Natural Gas Prospecting by Using Satellite MT Data in Chishui Area,Guizhou

Oil-gas remote sensing information is obtained from satellite TM data through graphic treatment in the light of the hydrocarbon-microseepage theory.The nine target areas (of three types)selected on this basis concide well with the occurrence of natural gases and have been proved by subsequent prospecting .Plants in the target greas are characterized.as a result of hydrocarbon-microseepage,by abnormal spectral features with the absorption peaks of chlorophyll shifting toward blue light,reflectivity in the range of visible light increasing and reflectivity in the near infrared region decreasing.     

赤水地区二叠系及三叠系碳酸盐岩油气储集岩层研究

通过岩芯及露头研究，结合部分测井资料，系统研究了赤水地区二、三叠系储集岩岩石类型及其储集性能，主要储集空间类型及孔隙演化特征，探讨了各类储层的主要控制因素。研究发现三叠系非均质性较强，但纵横向上仍有一些可对比的储集层段。如以T2rl^1为代表的孔隙型储层。以及以T1c^21,t1c^1为代表的裂缝一孔隙型储层。二叠系储层的存在取决于构造裂疑发育带，断层发育带、地震异常带等三有利部位。岩溶储层的发育与否必须考虑到地层厚度的异常变化。三叠系储层主要受控于发育在膏盐层下的潮间带中粒屑滩微相的粒屑云岩的溶蚀作用和白云岩化作用。构造作用同时也促使了白云岩化的发育，t1c^21-T1c^11层的白云岩层厚度决定了其储集性能。