低渗透油藏注水井压力降落试井早期资料解释新方法  

A New Method of Pressure Descent Test Curve Analysis of Low Permeability Oil Reservoir Injection Well

作　　者：张英魁[1] 

机构地区：[1]吉林油田分公司勘探开发研究院,吉林松原138000

出　　处：《油气井测试》2017年第6期22-25,共4页Well Testing

基　　金：国家级项目"松辽盆地南部深层致密气有效开发技术"(2016ZX05047005-006)内容

摘　　要：吉林油田压力降落试井出现径向流的注水井只占统计井次的10%~20%。为了使大部分未出现径向流的注水井压力降落试井资料得到很好应用,提出了"PanSystem试井解释软件+注水井压力降落试井曲线斜率回归公式法+图解法"三位一体的联合技术,把相关数据录入PanSystem试井解释软件,删去井的径向流部分,引入续流段伪斜率概念,利用注水井压力降落试井曲线斜率回归公式,最终进行曲线拟合求取相关参数。该方法解决了吉林油田注水井压力降落试井在低渗透储层的试井解释难题,解释地层压力相对误差1.26%。The injection well of the radial flow in the pressure descent test wells of Jilin oilfield is only 10%to 20% of the statistical well.In order to obtain the very good application of pressure descent well testing data of the most no radial flow injection wells,trinity united technology of the "PanSystem well test interpretation software + injection Wells slope land pressure well testing curve regression formula method+ graphical method" is put forward,and the relevant data entry PanSystem well test interpretation software,radial flow part of wells is deleted,a concept of continued flow pseudo slope is introduced,and eventually curve is fit to calculate the relevant parameters by using injection pressure well test curve regression formula.This method solves the difficult problem of the pressure landing test of the injection well in Jilin oilfield and explains the relative error of the formation pressure of 1.26%.

关 键 词：图解法 直线斜率 低渗油田 注水井 试井解释 

分 类 号：TE353[石油与天然气工程—油气田开发工程]