Jilin Oil Field Profile Control System Establishment And Application Performance Evaluation Method

Profile control technology has become a high water cut development block of jilin oilfield water control oil, improve the body of the water drive recovery factor stabilization technology. Along with the development of the profile control technique, the evaluation and application research of plugging agent directly influences the effect of profile control agent system, and development to the success of the restricts the profile control effect, profile control of oil displacement system performance evaluation is more and more important.Jilin oilfield water injection reservoir temperature distribution in about 30-100 ℃, formation permeability distribution from 10-1000 md, formation advantage channel pore, natural fractures and high permeability channel, combination of each other, profile control is difficult. Current profile control system of jilin oilfield mainly gel, elastic particles, fly ash, rubber particles, wood chips, walnut shell, sludge, oil displacement agent, polymer cohesive microspheres and their mutual distribution system, each system evaluation methods are quite different. Just rely on industry standard evaluation system, evaluation index is not comprehensive, unable to meet the needs of diversified and complicated profile control system. Combined with geological features of profile control block, formed the particle system, the gel system, gel system, micro ball system, oil displacement system and foam system performance evaluation method of particle system its water absorption expansion performance of static evaluation, dynamic evaluation of the shear resistance and sealing performance and the displacement performance; Gel system static evaluation of polymer concentration, salinity, dilution, shear resistance, dynamic evaluation of its rheological properties, sealing performance, oil displacement performance and FenLiu Lv; The interfacial tension of oil displacement system to evaluate the performance, wash oil, emulsification ability and emulsion stability. Gel composite evaluate its rheological property system; Foam system dynamic evaluate its sealing characteristics and displacement performance. Evaluation of optimization system is applied in fuyu, new wood, qianan, red hills, each oilfield, achieved good application effect.