Application of Kalman filter to pressure interference test analysis

Ryuichi Itoi, Hiroshi Arakawa, Michihiro Fukuda, Kenji Jinno

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We present a method to analyze multiwell variable flow rate interference tests by the Kalman filter. A line source solution using the principle of superposition is employed to express the pressure change at a observation well. This solution is utilized as a measurement equation in the Kalman filtering. Since the measurement equation is nonlinear with respect to the parameters of transmissivity and storativity which are to be identified, the extended Kalman filter is adopted. The results of an interference test with four production wells has been analyzed for transmissivity and storativity. In this analysis, these parameters are updated at every moment when the pressure data at the observation well is obtained. The results of analysis indicate that the most likely values of parameters can be estimated as early as at the middle of the test duration.

Original languageEnglish
Title of host publicationTransactions - Geothermal Resources Council
PublisherPubl by Geothermal Resources Council
Number of pages4
Editionpt 2
ISBN (Print)0934412685
Publication statusPublished - 1990
Event1990 International Symposium on Geothermal Energy - Kailua-Kona, HI, USA
Duration: Aug 20 1990Aug 24 1990

Publication series

NameTransactions - Geothermal Resources Council
Numberpt 2
ISSN (Print)0193-5933


Other1990 International Symposium on Geothermal Energy
CityKailua-Kona, HI, USA

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics


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