| |
|
【英文篇名】 |
Reconstruction of
Paleo-Pasage System of Chang 8 Formation in
Longdong Area, Ordos Basin |
|
【作者】 |
陈占坤;
吴亚生;
罗晓容;
陈瑞银; |
|
【英文作者】 |
CHEN Zhankun;
WU Yasheng;
LUO Xiaorong CHEN Ruiyin Institute of Geology
and Geophysics;
Chinese Aeademy of Sciences;
Beijing;
100029; |
|
【作者单位】 |
中国科学院地质与地球物理研究所;
100029; |
|
【刊名】 |
地质学报 ,
Acta Geological Sinica,
编辑部邮箱
2006年 05期
期刊荣誉：中文核心期刊要目总览 ASPT来源刊 中国期刊方阵 CJFD收录刊 |
|
【关键词】 |
陇东地区;
长8段;
沉积微相;
成岩作用; |
|
【英文关键词】 |
longdong area;
chang8 formation;
sedimentary microfacies;
diagenesis; |
|
【摘要】 |
结合岩心、测井资料,认为陇东地区沉积砂体主要为水下分流河道、河口坝砂体。结合成岩作用分析及成岩序列划分,认为在早白垩世末最大排烃期后,主要有连晶方解石对粒间物质和粒缘的交代、强酸性流体对杂基和粒缘的溶蚀及长石溶蚀三种成岩作用。综合沉积成岩作用分析,在早白垩末最大排烃期,油气运聚的优势通道在镇原—西峰—庆阳一带。 |
|
【英文摘要】 |
Through
comprehensive study on the cores and well logs,
the author believes that the sandstone mainly
comes from subaquatic distributary channel and
mouth-bar. Since a great deal of oil and gas was
expelled from source rock, three diagenesis
happened, calcite cementation, dissolution of
feldspar, the matrix corrosion by acid.
Considering the sedimentation and diageneses,
during the period a great deal of was expelled,
the migration path mainly lies in the area of
xifeng, qingyang and zhenyuan. |
|
【基金】 |
国家重点基础研究发展计划“973”项目(编号2003CB2146000)资助的成果。 |
|
【DOI】 |
cnki:ISSN:0001-5717.0.2006-05-014 |
|
|
|
|