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| 长期冲刷条件下的渗透率变化和微观模型研究 | |
| 引用本文： | 陈小凡,刘峰,王博,李春磊,林德纯.长期冲刷条件下的渗透率变化和微观模型研究[J].特种油气藏,2012,19(1):66-69,138. |
| 作者姓名： | 陈小凡 刘峰 王博 李春磊 林德纯 |
| 作者单位： | 1. 油气藏地质及开发工程国家重点实验室西南石油大学,四川成都,610500 2. 中油冀东油田分公司,河北唐山,063004 3. 中石化西北油田分公司,新疆乌鲁木齐,830011 |
| 摘 要： | 长期的注水开发,使储层的物性参数发生了较大变化,其非均质性较开发初期更加严重,开采难度增加。为了研究长期注水冲刷条件下储层物性参数的变化规律,利用室内岩心驱替实验,分析了在长期冲刷条件下岩心渗透率的变化。实验表明,在长期的注水、注白油驱替下,岩心渗透率降低。根据实验数据,建立了渗透率降低的微观动态模型,并对渗透率降低的原因进行了分析。 |
| 关 键 词： | 注水 注白油 岩心驱替 渗透率 微观模型 |
Permeability changes under long-term water flooding and microscopic model study |
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| CHEN Xiao-fan,LIU Feng,WANG Bo,LI Chun-lei,LIN De-chun.Permeability changes under long-term water flooding and microscopic model study[J].Special Oil & Gas Reservoirs,2012,19(1):66-69,138. | |
| Authors: | CHEN Xiao-fan LIU Feng WANG Bo LI Chun-lei LIN De-chun |
| Affiliation: | 1(1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China;2.Jidong Oilfield Company,PetroChina,Tangshan,Hebei 063004,China;3.Northwest Oilfield Company,SINOPEC,Urumqi,Xinjiang 830011,China) |
| Abstract: | Reservoir petrophysical properties would change under long term water flooding,and reservoir heterogeneity would become even worse than the early stage of oilfield development,bringing more difficulties to oil recovery.This paper studies the change of reservoir petrophysical properties under long term water flooding through laboratory core displacement experiments.The results indicate that core permeability decreases after long term water injection or white oil injection.A microscopic dynamic model has been established based on experiment data to analyze the reasons for permeability decrease. |
| Keywords: | water flooding white oil injection core displacement permeability microscopic model |
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