基于岩控统计模型的储层孔渗解释方法研究  

RESERVOIR POROSITY AND PERMEABILITY INTERPRETATION BASED ON THE STATISTICAL MODEL

作　　者：周晓阳[1] 李凡华[2] 徐林华[3] 付宇[4] 于家义 

机构地区：[1]长江大学地球科学学院 [2]中国石油勘探开发研究院油气田开发研究所 [3]山东科技大学机械电子工程学院 [4]北京科技大学土木与环境工程学院 [5]中国石油吐哈油田分公司勘探开发研究院

出　　处：《国外测井技术》2010年第6期33-35,3,共3页World Well Logging Technology

摘　　要：三塘湖油田西山窑组为＂低孔、低渗、低压、高粘＂复合圈闭砂岩油藏,属于辫状河-三角洲前缘沉积,成南北向带状分布,河道分叉,改道频繁,砂体横向变化剧烈,储层非均质性强,地质认识和测井解释困难。本文在岩电对比和目的层岩性精细刻画的基础上,提出了基于岩控的孔渗二次解释模型,进而建立相对高渗透条带的预测方法及平面相展布,形成了一套适于本区块低渗透砂岩油藏储层认识的新方法,为开发方案的编制及调整提供可靠的地质基础。Santanghu oilfield Xishanyao group is a'low porosity,low permeability,low pressure,high viscosity'composite trap sandstone reservoir, which belongs to braided river - delta front deposition,banded distribution in north-south,but because of riveral bifurcation and continual diversion,horizontally,the sand body changes frequently and reservoir heterogeneity is strong.In addition,the knowledge of prior-period geological characteristic is so general and the logging explanation is so inaccurate as to a later bad development result.For that reason,fine reservoir Description is both inevitable and necessary.On the basis of lithology-electricity contrast and fine lithology depict,this article proposes a second lithology-controlled interpretation model to porosity and permeability,and thus establishes the forecasting methods of relative high permeability band and areal distribution,forms a new and innovative method which is suited to low permeability sandstone reservoir,and provides a reliable geological basis for the organization and adjustment of development plan.

关 键 词：复合圈闭 非均质性 岩性精细刻画 岩控 相对高渗透条带 

分 类 号：TE353[石油与天然气工程—油气田开发工程]