Affiliation:
1. CNOOC EnerTech-Drilling & Production Co, China
Abstract
In this paper, there are nine oil samples to explore the characteristics of formation oil at different CO2 injection rate, and the characteristics include bubble point pressure, volume expansion coefficient, viscosity, density, and average molecular weight, composition of gas and liquid phase, and asphalt sediment. According to the experimental results of early nine oil samples of swelling tests, in high temperature and high pressure conditions, characteristics and changing rules of properties of formation oil, including bubble point pressure, volume expansion coefficient, viscosity, density, and average molecular weight, composition of gas and liquid phase, and asphalt sediment, were evaluated and analyzed at different CO2 injection rate systematically. The research not only can provide guides for petroleum engineers when they need to adjust the injection and production programs, but also can provide comparatively comprehensive experimental rules for researches on enhanced oil recovery (EOR) mechanisms of gas miscible and nonmiscible flooding. Moreover, phase parameters of different formation oil system can be extracted for reservoir numerical simulation.
Subject
General Earth and Planetary Sciences
Reference15 articles.
1. Effect of N2 on phase behavior of formation crude in Niu20 fault block of Niuzhuang oilfield;L. I. Xiangliang;Petroleum Geology and Recovery Efficiency,2006
2. Study on gas injection swelling test for block WenXi3 in WenMi oilfield;Z. H. Yang;Tuha Oil & Gas,2004
3. Study on phase conversion of carbon dioxide and stratum crude oil of Yao Yingtai reservoir;W. Shi-zhong;Inner Mongolia Petrochemical Industry,2008
4. Simulation experiment of oil displacement by CO2injection into long core: an example from Fulin 3 member, Taixing oilfield. J.;H. Xu;Natural Gas Exploration and Development,2010
5. Pilot test of CO2huff and puff technology of single well in Pucheng Oilfield;X. L. Ma;Well Testing and Production Technology,2010
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献