| 马岭油田北三区延10_1~2储层特征及其控制因素 |
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| 引用本文： | 明红霞.马岭油田北三区延10_1~2储层特征及其控制因素[J].地质与勘探,2015,51(2):395-404. |
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| 作者姓名： | 明红霞 |
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| 作者单位： | 西北大学 大陆动力学国家重点实验室/地质学系，陕西西安；中石化胜利油田孤东采油厂地质所，山东东营 |
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| 基金项目： | 国家科技重大专项大型油气田及煤层气开发（2011ZX05044）资助 |
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| 摘 要： | 利用薄片鉴定、扫描电镜、压汞实验及物性分析等资料,系统研究了马岭油田北三区延1021储层特征及其控制因素。结果表明,研究区延1021储集层以成分成熟度、结构成熟度中等或偏低的岩屑长石砂岩及长石石英砂岩为主,为典型的低孔、低渗储层;储层内部构型以泥质夹层为主。储集空间以粒间孔为主,孔隙结构微观非均质性强,较大喉道控制储层渗流能力。沉积相带的差异导致储层物性的差异,并影响成岩作用的类型和强度。压实、胶结作用是储层致密的主导因素,溶蚀作用在改善储集空间的同时,还增强了孔喉连通性。微观孔隙结构可有效反映储层品质特征。
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| 关 键 词： | 马岭油田北三区 延1021储层特征 物性控制因素 成岩作用 孔隙结构 |
| 收稿时间： | 2014/7/19 0:00:00 |
| 修稿时间： | 2014/10/6 0:00:00 |
Characteristics and controlling factors on physical properties of Yan 1012 reservoirs in the northern Maling oilfield of Shanxi Province |
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| Ming Hong-xia.Characteristics and controlling factors on physical properties of Yan 1012 reservoirs in the northern Maling oilfield of Shanxi Province[J].Geology and Prospecting,2015,51(2):395-404. |
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| Authors: | Ming Hong-xia |
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| Institution: | MING Hong-xia;SUN Wei;ZHANG Long-long;Key Laboratory of Continental Dynamics of Ministry of Education/Department of Geology,Northwest University;The Gudong Oil Field Production of Michael Essien of Sinopec; |
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| Abstract: | Based on data from thin sections, scanning electron microscope and mercury injection tests and physical property analysis, this work made a systematic study on characteristics and controlling factors of Yan 1012 reservoirs in the northern Maling oilfield of Shanxi Province. The results demonstrate that the reservoir sandstone is mainly composed of lithic feldspathic sandstones and feldspathic lithic sandstones which have the characteristics of high compositional maturity and medium or low texture maturity, and belongs to a low-porosity and low-permeability type. The main internal architecture is muddy intercalation and the main reservoir space is dominated by intergranular holes with highly heterogeneous microscopic pore structure. Major throats are the crucial factor for reservoir infiltrating ability. Different sedimentary facies zones resulted in the differences of physical properties and determined types and intensity of the late diagenesis. The strong compaction and cementation played a key role in forming low-porosity and low-permeability reservoirs. As constructive diagenesis, dissolution of feldspar and cuttings caused by the acidic water not only improved the reservoir space greatly, but also enhanced the pore connectivity. Microscopic pore structure can effectively reflect reservoir quality. |
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