过套管电阻率测井评价储集层含油气变化特征  

Cased-hole resistivity logging reservoir evaluation of petroleum feature changes

作　　者：程希[1] 任战利[1] 

机构地区：[1]西北大学地质学系/大陆动力学国家实验室

出　　处：《西北大学学报（自然科学版）》2008年第3期462-466,共5页Journal of Northwest University（Natural Science Edition）

基　　金：中国石油天然气集团公司基金资助项目(04A30302)

摘　　要：目的应用过套管电阻率测井资料定性寻找漏失油层,定量判断油层水淹程度以及裸眼井中天然气水合物转换为天然气的扩散半径。方法在开发井中,当油层在未水淹和水淹情况下,根据裸眼井和套管井中储层电阻率和含油饱和度的相对变化,寻找漏失油层及判断油层水淹程度;在天然气水合物评价中,应用正演迭代方法,确定天然气扩散半径。结果通过该技术判断漏失油层及评价油层水淹程度,与试油、试采结果是一致的。结论预处理后的过套管电阻率测井资料与其他资料结合,可用于油气层开采开发的动态监测及天然气水合物开采。Aim Toapply cased-hole resistivity logging technology for qualitative oil leakage,quantitative judgment for reservoir water level and conversion of gas volume of natural gas hydrate.Methods By open hole and cased hole relative changes of resistivity and reservoir oil saturation under reservoirs flooding and not flooding,the degree reservoir exploitation was determined and finally the iterative methods of its applications in natural gas hydrate mining was introduced.Results Testing for oil production is consistent with Cased-Hole Resistivity Logging technology judging oil leakage and the water reservoir evaluation.Conclusion After pretreatment for data combined with other information,through casing resistivity log technology can be used for reservoir development of the mining dynamic monitoring and natural gas hydrate mining.

关 键 词：过套管电阻率测井 开采指数 剩余油饱和度 水淹级别 天然气水合物 

分 类 号：P631.8[天文地球—地质矿产勘探]