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CHARACTERISTICS OF OIL AND GAS MIGRATION AND ACCUMULATION IN THE PINGHU STRUCTURAL BELT, XIHU DEPRESSION, EAST CHINA SEA
Author(s): HU Fen, YE Jiaren, LIU Junhai
Pages: 95-
102
Year: 2003
Issue:
1
Journal: MARINE GEOLOGY & QUATERNARY GEOLOGY
Keyword: 流体包裹体; 碳同位素组成; 油气运聚; 平湖构造带; 西湖凹陷;
Abstract: 平湖构造带是东海西湖凹陷的一个次级构造单元,是油气勘探的重点区域之一.应用流体包裹体及碳同位素组成等研究了构造带内的油气运聚特征,并与凹陷内的另一个主要油气聚集带--浙东中央背斜带的油气运聚特征进行对比.研究表明,平湖构造带经历了2期油气充注过程,其中第1期主要充注液态烃,第2期主要充注气态烃,充注时间相对较晚,且第1期古地温低于第2期;构造带内油气运移以侧向运移为主,该区是有利的油气运移指向区.
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