DF1-1构造中深层天然气藏地质特征及成藏模式

英文篇名：The Mid depth Gas Reservoir Geological Characters and Hydrocarbon Accumulation Mode of DF1 1 Structure in Yinggehai Basin
中文刊名：断块油气田
英文刊名：Fault-block Oil & Gas Field
作者：张树林 ; 夏斌 ; 童传新
英文作者：Zhang Shulin (Guangzhou Institute of Geochemistry Chinese Academy of Sciences ; Edge Sea Geology Lab ; Guangzhou 510640 ; China) ; Xia Bin and Tong Chuanxin.
中文关键词：DF1-1构造 ; 高温高压 ; 天然气藏地质特征 ; 储盖条件 ; 成藏模式
英文关键词：DF1 1 structure ; High temperature and high pressure ; Nature gas reservoir geological characters ; Reservoir and seal condition ; Hydrocarbon accumulation mode.
出版日期：2004-11-25
机构：中国科学院广州地球化学研究所边缘海地质重点实验室 ,中国科学院广州地球化学研究所边缘海地质重点实验室 ,中国科学院广州地球化学研究所边缘海地质重点实验室
年：2004
期：06
出版单位：断块油气田

摘要

莺歌海盆地具有明显的走滑拉张特征 ,是一个高温高压盆地。盆地中央凹陷带泥拱和热流体底辟非常发育 ,为天然气运移提供了良好的通道。DF1 - 1 - 1 1井的钻探结果说明 :莺歌海盆地中深层高温高压条件下可以成藏 ,储层的好坏与沉积环境和成岩作用强度有关 ,沉积相带以低位三角洲和低水位扇为主。中深层气层CO2 含量较低 ,天然气组成具有明显的多源多阶混源复合特征。从DF1 - 1 - 1 1井看 ,中深层气层在高保真地震剖面上表现为弱亮点反射 ,气层预测的难度比浅层大。
Yinggehai basin is a high temperature and high pressure basin with distinctly striking slip extension.In the center depression strap of the basin,The mud diapir and hot fluids are grown that are good channels for nature gas migration. The DF1 1 11 drilling results show (1)hydrocarbon accumulation is ok when the mid depth stratum temperature and pressure are high in Yinggehai basin;(2)the stand or fall of reservoir is relate to sediment environment and diagenesis intensity;(3)the sediment phase straps are mostly lowstand delta and lowstand fan;(4)the content of CO 2 is few in the mid depth gas reservoir,and the characters of nature gas compose are multiple sources,multiple periods and mixed sources.(5)the seismic reflect amplitude is not very strong from the mid depth gas top interface,and forecasting mid depth gas reservoir is more difficult than shallow gas reservoir.

引文

1　龚再升,李思田南海北部大陆边缘盆地分析与油气聚集北京:科学出版社,1997 3