Changxing Group Of Reefs And Reservoir Research In The Z Area Of Eastern Sichuan

Organic reefs reservoir is a kind of important reservoir of oil and gas, it has thecharacteristics of high porosity and high permeability with a unique pore space.Organic reefs reservoir geological condition is complicated, however, belong to thecomplex oil reservoir, has the certain difficulty of exploration.The organic reefs of Changxing Group in the Z area of Eastern Sichuan is themain gas bearing of Marine carbonate rocks in Sichuan Basin, the analysis of thetechniques on the organic reefs favorable facies belt prediction has an importantsignificance on exploration and production of the reefs reservoir. In this paper, theorganic reefs and reservoir of Changxing Formation in the Z area of Easter Sichuanresearch, with the method of combining the geological, seismic, logging, on the basisof organic reefs depositional model, in search of organic reefs reservoir. By seismicattribute analysis technology, jet lag analysis technology, layer flattening techniqueclassify the reefs favorable facies belt, summarizes the reefs marked characteristics offavorable facies belt, and through the spectrum decomposition technique and RGBfusion technology fine depict reefs favorable facies belt boundary. Then through thetrace Integration analysis technology, recursive inversion technique, model inversiontechnique for organic reefs reservoir prediction, and the organic reefs reservoir fluididentification was exploratory researched.