摘要
苏里格气田苏X区块盒八段是典型的致密砂岩气藏,随着不断生产,储层非均质性制约勘探开发的问题愈显突出。为了更好地勘探优质储层,实现气田的高效开发,在确定区块盒八段为辫状河沉积的基础上,利用岩心、孔渗分析化验、测井解释等资料,同时结合生产资料对盒八段层内、层间和平面非均质性进行了系统研究,并分析影响储层含气和产能的影响因素,为区块单井产量解释提供了依据。结果表明:研究区块盒八段储层发育广泛,但优质储层规模小。区块盒八段储层层内非均质性均较强,盒八段中上部层间非均质性和层面非均质性强于盒八段底部。较高的孔隙度、渗透率和较低的泥质含量是优质储层含气的前提,较低的分层系数和夹层密度是储层高产的关键。研究结果可为优质储层的勘探部署提供依据,为后续开发提供参考。
He8 Member of Su X Block in Sulige Gas Field is a typical tight sandstone gas reservoir.With the continuous production,the problem of reservoir heterogeneity restricting exploration and development has become more and more prominent.In order to better explore the high-quality reservoirs and realize the efficient development of gas field,the intralayer,interlayer and plane heterogeneity of the He8 Member are researched systematically by using core,porosity and permeability analysis and logging interpretation and production data based on determining that the He8 Member of the block is braided river deposits.The factors affecting the gas content and productivity of the reservoirs are analyzed.It provides a basis for the interpretation of the single well production in the block.The results show that the reservoirs of He8 Member in the study block is widely developed,but the scale of high-quality reservoirs is small.The intralayer heterogeneity of reservoirs in He8 Member of the block is strong,and the interlayer heterogeneity and plane heterogeneity in the middle and upper part of He8 Member are stronger than those at the bottom of He8 Member.Higher porosity,permeability and lower shale content are the prerequisites for high-quality gas-bearing reservoirs.Lower stratification coefficient and interlayer density are the key to high productions of the reservoirs.The research results can provide a basis for the exploration and deployment of high-quality reservoirs and a reference for subsequent development.
作者
王飞
Wang Fei(Oil Production Engineering Research Institute of Daqing Oilfield Co.,Ltd.,Daqing Heilongjiang 163453;Heilongjiang Provincial Key Laboratory of Oil and Gas Reservoir Stimulation,Daqing Heilongjiang 163453)
出处
《中外能源》
CAS
2023年第2期41-50,共10页
Sino-Global Energy
关键词
苏里格气田
盒八段
宏观非均质性
优质储层
隔夹层
Sulige Gas Field
He8 Member
macroscopic heterogeneity
high-quality reservoir
interlayer
