苏北盆地上白垩统泰州组烃源层评价  

An evaluation of the source bed in Upper Cretaceous Taizhou Formation,Subei basin

作　　者：陈安定[1] 宋宁[1] 王文军[1] 

机构地区：[1]中国石油化工股份有限公司江苏油田分公司地质科学研究院

出　　处：《中国海上油气》2008年第1期28-33,共6页China Offshore Oil and Gas

摘　　要：苏北盆地泰州组烃源层是国内少有的上白垩统烃源层,其有机质丰度高,干酪根类型为偏腐泥型,处于低熟—成熟演化阶段。尽管泰州组烃源层厚度较薄（20～30m）,但近年来的勘探已发现9个由泰州组烃源层供烃的油藏。泰州组烃源层与电阻率“六尖峰”段相对应,该特征代表了发育于半深湖—深湖、半咸水—咸水环境、以化学成因为主的泥质碳酸盐岩及其有机质形成特征。As an Upper Cretaceous source rock rare in China,the source bed in Taizhou Formation,Subei basin,is high in organic matter abundance,sapropelic in kerogen type and lower mature-mature in thermal evoluation.The recent exploration has indicated that 9 oil reservoirs are charged by the source bed,although it is quite thin（20～30 m）.The source bed is corresponding to a resistivity interval of ＂six peaks＂,which may represent a hemi-deep to deep lacustrine environment with brackish to salt water,where argillaceous carbonate and organic matter can deposit mainly by a chemical process.

关 键 词：苏北盆地 上白垩统 泰州组 烃源层 

分 类 号：P534.53[天文地球—古生物学与地层学] P618.130.2[天文地球—地质学]