稠油热采方法研究进展及应用效果评价  

Research Progress and Application Effect Evaluation of Thermal Recovery Methods for Heavy Oil

作　　者：胡海光 Hu Haiguang(College of Petroleum Engineering,Xi'an Shiyou University,Xi'an Shaanxi 710065)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《中外能源》2024年第10期62-68,共7页Sino-Global Energy

摘　　要：热采是提高稠油采收率的主要方法之一,主要通过降低原油黏度,增大稠油流动性,提高最终采收率。目前我国稠油热采方法主要有蒸汽吞吐、蒸汽驱、蒸汽辅助重力泄油、火烧油层4种,由于单一热采方法提高采收率受限,于是在常规热采方法的基础上又发展起来了多元复合热采技术。在常规稠油热采方法及生产实际的基础上,分析得出稠油热采指标界限,并形成热采效果评价流程。得到以下认识:蒸汽吞吐、蒸汽驱、蒸汽辅助重力泄油、火烧油层是常规稠油油藏的主要热采方法,多元复合热采是超深稠油、薄层稠油开采的接替方法。在实际使用过程中,各种方法都存在一定的局限性,需要根据稠油特点、流体参数、地质参数等技术指标优选最佳热采方法。今后需进一步加强注采参数对采收率的影响、热量传导规律、热采效果评价以及与“双碳”目标关联性等方面的研究。Thermal recovery is one of the main methods to improve heavy oil recovery,and the ultimate re-covery may be improved by reducing the viscosity of crude oil and increasing the fluidity of heavy oil.At present,there are four main thermal recovery methods for heavy oil in China:steam stimulation,steam flood-ing,steam-assisted gravity drainage,and in situ combustion.Due to the limitation of improving oil recovery by a single thermal recovery method,multi-component thermal recovery technology has been developed based on conventional ones.Based on the conventional methods and production practices for heavy oil thermal recovery,the limits of the thermal recovery index for heavy oil are known through analysis,and the evaluation process of the thermal recovery effect is formed.The following conclusions are obtained:steam stimulation,steam flood-ing,steam-assisted gravity drainage,and in situ combustion are the main thermal recovery methods for con-ventional heavy oil reservoirs,and multi-component thermal recovery is a successor method for ultra-deep heavy oil and thin-layer heavy oil.In actual use,various methods have certain limitations,and it is necessary to select the best thermal recovery method according to the characteristics of heavy oil,fluid parameters,geo-logical parameters,and other technical indicators.In the future,it is necessary to conduct more research on the influence of injection-production parameters on recovery,heat conduction law,thermal recovery effect evalua-tion,and correlation with carbon peaking and carbon neutrality goals.

关 键 词：稠油热采 多元复合热采 降黏 采收率 热采效果评价 注采参数 

分 类 号：TE345[石油与天然气工程—油气田开发工程]