碳酸盐岩石物理问题.docx

碳酸盐岩石物理问题.docxCarbonateRockPhysicsIssuesEnruLiu,,ShiyuXu,GregorBaechle,,InternationalPetroleumTechnologyConferenceThispaperwaspreparedforpresentationattheInternationalPetroleumTechnologyConferenceheldinDoha,Qatar,7-(s).Contentsofthepaper,aspresented,havenotbeenreviewedbytheInternationalPetroleumTechnologyConferenceandaresubjecttocorrectionbytheauthor(s).Thematerial,aspresented,doesnotnecessarilyreflectanypositionoftheInternationalPetroleumTechnologyConference,itsofficers,,distribution,,<notxm8ore3th3a,n3i0c0awrordos;,illuXstr5ation-sm83a6y,・be,cfoapxie+-%ofoilandgasproductionworldwide,yetseismicresponsesincarbonaterocksarepoorlyunderstood・,suchasmoldic,vuggy,interparticle,andintraparticle・plexporesystemcreatessignificantscatterintheporosity-velocityrelationship,asindicatedinexperimentalresults(,2001).Poreshapeappearstobethedominantfactorincarbonaterockphysics・Moldic,intraframe,andvuggyporestendtoberoundedandmaketherockstronger(faster)(.,microcracks),itiscriticaltodeveloparockphysicsmodelcapableofhandlingdifferentporetypes・Inadditiontoporetypesandporeshapes,otherfactorsneedtobeincludedinaphysics-,multiphasefluidsandwettingeffects,rock-fluidinteractions(poro-elasticity),stresseffects,anisotropy,heterogeneityandscaleeffects,chemicalchangestotheframework,andcorrectionsforenvi