注蒸气多场耦合驱油机理的多层次描述与分析  

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

作　　者：刘扬[1] 成庆林[1] 项新耀 王志国[1] 魏立新[1] 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2011年第3期68-71,119,共4页Journal of Daqing Petroleum Institute

基　　金：国家自然科学基金资助项目(51051002)

摘　　要：以"势场"为研究载体,提供注蒸气驱油过程动力为统一目标,将不可逆热力学中"流"与"力"的概念引入驱油过程,在研究驱油域势场动力学特征的基础上,注蒸气多场耦合的驱油机理可概括为动力势场之间、阻力势场之间及动力势场与阻力势场之间3个层次.尽管已在注蒸气驱油过程多场耦合的多层次描述与分析方面取得一些研究成果,仍需要开展探索性研究:完善驱油过程热—水力—力学—传质耦合的数学模型、准确划分驱油域势场的动力与阻力结构组成、定义各层次耦合机制的耦合参数及相关数值模拟与实验研究.所取得的研究成果可推动多孔介质内多场耦合研究发展,并为有效提高稠油动用程度和采出速率提供理论和技术支持.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.

关 键 词：蒸气驱 多场耦合 驱油机理 多层次描述 

分 类 号：TE345[石油与天然气工程—油气田开发工程] TK121[动力工程及工程热物理—工程热物理]