中原油田CO2吞吐技术及增产应用
CO2 huff and puff technology and oil increase application in Zhongyuan oilfield
刘琼1
作者信息
- 1. 中石化中原油田分公司石油工程技术研究院,河南 濮阳 457000
- 折叠
摘要
中原油田部分油藏分布零散、储量小、注水困难或属稠油,而具备这些特点的油藏恰好适用于进行CO2吞吐.基于中原油田CO2吞吐实践,本文介绍了筛选适合CO2吞吐的油藏的方法,探索了CO2吞吐选井机制并总结出选井原则,确立了CO2吞吐选井方法.此外,围绕4种不同特性的油藏开展了CO2吞吐试验,分别实现增油348.13 t(260 d)、172.0 t(240 d)、20 t(45 d)和108 t(120 d).本研究为通过CO2吞吐提高原油采收率、开拓未来CO2吞吐实施应用前景提供了有效依据.
Abstract
The reservoirs in Zhongyuan oilfield are scattered,with small reserves,difficult water flooding or belong to heavy oil,and reservoirs with these characteristics are suitable for CO2 huff and puff.Based on the CO2 huff and puff practice in Zhongyuan oilfield,this paper introduced how to screen reservoirs suitable for CO2 huff and puff,explored the CO2 huff and puff well selection mechanism,summarized the well selection principles,and established the CO2 huff and puff well selection method.In addition,we carried out CO2 huff and puff tests around four different reservoirs,achieving oil increases of 348.13 t(260 d),172.0 t(240 d),20 t(45 d),and 108 t(120 d),respectively.Our research provides an effective basis for enhanci oil recovery and future CO2 huff and puff applications.
关键词
中原油田/CO2吞吐选井/提高采收率/CO2驱油Key words
Zhongyuan oilfield/CO2 huff and puff well selection/enhanced oil recovery/CO2 oil displacement引用本文复制引用
出版年
2024
NETL
NSTL
万方数据