AD地区沙河子组致密气储层烃源岩测井评价方法研究

摘要

Below the volcanic rocks of AD Area Yingcheng Formation stored dense gas,it was developed from a variety of source rocks (mudstone,coal,peat mixed layer),and there were some difference from general dense(oil) gas source rock,and because the formation of dense oil and gas was closely related with the source rock,mature,high quality,with a certain thickness and distribution of the source rock was a dense oil and gas evaluation of the material basis,it was necessary to establish a set of the source of the source rock quality evaluation method.Establishment of organic carbon content(TOC) calculation model、establishment of vitrinite reflectance(Ro) model,the logging evaluation method of hydrocarbon source rock suitable for Shahezi Formation in AD Area was studied.The results show that:the average error of several calculation models is within the allowable range,this method is feasible.%在AD地区营城组火山岩的下面储存有致密气,它是由多种烃源岩(泥岩、煤层、泥煤混层)发育而来的,与一般的致密(油)气烃源岩存在差异,又因为致密油气的形成与烃源岩密切相关,成熟、优质、具有一定厚度和分布范围的烃源岩是致密油气评价的物质基础,因此需要建立一套适应该区的烃源岩品质评价方法.通过建立有效源岩评价标准、有机碳含量(TOC)计算模型、镜质体反射率(Ro)计算模型,对适合AD地区沙河子组的烃源岩测井评价方法进行研究.研究结果表明,几个计算模型平均误差均在允许范围内,此套方法可行.