to mine. In 1984, the committee organized experts from various industrial departments, universities and government private non-profit organizations to spend two years on analyzing the potential of the United States to increase oil recovery and to develop a TORIS. This