西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 14-17.DOI: 10.3863/j.issn.1000-2634.2008.06.004

• 地质勘探 • 上一篇    下一篇

利津—民丰Es4-Ek气源岩生烃时空有效性分析

蔡东梅1,2 蒋有录1 刘华1 徐昊清1 孙立东3   

  1. 1.中国石油大学地球资源与信息学院,山东 东营 257061; 2.中国石油大学资源与信息学院,北京 昌平 102249;3.大庆油田有限责任公司勘探开发研究院,黑龙江 大庆 163712
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

THE RESEARCH ON THE TIME AND SPACE VALIDITY OF HYDROCARBON GENERATION IN Es4-EkGAS SOURCE ROCKS,LIJIN AND MINFENG AREA

CAI Dong-mei1,2 JIANG You-lu1 LIU Hua1 XU Hao-qing1 SUN Li-dong3   

  1. 1.College of Georesources and Information,China University of Petroleum,Dongying Shandong 257061,China;2.Faculty of Resource and Information Technology,China University of Petroleum,Changping Beijing 102249,China;3.Exploration and Development Research Institute,Daqing Oilfield Limited Liability Company,Daqing Heilongjiang 163712,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 根据热流史的恢复结果对利津—民丰地区沙四上亚段、沙四下亚段第一、二、三套和孔二段5套主力气源层的成烃史进行了研究。热流史恢复结果表明,自新生代以来,古地温梯度呈逐渐下降的趋势,孔一早期为5.28℃/100m,降至现今为3.60℃/100m;不同层段、不同构造部位的气源岩演化具有明显的差异性,沙四上亚段气源岩现今开始大量生油和伴生气;沙四下亚段第一套气源岩主要生裂解气时期为馆陶组沉积末期至今;孔二段气源岩主要生裂解气时期为沙一沉积时期至今。

关键词: 利津—民丰地区, 气源岩, 热演化, 成烃史

Abstract:

Based on the hydrothermal history reconstruction,the hydrocarbon generation history is investigated for Es4Ek formation,Lijin and Minfeng area.The

hydrocarbon history reconstruction shows that the paleogeothermal gradients decreased from Cenozoic era on,the value was 5.28℃/100m at the late stage of Kongdian

Formation and then decreased to the present value averaging 3.60℃/100m.The gas source rocks evolution are various in different formations and tectonic positions,the

associated gas generation stage of upper Es4 gas source rocks starts at the the present,the pyrolysis gas generation stage of lower Es4 gas source rocks has prolonged

from late Guantao Formation deposition to now and the pyrolysis gas generation stage of Ek2 gas source rocks has lasted from Es1 group deposition to nowadays.

Key words: Lijin and Minfeng area, gas source rocks, thermal evolution, hydrocarbon generation history

中图分类号: