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针对河间东营油藏的地质条件和开发特点 ,开展了微生物采油室内试验和评价 ,优选适合油藏特点的耐高温微生物菌种 ,优化驱替试验参数。在室内试验的基础上进行了微生物驱替现场实施方案论证和编制。通过5个注水井组微生物驱替现场试验 ,取得了较好的增油效果 ,进一步提高了油藏采收率
In view of the geological conditions and development characteristics of Hejian Dongying reservoir, the laboratory test and evaluation of microbial production are carried out, and the strain of high temperature resistant microorganism suitable for reservoir characteristics is optimized, and the parameters of displacement test are optimized. On the basis of laboratory tests, the demonstration and compilation of the scheme of microbial flooding on site were carried out. Through the field test of microbial flooding in 5 water injection well groups, the better oil enhancement effect has been achieved and the oil recovery rate has been further improved