摘要
多元热流体吞吐是一种新型的海上稠油热采技术。提出了多元热流体吞吐数学模型,对多元热流体吞吐进行了数值模拟研究,就产油曲线、温度、原油黏度及压力分布特征,与热水吞吐、蒸汽吞吐等开发方式进行了对比分析。模拟结果表明,在注入热量、温度、速度和焖井时间均相同的条件下,多元热流体吞吐相对于热水吞吐和蒸汽吞吐的热波及区域大,保温保压效果好,原油降黏分布区域大、降低程度高,且具有更长的生产周期和累计产油量。
Multiple thermal fluid huff and puff was a new technology of thermal production of offshore heavy oil reservoirs.A mathematical model of multiple thermal fluid huff and puff was established,a numerical simulation was carried out for the thermal fluid huff and puff.The characteristics of production curve and distribution of temperature,oil viscosity as well as pressure of multiple thermal fluid huff and puff were studied,the production modes for hot water soak and steam soak were analyzed by numerical simulation.Results show that under the condition of same injected heat quantity,temperature,velocity and the same soak time,the multiple thermal fluid huff and puff can achieve larger thermal expansion areas compared with hot water and steam soaks,better temperature and pressure are maintained,oil viscosity reduction is widely distributed with higher reduction degree,and it has longer production period with higher accumulated oil increment.
出处
《石油天然气学报》
CAS
CSCD
2014年第4期135-139,9,共5页
Journal of Oil and Gas Technology
基金
国家科技重大专项(2011ZX05024)
关键词
水平井
稠油热采
多元热流体
吞吐
数值模拟
horizontal well
heavy oil
multiple thermal fluid
huff and puff
numerical modeling
