湿气流量计现场使用技术难点分析

Technical difficulty analysis of field application of wet gas flow meters in the gas

湿气广泛地存在于石油天然气工业中,湿气的在线测量对于降低油气田的投资和运行成本,提高油气田的生产效率和科学管理水平都具有重要意义。近十年来,湿气在线测量技术得到了较大的发展,出现了多种不同测量原理的湿气流量计。简述了目前中国石油湿天然气的计量现状和技术需求,分析了现有湿气流量计的测量原理,并对当前湿气流量计的实验室测试结果和现场应用情况进行了详细分析,初步总结了湿气流量计现场使用的技术难点。建议进一步开展湿气流量计测试研究和现场应用试验,总结湿气流量计所能适应的工况范围以及其长期使用的适用性,建立湿气流量计的测试方法和准入标准,规范湿气流量计的使用和维护。

Wet gas wildly exists in natural gas industry.The online metering of wet gas flow is of great significance to reduce the investment and operation cost of oil and gas field,and improve the production efficiency and the level of scientific management.In the last decade,the wet gas online metering technologies have advanced considerably,and many wet gas flow meters with diverse metering principles have appeared.This paper briefly introduces the current situation and technical needs of wet gas measurement in PetroChina,and analyzes the metering principles of current wet gas flow meters.The laboratory test results and filed application of wet gas flow meters are analyzed in detail,and the technical difficulties in the field application of wet gas flow meters are summarized.In order to improve the popularization and application of wet gas flow meters,it is recommended that the further wet gas flow meter testing and field application to be conducted to study the operating range of wet gas flow meters and its adaptability for long-term use,to establish the standard test method and access criteria to regulate the use and maintenance of wet gas flow meter.