Efficient Technologies for Enhanced Oil Recovery

The CPC reagent composition has been jointly developed by JSC "Policell", TatNIPIneft of JSC TATNEFT and OOO "Tatneft-KhimServis".
The technology is intended to involve in the development poorly drained or non-drained oil reserves by aligning the flood front and increasing the reservoir coverage. The composition "pulp-polymer complex" is injected into the reservoir for this purpose, which is a natural origin polymer additionally comprising dispersed components of organic and inorganic origin. The stable to biological degradation natural polymer applied in this technology possesses one important feature: its viscosity increases up to three times with mineralization increase. This allows applying the CPC at sites with any injected water salinity.
The CPC reagent is a composition of dispersed components of organic and inorganic origin with a wide range of the particles dispersion. There are three different modifications of the CPC reagent and its application taking into account the treated targets' properties increases the efficiency of the technology.
The polymer in the composition of the CPC performs simultaneously several functions: it is a dispersion medium stabilizer, agent of additional crude oil displacement from less permeable part of the reservoir, as well as an additional blocking agent at the expense of generating highly viscous solutions in the formation amplifying the effect of dispersed components.
The advantages of the technology also include the all-season application, environmental safety and the lack of irreversible clogging effect.
The technological process is implemented with application of standard oilfield equipment  - integrated units of KUDR type. The formation treatment is performed through injection wells.