CAJ | 학술논문

以黔北震旦系灯影组为例，基于流体包裹体均一温度、盐度及密度数据，结合埋藏史与热史恢复，探讨流体活动期次，恢复油气成藏与破坏过程。研究区共经历了4个含烃流体活动期，对应流体包裹体均一温度分别为87.1～111.4℃、126.1～163.0℃、166.9～225.1℃和95.3～116.4℃，反映灯影组储集层经历了两期油气充注、1期天然气充注和晚期气藏破坏活动。薄片观察、阴极发光及氧同位素综合分析表明，灯影组储集层发育6个世代胶结物、4期白云石，经历了4期溶蚀作用，不同埋深环境下流体活动带来的有机酸对早期古岩溶残余孔隙及充填物具有复合叠加溶蚀作用。黔北灯影组经历3个油气成藏期，依次为加里东中晚期（距今470～428 Ma）、印支期（距今252～228 Ma）和燕山早期（距今177～145 Ma），3600 m埋深可能是黔北灯影组天然气藏保存的理想深度。图5表3参30
이검북진단계등영조위례，기우류체포과체균일온도、염도급밀도수거，결합매장사여열사회복，탐토류체활동기차，회복유기성장여파배과정。연구구공경력료4개함경류체활동기，대응류체포과체균일온도분별위87.1～111.4℃、126.1～163.0℃、166.9～225.1℃화95.3～116.4℃，반영등영조저집층경력료량기유기충주、1기천연기충주화만기기장파배활동。박편관찰、음겁발광급양동위소종합분석표명，등영조저집층발육6개세대효결물、4기백운석，경력료4기용식작용，불동매심배경하류체활동대래적유궤산대조기고암용잔여공극급충전물구유복합첩가용식작용。검북등영조경력3개유기성장기，의차위가리동중만기（거금470～428 Ma）、인지기（거금252～228 Ma）화연산조기（거금177～145 Ma），3600 m매심가능시검북등영조천연기장보존적이상심도。도5표3삼30
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.