| 黄骅坳陷歧口凹陷新生界火山岩孔隙类型、孔隙结构特征及分类评价 |
| |
| 引用本文： | 王乃军,罗静兰,郭永峰,李双文,刘华清.黄骅坳陷歧口凹陷新生界火山岩孔隙类型、孔隙结构特征及分类评价[J].现代地质,2013(1):200-207. |
| |
| 作者姓名： | 王乃军 罗静兰 郭永峰 李双文 刘华清 |
| |
| 作者单位： | 西安石油大学地球科学与工程学院;西北大学大陆动力学国家重点实验室;中国石油勘探开发研究院西北分院 |
| |
| 基金项目： | 中国石油重大科技专项(2008-030504);国家自然科学基金项目(41272138);西安石油大学青年科技创新基金项目(2010QN006);陕西省教育厅科研计划项目(12JK0480) |
| |
| 摘 要： | 综合利用大量的岩心观察、岩石薄片、铸体薄片和压汞实验等资料,对渤海湾盆地黄骅坳陷歧口凹陷新生界火山岩孔隙类型和孔隙结构进行了研究,并对孔隙结构进行了分类评价。研究结果表明,歧口凹陷新生界火山岩孔隙类型主要有原生孔隙与次生孔隙两大类,原生孔隙主要包括气孔与残余气孔、火山角砾间孔和原生缝隙,次生孔隙主要包括溶蚀孔(洞、缝)、构造裂缝和风化裂缝。储层孔隙结构分为5种类型:Ⅰ型、Ⅱ型为较好储层,岩性主要为辉绿岩,其次为凝灰岩;Ⅲ型为中等储层,岩性主要为辉绿岩,其次为玄武岩;Ⅳ型为较差储层,岩性主要为玄武岩;Ⅴ型为非储层,岩性主要为凝灰岩。Ⅲ型所占比例最高,达52%,其次是Ⅱ型,Ⅰ型、Ⅳ型、Ⅴ型所占比例较小。
|
| 关 键 词： | 孔隙类型 孔隙结构 火山岩 新生界 歧口凹陷 |
Characteristics of Pore Types,Structures and Classification of Volcanic Rocks in Cenozoic of Qikou Sag,Huanghua Depression |
| |
| WANG Nai-jun,LUO Jing-lan,GUO Yong-feng,LI Shuang-wen,LIU Hua-qing.Characteristics of Pore Types,Structures and Classification of Volcanic Rocks in Cenozoic of Qikou Sag,Huanghua Depression[J].Geoscience——Journal of Graduate School,China University of Geosciences,2013(1):200-207. |
| |
| Authors: | WANG Nai-jun LUO Jing-lan GUO Yong-feng LI Shuang-wen LIU Hua-qing |
| |
| Institution: | 1.School of Earth Sciences and Engineering,Xi’an Shiyou University,Xi’an,Shaanxi 710065,China; 2.Key Laboratory for Continental Dynamics of Education Ministry,Northwest University,Xi’an,Shaanxi 710069,China; 3.Research Institute of Exploration and Development,Northwest Branch,PetroChina,Lanzhou,Gansu 730022,China) |
| |
| Abstract: | The pore types and structures of volcanic rocks in Cenozoic of Qikou Sag,Huanghua depression in Bohai Bay Basin were researched using a large amount of data from core observation,ordinary slices,cast slices and the hydrargyrum injection experiments,and the pore structures were classified and evaluated.The results indicate that the pores of volcanic rocks include primary and secondary pores.The primary pores include stomatas,residual stomatas,inter-gravel pores and primary fractures,and the secondary pores include dissolved pores(holes,fractures),structural fractures and weathering fractures.The diabase has larger pore and throat,worse sorting and better connectivity;the basalt has middle pore and throat,moderate sorting and worse connectivity;the tuff has smaller pore and throat,better sorting and moderate connectivity.Pore structures of reservoirs are divided into five types: types of Ⅰ and Ⅱ are better reservoirs,which are dominated by diabase and tuff;type Ⅲ stands moderate,which is mainly diabase and secondly basalt;type Ⅳ is the worst one,which is mainly diabase;type Ⅴ is nonreservoir,which is mainly tuff.Type Ⅲ has the highest proportion with a rate up to 52%,followed by type Ⅱ,and types ofⅠ,Ⅳ and Ⅴ have smaller proportion. |
| |
| Keywords: | pore type pore structure volcanic rock Cenozoic Qikou sag |
| 本文献已被 CNKI 等数据库收录！ |
|
