稠油油藏边水突进影响因素分析

Analysis on Influencing Factors of Edge Water Inrush in Heavy Oil Reservoir

稠油油藏的开发投资大、风险高,尤其在目前国际油价低迷的情况下小型边水稠油油藏的开发更是面临经济与技术双重困难。为在低投入的情况下完成小型边水稠油油藏的产量任务,实现海外项目的正现金流,开展稠油油藏边水突进影响因素研究。以海外R油田为例,充分利用油藏的天然能量,实现海外油藏开发低投入、高收益的目标;以油藏实际生产数据为基础,动静结合,摸清油藏的边水推进特征;通过研究认为优化单井日产液量,能有效控制边水推进形态,降低油井水淹程度,实现稠油边水油藏的高效开发,是国际油价低迷的情况下,海外稠油油藏保持稳产的有效措施。

Heavy oil reservoir development investment is large,with high risks,especially under the current situation of low international oil price. The development of small edge water heavy oil reservoir is facing economic and technical difficulties. In order to complete the production task of small edge water heavy oil reservoirs with low input,realize the positive cash flow of overseas projects,and carry out the research on the influencing factors of edge water inrush in heavy oil reservoirs,we take overseas oilfield R as an example to make full use of the natural energy of the reservoir and realize the goal of low investment and high profit in overseas reservoir development. Based on the actual production data of the reservoir,the characteristics of edge water propulsion in the reservoir are understood by combining the dynamic and static processes. Through the study,it is considered that optimizing the daily production of a single well can effectively control the edge water advance form,reduce the water flooded degree of oil wells,and realize the efficient development of heavy oil edge water reservoir. It is an effective measure to maintain stable production of overseas heavy oil reservoir under the condition of low international oil price.