Reservoir Space Characteristics of Carboniferous Volcanic Rocks in the Central-East Part of Junggar Basin, NW China
详细信息
- 责任者：Lei Dewen (Institute of Petroleum Exploration and Development ; Xinjiang Oilfield Company ; PetroChina ; Karamay 834000 ; China) ; Yang Disheng
- 刊名：Xinjiang Geology
- 出版年：2013
- 卷期：31(3)
- 关键词：结晶岩类储集层 ; crystalline reservoirs ; 准噶尔盆地 ; Junggar Basin
- 页码：p.231-235
- 图表：3 illus., 2 tables, 13 refs.
- 分类号：1003
- issnNo：ISSN1000-8845
- isbnNo：CN65-1092/P
摘要
Integrated with core observation,microscopic identification,scanning analysis and imaging logging,this study classified reservoir spaces of the Carboniferous volcanic rocks in the Junggar Basin and described their assemblage characteristics.The results indicate that volcanic reservoir includes three main space types: primary porosity,second porosity and fracture,which can be divided further into 4 types of primary porosity,5 types of second porosity,and 4 types of fracture,and the latter two space types play significantly important roles in improving volcanic reservoir property.Three assemblage models of reservoir spaces are identified :structure fracture-dissolution fracture-dissolution porosity;primary pore-structure fracture-dissolution fracture-dissolution porosity;intercrystalline pore-primary porosity-structure fracture-dissolution porosity.The assemblages of reservoir spaces are characterized by the diversities of type,geometric configuration,distribution and structure as well as low connectivity and highly fracture improving.