Well testing of radial jet drilling wells in geothermal reservoirs

Abstract Radial Jet Drilling (RJD) is a stimulation technique to increase well’s performance through creation of multiple laterals up 100 m long. The has been used in the petroleum industry for several years and recently also geothermal reservoirs. Interpretation well tests with may become problematic if effect not correctly modelled. In this work it investigated what impact RJD on pressure transients both single dual porosity A semi-analytic model calculation transient that accounts explicitly geometry developed validated detailed numerical simulation. results show changes lateral configuration affect significantly. particular media, ways cannot be captured by representing skin factor. Since process unsteered exact uncertain, potentially assist estimating effectiveness such as achieved reach laterals. Although was carried out context application reservoirs, presented approach can extended multi-lateral wells oil or gas