燃烧条件对火驱效果的影响  

Influence of combustion conditions on in-situ combustion effect

作　　者：杨永洪[1] 姚团军[1] 李涛[1] 李丽[1] 朱文光[1] 

机构地区：[1]中油新疆油田分公司,新疆克拉玛依834000

出　　处：《石油化工应用》2015年第3期36-40,共5页Petrochemical Industry Application

基　　金：国家重大科技专项"火烧驱油技术研究与应用";项目编号:2011ZX05012-002

摘　　要：对火驱燃烧条件的认识与评价是火驱油藏的重要环节。针对目前火驱过程中存在的燃烧过程不清楚及燃烧条件对火驱开发效果的影响不清楚等问题,进行了一系列室内模拟研究。研究了在不同的孔隙度、点火温度、注汽压力和注气量等燃烧条件对火驱效果的影响。实验结果表明,孔隙度越大火驱前缘的推进速度越快;预热温度和火驱前缘温度呈正相关关系;提高注气压力不仅可以维持火驱前缘正常推进和提高火驱前缘温度,还可以弥补低孔隙度油砂火驱技术的限制;随着注气流量的提供,前缘温度和前缘推进速度也在稳定提高。此次模拟实验为下一步提高油层产量、降低成本、提高产出比提供了一定的理论基础和研究路线。On the understanding and evaluation of fire flooding combustion condition is an important link of fireflooding reservoir. Onto the problems of fire flooding during the combustion process is not clear and influence of combustion conditions on in-situ combustion effect is not clear, a series of laboratory simulation studies have been carried out. Study the influence of combustion conditions such as porosity, ignition temperature, steam injection pressure and the volume of gas injection, on fire flooding effect. The results show that the porosity, the greater the fire flooding front advance faster, preheat temperature and fire flooding front temperature into positive correlation, to improve the gas injection pressure not only can maintain normal fire flooding front advancement and improvement of fire flooding front temperature, also can make up for the low porosity sands fire flooding technology limited,with steam injection flow increase, front temperature and front advance speed is steady increase. The simulation for the next step to improve the oil production, reduce the cost, improve the ratio of output to provide a theoretical basis and research route.

关 键 词：火驱 物理模拟 燃烧条件 火驱效果 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]