苏里格气田桃2井区下古气藏开发潜力评价

Evaluation of Development Potential of Tao2 Well Area in Sulige Gas Field

通过选取气层厚度、孔隙度、渗透率和含气饱和度这4个参数对储层进行综合评价,并最终建立了研究区马五段储层分类标准。按照该区气田成藏条件及制约因素,选择以沉积相、区域构造为基础,以储层综合评价结果、试气产量为线索,对该区储层进行优选,分别选出研究区马五段各小层中Ⅰ类和Ⅱ类有利富集区。针对研究区的开发现状参考靖边气田的生产经验,建议延长无水采气期,确定气井合理产能,提高井网对储量的控制和层间接替。

By selecting gas thickness,porosity,permeability and gas saturation four parameters,comprehensive evaluation of the reservoir was carried out,and classification standard of Ma5 reservoir in the study area was ultimately established.In accordance with reservoir forming condition and restriction factors,based on sedimentary facies,regional structure,comprehensive evaluation result and well test rate,optimal selection of the reservoir was carried out,classⅠandⅡfavorable rich regions were selected.Aiming at development status quo of the research area,referring to Jingbian gas field production experience,an advice to extend water-free gas production period was proposed,reasonable gas well production capacity was determined.