能量计价对天然气管网售气收益的影响分析

doi:10.11885/j.issn.1674-5086.2021.09.23.02

摘要/Abstract

摘要： 天然气在中国一次能源中所占的比重不断增加，其价值主要体现在燃烧时产生的热量。中国现在仍以天然气体积计价为主，不利于国内天然气市场发展和与国际市场接轨，实行能量计价更能体现天然气的价值所在。研究多种能量计价方式，并基于SPS进行组分跟踪分析。以川气东送管道为例，计算了由体积计价方式改为能量计价方式后的企业售气收益，分析了不同能量计价方式对企业售气收益的影响，确定对企业售气收益有利的能量计价方式，即选取36.84 MJ/m³作为全国性基准热值；研究了多气源不同供气方案对售气收益的影响，确定售气收益最大化的供气方案：提高元坝气田日供气量，以涪陵页岩气为主要供气源，普光气田气为辅；并进行了基准热值的选择对售气收益的敏感性分析，明确基准热值对售气收益的影响，并确定了在计价方式改革后对售气收益影响最小的基准热值为36.52 MJ/m³。

关键词: 天然气, 能量计价, 气价转换, SPS仿真, 组分跟踪, 售气收益

Abstract: The proportion of natural gas in China's primary energy is increasing, and its value is mainly reflected in the heat generated during combustion. China still focuses on the volume measurement and pricing of natural gas, which is not conducive to the development of the domestic natural gas market and the integration with the international market. The implementation of energy measurement and pricing can better reflect the value of natural gas. This paper studies a variety of energy pricing methods, and carries out component tracking analysis based on SPS software. Taking the Sichuan-East gas transmission pipeline as an example, we calculate gas revenue of enterprises after the volume measurement method is changed to energy measurement method, analyze the influence of different energy measurement method on the gas revenue of enterprises, and determine the favorable energy measurement method, that is, 36.84 MJ/m³ is selected as the national reference calorific value. After studying the influence of different gas supply schemes from multiple gas sources on gas revenue, we suggest the gas supply scheme to maximize gas revenue: increasing daily gas supply of Yuanba Gas Field, taking Fuling Shale Gas as the main gas source, and Puguang Gas Field as the auxiliary gas source. The sensitivity analysis of the selection of the base calorific value to the gas revenue was carried out to clarify the influence of the base calorific value on the gas revenue, and the minimum influence of the base calorific value on the gas revenue was determined to be 36.52 MJ/m³ after the reform of pricing method.

Key words: natural gas, energy pricing, gas price conversion, SPS simulation, component tracking, revenue from gas sales

中图分类号:

TE832

陈飞. 能量计价对天然气管网售气收益的影响分析[J]. 西南石油大学学报(自然科学版), 2024, 46(1): 156-169.

CHEN Fei. An Analysis of the Impact of Energy Pricing on the Revenue of Natural Gas Network[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(1): 156-169.

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