吉林油田调剖体系性能评价方法建立与应用

发布时间：2018-03-25 04:24

本文选题：调剖体系　切入点：冻胶　出处：《东北石油大学》2015年硕士论文

【摘要】：调剖技术已成为吉林油田高含水开发区块控水稳油、提高水驱采收率的主体技术。随着调剖技术的发展,堵剂的评价与应用研究直接影响着调剖剂体系的效果,制约着调剖效果的成败与发展,调剖调驱体系性能的的评价显得越来越重要。吉林油田注水油藏温度分布在30~100℃左右,地层渗透率分布从10~1000mD,地层优势通道有孔隙、自然人工裂缝、高渗条带等互相结合的方式,调剖难度较大。目前吉林油田调剖体系主要有凝胶、弹性颗粒、粉煤灰、橡胶颗粒、木屑、核桃壳、污泥、聚合物内聚微球、驱油剂及其相互复配的体系,每种体系评价方法各不相同。仅仅依靠行业标准评价体系,评价指标不全面,无法满足调剖体系多元化、复杂化的需求。结合调剖区块地质特征,形成了颗粒体系、冻胶体系、凝胶体系、微球体系、驱油体系及泡沫体系的性能评价方法,颗粒体系静态评价其吸水膨胀性能,动态评价其抗剪切性能、封堵性能、驱油性能;凝胶体系静态评价聚合物浓度、矿化度、稀释、抗剪切性能,动态评价其流变性能,封堵性能、驱油性能及分流率;驱油体系评价其界面张力、洗油性能、乳化能力、乳状液稳定性;凝胶复合体系评价其流变性;泡沫体系动态评价其封堵性能和驱油性能。评价优选的体系应用于扶余、红岗、新木、乾安等各个油田,取得了较好的应用效果。
[Abstract]:Profile control technology has become the high water cut development block of Jilin oil stabilization and water control, improving water flooding recovery of the main technology. With the development of profile control technology, the research and application of plugging agent evaluation system directly affects the effect of profile control agent, success and development restricts the effect of profile control, profile control and flooding evaluation the performance of the system is becoming more and more important. Jilin oilfield reservoir temperature distribution at 30~100 DEG C, the permeability distribution from the 10~1000mD formation of dominant channel pore, natural fracture, high permeability zone etc. with each other way, profile control is difficult. At present, Jilin oilfield system are mainly gel elastic particles fly ash, rubber, wood, walnut shell, sludge, cohesion of polymer microspheres, oil displacement agent and mixed system, evaluation methods of each system are different. Only rely on industry standard evaluation system, evaluation index is not complete Surface profile control system cannot meet the diversified and complex needs. Combined with the profile control block geological characteristics, forming a system of particles, gel, gel microspheres, system, performance evaluation method of oil displacement system and foam system, particle system and its water swelling properties of static evaluation, dynamic evaluation of the shear resistance and plugging the performance of oil displacement performance; evaluation system of static gel polymer concentration, salinity, dilution, shear resistance and dynamic evaluation of the rheological properties, plugging performance, oil displacement performance and flow rate; to evaluate the interfacial tension and oil displacement system performance, emulsifying capacity, emulsion stability; the evaluation of rheological properties of gels the dynamic evaluation system; foam plugging performance and oil displacement performance. The evaluation system is applied in Fuyu, Honggang, new wood, Qian'an and other fields, have gained good effect.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357

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