人工举升系统成功举升高浓度硫化氢油-案例分析

Abid Rehman, M. Abdelbary
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引用次数: 0

摘要

由于原油成本较低,在过去的几年里,运营商很少钻探井。再加上2020年初全球大流行导致的世界经济崩溃,为了应对运营商的运营费用,现在比以往任何时候都更有必要使用人工举升方法从先前关闭的井中举升或最大化当前井的产量。人工举升是一个广阔的领域,单井举升方式不同。因此,选择最佳举升方法至关重要。在经济最不景气的情况下,经济分析和技术审查将对人工举升系统(ALS)的应用起决定性作用。喷射泵系统是关井举升最可靠的人工举升系统之一。该系统的安装时间非常短,可以立即开始生产。然而,如果设计不严谨,该系统可能会非常昂贵。这篇论文是关于提升一口不能自然流动的井。位于伊拉克北部的B3直井于2018年5月钻探,总深度为521米。但由于该井无法实现自然流动,因此根据完井情况、井下压力、温度和储层流体性质等因素设计了喷射泵。利用喷射泵评估与建模软件对井下喷射泵和地面抽油机的需求进行评估与设计。该井的产量约为1700桶/天。由于在安装喷射泵之前,该井没有流动,因此大部分生产数据是在部署ALS之后获得的,并相应地优化了生产。该产品硫化氢含量也很高,为了人员、设备、管线和环境的安全,需要进行相应的处理。本文详细介绍了喷射泵系统在高浓度含酸气井中的应用、优化和运行情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Successful Lifting of Oil with High Concentration of Hydrogen Sulfide by Artificial Lift System – Case Study
Due to the low cost of crude oil, it is highly unusual for the operators to drill exploration wells, for the past few years. Adding that as well to the world's economy collapse due to the pandemic at the start of 2020, it is now more than ever a necessity to use artificial lift methods to lift from previously shut-in wells or maximize current production of the wells, as to grapple with the running expenses of operators. The artificial lift is a vast field with different lift methods applicable to a single well. Hence, the selection of an optimum lift method is critical. During the worst economic slump, the economic analysis will play a decisive role in the application of an artificial lift system (ALS) along with a technical review. The jet pump system is one of the most reliable artificial lift systems for lifting shut-in wells. The installation time of this system is minimal, and production starts right away. However, the system can prove to be very expensive, if the design is not done critically. This paper is about lifting a well that was not able to flow naturally. The vertical well B3 located in northern Iraq was drilled in May 2018 to a total depth of 521 meters. But the well was not able to flow naturally, and the jet pump was designed for the well based on well completion, downhole pressures, temperature and reservoir fluid properties. The evaluation and design of the downhole jet pump and surface pumping unit requirements were performed on Jet Pump Evaluation and Modeling Software. This well produced approximately 1700 BOPD. Since, the well was not flowing before the installation of the jet pump, most of the production data was obtained after deployment of ALS and production was optimized accordingly. The production had a high content of Hydrogen Sulfide as well, which was treated accordingly for safety of personnel, equipment, flow lines and environment. This paper describes the details about the application, optimization and operation of the jet pump system deployed on inactive wells with a high concentration of sour gas.
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