03424nmc a2200373 4500 20260520010357.0 260224s2018 xxu esp Español 068.82 553.28 C62 2018 0015655 Desarrollo del play tight gas zona glauconítica, bloque Arenal, Cuenca de Magallanes - Chile : Caso de estudio 2018 01/07/2022 ; 07/03/2019 22 p. ; 455-477 The zona glauconítica in the Arenal Block of Tierra del Fuego Island, in southern Chile, has been under exploitation since 2011 and currently contributes with more than 60% of ENAP ś gas production in the Magallanes basin. The reservoir encompasses 40 km2 of area of fine-grained marine rocks with an average gross thickness of 50 meters.This paper presents the current state of development in this unconventional tight gas reservoir, mainly composed by interbedded wackes and siltstones. The petrophysical characterization was based on electrical well logs and well cores analysis such as: X-ray diffraction, infrared spectroscopy, and porosity and permeability measurements. It was determined that the best petrofacies corresponds to wackes with secondary porosity, due to grains dissolution. With an average low permeability (<0.1mD), the use of hydraulic fracturing for reservoir ś stimulation is mandatory, in order to ensure commercial production. Fracture design is managed within a threshold of operational net pressure in order to contain the fracture within the reservoir thickness. Currently, 150 massive hydraulic stimulation treatments have been carried out (one stage per well) mainly, using treated water or hybrid (treated water and linear gel) as fracture fluid .Based in 3D seismic, we interpret a subtle, west-southwest dipping monocline without prominent structural faulting and closures. However, a polygonal fault system (PFS) is interpreted from a combination of seismic horizon and volume attributes. PFS location have been accounted for development drilling (PAD) design as they might cause partial reservoir compartmentalization and possible control in the orientation of the induced hydraulic fractures.Currently, there are more than 100 wells producing wet gas with a 50-60 °API condensate. Initial flow rates ranges from 20 Mm3/d to 100 Mm3/d and the most productive zone it is located to the northwest part of the reservoir area. CONGTP González González, Ángel 58515 Valderrama, José Manuel 58516 Gschaider, Carlos Tomás 58517 Adaros Cárcamo, Rodrigo 58518 Verdugo Dobronic, Martín 58519 Canessa Di Santo, Néstor Diego 58520 Pérez Pérez, Álvaro 58521 Velásquez Arauna, Aníbal 58522 Sánchez Ojeda, Jesús 58523 Ahumada Villar, Mauricio 58524 González Vidal, Miguel 58525 Congreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza) 573 Simposio de Recursos No Convencionales (2018 nov. 5 - 9 : Mendoza) 781 Tight gas 701 Fractura hidráulica 58526 192715 192715 https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SRNC/1477.pdf 0 0 0 0 260434 CDIAPG CDIAPG 068.82 553.28 C62 2018 0015655 2026-03-06 200065017 0 068.82 553.28 C62 2018 0015655 200065017 2026-03-06 00:37:05 2026-03-06 ARCHIVO