We consider the problem of displacement processes in a three-layer fluid in a Hele-Shaw cell modeling enhanced oil recovery processes by polymer flooding. The middle layer sandwiched between water and oil contains polymer-thickened-water. We provide lower bounds on the length of the intermediate layer and on the amount of polymer in the middle layer for stabilizing the leading front to a specif...

This article discusses development of the "Polymer flooding" module for distributed information system of oil fields development analysis. This module is designed to simulate displacement of oil using polymer injection method for 1532 Timur Imankulov et al. enhanced oil recovery and based on modern mathematical model that considers influence of salt and polymer concentrations on viscosity of in...

A parallel reservoir simulator has been developed, which is designed for large-scale black oil simulations. It handles three phases, including water, oil and gas, and three components, including water, oil and gas. This simulator can calculate traditional reservoir models and naturally fractured models. Various well operations are supported, such as water flooding, gas flooding and polymer floo...

Injection of alkaline solutions in reservoir leads to mineral dissolution and precipitation, possibly resulting in changes in permeability and porosity, and consequently altering solution pH. Accurate prediction of pH, alkali consumption and aqueous chemistry changes are required to design suitable chemical blends in alkaline-polymer (AP) or alkaline-surfactant-polymer (ASP) flooding. Excessive...

China’s economy is in an important period of rapid development, the rise various industries to produce a greater demand for oil, oil exploitation industry has become focus whole society. The vast majority fields China have entered polymer flooding development stage, and reservoir been effectively improved. subsequent water can make further excavated, which key technology recent years. This pape...

The presented work discusses increasing oil recovery factor using physicochemical EOR methods.
 This article presents the field pilot tests results related to cyclical gel polymer flooding technology as applied under conditions productive reservoirs rich in high-viscosity oils (viscosity reservoir above 300 mPa s) of Buzachi North field, extending boundaries application these methods. used...