徐深气田火山岩储层类型与主控因素研究  

RESEARCH OF THE VOLCANIC ROCK RESERVOIR TYPES AND MAIN CONTROL FACTORS IN XUSHEN GAS FIELD

作　　者：覃豪[1] 李红娟[1] 李军[2] 张超谟[2] 

机构地区：[1]大庆油田公司勘探开发研究院,黑龙江大庆136712 [2]长江大学,湖北荆州434023

出　　处：《国外测井技术》2009年第4期15-18,3,共4页World Well Logging Technology

摘　　要：本文在对岩心资料、录并资料、常规测井及成像测井资料综合研究的基础上，对徐深气田火山岩储层类型进行了研究，说明火山岩相、不整合面和构造裂缝是影响火山岩储层最重要因素。有利火山岩相带和不整合面结合是形成层状优质储层最关键条件，有利火山岩相带顺序是：近源蒸汽涌流相、溢流相顸部和底部、热火山碎屑流、粗粒空落相、远源涌流相和细粒空落相。在离不整合面井段近处，溶蚀作用较强，容易形成优质储层。在离不整合面或喷发间歇面较远处，高角度-斜交构造裂缝是形成有效储层的必要条件。Based on synthetic study of core,mud logging,conventional logging and imaging well logging data,the volcanic rock reservoir types in Xushen gas field are researched.It is showed that volcanic rock facies,unconformity surface and tectonic fissures are the most important factors which affect volcanic rock reservoirs.Combination of favorable volcanic rock facies zone and unconformity surface is the essential condition to form a good stratiform reservoir.The sequence of favorable volcanic rock facies zone from good to bad is proximal steam rush flow facies,top and bottom of spill facies,heat pyroclastic flow,coarse-grain vacancy falling facies,far source rush flow facies and granule vacancy falling facies.Near the unconformity surface hole section,chemical erosion is serious and easy to form a high-quality reservoir.Far from the un(?)onformity surface or erupt intermission surface,high angle-skew tectonic fissures are the indispensable condition to form an effective reservoir.

关 键 词：火山岩储层 控制因素 火山岩相 不整合面 裂缝 原生孔隙 溶蚀孔洞 

分 类 号：P588.14[天文地球—岩石学] P618.13[天文地球—地质学]