海上CO2驱研究进展及潜力评价

 概括了国内外海上CO₂驱技术研究成果和已开展项目实施经验,总结了海上CO₂驱方案设计、实施工艺和监控措施等方面获得的技术突破与经验。在此基础上运用油藏工程、数值模拟技术手段,设计了目标油田的CO₂驱方案,并评估了提高采收率与埋存的潜力。研究表明,该技术在提高海上油藏采收率的同时可提高天然气资源利用率。

Offshore CO2 flooding projects and the potential evaluation in Woffshore oilfield

In view of the highly developed industry and agriculture in China coastal cities, the pressure of the greenhouse gas emissions greatly increases, meanwhile, more and more oil and gas reserves with high CO₂ content are found in China offshore oilfields, whose development is facing great challenges. A feasibility study of the offshore CO₂ flooding application in China offshore oilfields "A" is carried out. Firstly, the worldwide researches and applications of offshore CO₂ flooding are reviewed, including the key technology breakthroughs, the field performance and the valuable experience. Secondly, the design and the optimization of CO₂ flooding in China offshore field"W" are made based on the reservoir engineering and the numerical simulation and its potential enhanced recovery and sequestration are evaluated. Finally, the outlook of China offshore CO₂ flooding is evaluated. It is shown that this technology could improve the recovery of offshore oil reservoirs and improve the utilization rate of natural gas resources, which also provides a new way for the reduction of the greenhouse gas emission.