Title:

Cross-Hole Periodic Hydraulic Testing of Inter-Well Connectivity

Authors:

Matthew Becker, Eric Guiltinan

Key Words:

injectivity, tracer, EGS, hydraulic tests

Geo Location:

New York

Conference:

Stanford Geothermal Workshop

Year:

2010

Session:

HDR/EGS

Language:

English

File Size:

238KB

View File:

Abstract:

Harmonic (periodic) hydraulic tests can establish formation hydraulic properties during active production of geothermal wells. Field experiments were conducted in a fractured sandstone to establish the value of these tests for establishing inter-well connectivity. Sinusoidal head oscillation was induced in well and the propagation of the pressure pulse through a single fracture was measured in four observation wells. Pressure response was interpreted by non-linear regression fitting of the hydraulic diffusion equation to drawdown. Hydraulic diffusivity (transmissivity / storativity) inverted from these tests were found to be much more sensitive to local heterogeneity than traditional constant rate (Theis) tests. The method may be particularly useful for anticipating hydraulic short circuiting in fractured geothermal reservoirs.


ec2-18-204-56-97.compute-1.amazonaws.com, you have accessed 0 records today.

Press the Back button in your browser, or search again.

Copyright 2010, Stanford Geothermal Program: Readers who download papers from this site should honor the copyright of the original authors and may not copy or distribute the work further without the permission of the original publisher.


Attend the nwxt Stanford Geothermal Workshop, click here for details.

Accessed by: ec2-18-204-56-97.compute-1.amazonaws.com (18.204.56.97)
Accessed: Thursday 29th of September 2022 05:18:26 AM