التفاصيل البيبلوغرافية
| العنوان: |
济阳坳陷埕岛东部地区断层特征及其与 新近系油气富集关系. |
| العنوان البديل: |
Fault characteristics and their relationships with hydrocarbon accumulation in Neogene in eastern Chengdao area，Jiyang Depression. |
| المؤلفون: |
张学才1 zxcxbktxmb@163.com, 刘华2, 张芷晴2, 杨贵丽3, 徐昊清3, 赵珊2 |
| المصدر: |
Petroleum Geology & Recovery Efficiency. 2022, Vol. 29 Issue 3, p1-10. 10p. |
| مصطلحات موضوعية: |
*PETROLEUM industry, GAS distribution, FAULT zones, PETROLEUM distribution, NEOGENE Period, PETROLEUM |
| الملخص (بالإنجليزية): |
Fault types and activities were analyzed to reveal the control of fault characteristics on differences of oil and gas enrichment in the Neogene in the eastern Cheng dao area Jiyang Depression. On this basis，3D seismic data, as well as logging and drilling data were utilized to study the fault activities during hydrocarbon accumulation and their relationships with the Neogene oil and gas enrichment in terms of the fault activity rate. Studies have shown that three types of faults are in the eastern Chengdeo area i.e oil source type oil source type Ⅱ, and adjustment faults. There are obvious differences in the activities of the three types of faults during the main accumulation periods (Minghuazhen period)：the activity rates of most oil source type Ⅰ faults oil source type Ⅱ faults and most adjustment faults are more than 15 m/Ma，10-15 m/Ma and less than 10 m/Ma respectively. The oil source faults in the study area control the differences in enrichment and spatial distribution of oil and gas in the Neogene. Zhuanghai fault zone has developed many oil source type Ⅰ and type Ⅱ faults at and activity rate greater than 10.m/Ma and the fault-caprock assemblage is favorable. A typical fault transport-vertical migration mode can be found and the degree of oil and gas enrichment is high in the Neogene. In addition oil source faults are few in the east slope of Chengdeo area with weak fault activities（10-12 m/Ma），following a fault-sand body transported migration mode. The degree of Neogene oil and gas enrichment is low and they are mostly distributed in the under⁃ lying reservoirs. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
：为了揭示济阳坳陷埕岛东部地区断层特征对新近系油气富集差异性的控制作用，以断层类型和断层活动性 分析为基础，利用三维地震数据及钻井、测井资料，使用断层活动速率法，重点分析油气成藏期断层活动特征及其 与新近系油气富集的关系。研究结果表明，埕岛东部地区发育油源Ⅰ型断层、油源Ⅱ型断层和调节断层共3种类 型断层；油气主成藏期（明化镇组沉积时期）3种类型断层的活动性存在较大差异，油源Ⅰ型断层活动速率多大于 15 m/Ma，油源Ⅱ型断层活动速率为10～15 m/Ma，调节断层活动速率多小于10 m/Ma。研究区油源断层控制了新近 系油气的富集程度和空间分布差异，桩海断裂带发育较多活动速率大于10 m/Ma的油源Ⅰ型和Ⅱ型断层，且断-盖 配置有利，为典型的断层输导-垂向运移模式，新近系油气富集程度高；而埕岛东部斜坡带油源断层分布少，断层活 动性较弱，断层活动速率为10～12 m/Ma，为断层-砂体输导-阶梯式运移模式，新近系油气富集程度低，油气多分布 于新近系下伏储层。 [ABSTRACT FROM AUTHOR] |
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