特种油气藏地质特征

Geological characteristics of special oil and gas reservoirs

根据油气生烃的环境、成藏的特殊条件、储集岩岩性和物性、油气的物理性质、油气存在的相态、特殊开采方式等,将特种油气藏划分为6个不同的系列,并对各种油气藏的地质特征进行了概述,并得出了一些启示。特种油气藏体系的建立,使多种单一的特种油气藏种类有了系列归属,改变了较分散的局面,将有利于抓住各系列特种油气藏的主要特征,全面认识和描述现今尚存的复合型特种油气藏。中国的特种油气藏种类较多,尚待开发的资源丰富,研究结果对深层次的资源调查具有借鉴作用。所得出的重要启示,将有助于石油企业做出科学的决策。

This paper classifies special oil and gas reservoirs into 6 different series, describes the geological characteristics of various reservoirs according to hydrocarbon generation environment, accumulation conditions, reservoir rock lithology and property, physical properties of oil and gas, phases of hydrocarbon occurrence and special recovery method, and yields some implications. The establishment of special oil and gas reservoir system is helpful to the understanding and description of some compound reservoirs. China has numerous types of special oil and gas reservoirs which have rich resources yet to be developed. This study is a reference to in-depth resource investigation, and its implication may help oil industry to make scientific decisions.