摘要
在地质综合研究基础上，运用地质、力学等理论和方法，总结了宁海油田坨62、坨89断块微型构造的类型、特征和配置模式，分析了微型构造的成因和微型构造对剩余油分布的影响。结果表明，研究区主要发育3种微型构造和6种微型构造配置模式；构造作用的持续性和底层砂体起伏变化对顶层砂体形态的影响导致微型构造具继承性；断层作用和沉积微相控制微型构造的形成，当上升盘、下降盘发生正牵引或逆牵引作用时，在紧邻断层、远离断层处形成不同类型的微型构造，沉积砂体的厚度和差异压实作用也影响微型构造的形成；油水的密度差异和油层的微细起伏特征影响油水的重新分布，剩余油主要富集在正向微构造和顶底双凸型配置模式区。
Based on comprehensive geological research, by using geological, mechanical and other theories and methods, micro-structure types and their characteristics and configuration models are summed up for Fault Tuo 62 and Fault Tuo 69 in Ninghai Oilfield. Analysis on the causes of micro-structure and their impact on remaining oil distribution are also performed. Results show that three types of micro-structure and six types of configuration patterns developed in studied area. Continuity of Tectonism, as well as impact of relief of bottom sand body on the shape of top sand body, leads to inherited micro-structures. Faulting and sedimentary microfacies control the formation of micro-structures. When upcast side or downcast side have normal or reverse drag, different types of microstructures form in the areas adjacent to and away from faults. Thickness of sedimentary sandstone and differential compaction also affect the formation of micro-structures. Oil and water density difference and characteristics of the micro-relief of reservoir have impact on re-distribution of oil and water. Remaining oil is mainly concentrated in the micro-structures and top-bottom dual-convex configuration pattern areas.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2009年第2期40-44,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
教育部留学回国人员科研启动基金资助项目（2007年）.
关键词
宁海油田
微型构造
成因分析
断层作用
剩余油分布
Ninghai Oilfield
micro-structure
genetic analysis
faulting
remaining oil distribution
