摘要
针对测井信号是井下地层信息综合反映的特点,结合小波分析原理,深入分析了离散小波变换分解后的测井信息与岩性、岩相、孔隙结构、流体性质等地质特征的对应关系,并根据典型井的资料建立了相应的水淹层定性评价模型。对评价井测井信息进行逐层分解,突出由于储层流体性质变化而引起的测井信息差异,达到对储层水淹情况进行评价的目的。在油田的实际应用证实了该模型具有充分利用资料、节约成本、操作简单以及符合现场实际的优点和推广应用的价值。
The corresponding relationship among the well logging information and lithology, lithofacies, pore structure and fluid property were analyzed deeply, which was combined with the wavelet analysis principle. The relative qualitative assessment model of water - out reservoir was built up by using typical well's information. For evaluating the reservoirs flooding and standing out the difference of well logging resulted by the qualitative changes of fluid,the evaluation well's information was decompounded layer - by - layer. The application approves that the model has preferable deployment value because of the advantage of making the most use of information, saving cost, operating easily and fitting to the reality.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2007年第6期59-61,115,共3页
Petroleum Geology and Recovery Efficiency
关键词
水淹层评价
小波分析
定性评价模型
测井信息
water flooded layer evaluation, wavelet analysis, qualitative evaluate model, logging information
