Analysis of Remaining Oil Distribution and Influencing Factors in B Development Zone

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Li, YanBing^1

Third Oil Production Plant, Daqing Oilfield, Daqing, Heilongjiang

163000, China^1

关键词: Clastic materials;    Controlling factors;    Development effect;    Fault dislocation;    Key controlling factors;    Reference values;    Remaining oil distribution;    Research and analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/4/042032/pdf
DOI  :  10.1088/1755-1315/237/4/042032

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Faults are well developed in development area B of Songliao Basin, the development effect is poor. The main reason is that the distribution law of remaining oil and its controlling factors in this area are not well understood. In view of this problem, this paper carries out research and analysis on the basis of relevant data. It is considered that the remaining oil is mainly distributed vertically in the sand-rich layer and horizontally in the intersection of faults, the end of faults, the footwall of reverse faults and the sand-rich area far from faults. Further analysis shows that faults are the key controlling factors of remaining oil distribution in this area. They are shown in two aspects: one is fault sand control, i.e. soft-link and hard-link fault transition zones control the channel of sand body into lake, and then control the enrichment area of sand body. A few sand-rich areas far from faults actually occur on faults. When faults upper plate generating tilt, clastic material is formed by long-distance transportation, which is also the result of fault influence; secondly, the oil control by sealing faults, that is, a large set of mudstones above S reservoir group are dragged into faults in the process of fault dislocation, resulting in good lateral sealing, which is conducive to oil enrichment. This study has a good reference value for tapping the potential of remaining oil in this area.