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| 低渗透气藏压裂井产能分析 | |
| 引用本文： | 何应付,徐联玉,吕万一,杨正明,郝明强. 低渗透气藏压裂井产能分析[J]. 特种油气藏, 2006, 13(5): 59-61 |
| 作者姓名： | 何应付 徐联玉 吕万一 杨正明 郝明强 |
| 作者单位： | 1. 中科院渗流流体力学研究所,河北,廊坊,065007 2. 中油大庆油田有限责任公司,黑龙江,大庆,163712 3. 中油华北油田公司,河北,任丘,062552 |
| 基金项目： | 中国石油天然气股份有限公司资助项目 |
| 摘 要： | 基于低渗透气藏渗透率随拟压力呈指数函数规律的基础，考虑拟启动压力梯度存在的影响，根据扰动椭圆概念和等价发展矩形思想，研究了垂直裂缝井的产能计算方法，绘制并分析了产能理论曲线。研究结果表明，渗透率模数、拟启动压力梯度以及裂缝的长度均对压裂井产能产生影响。渗透率模数和拟启动压力梯度越大，裂缝越短，气井产能越小。 |
| 关 键 词： | 低渗透气藏 变形介质 拟启动压力梯度 垂直裂缝井 产能分析 |
| 文章编号： | 1006-6535（2006）05-0059-03 |
| 收稿时间： | 2006-06-27 |
| 修稿时间： | 2006-07-17 |
Productivity analysis of fractured well in low permeability gas reservoir |
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| HE Ying-fu,XU Lian-yu,LU Wan-yi,YANG Zheng-Ming,HAO Ming-qiang. Productivity analysis of fractured well in low permeability gas reservoir[J]. Special Oil & Gas Reservoirs, 2006, 13(5): 59-61 | |
| Authors: | HE Ying-fu XU Lian-yu LU Wan-yi YANG Zheng-Ming HAO Ming-qiang |
| Abstract: | On the basis that the permeability of low permeability gas reservoirs shows as an exponential function along with pseudopressure,the productivity calculation method for wells with vertical fractures has been studied according to the concept of disturbed ellipse and the thought of equivalent developing rectangle with consideration of threshold pressure gradient.Theoretical productivity curve is drawn and analyzed.The result shows that permeability modulus,threshold pressure and fracture length all have effect on the productivity of fractured gas well.The higher the permeability modulus,the threshold pressure and the shorter the fractures are,the lower the productivity of gas well is. |
| Keywords: | low permeability gas reservoir deformation medium threshold pressure vertical fracture well productivity analysis |
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