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Table 1 Pressure and temperature survey and well investigation data (Marbun 2013; PT Geo Dipa Energi 2019)

From: Casing failure identification of long-abandoned geothermal wells in Field Dieng, Indonesia

Data category Well HCE9B Well HCE28B
Pressure and temperature survey
 Initial static survey
 Updated static survey
Well investigation
 Sinker bar
 Sample catcher Yes, found metal debris Yes, found silica debris
 Impression block Not performed Yes, found casing collapse marking