Title: The essential technology of steam drive for heterogeneous heavy oil reservoir with edge-bottom water
Abstract: Jin 91 Block is a highly heterogeneous heavy oil reservoir with active edge-bottom water in Liaohe oil field.The ratio of total oil produced to OOIP now is 35.8% by cyclic steam stimulation,and edge-bottom water invasion has been found in some parts of the reservoir.Oil production is declining at 10~20% per year.Steam drive is the next development scheme to convert.The essential technology of steam drive design has been optimized through thermal recovery engineering and numerical simulation: well pattern adopts 83m spacing inverted nine-spot pattern;reservoir pressure during conversion and steam drive must be controlled below 5MPa;injection rate is 1.65t/(d·hm2·m) per reservoir volume,bottom hole steam quality is 55%,injection to production ratio is 1.1∶1.0
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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