有水吗?RPM解决方案

Spurr Naima, Lant Kimberly, S. Akshaya, Grey Billy
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摘要

对于油公司来说,石油生产中的水管理是一个日益繁重的问题。随着油田成熟并开始缺水,需要有效的处理措施来保持盈利。一种新的、更有效的相对渗透率改进剂(RPM)是对水的补救措施,对油有积极的影响。该应用适用于砂岩储层,既可以单独使用,也可以与酸刺激处理结合使用。该应用是近井水管理的一种强有力的长期解决方案。通过实验室和现场测量,展示了RPM对砂岩的水和油的影响。利用岩心流进行实验室分析,测量了温度为150°F至250°F(65.5°C - 121°C)的低至高渗透率Berea砂岩的恢复渗透率。现场测量包括对具有稠油储量的成熟高渗透砂岩地层进行处理前后的产量比较。作业区域为25-30英尺,井底静态温度为150-200°F,并使用了连续油管。实验室测试表明,在整个渗透率范围内,RPM处理可以减少80%以上的水,同时恢复90%以上的油渗透率。现场应用表明,初始处理减少了700桶水,同时产量翻了一番。随着井的稳定,一些最初的动力减慢,但显示出稳定的产油量增加,产水量减少,BS&W降低。
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Got Water? An RPM Solution
Water management in oil production is an increasingly burdensome issue for operators. As fields mature and begin to water out, effective treatments are needed to remain profitable. A new, more effective relative permeability modifier (RPM) is a remedy for water with positive effect on oil. The application is intended for sandstone reservoirs and can be used as a standalone treatment or in conjunction with an acid stimulation treatment. The application is a strong, long-term solution for water management at the near wellbore. Laboratory and field measurements are presented to show the effect of the RPM on sandstone for effect on water and oil. Laboratory analysis was conducted using core flow to measure regain permeability in low to high permeability Berea sandstone at temperatures of 150°F to 250°F (65.5°C 121°C). Field measurements include comparison of production of pre- and post-treatment of mature, high permeability sandstone formations with heavy oil reserves. Treatment zones were 25-30 feet with bottom hole static temperatures of 150-200°F and deployed with coiled tubing. Laboratory testing regain permeability showed that RPM treatment across the range of permeabilities could reduce water by more than 80% while regain permeability to oil is maintain a more than 90%. Field applications showed the initial treatment yielded a 700barrel (bbl) reduction in water while doubling oil production. As the wells stabilized, some of the initial momentum was slowed but showed stabilization of an increased oil production, lower water production and lowered BS&W.
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