CHARACTERISTICS OF VOLCANIC ROCK RESERVOIRS IN THE LINSHANG AREA OF THE HUIMIN SAG
-
摘要: 文中运用火山岩岩心资料、测井资料、孔渗及压汞分析等资料对渤海湾盆地惠民凹陷临商地区沙一段火山岩储层的特征进行了深入研究,认为该区火山岩储层以火山角砾岩与凝灰岩为主,它们在测井响应上具有不同的特征.火山岩储集空间主要为粒间孔、溶蚀孔及构造缝,孔隙结构具有小孔细喉、孔喉连通性与分选性差的特点,这是导致岩石孔渗相关性不好的内在因素.火山岩相影响着火山岩储集空间的发育,火山碎屑流相中上部及爆发坍落相顶部为有利的储集相带,是今后寻找火山岩油藏的主要勘探目标区.Abstract: Core description,well logging interpretation,porosity and permeability data and mercury-injection curves were used in this paper to study the char cteristics of volcanic rock reservoirs in the Sha 1 Member of Linshang area,the Huimin Sag,the Bohaiwan Basin.The volcanic rock reservoirs in this area were mainly composed of volcanic breccia and tuff,and they had different response characters on logging curves.The reservoir spaces of volcanic rocks included intergranular pores,solution openings and structural fractures.The pore structure was characterized by small pores and thin throats and bad pore-throat connectivity and sorting degree,which were the inner factors to result in the bad correlationship between porosity and permeability.Volcanic rock facies affected the development of reservoir spaces of volcanic rocks,and the middle-upper part of volcanic clastic facies and the top of explosion talus facies were the best favorable facies zones for accumulation.And they are the main exploration targets in searching for the oil and gas pools of volcanic rocks in the future.
-
Key words:
- pore structure /
- lithofacies /
- volcanic rock /
- Linshang area /
- the Huimin Sag /
- the Bohaiwan Basin /
-
[1] 刘泽容,信荃麟,王永杰,等.山东惠民凹陷西部第三系火山岩油气藏形成条件与分布规律[J].地质学报,1988,62(3):210-222. [2] 张亚范,邢志贵,杜韫华,等.中国油气储层研究图集(三)[M].北京:石油工业出版社,1994.23-72. [3] 郭齐军,万智民,焦守诠,等.火山岩储集层的研究——以北堡地区为例[J].石油实验地质,1997,19(4):338-339. [4] 邱家骧,陶奎元,等.火山岩[M].北京:地质出版社,1996.10-22. [5] 赵澄林,刘孟慧,胡爱梅,等.特殊油气储层[M].北京:石油工业出版社,1997.10-18. [6] 李丕龙.富油断陷盆地油气环状分布与惠民凹陷勘探方向[J].石油实验地质,2001,23(2):148. [7] 郭占谦.从全球油气田分布看我国东南沿海火山岩覆盖区的含油气前景[J].石油实验地质,2001,23(2):124-125.
点击查看大图
计量
- 文章访问数: 707
- HTML全文浏览量: 41
- PDF下载量: 313
- 被引次数: 0