Evaluation Of The Effect Of Water Injection Well4067Fuchang Area

Evaluation of the effect of water flooding reservoir, always runs through the wholeprocess of oil field water injection development.The purpose of evaluation of waterflooding effect, finds out the factors affecting development result, analysis of the existingproblems, clear oil potential, study tapping technology, make corresponding measures, carryout comprehensive adjustment, improve development effect. Reservoirwith lowpermeability, low permeability, long-term since use natural energydevelopment, measures toincrease production but also to the reservoir fracturing reformation as the mainmeans, fracturing of oil wells is too frequent, althoughfracturing after the obvious effect ofincreasing yield, but the formation pressure drops too fast, the yield decreased significantly.Water injection well injection has been voted5to8years, Chang2oil-bearing formation hasbeen in rapid yield decline, rapidly risingstage of comprehensive water content.This topic research content is Do the water flooding effect evaluation region to findout the changes of oil reservoir production and pressure and water content, water absorptioncapacity and injection production balance, Oil-water distribution and The reservessituation.For the problems put forward effective measures, in order to ensure the oil " notegood water,Injection enough water, fine water flooding, effective injection".Through the injection well network and pressure system adaptability analysis showsthat the control degree of water flooding of study area is good, have potential to improvethe well spacing density and injection production ratio, according to the present wellpatterndistribution, can take the "local point" measures, If the liquid production quantityincreases to meetrequirements of stable production,can improve the injection amount, Increasethe injection wells, recovery formation pressure. According to the reservoir reserves producingdegree evaluation, think producing degree of plane of the area, waterflooding reserves indirection is poor, reservoir has a large area of water flooding, high water content, the waterdrive characteristic curve line segment is obvious, but according to the reservoirgeology,development characteristic, is still in the development stage of middle,also has stableyield potential, so based on the take all kinds of oil and water wells measuresof adjustment, take the well pattern infilling and slicing mining, improve the control degree of water flooding reservoir, expand water flooding is the key to improve oilreservoir development effect.