牛东火山岩油藏岩性识别技术及应用

THE IDENTIFICATION TECHNOLOGY AND ITS APPLICATION FOR LITHOLOGY OF NIUDONG VOLCANIC RESERVOIR

牛东石炭系火山岩油藏是吐哈油田发现的第一个火山岩油藏,岩性复杂多变,准确识别岩性对储层识别显得尤为重要,也是划分火山岩喷发期次、识别岩相、建立储层参数解释模型、综合评价储层的基础。本文在测井响应特征分析的基础上,结合各种取心、录井资料,分三步建立牛东火山岩岩性识别模式,取得了较好效果,为同类油田进行火山岩岩性识别提供借鉴作用。

Niudong Carboniferous volcanic reservoir was the first volcanic reservoir discovered in Turpan-Hami Oilfield.The rock is complex,so accurate identification of lithology is particularly important to the reservoir identification,also is the basis for deviding volcanic eruption periods、identifing rock facies,establishing reservoir parameters of interpretation model、 comprehensive evaluation of the reservoir.Based on the response characteristics of logging,the paper established the identification model of Niudong volcanic rocks by three steps,with combination of coring and logging data,which have achieved good results and provided reference for identification of volcanic rocks for the same oil field.