Editorial office of ACTA PETROLEI SINICA ›› 1995, Vol. 16 ›› Issue (2): 85-92.DOI: 10.7623/syxb199502013

• Oil Field Development • Previous Articles     Next Articles

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

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
  • 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.

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

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