02515nmc a2200205 4500 20260520154251.0 260224s xxu 068.82 553.28 C62 15730 Fasola, Martín E. 61113 Villar, Héctor J. 4764 Congreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza) 61064 Simposio de Desarrollo de Vaca Muerta ESTIMACIÓN DE INTERFERENCIAS Y ALTURA DE DRENAJE EN POZOS HORIZONTALES DE LA FORMACIÓN VACA MUERTA MEDIANTE EL ESTUDIO DE CORONAS Y PETRÓLEOS EMPLEANDO LA METODOLOGÍA DE ALOCACIÓN GEOQUÍMICA 23/08/2024 ; 20/08/2024 20 p. ; 115-134 Production allocation by geochemistry is a non-disruptive and low-cost method to assess the mobility of fluids in a reservoir using natural tracers present in oils. The first step of the methodology is identification of representative fluids of geochemical flow units. Those samples, called "end members", are then analyzed by high-resolution gas chromatography (HRGC) to create chromatographic fingerprints diagnostic of those flow units. The fingerprints of the end members are used to calculate the proportion of fluid coming from each end member ("allocation") in the commingled samples. In this study, several production time-series oil samples from three producing horizontal wells in intervals C, Oi and Os from the Vaca Muerta Formation were allocated by using a set of oil end members extracted from cores from the section of interest (155 m) spanning the zones called Upper Organic (Os), Middle Organic (Om), Lower Organic (Oi), Regressive (Rg) and Cocina (C). From this study, we concluded that no interference (frac-induced lateral or vertical connectivity) exists among the target zones produced by these wells. Wells targeting the Os and C zones produce predominantly from the landing zone targeted by the well and the well landed in the Oi produced initially from three intervals (Oi, Om and Rg), with variable contributions from each zone. Then over the following a year, the drained rock volume shrank, such that production fluids were derived only from the Oi landing zone. Additionally, an effective drainage height was estimated for each well based on the geochemical production allocation. https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Simp.VacaMuerta/vacamuerta08.pdf CONGTP ddc 196641 196641 0 0 0 0 264360 BVIAPG BVIAPG 068.82 553.28 C62 15730 2026-03-06 200069071 0 068.82 553.28 C62 15730 200069071 2026-03-06 00:42:04 2026-03-06 ARCHIVO