Akademik Veri Yönetim Sistemi
49th Workshop on Geothermal Reservoir Engineering, California, Amerika Birleşik Devletleri, 12 - 14 Şubat 2024, ss.1-10
Pressure Transient Analysis (PTA) is a sophisticated method used to determine crucial reservoir parameters such as permeability, porosity,
permeability-thickness, the radius of investigation, boundaries, and hydraulic connectivity between wells. The most widely applied
pressure transient tests in geothermal wells are the pressure buildup, drawdown, fall off, and interference tests. This study characterizes
Alaşehir geothermal reservoir using sp ecial interp retation techniques such as Bourdet p ressure derivative analy sis on a log-log scale and
straight-line analysis (semi-log analysis and special lines). An academic version of the Kappa-Saphir module was used for the analyses.
The p ressure transient analy ses suggested that geothermal wells p roduce from intersected fractures in the Alaşehir field. Double porosity
behavior was found in most of the wells. High permeability -thickness products are in good agreement with the high production
performance of the wells. A high skin factor was calculated in some wells, which might be related to the high content of solid particles
used in the drilling fluid. No-flow boundary detected in the wells might suggest sealing faults, while constant pressure boundary might be
due to injection supports in the nearby injection wells. Once the reservoir properties are obtained, the spatial distribution of the parameters
is constructed for the reservoir characterization, giving good insight into the field development.