This technology, using compositions based on cellulose ethers, provides an increase of reservoir sweep due to partial or complete blocking of watercut high permeability formations and subsequent redistribution of flood front. Polymer compositions based on ethers, cellulose-methylcellulose, carboxymethilcellulose, oxyethilcellulose, etc. are used to create an impermeable or low permeable barrier to filtration. The technology is used at late stage of development of oil fields, comprising heterogeneous as to permeability, reservoirs. The technology is widely introduced in oil fields of Tatarstan Republic during 10 years. About 2 min. of additionally produced oil has been obtained as a result of introduction. Specific technological efficiency makes up 400-500 t of additionally produced oil per one ton of injected reagent.

Patent №1501597 "Method of development of heterogeneous to permeability oil formations"

• selection of an object for injection, check of its state and preparation;
• determination of the quantity of cellulose ethers for composition's preparation;
• mounting and adjustment of the surface process equipment;
• the process of polymer composition preparation and its injection into the well;
• recommencement of flooding;
• analysis of the technology application results.

• Pumping units;
• Manifolds block;
• Road tanker, 8-10 m³;
• Unit for preparation and dosing of polymer composition.

• High technological efficiency
• Environmental safety
• Possibility of using water of any mineralization in polymer composition
• Low costs
• Possibility of using in any climate

• Consulting of clients when designing technological schemes for oil fields development
• Supervision in the course of our technologies introduction
• Calculation of technological efficiency as a result of our technology introduction
• Manufacturing and mounting of the unit for polymer composition preparation and dosing
• Training of personnel in technical operations

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