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首页> 美国政府科技报告 >Project 5 -- Solution gas drive in heavy oil reservoirs: Gas and oil phase mobilities in cold production of heavy oils. Quarterly progress report, October 1--December 31, 1996
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Project 5 -- Solution gas drive in heavy oil reservoirs: Gas and oil phase mobilities in cold production of heavy oils. Quarterly progress report, October 1--December 31, 1996

机译：项目5 - 稠油油藏中的溶解气驱动：重油冷生产中的气相和油相迁移。季度进度报告，1996年10月1日至12月31日

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In this report, the authors present the results of their first experiment on a heavy crude of about 35,000 cp. A new visual coreholder was designed and built to accommodate the use of unconsolidated sand. From this work, several clear conclusions can be drawn: (1) oil viscosity does not decrease with the evolution of gas, (2) the critical gas saturation is in the range of 4--5%, and (3) the endpoint oil relative permeability is around 0.6. However, the most important parameter, gas phase mobility, is still unresolved. Gas flows intermittently, and therefore the length effect becomes important. Under the conditions that the authors run the experiment, recovery is minimal, about 7.5%. This recovery is still much higher than the recovery of the C(sub 1)/C(sub 10) model system which was 3%. After a duplicate test, they plan to conduct the experiment in the horizontal core. The horizontal core is expected to provide a higher recovery.

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