石油学报 ›› 1995, Vol. 16 ›› Issue (2): 85-92.DOI: 10.7623/syxb199502013

• 油田开发 • 上一篇    下一篇

不稳定试井考虑相重新分布瞬态压力精确解

徐建平   

  1. 大港石油管理局勘探开发研究院
  • 收稿日期:1991-11-23 修回日期:1994-08-15 出版日期:1995-04-25 发布日期:2013-07-06
  • 作者简介:徐建平,1986年毕业于北京大学力学系.现为大港石油勘探开发研究院工程师.通讯处:天津大港油田.邮政编码:300280.

THE ACCURATE SOLUTION OF THE TRANSIENT PRESSURE IN THE UNSTEADY WELL TEST CONSIDERING PHASE REDISTRIBUTION

Xu Jiangping   

  1. Research Institute of Petrolum Exploxation and Developmenl, Dagang Petroleum Adminisration
  • Received:1991-11-23 Revised:1994-08-15 Online:1995-04-25 Published:2013-07-06

摘要: 采用Fair模型,对均质油藏中一口单井的瞬态压力恢复,考虑井筒储存和表皮效应以及“鸵峰效应”的影响,应用Laplace变换求解,最后采用残数理论进行积分反演变换,给出实空间上积分解的形式.本法-反过去的Laplace数字反演进行求解,特别对于时间很短的早期计算具有很高的求解精度.由于给出解的具体结构形式,进一步完善了均质油藏试井理论解的结构系统.对现场实例进行了参数拟合分析.

关键词: 不稳定试井, 典型曲线, 积分变换, 井筒储存, 均质油藏

Abstract: This paper utilizes Fair's model,taking both wellbore storage and skin effect and "humpeffect" to interprete the well testing records of a single well in a homogeneous reservoir.Laplace's transform is applied firsst, then residual theory is used,and finally integral inversetransform is performed to give a solution in the real space, This method differs from previousrnethod which gives a form of Laplace,s numerical inverse transform. Therefore, it has highaccuracy and requires a shorter time,because a concrete form of the solution are given.Thus,it improves the structural system of those solutions for well test of a single well in ahomogeneous reservoir,Finally,some actual field examples are given to illustrate the methodpresented.

Key words: instability well testing, type curve, integral transform, wellbore storage, homogeneous reservolr