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使用PetraSim自带的TOUGH2 v2可执行文件,包括了只有PetraSim才能修改的源代码。包括CSV文件的输出(用于界面中的结果可
视化)和一些旨在改进地热模型的更改。包括(但不限于)以下内容
确定油井启动时间。这就避免了在现场规模的地热生产预测中对大量的油井进行建模时需要多次重启。
生产力指数(PI)和油井每一层的流动压力。
IAPWS-IF97相关纯净水添加到标准TOUGH2 EOSs中。这些方法将“TOUGH2”的使用范围扩大到接近临界条件(T>350°C)和地热地质条件(P>1000 bara)。
IAPWS 2008纯净水和蒸汽的粘度配方添加到标准TOUGH2 EOSs中。
使用源/汇名称对源/汇单元进行分组。这使得当多个井相交于同一单元时可以正确分配生产。
在的时间步长写入SAVE文件。
在GOFT文件中为EOS2和EWASG提供额外的输出结果。
EOS2和EWASG中新毛细管压力和焓值选择。
EOS2相变过程中提高收敛。
Integrated Results Visualization
The user can immediately view results. PetraSim includes time history and 3D iso-surface, vector, and contour plots. Data can be exported to spreadsheets or in a simple format appropriate for graphic software such as TECPLOT.
PetraSim, a TOUGH2 Interface
Helpful Input Visualization
All input is organized in such a way that the user understands what the input value is and where it will be used. For example, when relative permeability input is specified, the equations are given and a dynamic preview of the permeability curves is displayed.
PetraSim includes TOUGH2 (version 2), T2VOC, TMVOC, and TOUGHREACT (version 1.2) executables. TOUGH version 2.1 and TOUGHREACT v2.0 are supported and can be purchased for an additional fee. HydrateResSim is also supported and must be acquired from NETL for use with PetraSim. PetraSim also includes limited support for TOUGHREACT v3.3 and TOUGHREACT-Pitzer.
Specify the start-up time for a well on deliverability. This avoids the need for multiple restarts when modeling a number of make-up wells in field-scale geothermal production forecast.
Specify the productivity index (PI) and flowing pressures for each layer of a well on deliverability.
IAPWS-IF97 correlations for pure water added to the standard TOUGH2 EOSs. These extend the use of TOUGH2 to near-critical conditions (T>350°C) and to geothermal geopressured conditions (P>1000 bara).
IAPWS 2008 viscosity formulation for pure water and steam added to the standard TOUGH2 EOSs.
The TOUGH2 codes have been applied to problems ranging from Yucca mountain groundwater flow to multi-component environmental remediation. PetraSim makes the power of TOUGH2 accessible to modelers through an interactive 3D environment that includes mesh generation, parameter definition, and display of results.
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