000			02893nmc a2200289 4500
005			20260520005441.0
008			260224s2018 xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015657
245	0	0	_aModelos de velocidad para shales orgánicas de Vaca Muerta calibrados con datos de laboratorioy de pozos
260			_a _b _c2018
270			_a06/07/2022 ; 27/02/2019
300			_a17 p. ; 1-18
520			_aUnconventional reservoirs have been extensively explored and developed in the last years. These reservoirs are characterized by having very low permeabilities (below 0.1mD) and they need to be hydraulically fractured in order to generate high conductivity channels. Hydraulic stimulations produce an important amount of induced fractures in the reservoir that interact with pre-existing natural fractures. The interaction generates a complex network of fractures that facilitates the flow of hydrocarbons from the rock to the wellbore. One important aspect of this process is the packing of proppants that may keep the fracture open and conductive, during the producing life of the well. However, far from the well, the distribution of proppants is not always efficient and the hydraulic properties of the induced fractures, with very little or even no proppants, can significantly differ from those of the main fractures. There is a great deal of uncertainty about the impact of the unpropped or closely unpropped fracture network on the ultimate recovery of wells. Special conductivity tests are required to mimic the fractures with either very low concentration or noproppants at reservoir conditions, to understand and evaluate the contribution of such ‘far field’ fractures. In this paper, we present results of conductivity tests of fractures with and without proppants, under the influence of stress cycles. The tests were performed on induced fractures of Vaca Muerta formation cores. The results show a clear hysteresis effect with degradation of the fracture conductivity as a function of the applied effective stress. These tests, under realistic conditions, bring substantial information for the analysis of well performance, the definition of draw down protocols and the optimization of the stimulation design.
773			_g
942			_cCONGTP
100	1		_aBlanco, Gonzalo _9888
100	1		_aRavazzoli, Claudia L. _9889
100	1		_aSoldo, Juan Carlos _9890
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza) _9573
111	2		_aPrograma de estudiantes (2018 nov. 5 - 9 : Mendoza) _9798
650		0	_aFísica de rocas _9891
650		0	_aVaca Muerta _9566
650		0	_aNo convencionales _9838
999			_c128457 _d128457
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/Progr.Est/1387.pdf