定边东韩长2油层组复杂油水层识别技术  

Recognition technology of the complicated oil and water layers in Chang 2 oil-bearing formation of Donghan area in Dingbian oilfield

作　　者：申怡博[1] 张小莉[1] 孙佩[1] 郭兰[1] 

机构地区：[1]西北大学地质学系,陕西西安710069

出　　处：《西北大学学报（自然科学版）》2010年第1期121-125,共5页Journal of Northwest University（Natural Science Edition）

基　　金："十一五"国家科技支撑计划基金资助项目(2007BAB1701)

摘　　要：目的研究定边东韩地区长2油层组复杂油水层的识别。方法以常规测井系列为基础,配合实验分析结果,采用计算自然电位-自然电位重叠图法,交会图逐步判别法以及岩石热解实验的方法。结果重叠图法是油水识别快速直观显示的有效方法;交会图逐步判别法可识别出不同类型的油水层,精度随数据点的增加而提高;岩石热解实验法不依赖电阻率参数可识别油水层。结论利用常规测井资料,合理选取参数并进行优化处理,可以有效识别非常规油水层,提高解释的准确度。Aim To recognize the complicated oil and water layers in Chang 2 oil-bearing formation of Donghan area in Dingbian oilfield.Methods Based on the conventional logging suite,with the result analysis of comparative experiment,adopting the methods of PSP-SP overlapping,crossplot stepwise discriminant analysis and PHC experiment.Results The overlapping is a quickly visual display of methhods which effectively distinguished the oil and water;the crossplot stepwise discrimiomt analysis can identify different kinds of oil and water,and the aocuracy grow with the data source;the PHC experiment is active and effective as it is independent of resistivity log parameters.Conclusion By the use of conventional well logging data,the para meters are appropriately selected and optimized the unconventionality oil and water layers are effectively distinguisbed,and the degree of accuracy of interpretation procedure has been improved.

关 键 词：定边 低阻油层 测井解释 油水识别 

分 类 号：P319.32[天文地球—固体地球物理学]