当前位置: X-MOL 学术Energy Explor. Exploit. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
3D experimental investigation on enhanced oil recovery by flue gas assisted steam assisted gravity drainage
Energy Exploration & Exploitation ( IF 1.9 ) Pub Date : 2021-04-08 , DOI: 10.1177/01445987211006555
Lei Tao 1 , Xiao Yuan 1 , Sen Huang 1 , Nannan Liu 1 , Na Zhang 2 , Bingchao Li 1
Affiliation  

Flue gas assisted steam assisted gravity drainage (SAGD) is a frontier technology to enhance oil recovery for heavy oil reservoirs. The carbon dioxide generated from the thermal recovery of heavy oil can be utilized and consumed to mitigate climate warming for the world. However, most studies are limited to merely use numerical simulation or small physical simulation device and hardly focus on large scale three-dimensions experiment, which cannot fully investigate the enhanced oil recovery (EOR) mechanism of flue gas assisted SAGD, thus the effect of flue gas on SAGD production performance is still not very clear. In this paper, large-scaled and high temperature and pressure resistant 3D physical simulation experiment was conducted, where simulated the real reservoir to a maximum extent, and systematically explored the EOR mechanisms of the flue gas assisted SAGD. Furthermore, the differences between the steam huff and puff, SAGD and flue gas assisted SAGD are discussed. The experimental result showed that the production effect of SAGD was improved by injecting flue gas, with the oil recovery was increased by 5.7%. With the help of thermocouple temperature measuring sensors, changes of temperature field display that flue gas can promote lateral re-development of the steam chamber, and the degree of reservoir exploitation around the horizontal wells has been increased particularly. What’s more, the addition of flue gas further increased the content of light components and decreased the content of heavy by comparing the content of heavy oil components produced in different production times.



中文翻译:

烟气辅助蒸汽辅助重力排水提高采收率的3D实验研究

烟气辅助蒸汽辅助重力排水(SAGD)是一项前沿技术,可提高重油储层的采油率。重油热回收产生的二氧化碳可以被利用和消耗,以减轻世界范围内的气候变暖。但是,大多数研究仅限于使用数值模拟或小型物理模拟装置,而很少关注大型的三维实验,无法充分研究烟气辅助SAGD的提高采收率(EOR)机理,因此对烟道气的影响天然气对SAGD的生产性能仍然不是很清楚。本文进行了大规模,耐高温和耐压的3D物理模拟实验,最大程度地模拟了真实油藏,并系统地探索了烟气辅助SAGD的EOR机制。此外,还讨论了蒸汽吞吐和抽吸,SAGD和烟气辅助SAGD之间的差异。实验结果表明,注入烟气可提高SAGD的生产效果,采收率提高了5.7%。借助热电偶测温传感器,温度场的变化显示烟气可促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。讨论了蒸汽吞吐和抽吸,SAGD和烟气辅助SAGD之间的区别。实验结果表明,注入烟气可提高SAGD的生产效果,采收率提高了5.7%。借助热电偶测温传感器,温度场的变化显示烟气可促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。讨论了蒸汽吞吐和抽吸,SAGD和烟气辅助SAGD之间的区别。实验结果表明,注入烟气可提高SAGD的生产效果,采收率提高了5.7%。借助热电偶测温传感器,温度场的变化显示烟气可促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。实验结果表明,注入烟气可提高SAGD的生产效果,采收率提高了5.7%。借助热电偶测温传感器,温度场的变化显示烟气可促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。实验结果表明,注入烟气可提高SAGD的生产效果,采收率提高了5.7%。借助热电偶测温传感器,温度场的变化显示烟气可促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。温度场的变化表明,烟气可以促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。温度场的变化表明,烟气可以促进蒸汽室的侧向再开发,尤其是水平井周围的储层开发程度有所提高。此外,通过比较不同生产时间中生产的重油成分的含量,烟道气的添加进一步增加了轻质成分的含量并减少了重质成分的含量。

更新日期:2021-04-09
down
wechat
bug