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莺-琼盆地的独特埋藏史
引用本文:陈红汉,孙永传,叶加仁,张启明.莺-琼盆地的独特埋藏史[J].中国海上油气,1994(5).
作者姓名:陈红汉  孙永传  叶加仁  张启明
作者单位:中国地质大学!湖北武汉430074(陈红汉,孙永传,叶加仁),中国海洋石油南海西部公司!东湛江524057(张启明)
基金项目:国家自然科学基金资助课题
摘    要:通过沉积速率线性外推剥蚀厚度恢复、脱压实和异常高压以及古水深校正的单井埋藏史和连井埋藏剖面及构造沉降分析,发现莺-琼盆地是个多旋回沉积盆地,其沉积物埋藏过程可分为早期缓慢浅埋和晚期快速深埋两大阶段.这种独特的埋藏历史不仅是储层孔隙增生与保存的主要控制因素之一,而且极大地影响了烃源岩于酪根热解反应路径、烃类的运移和聚集,异常高压的发育以及所发生的复杂的水(气)—岩相互作用.涸11-4油田位于南海北部湾盆地涸西南凹陷,距广西北海市103km,离涸10-3油田17km.油田于1993年9月19日投产,目前开发形势较好,产量、压力稳定.在开发实践中我们体会到,要提高油田开发水平,搞好油藏监测是非常重要的.1钻井和完井过程中的油藏监测

关 键 词:莺-琼盆地  埋藏史  沉积速率  线性外推  异常高压校正

UNIQUE BURIAL HISTORY OF YING-QIONG BASIN
Chen Honghan,Sun Yongchuan,Ye Jiaren et al..UNIQUE BURIAL HISTORY OF YING-QIONG BASIN[J].China Offshore Oil and Gas,1994(5).
Authors:Chen Honghan  Sun Yongchuan  Ye Jiaren
Abstract:Through the analysis of single well burial history and structural subsidence in Ying-Qiong Basin,South Chian Sea,which have been established on basis of the depositional rate linear extrapolation method for restoration of erosional thicknesses and corrections of overpressures for decompaction and paleowater depth,it is found that the basins have two circles of development,and their burial history can be divided into two stages:the earlier slow shallow burial and the later fast deep burial. This special burial history had a great influence on kerogen pyrolysis reaction path in source rocks,hydrocarbon migration and accumulation which are also relative to the water/rock in terac-tion carried out in reservois.
Keywords:Ying-Qiong basins  burial history  depositional rate  linear extrapolation method  correction of overpressure and paleowater depth
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