Study Of Comprehensive Decision Technology Of Weak Gel Profile Modification

Weak gel control technology is a new technology between near-wellbore profile control and polymer flooding. Unique performance weak gel as a fliud transferred agent of deeper layers can improve the anisotropism of the reservoir and the effect of water flooding during the high water—cut period. In recent years, the technology has obtainod successful application in oilfield, attracting increasing attention. In this paper survey and studylots of literature of the experiments and profile control decision about weak gel,and systematically analyse gelation mechanism and profile modification mechanism. Introduce profile control decision technology of weak gel and based on BP neural network establish profile control decision model. Based on chemical agent numerical simulation at home and abroad By comprehensive consideration of gravity capillary pressure and liquid rock compressibility absorption resort pervation flow effeciency crosslinking reaction cut dispel of polymer and weak gel,found maths model of three-dimensional three-phase Six Components used in water drive polymer drive weak gel drive. Open up effect forecast software which can predict drive effect of weak gel and estimate Economic Effect of block and one well. Evaluate feasibility of the meassure Choose construction parameter(the type of blocking agent chroma dosage construction of injection pressure ). Enhance the success rate of message,at the same time, make the technology from experience semi quantitatively to quantitativity.