000 01624nab a2200217 4500
005 20260520000314.0
008 260224s2012 xxu ing
041 _aInglés
245 0 0 _aCarbonate porosity creation by mesogenetic dissolution: Reality or illusion?
_bDiscussion
260 _a
_b
_cfeb. 2012
270 _a08/04/2013 ; 07/05/2012
300 _a16 p. ; 217-233
520 _aTranscripción del resumen del autor: Many authors have proposed that significant volumes of porosity are created by deep-burial dissolution in carbonate reservoirs. We argue, however, that this model is unsupported by empirical data and violates important chemical constraints on mass transport. Because of the ubiquitous presence and rapid kinetics of dissolution of carbonate minerals, the mesogenetic pore waters in sedimentary basins can be expected to be always saturated and buffered by carbonates, providing little opportunity for the preservation of significantly undersaturated water chemistry during upward flow, even if the initial generation of such undersaturated pore water could occur. A review of the literature where this model has been advanced reveals a consistent lack of quantitative treatment. In consequence, the presumption of mesogenetic dissolution producing a net increase in secondary porosity should not be used in the prediction of carbonate reservoir quality.
581 _a2
773 0 _tAAPG Bulletin
_g96
942 _cARTICULO
100 1 _aEhrenberg, Stephen N.
_952543
100 1 _aWalderhaug, Olav
_952544
100 1 _aBjorlykke, Knut
_935491
999 _c187138
_d187138