CAJ | 학술논문

以流花地区珠江组碳酸盐岩储集层抽提物 GC、GC ／MS 分析为基础，结合区域构造运动史、地层水动力特征等，分析了该区埋藏酸性流体的成因与来源，探讨了“白垩状”灰岩的形成以及该区的埋藏酸性流体溶蚀模式。研究认为，埋藏酸性流体主要来自惠州凹陷文昌组烃源岩热演化成因有机酸，原油生物降解成因有机酸，岩浆活动生成的 CO2等酸性流体。“白垩状”灰岩是在活跃油田底水环境下，主要由有机酸性流体长期溶蚀、浸泡和淘洗作用的结果。埋藏酸性流体以东沙构造运动形成的深大断裂及伴生的复杂裂缝网络为运移通道和物质交换空间，在流花低势汇流的强水动力条件下，与碳酸盐岩发生强烈的酸—岩反应，造成地层溶蚀垮塌，形成了现今流花地区灰岩坑的分布面貌。研究还排除了该区灰岩坑大气淡水溶蚀作用和白云岩化溶蚀作用成因的可能性。
이류화지구주강조탄산염암저집층추제물 GC、GC ／MS 분석위기출，결합구역구조운동사、지층수동력특정등，분석료해구매장산성류체적성인여래원，탐토료“백성상”회암적형성이급해구적매장산성류체용식모식。연구인위，매장산성류체주요래자혜주요함문창조경원암열연화성인유궤산，원유생물강해성인유궤산，암장활동생성적 CO2등산성류체。“백성상”회암시재활약유전저수배경하，주요유유궤산성류체장기용식、침포화도세작용적결과。매장산성류체이동사구조운동형성적심대단렬급반생적복잡렬봉망락위운이통도화물질교환공간，재류화저세회류적강수동력조건하，여탄산염암발생강렬적산—암반응，조성지층용식과탑，형성료현금류화지구회암갱적분포면모。연구환배제료해구회암갱대기담수용식작용화백운암화용식작용성인적가능성。
This paper discussed the origin and source of acid fluids under burial condition,brought forward the new un-derstanding of chalky limestones and the scheme model of burial dissolution by using GC and GC /MS to analyze extracts from Zhujiang carbonates,and investigated the regional tectonics and the dynamic characteristics of the formation water. We concluded that the acid fluids originated mainly from ① pyrolysis of source rock from Huizhou depression ② biodegra-dation of crude oil ③CO 2 and other acid fluids released from magmatism.The forming of chalky limestone was related to the continuous corrosion,soaking and washing by organic acid fluids.The burial acid fluids took the faults and complex fracture networks caused by the Dongsha movement as the migration channel and space for mass exchange,the strong acid-carbon-ate rock reaction took place under the active ground water condition of the Liuhua area,and then carbonate strata col-lapsed and the distribution of sink holes of the Liuhua area were formed.In addition,the possible causes of sinkholes-mete-oric corrosion and dolomitization corrosion had been excluded after a systematic discussion.