A new liquid hold-up correlation for geothermal wells

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

“…The associated heat-transfer model ensures the energy balance in the entire wellbore by accounting for variable-pipe diameter, emphasizing convective-heat transport in the annulus. Interestingly, the high-quality Garg et al [22] dataset showed that all five models studied performed similarly. Nonetheless, the H-K model offers smooth transition boundaries between the flow regimes.…”

“…Some of the earlier studies of Chierici et al [19], Ambastha and Gudmundsson [20], and Chadha et al [21] used the hybrid-approach category. Later, Garg et al's [22] approach used Duns and Ros [23] flow pattern map and Hughmark's [24] correlation for pressure-drop calculations, with parameters optimized to represent the field data. However, this modeling approach used a constant overall-heat transfer coefficient (U t ), estimated with Ramey's [25] method.…”

“…To illustrate the difference in pressure profiles, Figure 11 presents the pressure profiles for four models for the KE1-22 well, taken from the Garg et al [22] dataset. In Figure 11(a), H-B represents the Hagedorn-Brown correlation [10], and H-K stands for the Hasan-Kabir model.…”

An Approach for Estimating Geothermal Reservoir Productivity under Access Limitations Associated with Snowy and Mountainous Prospects

“…Let us extend the reservoir model described in Section 3 by connecting it to a wellbore flow model. Using an appropriate wellbore flow simulation code (e.g., [9][10][11][12][13][14]), we assume that the production rate at a production well P1 with a constant wellhead pressure depends on the feed zone pressure and the specific enthalpy, as shown in Figure 6. Referring to the discretized tabular data, the code dynamically determines the production rate corresponding to arbitrary values of the pressure and the specific enthalpy via a bicubic interpolation.…”