CAJ | 학술논문

阐述了最大主曲率法用于煤层气藏储层裂缝渗透率预测的原理，运用三维地震沿层最大主曲率属性对构造裂缝进行了预测。通过分析裂缝间距、构造最大主曲率值、岩层厚度及渗透率之间的相关关系，建立了基于最大主曲率的煤储层渗透率计算模型，该模型对某区煤层气渗透率预测的结果与测井和实验室岩心分析结果吻合较好，表明基于最大主曲率的煤储层渗透率预测方法在煤层气藏裂缝渗透率预测中的可行性和合理性。
천술료최대주곡솔법용우매층기장저층렬봉삼투솔예측적원리，운용삼유지진연층최대주곡솔속성대구조렬봉진행료예측。통과분석렬봉간거、구조최대주곡솔치、암층후도급삼투솔지간적상관관계，건립료기우최대주곡솔적매저층삼투솔계산모형，해모형대모구매층기삼투솔예측적결과여측정화실험실암심분석결과문합교호，표명기우최대주곡솔적매저층삼투솔예측방법재매층기장렬봉삼투솔예측중적가행성화합이성。
The paper introduced the principle of the application of coal reservoir permeability prediction method based on maximum principle curvature attribute of 3D seismic and predicted the structural fractures by using maximum principal curvature attribute of 3D seismic along layer. Through analyzing the mathematical function re-lation of the fracture interval, principle curvature, coalbed thickness and the fracture permeability, the calculation model of coal reservoir permeability prediction based on maximum principle curvature has been established. The permeability values derived from maximum principle curvature has fit well to the permeability values derived from well logs and coal samples. This study has shown that the permeability prediction method based on maximum cur-vature is feasible and effective to predict the coal reservoir permeability.