METHODOLOGY FOR POLYMER FLOODING EFFICIENCY EVALUATION ON EXAMPLE OF EAST-MESSOYAKHSKOE OIL FIELD

Abstract

The relevance. Polymer flooding is a technology that makes it possible to increase the efficiency of the development of existing oil and gas fields. At the same time, the implementation of the polymer flooding project requires additional investments. To justify additional investments and assess the economic efficiency of the entire project, a comprehensive methodology for evaluating the results of the application of polymer flooding technology, covering all elements of a complex system, is needed. The main aim of the research is investigation of the main constituent elements of the polymer flooding project; development of methodology for evaluating the efficiency of polymer flooding technology application. Objects of the research are unconsolidated viscous oil reservoir under development, as well as traditional reservoirs. Methods: critical analysis, content analysis, analysis, generalization and systematization of the existing experience of polymer flooding pilot projects, systematic approach. Results. The methodology for evaluating efficiency of polymer flooding technology implementation was developed, including a detailed assessment of the revenue side using analytical and numerical tools, a comprehensive assessment of the cost side and assessment of the economic efficiency of the entire project. Attention is paid to the assessment of incremental oil production using the existing methods at various stages of the project. The impact on operating costs is also shown. The main cost items in the implementation of polymer flooding were conceptually investigated and described. The technique is applicable at various stages of polymer flooding implementation from the planning stage of the pilot project and evaluation of its results after completion to the full-field implementation stage. The developed methodology makes it possible to systematically and comprehensively evaluate the effectiveness of polymer flooding projects. The technique is universal and equally suitable for both pilot projects and full-field implementation projects.

Keywords

• polymer flooding
• viscosity
• economic efficiency
• reservoir engineering
• efficiency