火山岩气藏储层综合评价与气藏工程优化  

Comprehensive evaluation of volcanic rock gas reservoir and optimization of gas reservoir engineering

作　　者：秦学成[1,2] 段永刚[1] 杨媛媛[2] 刘昕[2] 陈雨[2] 

机构地区：[1]西南石油大学,四川成都610500 [2]中国石化华东分公司石油勘探开发研究院,江苏南京210011

出　　处：《油气藏评价与开发》2011年第5期29-33,39,共6页Petroleum Reservoir Evaluation and Development

摘　　要：火山岩气藏地质结构极其复杂,具有多火山体多期次喷发交互叠置、岩性岩相变化快、厚度变化大、非均质性极强、连续性及可对比性差等特点。针对松南火山岩气藏地质特征复杂和开发难度大的特点,通过开展岩性岩相、储层物性、裂缝发育程度、储层压敏性以及井型等因素对气藏产能的影响研究,认为采用不均匀井网形式,"水平井与直井(初期评价井)组合、稀井高产、高密低稀、高渗开采低渗"的滚动部署方式开发火山岩气藏是可行的。The Volcanic rock gas reservoir is characterized with extremely complex geological structure, several volcanic bodies reciprocally superposing in different periods, sharp variations of lithology and lithofacies, various thickness, serious heterogeneity, poor continuity and poor contrast property. Due to the complex geologic characteristics and huge development difficulty of Songnan volcanic rock gas reservoir, and according to the research on the impact of lithology, lithofacies, physical property of volcanic reservoir, degree of fracture development, pressure sensitivity of reservoir and well types on gas reservoir deliverability, this paper deemed that asymmetrical well network that was the rolling deployment of ＂horizontal wells mixed with vertical wells （initial appraisal wells）, thin high-yield wells, high-density and low-thin, hypotonic hypertonic extraction＂ was feasible for the development of volcanic rock gas reservoir.

关 键 词：火山岩 气藏 储层评价 气藏工程优化 

分 类 号：TE371[石油与天然气工程—油气田开发工程]