机构地区: 中国石油大学北京石油工程学院石油工程教育部重点实验室
出 处: 《大庆石油地质与开发》 2010年第1期33-37,共5页
摘 要: 低渗复杂断块油藏一般含油面积较小,由于砂体小而多,储量动用程度低,油层非均质性严重,横向变化大,连通性差,油藏类型多,油水界面多,沉积类型复杂、多变,油层物性差,油气水分布关系复杂,使得油藏开发的初期地质认识的难度大。以贝中次凹南一段的地质特征和开发中获得的资料为基础,运用油藏工程方法,通过对贝南一段储层岩性、物性、敏感性等特征的研究,对其进行注水开发的可行性分析论证。在此基础上,通过油藏数值模拟技术研究包括注水方式、天然能量利用与注水时机等开发方式对断块油藏开发效果的影响,从不同开发方式驱油特征的角度分析了造成开发效果差异的原因。研究结果对低渗断块油藏的早期开发设计具有一定的借鉴作用,将有助于提高此类油藏的开发水平。 Based on the geological features and development of South Segment No. 1 of Beizhong Subsag and through the studies of reservoir lithology, physical properties, sensitivity and the other characteristics, the feasibili- ty analysis of water flooding is discussed using reservoir engineering method. On the basis of the above, with the help of the studies of numerical simulation techniques including water injection mode, natural energy usage and wa- ter flooding opportunity and so on, the influences of the above development schemes on the operation effects of the faulted block oil reservoir are researched and furthermore from the oil-driven characteristics of different development models, the reasons resulting in development effects differential are analyzed. The study results will be helpful for the early development design of low - permeability faulted-block oil reservoirs and will improve the development level of this kind of oil reservoir.
关 键 词: 低渗透 复杂断块 注水开发 天然能量 储层敏感性 数值模拟
领 域: [石油与天然气工程]