定井底流压下有限导流垂直裂缝井的理论模型  

THEORETICAL MODEL FOR A WELL WITH A FINITE-CONDUCTIVITY VERTICAL FRACTURE AT CONSTANT BOTTOM-HOLE PRESSURE

作　　者：刘常红[1] 程博[2] 翟云芳[3] 

机构地区：[1]中石化勘探开发研究院 [2]中国地质大学(北京)地球科学与资源学院 [3]大庆石油学院石油工程系

出　　处：《钻采工艺》2003年第6期56-58,共3页Drilling & Production Technology

摘　　要：人工压裂后在油气藏中产生了水力裂缝 ,油气井的生产动态已经成为具有水力裂缝的油藏工程问题 ,为了经济合理地开发 ,需要分析评价压裂效果 ,预测产量。分析、研究了具有垂直裂缝的无限大均质地层中 ,在定井底流压生产条件下压裂井的流量动态 ,建立其渗流模型 ,并利用牛曼积原理、格林函数等方法进行求解 ,最终绘制出产量预测曲线 ,通过曲线拟合 ,确定油藏参数 ,从理论上进行了有效分析。A hydraulic fracture is producted by man-made fracturing.Now production dynamic of oil-gas wells has become one question of reservoir engineering with fracturing.In order to develop economically and reasonably,we need to analyse and estimate postfracture response,to predict production.Then transient flow behavior of a vertical fractured well producing at constant bottom-hole pressure is analysed and studied in an infinite homogeneous reservoir.A mathematical model is established.And the solution is also presented by applying Newman method and Green′s function.When plotted in terms of dimensionless rate and time,a type curve matching procedure and be used to obtain the formation and fracture characteristics.

关 键 词：油藏工程 水力裂缝 人工压裂 油气藏 理论模型 数学模型 

分 类 号：TE319[石油与天然气工程—油气田开发工程]