Title: |
Interpretation of Pre- and Post-Fracturing Well Tests in a Geothermal Reservoir |
Authors: |
N. Arihara, H. Fukagawa, M. Hyodo, M. Abbaszadeh |
Geo Location: |
Matsukawa, Japan |
Conference: |
Stanford Geothermal Workshop |
Year: |
1995 |
Session: |
Well Test/Well Bore |
Language: |
English |
File Size: |
572KB |
View File: |
|
Pre- and post-fracturing well tests in TG-2 well drilled next to the Matsukawa field are interpreted for evaluating effects of a massive hydraulic fracturing treatment. The interpreted data include multiple-step rate tests, a two-step rate test, and falloff tests. Pressure behaviors of massive hydraulic fracturing are matched by a simulator of dynamic fracture option. Fracture parting pressures can be evaluated from the multiple-step rate test data. The multiple-step rates during the massive hydraulic fracturing treatment show that multiple fractures have been induced in sequence. Although the pre-fracturing falloff tests are too short, fracture propagation can be evaluated qualitatively from the falloff data. Interpretation of the falloff test immediately after the MHF suggests that extensive fractures have benn created by the MHF, which is verified by simulation. The postfracturing falloff tests show that the fractures created by the MHF have closed to a great degree.
Press the Back button in your browser, or search again.
Copyright 1995, 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.