利用测井资料识别杭锦旗地区上古生界下石盒子组储层流体性质  

Using Logging Data to Identify Properties of Paleozoic Sandstone Reservoir Fluid in Hangjinqi Area

作　　者：彭真[1] 赵京红[1] 刘文辉[1] 

机构地区：[1]中国石化集团华北石油局测井公司,河南郑州450000

出　　处：《工程地球物理学报》2013年第2期216-220,共5页Chinese Journal of Engineering Geophysics

摘　　要：杭锦旗地区构造上位于鄂尔多斯盆地伊盟北部隆起带,属于典型的低孔、低渗、低产致密砂岩气藏,主要储集层为下石盒子组。随着杭锦旗地区勘探开发步伐的加快,有必要进一步深化其主力产气层段的测井评价技术。由于杭锦旗地区岩石组成、孔隙结构复杂,地层水矿化度分布差别较大,对储层流体性质进行准确识别比较困难。本文通过利用侵入特征判别法、孔隙度曲线重叠判别法、含气指示判别法和声波实验判别法来综合判别杭锦旗地区上古生界储层流体性质,得到了较好的应用效果。Hangjinqi area lies in the Yimeng northern uplift of the Ordos Basin,where the structure is gas reservoir which is typical of low porosity and low permeability,low-yielding tight sandstone.The main reservoir is in Lower Shihezi.With the exploration and development of Hangjinqi area,it is necessary to further deepen logging and evaluation techniques of the main productive gas segment.Due to the complex rock formation and complex porosity structure,the differences of the formation water salinity distribution are big and it is difficult to accurately identify the nature of the reservoir fluid.This paper applied invasive characteristic discriminant method,porosity curves overlap discriminant method,gas indicating discriminant method and sonic experiment discriminant method to comprehensively identifying the properties of Paleozoic sandstone reservoir fluid in Hangjinqi area and achieved a good result.

关 键 词：杭锦旗地区 鄂尔多斯盆地 流体性质识别 下石盒子组 

分 类 号：P631.4[天文地球—地质矿产勘探]