Chemical Stimulation of Engineered Geothermal Systems

Rose, Peter, E.

关键词: CALCITE;    CHEMICAL COMPOSITION;    DECAY;    DESIGN;    GEOTHERMAL SYSTEMS;    KINETICS;    REACTION KINETICS;    SCREENS;    STABILITY;    STIMULATION;   

DOI  :  10.2172/935668
RP-ID  :  DOE/GO/14295-1
PID  :  OSTI ID: 935668
Others  :  TRN: US200818%%721

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 摘 要 】

The objective of this project is to design, develop and demonstrate methods for the chemical stimulation of candidate EGS reservoirs as well as the chemical treatment of mineral-scaled wellbores. First, a set of candidate chemical compounds capable of dissolving calcite was identified. A series of tests was then performed on each candidate in order to screen it for thermal stability and reactivity towards calcite. A detailed analysis was then performed on each compound that emerged from the screening tests in order to characterize its decay kinetics and reaction kinetics as functions of temperature and chemical composition. From among the compounds emerging from the laboratory studies, one compounds was chosen for a field experiment in order to verify the laboratory predictions.