000			01642nmc a2200205 4500
005			20260520005607.0
008			260224s2001 xxu ing
041			_aInglés
245	0	0	_aModeling Aspects of Wellbore Stability in Shales _bSPE 69529
260			_aDallas, Texas _bSociety of Petroleum Engineers _c2001
270			_a12/09/06 ; 17/07/01
520			_aDrilling problems associated with wellbore instability are normally aggravated when crossing shale layers. Instabilities in shales may be caused by a complex mechanism of shale-drilling fluid interaction and by the overstress of the rock formation. Wellbore stability models that include some aspects of this coupled phenomenon have already been developed. However, the use of these models without the knowledge of the associated simplifications may lead to wrong conclusions. The present paper discusses the modeling aspects of the coupled process. Three formulations are compared: an analytical elastic solution without the diffusion process, an analytical poroelastic solution and a numerical chemical-hydro- mechanical model. The objective is to analyze the applicability of each model.
942			_cCONGTP
100	1		_aFrydman, M. _96210
111	2		_aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) _95738
711	2		_aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) _95738
800	1		_aFrydman, M. _96210
999			_c131037 _d131037
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69529.pdf