Multi-level description and analysis for displacement mechanism of multi-field synergy in steam injection

Taken potential field as research carrier and driving force of steam injection process as unity of purpose,with the concept of flow and force in irreversible thermodynamics being introduced to displacement process,the displacement mechanism of multi-field synergy in steam injection can be summarized as interrelationship of the dynamic potential fields and the resistance potential fields and interactions between the dynamic potential fields and the resistance potential fields based on the study on dynamic characteristics of oil displacement domain potential field.Although some achievements of multi-level description and analysis for displacement mechanism of multi-field synergy have been achieved,the following exploratory researches include the establishment of heat hydraulic mechanical mass transfer synergy model of steam flooding,the division of the structure of steam flooding domain dynamic potential field and resistance potential field,the construction of multi-level synergy flooding evaluation system formed of dynamic potential field and resistance potential field,the numerical simulation and the correlative experiment study should be further studied.These research results obtained can not only push the multi-field synergy study of porous media forward,but also provide theoretical instruction and technical support to enhance effectively the heavy crude producing ratio and rate.