Research On Reservoir Characterization Of Jia Second Section Jia Ling River Group In Chuan Zhong Area Moxi Structure

Uuder the guidance of new principles and methods of advancedcyclo-stratigraphy, carbonate reservoir geology, modern times sedimentology, naturalgas geology, through refined stratigraphical division comparative study, divided J₂²inferior section into A, B and C three sublayers, under this foundation developedimpenetrate, meticulous research for reservoir characterization, reservoir lower limit,reservoir genesis mechanism,reservoir prediction and evaluation etc, point out theprimary reservoir rock are crystalline powder pierite, arene pierite, ooide limestoneand mud crystalline powder pierite. the reservoir types is that give priority tointercrystalline dissolution pore, intragranular dissolution pore pore type reservoir,which constited by induced porosity, through analyze macro and microcosmiccharacter of different type reservoirs, point out J₂² inferior section B layer reservoirquality apparent excelled J₂¹ and J₂² inferior section A layer, and adopt multifoldmathematical technique, separate determined that physical property, and establishhigh pore, hypotonic carbonate reservoir classify scheme of J₂¹ inferior section,J₂²inferior section A layer for the first time, successfully introduce principal componentanalysis that possess operability to evaluate reservoir that possess complex lithologyand physical property characteristic, start with performance of the reservoir evolutive,indepth dissect the factor of intricacy carbonate reservoir top management andcausative mechanisms of J2 section and established genesis evolutionary pattern forcrystalline powder pierite and ooide limestone reservoir of J2 section, a utilize thesuccess of fancies probe reservoir modeling, optimize four species data to determinereservoir parameter of precipitation facies, porosity permeability, effective thicknessetc adopt multifactor congruence probabilistic method, successfully evaluate andforecast reservoir of different layer of J2 section distribution on plain and point outthe distribution aera of advantageous reservoir.