石油与天然气地质 ›› 1999, Vol. 20 ›› Issue (2): 160-163.doi: 10.11743/ogg19990215

• 论文 • 上一篇    下一篇

昌图凹陷层序地层与油气储层预测

王洪亮, 邓宏文   

  1. 中国地质大学能源系, 北京 100083
  • 收稿日期:1998-12-22 出版日期:1999-06-25 发布日期:2012-01-18

SEQUENCE STRATIGRAPHY AND RESERVOIR PREDICTIONOF CHANGTU DEPRESSION

Wang Hongliang, Deng Hongwen   

  1. Department of Energy Resources, China University of Geoscieces, Beijing
  • Received:1998-12-22 Online:1999-06-25 Published:2012-01-18

PDF (PC)

747

被引次数

10

摘要：

昌图凹陷九佛堂组-阜新组可划分出3个中期基准面旋回:MSC1,MSC2和MSC3.除MSC1旋回为一对称旋回外,其它两个旋回均只发育上升半旋回。经井-震对比,这3个中期旋回与地震剖面上划分出的SA,SB和SC有很好的对应关系。经分析,MSC1中扇三角洲前缘沼泽化的煤层、浅湖相泥岩和MSC3中最大洪泛期暗色泥岩是最有利的烃源岩;各旋回中的扇三角洲前缘亚相和水下扇扇中亚相是较好的储集相带。今后的油气勘探中,应将MSC3上升半旋回的中上部和MSC1上升半旋回作为主要的勘探层系。

关键词: 层序地层, 基准面旋回, 储层预测, 昌图凹陷

Abstract:

The Jiufutang Fuxin Formations could be divided into MSC1, MSC2 and MSC3 medium term base level cycles, among them MSC2 and MSC3 are elevated semi-cycles.These three cycles correspond well to SA,SB and SC recorded in seismic sections.Accordimg to well drilling and seismic data,the marsh coal-bed in fan-delta front and shallow lake mudstone of MSC1 and the flood dark mudstone of MSC3 are most favourable source rocks;fan-delta front subfacies and subaqueous medium fan subfacies of every cycle are good reservoir facies.It is suggested that the middle and upper parts of MSC3 and MSC1 elevated semi-cycles should be taken as the main exploration sequences.

Key words: sequence stratigraphy, base-level cycle, reservoir prediction, Changtu Depression