000 03446nmc a2200313 4500
005 20260520010356.0
008 260224s2018 xxu esp
041 _aEspañol
082 _a068.82 553.28 C62 2018 0015655
245 0 0 _aEstratigrafía de alta resolución y su implicancia para el modelado 3D de reservorios en la formación Lajas (Grupo Cuyo) -Anticlinal de Picún Leufú- Cuenca Neuquina
260 _a
_b
_c2018
270 _a01/07/2022 ; 06/03/2019
300 _a18 p. ; 295-313
520 _aIn the South part of the Neuquén basin (Picún Leufú anticline), the Jurassic deposits of the Lajas Formation have outcropping sections with very good state of preservation and high lateral continuities. These characteristics favor the use of these rocks as analogues for hydrocarbon reservoirs.Several previous researchers have studied this geological Formation. The section, constituted by fluvio-deltaic deposits, presents, according to others researchers, three sedimentary sequences of low frequency (3rd order). They also recognize a major regional unconformity (Intrabajocian) that is recognize over all the extensión of the Huincul&#x92;s Dorsal, between the first and second sequences, which divides the analyzed unit into two sections.The present work was carried out in the lower portion of the Lajas Formation below the mentioned regional unconformity. Two (predominantly progradational) sequences of low (>8 km extension) and ten of medium (3-8 km) frequencies - corresponding to the previous 3rd and 4th orders - were described. The definition and mapping of high frequency sequences (<300 m) is one of the contributions of this article. From the data collected in the 19 outcrop sections, the sedimentological and paleogeographic characterizations of the analyzed section were established. The stratigraphic framework defined and applicable to the study area is based on the individualization of medium frequency sequences and was very important for the preparation of 3D geological models.The stratigraphic analysis of the medium frequency sequences allowed identifying that the progradation of the deltaic system varied from 250 ° to 350 °. The observation of the high frequency sequences enhance the understanding of vertical distribution and lateral extension of permeability barriers (fade out?) and sandy bodies (potential reservoirs).The results obtained from the simulations of facies, with different provided data (bibliographic vs. field-collected), showed qualitatively and quantitatively the degree of success that high-resolution stratigraphy can bring to 3D reservoir modeling and to its application in the optimization of hydrocarbon exploitation.
773 _g
942 _cCONGTP
100 1 _aDe Moraes Lima Silveira, Miguel
_958473
100 1 _aArregui, Carlos Daniel
_948414
100 1 _aPederneiras Raja Gabaglia, Guilherme
_958474
100 1 _aVeiga, Gonzalo Diego
_958475
100 1 _aGalvao Carnier Fragoso, Daniel
_958476
111 2 _aCongreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza)
_9573
111 2 _aSimposio de Recursos No Convencionales (2018 nov. 5 - 9 : Mendoza)
_9781
650 0 _aLajas
_958477
650 0 _aEstratigrafía
_9783
650 0 _aReservorios
_9708
999 _c192698
_d192698
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SRNC/1278.pdf