| 鄂尔多斯盆地安塞油田东部地区储层特征及影响因素分析 |
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| 引用本文： | 王安立,朱苗苗,胡桂林,冯张斌.鄂尔多斯盆地安塞油田东部地区储层特征及影响因素分析[J].辽宁化工,2012,41(3):299-301. |
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| 作者姓名： | 王安立 朱苗苗 胡桂林 冯张斌 |
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| 作者单位： | 1. 西安石油大学油气资源学院,陕西西安,710065
2. 中国石油长庆油田分公司第一采油厂,陕西延安,716500 |
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| 摘 要： | 根据铸体薄片及物性资料分析,对安塞油田东部地区延长组长2-长6油层储层的岩石学特征、物性特征等进行深入研究,分析影响储层储集性能的主要因素。结果表明,研究区的长2-长6储层岩石类型以细粒长石砂岩为主,具成分成熟度低而结构成熟度高的岩石学特点,储层以粒间孔和溶蚀孔最为发育,溶解作用是形成次生孔隙,改善本区储层储渗条件的主要成岩方式之一。储层的储集性受沉积相和成岩作用综合控制,为典型中低孔、特低渗储集层。
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| 关 键 词： | 鄂尔多斯盆地 安塞油田 储层特征 影响因素 |
Reservoir Characteristics and Influencing Factors in Eastern Region of Ansai Oilfield ,Ordos Basin |
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| WANG An-li
,
ZHU Miao-miao
,
HU Gui-lin
,
FENG Zhangi-bin.Reservoir Characteristics and Influencing Factors in Eastern Region of Ansai Oilfield ,Ordos Basin[J].Liaoning Chemical Industry,2012,41(3):299-301. |
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| Authors: | WANG An-li ZHU Miao-miao HU Gui-lin FENG Zhangi-bin |
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| Affiliation: | WANG An-li1,ZHU Miao-miao1,HU Gui-lin2,FENG Zhangi-bin2(1.Xi’an Shiyou University,Shaanxi Xi’an 710065,China; 2.Changqing Oilfield Company No.1 Oil Production Plant,Shaanxi Yan’an 716500,China) |
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| Abstract: | Based on the analysis of casting thin sections and geophysical data,petrologic characteristics and physical properties of Chang2-Chang6 reservoirs in eastern region of Ansai oil field were studied,and its influencing factors were analyzed.The results show that Chang2-Chang6 reservoirs in this area are characterized by fine-grained feldspar sandstone,low mineral maturity and high structure maturity;intergranular pore and solution pore developed well.Dissolution is one of main diagenetic ways to form the secondary porosity and improve accumulation and penetration conditions of reservoirs in this area.The reservoir property is synthetically controlled by sedimentary facies and diagenesis,and it is a typical low porosity,ultra-low permeability reservoir. |
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| Keywords: | Ordos basin Ansai oil field Reservoir characteristics Influencing factors |
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