石油勘探与开发Issue(3)：313-322,335,11.DOI:10.11698/PED.2014.03.06
黔北震旦系灯影组流体活动与油气成藏期次
Fluid activity and hydrocarbon accumulation period of Sinian Dengying Formation in Northern Guizhou, South China
摘要
Abstract
By taken the Sinian Dengying Formation in Northern Guizhou as an example, based on the data from homogenization temperature, salinity and density of fluid inclusions, and combined with the restoration of burial history and thermal history, this paper investigates hydrocarbonaceous fluid activity periods and restores the process of hydrocarbon accumulation and destruction. Four periods of hydrocarbonaceous fluid activity periods occurred in the research region, and they correspond to the homogenization temperature of fluid inclusions of 87.1-111.4℃, 126.1-163.0℃, 166.9-225.1℃and 95.3-116.4℃respectively, reflecting two stages of hydrocarbon charge, one stage of gas accumulation and gas reservoir destruction activity in Dengying Formation reservoir. Comprehensive analysis on observation of thin sections, cathodoluminescence and oxygen isotope show that, Dengying Formation reservoir developed six generations of cements, four stages of dolomite, and had four stages of dissolution, the organic acids from fluid activities in different buried environment produced multiphase dissolution on residual pores and fillings of the ancient karst. Dengying Formation in Northern Guizhou occurred three periods of petroleum accumulation which are, in order, Middle-Late Caledonian (470-428 Ma), Indo-Chinese epoch (252-228 Ma), Early Yanshanian period (177-145 Ma), and the ideal depth for the preservation of natural gas accumulation in Dengying Formationn in Northern Guizhou is about 3 600 m.关键词
震旦系灯影组/油气成藏期次/流体包裹体/流体活动/白云石化作用Key words
Sinian Dengying Formation/hydrocarbon accumulation period/fluid inclusion/fluid activity/dolomitization分类
能源科技引用本文复制引用
杨平,谢渊,汪正江,李奇艳,刘家洪,张娣,杨智,印峰..黔北震旦系灯影组流体活动与油气成藏期次[J].石油勘探与开发,2014,(3):313-322,335,11.基金项目
中国地质调查局项目 （）
