测井技术2024，Vol.48Issue(3)：326-333,8.DOI:10.16489/j.issn.1004-1338.2024.03.006
基于流固耦合传热模型的井下注天然气流量测量仿真研究
Simulation Research of Underground Gas Injection Flow Measurement Based on Fluid-Structure Coupled Heat Transfer Model
摘要
Abstract
Oil well gas injection is a common measure to improve oil recovery and prolong oil field production life. Gas (natural gas, carbon dioxide, air, etc.) is injected into oil reservoir through injection wells to maintain or restore oil reservoir pressure, so that the oil reservoir has a strong driving force, and then improve the production speed and recovery efficiency of the oil reservoir. Considering the stability of gas source, cost, transportation, corrosion and miscible pressure, natural gas or associated gas is considered to be the most promising choice. Downhole gas flow measurement is an important technical means to achieve accurate and quantitative stratified gas injection. However, due to the unfixed natural gas components and the complex conditions of underground high temperature and high pressure, the accurate flow measurement and on-site calibration face great challenges. Based on the fluid-solid coupling heat transfer model, this paper conducts simulation research on the natural gas flow measurement of thermal flowmeters under different working conditions, simulates experimental environments under high temperature and pressure. Then the input - output relationship between gas mass flow and temperature difference is established to provide effective guidance for follow-up field experiments and measurements.关键词
油井注气/流固耦合传热/天然气流量测量/天然气物性参数Key words
oil well gas injection/fluid-structure coupling heat transfer/natural gas flow measurement/physical parameter of natural gas分类
天文与地球科学引用本文复制引用
于继飞,杨树坤,幸雪松,邹明华,赵广渊,陈欢,李越,宫汝祥..基于流固耦合传热模型的井下注天然气流量测量仿真研究[J].测井技术,2024,48(3):326-333,8.基金项目
中国海洋石油集团有限公司科研项目"海上油藏气驱提高采收率技术"(KJGG2021-0505) （KJGG2021-0505）
