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| 安塞油田延长组储集层特征及物性影响因素分析 | |
| 引用本文： | 赵虹,党犇,党永潮,姚韦萍.安塞油田延长组储集层特征及物性影响因素分析[J].地球科学与环境学报,2005,27(4):45-48. |
| 作者姓名： | 赵虹 党犇 党永潮 姚韦萍 |
| 作者单位： | 1. 长安大学,地球科学与国土资源学院,西安,710054 2. 长庆油田分公司,第一采油厂,陕西,延安,716000 3. 中国石油集团测井有限公司,长庆事业部,西安,710201 |
| 基金项目： | 国家973项目（2003CB214601） |
| 摘 要： | 通过研究区内大量岩心铸体薄片及物性等资料分析，对安塞油田延长组主要产油层组长2和长6储集层的岩石学特征、孔渗特征及孔隙类型等进行了深入研究，分析了影响储层储集性能的主要因素。结果表明：三角洲平原亚相沉积的长2储层和三角洲前缘亚相沉积的长6储层均具矿物成熟度低而结构成熟度高的岩石学特点，但长2成分成熟度稍优于长6，长2孔隙类型为碳酸盐溶孔-长石溶孔-原生粒间孔组合，物性表现为中孔、低渗型；而长6孔隙类型为长石溶孔-原生粒间孔-浊沸石溶孔组合。物性特点为中孔、特低渗型。沉积环境、岩石成分及粒径、填隙物成分及含量、成岩作用等是影响物性的主要因素。 |
| 关 键 词： | 岩石学特征 物性特征 成岩作用 延长组 安塞油田 鄂尔多斯盆地 |
| 文章编号： | 1672-6561（2005）04-0045-04 |
| 收稿时间： | 2004-11-11 |
| 修稿时间： | 2004年11月11 |
Characteristics of Yanchang Formation Reservoirs and Its Influence Factors in Ansai Oilfield |
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| ZHAO Hong,DANG Ben,DANG Yong-chao,YAO Wei-ping.Characteristics of Yanchang Formation Reservoirs and Its Influence Factors in Ansai Oilfield[J].Journal of Earth Sciences and Environment,2005,27(4):45-48. | |
| Authors: | ZHAO Hong DANG Ben DANG Yong-chao YAO Wei-ping |
| Abstract: | By analyzing the data of drilling cores, costing thin sections as well as physical property, the petrology characteristics, characteristics of pore and permeability and the porosity types are studied and the influences factors are also analyzed about Chang 2 and Chang 6 oil-bearing beds in the Ansai Oilfield. The result indicates that they both have the characteristics of petrology of lower mineral maturity and high stuctrue maturity, but Chang 2 is better than Chang 6 in mineral maturity. The former has the porosity types of carbonate dissolution porosity-feldspar dissolution porosity-primal grain porosity while the later has the porosity types of feldspar dissolution porosity-primal grain porosity-laumontite dissolution porosity. The physical property represent that Chang 2 is middle pore and low permeability, Chang 6 is middle pore and very low permeability. Sedimentry environment, petrology composition and radius, composition and amount, and the diagenesis are all the factors that influence the reservoirs. |
| Keywords: | petrology characteristics physical property diagenesis Yanchang Formation Ansai Oilfield Ordos Basin |
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