USING THERMAL DRAWDOWN AND RECOVERY SIGNATURES TO IDENTIFY INJECTION INTERVALS
- Location
- Fenton Hill, New Mexico; Valles Caldera, New Mexico
- Conference
- Stanford Geothermal Workshop
- Year
- 1997
- Language
- English
Full text
261KB, opens in a new tab
Abstract
Geothermal reservoir engineering is an inexact science. The engineer is forced to design and operate the reservoir based on a conceptual model
gained mainly by inference, not direct observation. One type of data available to the engineer is temperature logs of the injection and production
wells before, during, and after operation.
In this paper, we present analyses of thermal drawdown and recovery at an injection borehole with different fracture spacings. The goal is to identify patterns in the resulting thermal signatures. We discuss data obtained from testing at the Fenton Hill reservoir and compare our calculations to data. We conclude that thermal signatures, especially thermal recovery, can help the engineer identify flow patterns within the reservoir.
Copyright 1997, Stanford Geothermal Program. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.