摘要
自储层精细地质描述技术在大庆油田萨北开发区全面推广应用以来,解决了现阶段油田开发调整中的一些问题,但在北三西葡一组聚驱开采中发现,在大面积分布的河道砂体中,处在河道某些部位的注采井之间原属一类连通,但注入井注入状况不好,油井采出状况也不太好。经进一步研究表明,在这些大面积分布的河道砂体中还存在单一河道砂体边界。针对这种情况,在北三西展开了单一河道砂体的追踪。在研究过程中主要采取两点做法:一是根据砂体切割关系首次对复合砂体进行分类,从而有利于单一河道识别后对复合砂体内部连通关系的认识;二是提出了定量参数与定性参数相结合的单一河道识别方法,从而提高了单一河道识别的可操作性。
Since reservoir fine geology description technology has fully applied for Sabei development region in Daqing Oilfield,reservoir fine geology research has resolved many problems occurred at present oilfield development stage.However,during polymer flooding in PuⅠFormation of Beisanxi area,it is found among the widespread distributed channel sand,certain injectors and producers have bad performance though they locate in some parts of channel belonging to the same type of connectivity.Further research indicates that,single channel sand body boundary exists within widespread distributed channel sands,so trace of single channel sand body in Beisanxi area is then carried out.Two major methods are adopted in the course of research: first according to sand body crosscutting relationship,compound sand body was classified for the first time in favorable of understanding interconnectivity of compound sand body after identification of single channel sand body;second,an identification method binding quantitative and qualitative parameters has been concluded to enhance identification operability for single channel sand body.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2006年第4期18-20,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
储层描述
复合砂体
单一河道
识别
reservoir description
compound sand body
single channel
identification
