海相油气地质2018，Vol.23Issue(1)：83-90,8.DOI:10.3969/j.issn.1672-9854.2018.01.010
琼东南盆地乐东—陵水凹陷中新统储层流体包裹体特征及成藏期研究
Characteristics of Fluid Inclusions and Accumulation Period of Miocene Reservoir in Ledong-Lingshui Sag of Qiongdongnan Basin
摘要
Abstract
Based on the observation of microscope and the measurement of homogenization temperature of fluid inclusions, the characteristics of fluid inclusions and the accumulation period of Miocene reservoir in Ledong-Lingshui Sag of Qiongdongnan Basin are discussed.The results indicate that the fluid inclusions are mainly distributed along the healing fissures in quartz,partly distributed in the side of quartz granules or through multiple clastic particles. The types of fluid inclusions mainly include brine inclusions, liquid hydrocarbon inclusions, gaseous hydrocarbon inclusions and gas-liquid hydrocarbon inclusions.The hydrocarbon inclusions are developed in three phases, which present yellow and blue-white fluorescence with high organic maturity. The distribution of homogenization temperatures is discontinuous and concentrates in the range of 130℃ to 150℃. According to the comprehensive analysis of characteristics and occurrence of fluid inclusions, and homogenization temperatures, it is determined that the Miocene reservoir experienced three phases of hydrocarbon filling and one phase of CO2filling, which happened in the late stage of natural gas injection, and the second and third phase of hydrocarbon filling are the main period of hydrocarbon accumulation. Combined with the burial history and thermal evolution, it can be concluded that the main period of hydrocarbon accumulation is 1.9Ma~1Ma.关键词
琼东南盆地/乐东凹陷/陵水凹陷/流体包裹体/均一温度/流体充注/成藏期Key words
Fluid inclusions/Homogenization temperature/Fluid filling/Accumulation period/Ledong Sag/Lingshui Sag/Qiongdongnan Basin分类
能源科技引用本文复制引用
高媛,曲希玉,杨希冰,尤丽,钟佳,董晓芳,曹英权,王岳鹏..琼东南盆地乐东—陵水凹陷中新统储层流体包裹体特征及成藏期研究[J].海相油气地质,2018,23(1):83-90,8.基金项目
本文受国家自然科学基金项目"幔源CO2侵位的次生油气藏响应-以松辽盆地南部为例"(项目编号:41372133)资助 （项目编号:41372133）
