利用测井资料识别火成岩岩性的方法

Distinguishing igneous rock lithology by logging data

研究了大庆地区 2 7口井的深层测井资料、录井资料、岩心及岩屑分析资料 ,总结了火成岩各种岩性在测井曲线上的响应规律 ;利用识别火成岩岩性效果较好的解释图版 ,编制计算机识别岩性的程序 ,综合多个测井参数识别岩性 .实例解释与岩心分析资料的对比表明 ,应用该方法识别火成岩岩性判断符合率达到 85 %以上 .

We have studied deep well logging data, logging data,core and cutting analysis data of 27 wells in Daqing area, and summarized response law of every litholigy of igneous rock. Using interpretation chart which has good effectiveness in distinguishing igneous rock lithology, and compiling distinguishing program, the paper uses several well parameters to distinguish lithology comprehensively. The instance interpretation and comparing with core analyzing data show that this method has obtained satisfying result in distinguishing igneous rock lithology, the coincidence is above 85%.