摘要
东海盆地西湖凹陷Y气田花港组深层致密气藏岩性复杂、孔渗差异大且优质储层主控因素不明,为致密气藏开发带来了难题。基于岩芯、测井、扫描电镜及物性数据等试验结果,对Y气田岩石学、沉积微相、断裂、储层发育特征及其主控因素进行了系统研究。研究表明,沉积微相控制储层初始储集条件,且气田内存在多条通源断层,有利于改善其储集性能,溶蚀、压实、胶结等成岩作用是控制储层物性的关键因素,便于对储层进一步分析刻画,储层主控因素的分析为预测致密气藏优质储层的展布奠定了坚实基础,为气田后续研究提供了有利支撑。
The deep tight gas reservoir in the Huagang Formation of the Y gas field in the Xihu Depression of the East China Sea Basin has complex lithology,significant differences in porosity and permeability,and unknown main controlling factors for high-quality reservoirs,which poses challenges for the development of tight gas reservoirs.Based on experimental results such as core,logging,scanning electron microscopy,and physical property data,a systematic study was conducted on the petrology,sedimentary microfacies,faults,reservoir development characteristics,and main controlling factors of Y gas field.Research has shown that sedimentary microfacies determine the original storage conditions of reservoirs,and the presence of multiple source faults in gas fields is conducive to improving their storage performance.Diagenesis such as dissolution,compaction,and cementation are key factors controlling reservoir properties,facilitating further analysis and characterization of reservoirs.The analysis of the main controlling factors of reservoirs lays a solid foundation for predicting the distribution of high-quality reservoirs in tight gas reservoirs and provides favorable support for subsequent research in gas fields.
作者
郝梦楠
HAO Mengnan(Institute of Exploration and Development,Shanghai Offshore Oil&Gas Company of SINOPEC,Shanghai 200120,China)
出处
《河北地质大学学报》
2025年第1期45-54,共10页
Journal of Hebei Geo University
关键词
致密气藏
花港组
储层特征
主控因素
tight gas reservoir
Huagang group
reservoir characteristics
main controlling factors
