| 井底产量受压缩系数影响的弹性不稳定渗流特征 |
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| 引用本文： | 郭小哲,王福升,胡广文.井底产量受压缩系数影响的弹性不稳定渗流特征[J].石油钻采工艺,2011,33(4):59-61. |
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| 作者姓名： | 郭小哲 王福升 胡广文 |
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| 作者单位： | 1.中国石油大学石油天然气工程学院，北京 102249 |
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| 基金项目： | 国家自然科学基金“低渗透油藏非达西渗流机理与应用研究”(编号:40974055)部分内容 |
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| 摘 要： | 弹性不稳定渗流的动力来源主要是岩石及液体的弹性能量，当井底定产量生产时，往往忽略井底产量由于液体压缩系数而产生的弹性变化，致使动态预测时井底压力计算偏小。考虑井底产量受压缩系数影响，对弹性不稳定渗流时的井底定产量进行“变产量”处理，再结合压降叠加原理，得到了井底压力不同的预测结果。从原始地层压力、渗透率、原油黏度、储层厚度、产量、生产时间6个方面分析了井底产量受压缩系数影响对井底压力预测结果的敏感程度，经验证，考虑压缩系数与不考虑压缩系数的井底压力偏差最高可达10%，对实际生产动态分析会产生一定程度的影响
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| 关 键 词： | 渗流 压缩系数 定产量 变产量 井底流量 |
| 收稿时间： | 2019-05-17 |
Unsteady porous flow mechanism affected by productivity compressibility of the bottom of well |
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| GUO Xiaozhe,WANG Fusheng,HU Guangwen.Unsteady porous flow mechanism affected by productivity compressibility of the bottom of well[J].Oil Drilling & Production Technology,2011,33(4):59-61. |
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| Authors: | GUO Xiaozhe WANG Fusheng HU Guangwen |
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| Affiliation: | 1.College of Petroleum Engineering in China University of Petroleum, Beijing 102249, China2.Test Oil Company of XinJiang Oil Field, Karamay 834000, China |
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| Abstract: | The main power driving the oil flowing to the bottom of well are the rock and liquid elastic energy. Generally, invariable productivity of well is defined in elastic reservoir, but the productivity actually is variable because of the liquid compressibility. Therefore, the pressure of the bottom of well forecasted is lower in the production. Considering the effecting of the liquid compressibility for the invariable productivity, the invariable productivity is altered based on the instantaneous well pressure.... |
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| Keywords: | porous flow compressibility invariable productivity variable productivity bottom-hole inflow rate |
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