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洼38块东二段属于层状边水普遍稠油油藏,由于地质条件复杂,油藏含油饱和度低,加之开发初期对储层认识不清,在开发方式上采用大段合采,油藏开发效果差。2006年以来,在精细地质研究的基础上,开展了利用水平井技术开发该油藏的可行性研究。现场实践表明,水平井技术可有效地改善油藏的开发效果,实现了区块年产油量稳定增长,油藏采收率得到大幅度提高,这对于同类油藏的开发具有较高的借鉴价值。
Due to complex geological conditions, oil saturation in oil reservoirs is low. In the early stage of development, the reservoirs were not well understood. In the development mode, a large section of combined oil and oil was used Poor development of Tibet. Since 2006, on the basis of fine geological studies, a feasibility study has been carried out to develop the reservoir using horizontal well technology. The field practice shows that the horizontal well technology can effectively improve the development effect of the reservoir and achieve a steady increase of annual oil production and a substantial increase of oil recovery, which is of great reference to the development of similar reservoirs value.