鄂尔多斯盆地镇泾地区中生界油气成藏主控因素分析

2007年 14卷 第03期
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Analysis of ma in control factor of Mesozoic oil and
gas accumulation in Ordos Basin of Zhenjing region
王 震1 李仲东1 惠宽洋2 吴永平1
W ang Zhen,Li Zhongdong,HuiKuanyang, et al
1 成都理工大学油气藏地质及开发工程国家重点实验室, 四川成都610059; 2 华北分公司研究院, 河南郑州450006
State Key Laboratory of Oil and Gas
Reservoir Geology and Explo itation, Chengdu University
of Technology, Chengdu 610059, China
在镇泾地区已探明油藏特征及邻区西峰油田的基础上, 从研究区中生界构造、烃源岩、砂体展布特征等成藏控制因素进行综合分析, 认为该区中生界烃源岩厚度总体上较邻区西峰油田差, 油气纵向上运移动力不足。构造反转对油气成藏没有明显影响, 但其形成的构造特征对局部成藏有控制作用。优势相与含油气性的好坏有关, 但不是成藏与否的决定因素砂体与区内微构造叠合部位形成的圈闭应该是油气有利聚集地区, 圈闭才是控制研究区成藏的关键因素。
Based on the character istics of proven o il reservoir and
X ifeng O ilfie ld, th is paper ana ly zes the contro l fac to r of oil
and gas reservo ir - fo rm ing, inc lud ing M esozo ic tecton ic
evo lution and source rock and sed im enta ry. On the who le, the
thickness o f Zhen jing source rock is wo rse than that in X ifeng
O ilfie ld, the dynam ic of vertica l m ig ration is no t enough, the
structure overturn does not influence on the o il and gas
reservo ir- form ing , but the form ed character istic of structure
contro ls o il and gas reservo ir. A lthough the cond itions o f
hydrocarbon supply and pe trophysica l paoperty are related
w ith predom inace sedim entary face, it is not the ma in contro l
factor. The overlap o f sand bod ies and m in i structure form the
trap wh ich shou ld be the better zone o f o il and gas
accumu lation From the above points, the autho r considers the
trap is the key contro lling factor.
鄂尔多斯盆地 镇泾地区 油藏类型 成藏主控因素 圈闭;
Ordos Bas in, Zhen jing reg ion, o il reservo ir
type, m a in contro lling fac to r, trap;