基于岩屑分析的海上油田储层特征描述

Reservoir characterization of offshore oilfield based on cutting analysis

为了可靠地评价海上油田开发后期的剩余油潜力,解决无岩心可用于实验分析的问题,本文采用了一套快捷、可行的实验及分析手段,将岩屑分析和数字岩心分析相结合,从老岩屑中重建出数字岩心,并通过数字岩心分析技术,准确描述储层孔隙结构特征、岩石物性特征和流体流动特征。该方法显著改善了缺乏岩心样品的海上油田储层特征描述,表征了储层渗流特征,为油田未来提高采收率研究提供了指导。

In order to evaluate the remaining oil potential in the later development stage of offshore oilfield reliably and solve the problem that no core can be used for experimental analysis.This paper use a set of fast and feasible experimental and analytical means,which combines cuttings analysis and digital core analysis to reconstruct digital core from old cuttings,by digital core analysis,the characteristics of reservoir pore structure,rock physical properties and fluid flow can be accurately described.This method can significantly improve the description of reservoir characteristics of offshore oilfield without core samples,characterizes the reservoir seepage characteristics,and provide guidance for EOR study in the future.