大厚高压油藏物理模型饱和度分布测量方法  

Investigating the Saturation Distribution Measurement Method for the Physical Model of High-pressure and Large-thick Reservoirs

作　　者：裴柏林[1] 曾鸣[2] 刘程[1] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京昌平102249 [2]中国石油大学(北京)机电工程学院,北京昌平102249

出　　处：《西南石油大学学报（自然科学版）》2013年第1期135-139,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：当前针对物理模型饱和度分布的研究主要针对于一维小岩样和二维小薄模型,针对大厚高压油藏物理模型的方法无人涉及。针对大厚高压油藏物理模型的特点,选取γ射线吸收法和lambert定律进行单个测试点的饱和度测量和计算,然后利用二维数控移动定位系统完成对整个物理模型所有测试点饱和度的测量和计算,最终利用数学插分方法得到油藏物理模型的饱和度分布等值线图,实现对大厚高压油藏二维饱和度分布的预测。通过单点精确度实验及简单验证实验研究表明,利用γ射线吸收法预测大厚高压油藏二维饱和度分布可行性强。Current research on saturation distribution of physical model focuses on the one-dimensional small rock sample and two-dimensional thin model, and research on high-pressure and large-thick reservoirs model has been involved. In this paper, the timing stable gamma ray test to each model grid node is implemented with high precision two-dimension Computerized Numerical Control （CNC） mobile positioning system, and then the saturation of each grid node is calculated through Lambert Law. Afterwards, reservoir saturation profile is obtained using mathematical drawing method and the prediction of saturation distribution measurement in high-pressure and big-thick reservoir physical model is finally realized. After a single point testing and a simple replication experiment, this method is proved to be feasible and accurate and significant to predict the saturation distribution of high-pressure and large-thick reservoir model.

关 键 词：油藏物理模拟 饱和度分布 大厚高压油藏 γ射线测量法 

分 类 号：TE311[石油与天然气工程—油气田开发工程]