Globally scalable geothermal energy production through managed pressure operation control of deep closed-loop well systems

A Systematic Review of the Design and Heat Transfer Performance of Enhanced Closed-Loop Geothermal Systems

“…This methodology identified 2412 publications on Scopus, 33 publications from Web of Science, and 60 publications from Science Direct, for a total of 2505 articles. After screening for relevance (1975), irrelevant records (400), duplicated reports (40), and non-compliance with the defined criteria (61), the remaining 29 studies were combined with the 9 records acquired from previous studies, resulting in the 38 publications included in this review.…”

“…These were followed by finite volume methods (FVM) with 18.4%, while the remaining 21.1% of the studies did not report the methods used. CCLGS --Bu et al [30] CCLGS FVM -Focaccia and Tinti [31] CCLGS --Yekoladio et al [32] CCLGS --Templeton et al [33] CCLGS FEM FlexPDE Wight and Bennett [34] CCLGS --Le Lous et al [35] CCLGS FEM FFEFLOW Noorollahi et al [36] CCLGS FVM Ansys Alimonti and Soldo [37] CCLGS --Mokhtari et al [38] CCLGS --Caulk and Tomak [39] CCLGS FEM Comsol Sun et al [40] CCLGS-H FDM -Song et al [25] CCLGS FDM -Shi et al [41] CCLGS FEM Comsol Renaud et al [42] CCLGS FVM Ansys Ghoreishi-Madiseh et al [43] CCLGS FVM Ansys Zhang et al [44] CCLGS FEM Comsol Sun et al [45] CCLGS-H FDM -Wang et al [46] CCLGS-H FDM -Yu et al [47] CCLGS FDM -Yildirim et al [48] CCLGS FEM Comsol Dai et al [49] CCLGS FVM -Hu et al [50] CCLGS FEM Comsol Wang et al [51] CCLGS-H FEM Comsol Hu et al [52] CCLGS FVM T2Well Kalmár et al [53] CCLGS FDM -He et al [54] CCLGS _ -Wang et al [26] CCLGS-H FEM Comsol Wang et al [55] CCLGS-H FEM Comsol Pokhrel et al [56] CCLGS FVM Ansys Sun et al [57] UCLGS FDM -Sun et al [58] UCLGS FDM -Yuan et al [59] UCLGS FDM -Ghavidel et al [60] UCLGS FEM Comsol Fallah et al [61] UCLGS FDM -Zhang et al [62] UCLGS FDM -Note: CCLGS-H-Horizontal CCLGS.…”

Designing Smart drilling fluids using modified nano silica to improve drilling operations in Geothermal wells

“…As a result, there has been an increase in the number of geothermal exploration and drilling operations to reach geothermal reserves. Geothermal energy is produced by drilling geothermal wells and transferring natural heat from the earth using a circulation fluid injected from the surface or produced from geothermal reservoirs (Finger and Blankenship 2010;Paulillo et al, 2020;Fallah et al, 2021). Geothermal wells are drilled in the similar way as oil wells (Capuano Jr 2016;Bavadiya et al, 2019).…”

Research on economic length of the horizontal section of downhole coaxial heat exchanger geothermal system based on net present value

“…Liao et al 15 proposed a new method of using multibranch U‐shaped wells for geothermal power generation and presented a transient heat transfer model coupled with the wellbore and the formation to describe the dynamic changes of fluid and formation temperature. Fallah et al 16 developed a coupled thermal and hydraulic model to prove the novel concept of the integration of a controlled pressure operating system with deep UCLGS. However, at high temperatures, because of the precise docking technology limitation of the two wells, the application of the system in the exploration and development of high temperature HDR is considerably hindered.…”