Hydrodynamic relations of the Zagreb geothermal field : master’s thesis

Nakon podrobnijeg opisa fizikalnih, geoloških i tehničkih karakteristika ležišta i bušotina na lokalitetima SRC Mladost i SRC Blato, u radu su prikazani i analizirani testovi porasta tlaka provedeni na proizvodno-utisnom paru bušotina na području nedovršene Kliničke bolnice Novi Zagreb. Testovi su obrađeni u softveru Saphir programskog paketa Ecrin (licenca #9643), a izračunate vrijednosti parametara uspoređene su s vrijednostima dobivenim u program Interpret/2 sredinom 80-ih godina, s naglaskom na propusnost, tj. propusnu moć ležišta, te skin faktor. Propusnost i radijus crpljenja također su dobiveni grafoanalitičkim putem pri čemu se koristio kalkulator Excel. Na temelju takve usporedbe, u posljednjem poglavlju rezerviranom za zaključnu riječ, potvrdit će se ili opovrgnuti vjerodostojnost rezultata unutar stručne dokumentacije Službe za razradu INA-Naftaplin kompanije, što ujedno i definira cilj samog Diplomskog rada.After a detailed description of the physical, geological and technical characteristics of the reservoirs and wells at SRC Mladost and SRC Blato locality, pressure build-up tests performed at a production-injection pair of the wells in the field of the unfinished Clinical hospital Novi Zagreb are presented and elaborated in this thesis. The tests are analyzed using the Ecrin (Saphir) software suite(licence #9643), and calculated values of the parameters are compared to the values obtained by Interpret/2 software in the middle of the 1980s, with an emphasis on permeability, i.e. the capacity of the reservoirs, and the skin factor. Permeability and the radius of investigation are also calculated by grapho-analytical method using the Excel calculator. Based on this comparison, in the last chapter that is reserved for conclusion, credibility of the results within the professional documentation of the INA-Naftaplin reservoir engineering service will be confirmed or disproven, which also defines the goal of the Master’s Thesis