| 砂岩储层重复压裂前井眼围岩地应力模型研究 |
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| 引用本文： | 金英兰.砂岩储层重复压裂前井眼围岩地应力模型研究[J].佳木斯工学院学报,2009(2):269-271. |
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| 作者姓名： | 金英兰 |
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| 作者单位： | [1]南京大学地球科学系,江苏南京210093; [2]大庆油田有限责任公司第一采油厂,黑龙江大庆163100 |
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| 摘 要： | 根据势的叠加原则，确定了重复压裂井周围注，采孔隙压力模型；考虑注／采生产初次人工裂缝内充满弱可压缩流体，引入流体弹性系数，建立含弱可压缩流体的初次裂缝诱导应力场模型；根据线性叠加原理，建立重复压裂前井眼围岩的总应力计算模型，并计算实际1口生产井的应力分布．
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| 关 键 词： | 地应力 诱导应力 复压 势能 |
Study on the Model of Stress under Refracture Around the Well of Sandstone Reservoir |
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| Affiliation: | JIN Ying- lan ( 1. The Geoscience Department of Nanjing University, Nanjing 210093, China; 2. The First Factory of Daqing Oilfield Ltd., Daqing 163000, China) |
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| Abstract: | The model of stress induced by pore pressure was obtained based on potential superimpose. The affecting factor on fluid in the maiden artificial fracture was introduced as the compressibility of fluid in fracture during injecting and producing was considered. And the stress model of the maiden artificial fracture was built based on the thoory of the linear potential superimpose. The model of total stress before refracturing was established, and the stress of a well was calculated. |
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| Keywords: | crustal stress induce stress refracture potential |
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