珠江口盆地惠州凹陷古近系烃源岩特征及资源预测  

Characteristics of Paleogene Source Rocks and Prediction of Petroleum Resources in Huizhou Depression,Pearl River Mouth Basin

作　　者：李松峰[1] 徐思煌[1] 施和生 梅廉夫[1] 舒誉 曹婷婷[3] 

机构地区：[1]中国地质大学构造与油气资源教育部重点实验室,湖北武汉430074 [2]中海石油(中国)有限公司深圳分公司,广东广州510240 [3]中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所,江苏无锡214151

出　　处：《地球科学（中国地质大学学报）》2013年第1期112-120,共9页Earth Science-Journal of China University of Geosciences

基　　金：国家科技重大专项子课题(No.2011ZX05023-001-015);构造与油气资源教育部重点实验室开放研究基金课题(No.TPR-2010-09)

摘　　要：惠州凹陷是珠江口盆地的主要油气贡献区之一,进一步落实烃源岩特征和油气资源量对于富烃凹陷研究具有重要意义.通过对烃源岩的有机质丰度、类型、成熟度、有效厚度、有机碳恢复系数和产烃率的综合分析可知,惠州凹陷古近系上、下文昌组和恩平组均为好的烃源岩.烃源岩TOC体定量预测技术弥补了烃源岩取心少、实测样品分布不连续的不足,定量预测了不同深度和不同时间平面上的烃源岩TOC含量及变化特征,为更加准确的评价烃源岩及油气资源量奠定了良好的基础.基于TOC体定量预测技术,以三级层序为基本地层单元,采用成因法计算出惠州凹陷古近系烃源岩的油气资源总量为前一次的1.698倍,与其紧邻的古近系构造转换带,具有近源供烃的优势,显示了较大的勘探潜力.Huizhou depression is one of the major petroleum contribution areas in Pearl River Mouth basin, and it is significant to the research of abundant hydrocarbon depression with the further confirmation of source rock characteristics and petroleum resources Comprehensive analysis of the abundance, type, maturity of organic matter, effective thickness, organic carbon recovery factor and production rate, shows that Paleogene Wenchang formation and Enping formation are good source rocks. The quantitative prediction technology of source rock TOC seismic data makes up for the lack of less core and measured sample discontinuous distribution. TOC seismic da- ta predict quantitatively TO（; contents and variations in the different depths and different time planes, which has laid a good foundation for the more accurate assessment of source rocks and petroleum resources. Based on the quantitative prediction technology of source rock TOC seismic data and the basic stratigraphy unit of third-order sequence, that, petroleum resources quantities of Paleogene source rocks through the genetic method in Huizhou Depression, are 1. 698 times last one The Paleogene transfer zones which are close to source rocks have the advantage of near-source for hydrocarbons with great exploration potential.

关 键 词：有机碳 定量预测 烃源岩 资源预测 古近系 惠州凹陷 石油地质 

分 类 号：P618[天文地球—矿床学]