N. Othman, I. Saaid, Afaque Ahmed, N. Yusof, R. Yahya, M. A. S. Yunos, E. N. E. Chik, M. R. Shari, H. Hassan, A. Mahmood
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引用次数: 3
摘要
放射性示踪剂技术在EOR项目中的干预已经开始使用商业岩心驱油装置。在整个实验中使用了一种商用的Berea岩心。本次实验选用99m Tc作为放射性示踪剂,其半衰期为6小时,释放出的伽马射线能量为0.104MeV。它是一种液体放射性示踪剂,活性为10GBq (270mCi),由马来西亚癌症研究所(IKN)洗脱和制备,然后运送到马来西亚石油大学(Universiti technologii Petronas)提高石油采收率研究中心(COREOR)的实验室。实验在3.5个半衰期后进行。因此,在注入系统内时,活度降低到大约(1.48GBq) 40mCi。研究结果可以帮助油藏工程师确定水示踪剂的准确突破点,确定水示踪剂在时间上的位置,确定岩心洪水的停留时间分布和平均停留时间,从而预测流体动力学。此外,在岩心驱油钻机内引入放射性示踪剂可转化为二次采油。他们的想法是将放射性示踪剂技术整合到现有的商用岩心驱油装置(FES350)中,以跟踪水驱作业期间流体的运动。此外,它可以被认为是放射性示踪剂在马来西亚提高采收率应用研究中的第一个相互作用。
Investigation of Water-Flooding Activity Using Radiotracer Technology in Commercial Core-Flood Set Up
An intervention of radiotracer technology in the EOR program has been initiated using commercial core-flood set up. A commercial type of Berea core is used throughout the experiment. 99m Tc is chosen as a radioactive tracer for this experiment, which has a half-life of 6 hours and emits gamma rays’ energy of 0.104MeV. It is a liquid radiotracer with the activity of 10GBq (270mCi), eluted and prepared by Institute Cancer of Malaysia (IKN) before transporting it to the laboratory at Centre of Research in Enhanced Oil Recovery (COREOR), Universiti Teknologi Petronas. The experiment was conducted after 3.5 half-lives. Thus the activity has reduced to approximately (1.48GBq) 40mCi during injection inside the system. The results can be used to assist the reservoir engineer in determining the exact water-tracer breakthrough, localize the location of water-tracer concerning time, and determine the residence time distribution and mean residence time of the core flood where the hydrodynamics of the flow can be predicted. Moreover, the introduction of radiotracer inside the core flood rig can be translated as secondary oil recovery. The idea is to integrate radiotracer technology into the existing commercial core flood set up (FES350) to track the movement of fluid during water-flooding operation. Besides, it can be considered as the first interaction of radiotracer in the enhanced oil recovery application studies in Malaysia.