| 一种新的预测底水突破前水锥参数的方法 |
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| 引用本文： | 蒋平,张贵才,葛际江,刘朝霞,孙铭勤.一种新的预测底水突破前水锥参数的方法[J].中国海上油气,2006,18(5):325-329. |
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| 作者姓名： | 蒋平 张贵才 葛际江 刘朝霞 孙铭勤 |
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| 作者单位： | 1. 中国石油大学(华东)石油工程学院
2. 中国石油勘探开发研究院采收率所 |
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| 摘 要： | 借鉴前人研究思路,分别假设原始油水界面处的压力为原始地层压力和供给边界压力,采用径向流和半球面流相结合的模型预测底水锥进。通过计算水锥高度随产量的变化规律得到油井临界产量的表达式;根据临界产量对射孔段长度进行优化设计;通过研究近井的压力分布描述油井附近的水锥形态。所提出的方法具有较好的计算精度和较快的计算速度,可用于不同类型底水油藏水锥参数的计算。
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| 关 键 词： | 底水锥进 预测方法 径向流 球面流 恒压边界 变压力边界 |
| 修稿时间： | 2006年2月17日 |
An new method to predict water coning before bottom-water breakthrough |
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| Jiang Ping,Zhang Guicai,Ge Jijiang,Liu Zhaoxia,Sun Mingqin.An new method to predict water coning before bottom-water breakthrough[J].China Offshore Oil and Gas,2006,18(5):325-329. |
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| Authors: | Jiang Ping Zhang Guicai Ge Jijiang Liu Zhaoxia Sun Mingqin |
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| Abstract: | According to a research thought of other authors,it is assumed that the pressures at an original oil-water contact are equal to original formation pressure and drainage boundary pressure respectively,and a model that incorporate radial flow and spherical flow is used to predict bottom-water coning.The expression formula of critical production rate in an oil well can be derived by calculating changes of water-cone height with production.Based on the critical production rates,it is possible to optimize the length design of perforated interval.The cone shape can be described by analyzing pressure distribution around a well.This method is quite exact and fast in calculation,and can be applied to different types of water-coning reservoir. |
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| Keywords: | water coning prediction method radial flow spherical flow constant pressure boundary varying pressure boundary |
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