歧北地区深层储层特征及影响因素分析  

Characteristics of Deep Reservoirs in Northern Qikou Region and Their Influential Factors

作　　者：谢锐杰[1] 张喜[1,2] 漆家福[3] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023 [2]吐哈油田公司开发处,新疆哈密839009 [3]中国石油大学(北京),北京102249

出　　处：《石油天然气学报》2010年第3期47-50,共4页Journal of Oil and Gas Technology

基　　金：湖北省教育厅青年基金项目(Q200512003)

摘　　要：歧北地区沙一下亚段发育了一套深水重力流水道沉积。为了预测其有利储层,在沉积相研究的基础上,利用岩石薄片、阴极发光、扫描电镜、X-衍射、镜质体反射率等手段,研究储层的岩石特征、成岩作用及成岩演化阶段,分析储层的特征及其控制因素。研究表明:储层的沉积相、成岩作用和异常压力直接影响了深层储层的储集物性,它们是预测有利储层的主要依据,其中该区最有利沉积相带是重力流主水道;有利的压力系数在1.2～1.6之间;次生孔隙最发育的埋深为3400～3600m和3700～4000m。There developed a sedimentary system mainly containing deep-water aqueduct of mass flow in lower member of Es1 in the north of Qikou Region,on the basis of research results of the sedimentary facies,lithological properties,diagenesis and its evaluation stages were mainly studied by means of rock thin section,cathodology,SEM,X-ray diffraction,as well as vitrinite reflectance.The result indicates that the sedimentary facies and diagenesis and abnormal pressure directly affect the physical property of the deep reservoirs,it is the evidence for predicting favorable reservoirs.The most favorable sedimentary facies is the main aqueduct of mass flow;the most favorable pressure factor is between 1.2 and 1.6;the buried depth of the most favorable secondary pore occurs between 3400m and 3600m,and between 3700m and 4000m.

关 键 词：歧北地区 下第三系 储层特征 次生孔隙 成岩作用 

分 类 号：P618.13[天文地球—矿床学]