文章基本信息

标题：Nonlinear Least Squares (NLS) Tracer Model
本地全文：下载
作者：Siti Rahmawati ; Sutawanir Darwis
期刊名称：Statistika
印刷版ISSN：1411-5891
出版年度：2009
卷号：9
期号：1
页码：49-54
DOI：10.29313/jstat.v9i1.992
出版社：Universitas Islam Bandung
摘要：Tracer test is used to study possible temperature decline and cooling of production well during longterm re-injection through studying connection between injection and production well. Tracer test involve injecting a chemical tracer into a hydrological system and monitoring it’s recovery through time. Concentration tracer in production well is nonlinear model. Nonlinear Least Squares Method is proposed to estimate the tracer parameter, i.e. average fluid velocity in the channel and dispersion coefficient, by using simulation data tracer concentration from production wells AH-4bis, AH-19, and AH-22 in Ahuacapan, Elsavador. The results of estimation are used for predicting thermal breakthrough and cooling production well during long term re-injection.
关键词：tracer test;tracer velocity;dispersion coefficient;NLS.