基于续流量校正的早期试井分析方法  

A Early-Time Well Test Analysis Technique Based on Afterflow Calibration

作　　者：孙景丽[1] 苏标瑾[2] 林加恩[3] 田华丰[1] 齐红玉[1] 

机构地区：[1]中原油田分公司油藏监测研究中心 [2]中原油田分公司信息中心 [3]西安石油大学

出　　处：《断块油气田》2005年第4期86-88,共3页Fault-Block Oil & Gas Field

摘　　要：目前,国内外已有很多有关早期试井资料的分析方法,文中从中优选出了一种能够更简单地解决基于常井筒存储条件下短期资料的分析技术,根据其基本公式,推导其压差、压力形式的直线方程,并求得各种地层参数。利用该校正方法,可以得到直线段出现早的分析图,揭示被井储掩盖的早期油藏动态,从而提高早期数据的利用率,测试时可以较大地缩短关井时间,使试井与生产的矛盾在一定程度上得以缓解。A number of early-time well test analysis techniques have been presented up to now in the world.This paper investigates one of them and uses it to analyze the short-term data of well test with constant wellbore storage.Based on the mathematical model,we derive the straight-line equation of the pressure and pressure change,and obtain the formation parameters.The straight line will appear more early on a semilog plot by using the afterflow calibration method.Further,the early behavior sheltered by the wellbore storage will be discovered so that the test time could be shortened much more by utilizing the early time data,and contradications between the well test and production will be alleviated.

关 键 词：续流分析 试井解释 短期资料 试井分析 早期 流量校正 试井资料 井筒存储 基本公式 直线方程 

分 类 号：TE353[石油与天然气工程—油气田开发工程] TQ028.31[化学工程]