基于成因解释的剥蚀厚度求取新模型及应用  

NEW MODEL FOR CALCULATING ERODED THICKNESSES BASED ON THE EXPLAINATION OF EROSION CAUSES AND AN APPLICATION EXAMPLE

作　　者：朱世全[1] 黄思静[1] 陈章清[2] 陈彪 罗智[4] 

机构地区：[1]成都理工大学"油气藏地质及开发工程"国家重点实验室,四川成都610059 [2]中石化江汉油田分公司开发处,湖北潜江433124 [3]江汉采油厂,湖北潜江433123 [4]中海油田服务股份有限公司油技事业部测井中心,北京101149

出　　处：《新疆地质》2006年第2期206-209,共4页Xinjiang Geology

基　　金："油气藏地质及开发工程"国家重点实验室开放基金资助项目(PLN9919)资助

摘　　要：国内外用于估算地层剥蚀厚度的方法很多,但大都有较为严格的应用限制条件.介绍了4种解释模型,充分考虑了沉积地质学原理,利用相邻两层(剥蚀层、下伏未剥蚀层)沉积速率相近这个前提条件,通过在纵剖面上对剥蚀层残余厚度及下伏未剥蚀层厚度值进行坐标投点(或网格化取值投点),分析它们的图形分布规律,不仅可以量化求取剥蚀厚度值,还可以对剥蚀层的原始沉积环境及造成剥蚀的后期改造作用,做出重要的地质成因解释.这种解释模型不需要直接给出时间值,避免了在利用其它某些方法求取时所面临的时间难题,并且由于在求解过程中利用的是数据的统计规律,故其求解结果更为科学合理.There are many methods to estimate the eroded thicknesses of strata, but methods combining the calculating process with explaination of the cause of erodes formations are relatively rare. Considering principles of sedimentation geology, utilizing the premise that two sequential layers （eroded and underneath uneroded layers） enjoy approximate deposition speeds, we plot with residual thickness values and thickness values of underneath uneroded layer in cross sections. By analyzing the diagram, we can not only obtain the eroded thickness of strata, but also explain the original sedimental environment of the eroded strata and the later structural erosion causes. The new model does not need depositional speeds encountered by other methods. By using statistics rules of data, the result can be more reasonable.

关 键 词：剥蚀厚度 残余厚度 未剥蚀厚度 成因 模型 

分 类 号：P512.2[天文地球—地质学]