基于实时录井资料提高录井解释符合率的研究及应用

Research and application of improving mud logging interpretation coincidence rate based on real-time mud logging data

渤海油田已进入“精细勘探”阶段,利用地质录井第一手资料对油气显示层进行准确快速评价意义越来越重要,然而录井解释符合率低的现象却普遍存在,如何提高录井解释精度成为急需解决的难题。通过对近两年已钻探井分析,选取测、录井解释差异化较严重的典型井,以作业现场最基本的气测录井、岩屑录井、荧光录井以及地化录井资料为基础进行分析研究,创新建立气测值类比分析法、特征法及含油系数法,形成一套现场油气水层快速解释评价流程,有效提高了储层录井解释精度,很好地解决了录、测井解释差异化严重的问题。

Bohai Oilfield has entered the stage of"fine exploration".It is more and more important to accurately and rapidly evaluate the oil and gas showing layers by using geological logging firsthand information.However,the low coincidence rate of mud logging interpretation is common,and how to improve the accuracy of mud logging interpretation has become an urgent problem to be solved.Through the analysis of wells drilled in recent two years,select typical wells with serious differences in well logging and mud logging interpretation,analyze and study based on the most basic gas logging,cuttings logging,fluorescent logging and geochemical log data at the working site,innovate and establish gas logging value analogy analysis,characteristic method and oil-bearing coefficient method,form a set of on-site rapid interpretation and evaluation process of oil,gas and water layers,effectively improve the accuracy of reservoir mud logging interpretation,and well solve the problem of serious differences between mud logging and well logging interpretation.