摘要
丘陵-鄯善交界区域三间房组位于丘陵构造和鄯善构造接合部位的断层破碎带上,地层分布复杂,油水关系不清,为了解决这一问题,该文紧密结合丘陵和鄯善油田现有开发层系的划分方案,合理部署地层对比剖面,深入分析各种测井响应特征,采用"旋回对比,分级控制"原则,根据不同级别的标志层将研究区三间房组划分为2个油组、5个砂组、25个单砂层。同时对每口井各砂层组地层厚度和单层砂体厚度进行了分析,研究了其在剖面和平面上的展布规律。并根据油田实际情况,选取砂体钻遇率、砂层平均厚度、砂地比及砂体分布形态4项指标为标准,将各个单层砂体分为Ⅰ、Ⅱ、Ⅲ等3类。
The Sanjiangfang Formation was located in the crush zone of the junction region between Qiuling- Shanshan Depression with complex stratigraphic distribution and unclear oil- water relationship. Based on closely combination of the division plan of available development layers in Qiuling-Shanshan Oilfields for rational arrangement of correlation section,the response characteristics of different log curves were analyzed deeply and in terms of the principle of 'cycle correlation and hierarchical control',the Sanjianfang Formation in study area was divided into 2 oil groups,5 sand sets and 25 single sand units according to different grades of marker beds. At the same time,the thickness of all sand sets and single sand units of each well were analyzed,and the distribution law on the cross section and plane were studied. According to the practical situation of the oilfield,the drilling ratio of sandbody,the average thickness of sandbody,the thickness percent of sandstone and the distribution shape of sandbody are taken as the standards,all of single sand units are divided into three types: Ⅰ,Ⅱand Ⅲ.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第2期186-190,共5页
Journal of Oil and Gas Technology
关键词
丘陵-鄯善构造
三间房组
地层对比
砂体展布
Qiuling-Shanshan Depression
Sanjianfang Formation
stratigraphic correlation
distribution of sandbody
