Study On Water Flooding Adjustment Method For S Block In DY Oilfield

With the oil energy demand increasing in china, the exploration of oil resources during the development and utiliSation. In present, high-permeability reservoirs have generally beenin the high water content or high water cut stage,low permeability reservoir resources is gradually becoming the main development target. Due to low permeability and the development of difficult problems in low permeability. For low permeability water flooding reservoir, how to make a reasonable adjustment of water injection, Rational and efficient use of water injection, each reservoir to maximiSe the effective utiliSation of enhanced oil recovery.This paper aimed at the water flooding adjustment method research of Merchant Area Spieces has carried out the following research contents:First of all, according to the static data and dynamic data from the Merchant Area Spieces,it has analySed the geological characteristics and development characteristics of thepieces and mapped the comprehensive development curve of production status in order tounderstand the development problems of the research wellblock currently.Second, according to the multiple factors regulate the method of injection-production ratio, bottom hole flowing pressure, oil and water Wells is considered well pattern form, water oilratio and speed of production factors, established the research block to consider many factorsdetermine the injection-production ratio formula, determine the qing five pieces of reasonableinjection-production ratio and injection rate;Study block is analySed and the geological factors, human factors and comprehensive factors such as parameters, the grey correlation analysismethod, to determine the various factors and correlation of, some main factors affecting waterinjection, according to the main factors to determine the weighting factors, and establish the formula of single well water injection, water injection intensity formula and little layer water injection formula and water injection strength formula, and has carried on the water injection adjustment of each small layer.The last,according to the static data of wellblock，using the Petrel software build basedon random modeling methodphase3d geological model, according to dynamic data, using theEclipse software establish the numerical simulation model of the block, with reserves offitting and the historical fitting, the fitting precision is within the scope of the permit,according to the fitting results, combining to determine the formation of adjustment scheme,numerical simulation method was applied to solution development effect are made todetermine the feasibility of the scheme.