| On the basis of the water flooding numerical simulation of IV5-11block in Shuangheoil-field.apply CMG software to track and simulate ASP flooding.sum up the experiences ofhistory matching.give out the entire area and single well history matching method. And usethe formula editor function of CMG to calculate the residual oil under different water leveland abundance.quantitatively analyze remaining oil distribution law of the present stage.guidefield to exploratf remaining oil. On the basis of accurate history matching,comprehensivelyconsider technical indicators of development effect and economic benefit.optimize formula ofvice plug.and decreases the concentration of surfactant and alkali in vice slug formula to1000mg/L and6000mg/L.Applying the flexibility of numerical simulation to analyze the sensitivity of thedisplacement parameters and the injection-production parameters.and mathematical statisticsmethod is applied to value the influence of parameter change on the development effect.According to the influence degree size.In terms of displacement system,the tern is Oil-waterinterfacial tension.polymer viscosity.polymer adsorption.surfactant adsorption. In terms of theinjection-production system.the tern is injection-production ratio injection speed and injectiontiming.Finally,establish the typical mechanism model, optimize the extraction liquid timing andextraction fluid, simulate application effects of the fracturing,fluid diversion, layeredproration,finding out that the fracturing solve the updip area for lack of liquid effectively,andfluid diversion work well in preventing channeling.At last, layered proration reduces thewater invasion well, Provide a theoretical basis for the scene to carry out the dynamicadjustment measures. |
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