半解析产能预测模型及其流动耦合方法综述  

A review of semi-analytic production prediction models and flow coupling methods

作　　者：韩国庆[1] 舒晋 董亚 岳震铎 梁星原 HAN Guoqing;SHU Jin;DONG Ya;YUE Zhenduo;LIANG Xingyuan(School of Petroleum Engineering,China University of Petroleum,Beijing 102249,China)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249

出　　处：《非常规油气》2025年第1期85-94,共10页Unconventional Oil & Gas

基　　金：中国石油大学(北京)科研基金项目“深层气藏泵抽排液采气优化技术研究”(2462021XKBH011)。

摘　　要：针对产能预测半解析模型及其流动耦合原理缺乏系统性研究的问题,为了系统地总结产能预测半解析模型及其流动耦合方法的基本原理和发展现状,开展了文献调研、原理分析和归纳总结等方面工作。研究结果表明:1)产能预测模型包括解析模型、数值模拟模型以及半解析模型。其中,半解析模型综合了解析模型的严格数学推导和数值模拟模型的复杂情形处理能力,展现出高精度与快速计算的优势。2)解析方法虽通过严格的数学推导求解偏微分方程,但处理油藏及井筒复杂性有限;而数值方法虽可描述复杂油藏情况,其计算精度和速度却受到离散化程度的限制。3)多场耦合是半解析模型的核心优势,不同耦合问题需建立合适的模型来求解耦合方程组。这些耦合模型根据应用场景的不同而具有不同的设计和应用需求。该研究成果有助于油田现场技术人员选择合适的产能预测模型并有效地处理复杂的耦合问题,对未来油藏管理和优化制度提供了重要的理论支持和实际指导。A systematic study of semi-analytical production prediction models and their flow coupling principles is lacking.This paper undertakes a comprehensive approach,including a literature review,principle analysis,and summarization to systematically summarize the fundamental principles and current status of semi-analytical production prediction models and their flow coupling methods.The study results indicate as follows:1)Production prediction models include analytical models,numerical simulation models,and semi-analytical models.Among these,semi-analytical models integrate the rigorous mathematical derivations of analytical models with the capacity of numerical models to handle complex scenarios,showcasing advantages in precision and computational speed;2)While analytical methods solve partial differential equations through strict mathematical derivations,their ability to address the complexities of reservoirs and wellbores is limited;numerical methods,capable of depicting complex reservoir situations,are constrained in precision and speed by the degree of discretization;3)Multi-field coupling is a core strength of semi-analytical models.Different coupling issues require the establishment of appropriate models to solve the coupled equations.These coupling models vary in design and application needs depending on the scenario.These findings assist field technicians in selecting appropriate production prediction models and effectively handling complex coupling issues,providing significant theoretical support and practical guidance for future reservoir management and optimization schemes.

关 键 词：耦合 产能预测 半解析模型 建模与求解 

分 类 号：TE319[石油与天然气工程—油气田开发工程]