Title

THE MIDDLE JURASSIC SEDIMENTARY EVOLUTION AND PETROLEUM POTENTIAL OF THE MOHE BASIN

作者

吴河勇辛仁臣杨建国

Authors

WU He-yong XIN Ren-chen YANG Jian-guo

单位

中国地质大学, 北京 100083 2. 中国石油大庆油田有限责任公司勘探开发研究院, 黑龙江大庆 163712 3. 石油大学盆地与油藏研究中心, 北京昌平 102200

Organization

China University of Geosciences, Beijing 100083, China 2. Exploration & Exploitation Institute of Daqing oil field Corp. Ltd., Daqing, Heilongjiang 163500, China 3. The University of Petroleum, Beijing 102200, China

摘要

对漠河盆地中侏罗统绣峰组、二十二站组、额木尔河组及开库康组露头剖面详细沉积学研究,查明漠河盆地绣峰组为冲积扇、扇三角洲及湖泊沉积,二十二站组和额木尔河组为辫状河三角洲和湖泊沉积,开库康组为冲积扇、扇三角洲及湖泊沉积,湖底扇和湖泊相在各组均有发育。从绣峰组到开库康组,具有冲积扇-扇三角洲-湖泊—辫状河-辫状河三角洲-湖泊—冲积扇-扇三角洲-湖泊的沉积演化规律。这一沉积演化规律决定了漠河盆地中侏罗统生油气层、储层、盖层均较发育,具有油气勘探潜力。

Abstract

The detail sedimentation study of the Middle Jurassic outcrops consisting of Xiufeng,Er-shierzhan,Emuerhe and Kaikukang formations respectively,indicated that alluvial fan,fan delta,braided river delta,lake floor fan and lacustrine facies were developed from Xiufeng to Kaikukang formations in the Middle Jurassic of the Mohe Basin.The alluvial fan and fan delta facies were developed in the Xiufeng formation,the braided river delta in the Ershierzhan and Emuerhe formations,alluvial fan and fan delta in the Kaikukang formation,and lake floor fan and lacustrine facies in all above formations.The sedimentary evolution from Xiufeng to Kaikukang formation was as alluvial fan fan delta lacustrine to braided river braided river delta lacustrine to alluvial fan fan delta lacustrine.Such a sedimentary evolution resulted in the development of source rocks,reservoirs and cap rocks.Therefore,there is petroleum potential in the Middle Jurassic of the Mohe Basin.

关键词：

油气远景; 沉积演化; 中侏罗统; 漠河盆地;

Keywords:

petroleum potential sedimentary evolution the Middle Jurassic the Mohe Basin;

基金项目

国家重点基础研究发展规划"973"项目(G19990433).

DOI

https://doi.org/10.11781/sysydz200302116

漠河盆地中侏罗统沉积演化及含油气远景