In response to the reservoir characteristics, this paper present the multi-functional compound profile modification technology, which is a new technology combined profile technology with chemical edge-water encroachment technology to enhance oil recovery.

According to the geologic feature and waterflood performance of low-permeability fractured reservoir in Panguliang Chang-6 reservoir of Changqing Oil Field,a compound deep profile modification system composed of pre- crosslinked particle/waterflood fluid diversion agent/polymer gel was prepared.

Study on chromatographic fractionation effect of three?component compound flooding system in western area of Gudao.;

In view of the fact that the components of compound flooding are complex,at present,it is difficult to simultaneously determine any component concentration by using analytic method of single component sample,the derivative spectrographic method is proposed.

Feasibility of the ASP flooding in Northern Putaohua oilfield in Daqing;

Study on relation between interfacial tension and displacement efficiency of ASP flooding;

The lab experiments and oilfield pilot test show that ASP flooding is most practical in Hong Gang oilfield.

Numerical simulation of thermal-surfactant combination flooding for heavy crude reservoir;

Application of eletrodialysed oilfield effluent water in polymerflooding and combination flooding system;

A study on physico-chemical percolation mechanism of combination flooding system;

An HPLC method for the analysis of surfactant PS concentration in injected produced liquor has been established to meet the need of ASP flooding developed in Gudao West Block of Shengli Oilfield, with a minimum detectable limit of 0.