中海油面向长江以北地区天然气产供储销新体系构建

Construction of CNOOC's new natural gas production-supply-storage-marketing system in the region north of the Yangtze River

中国海洋石油集团有限公司(以下简称中海油)在长江以北地区的天然气产供储销体系建设尚处于起步阶段。为了加快进度,根据国家天然气产供储销体系建设的思路,基于中海油在该区产供储销体系的现状,构建了具有中海油特色的天然气产供储销体系。该体系具有以下特点:①布局框架由7大具有中海油典型特色的支柱支撑,体系量化分析结构由12项要素组成,可以系统化地评估企业建设天然气产供储销体系中的总体适应性,逐一有效地识别具体设施的冗余程度或“瓶颈”所在;②以有限度的预期市场目标为导向,以储气设施建设为突破点,以区域“自平衡”为体系核心,以具有一定富裕量的“资源—设施—市场”平衡为建设原则。结论认为:①在长江以北地区,通过“海气+LNG”资源统一协同和“四点、N站、一网”的天然气基础设施布局,可以形成较大规模和互相支撑的天然气年周转、气化外输、储气和调峰能力;②依托于“资源池”的统筹调配和LNG接收站的小时级调峰能力,可以为高波动的用气需求量提供高弹性的供气保障;③在长江以南沿海地区产供储销体系的富裕能力能够直达或商业互换至长江以北地区,依托海上LNG资源的灵活调度和陆上外输管道气的流向调配,可以在更大范围内为长江以北地区天然气产供储销体系建设提供支撑和互济保障。

China National Offshore Oil Co.,Ltd.(CNOOC)'s natural gas production-supply-storage-marketing system in the region north of the Yangtze River is in its initial stage of construction.In order to speed up its construction,CNOOC established a natural gas production-supply-storage-marketing system with CNOOC's characteristics based on the current situation of CNOOC's production-supply-storage-marketing system in this region according to national construction ideas of production-supply-storage-marketing system.This system has the following characteristics.First,the layout framework is supported by seven pillars with CNOOC's typical characteristics,and the quantitative analysis structure is composed of 14 elements,which can systematically evaluate enterprises'overall adaptability to construct the natural gas production-supply-storage-marketing system and effectively identify redundancy degree or"bottleneck"of specific facilities one by one.Second,this system takes the limited expected market target as the orientation,the construction of gas storage facilities as the breakthrough point,the regional"self-balance"as the core of the system,and the"resource-facility-market"balance with a certain amount of margin as the construction principle.And the following conclusions were obtained.First,large-scale mutually supporting annual natural gas turn over,vaporization transportation,gas storage and peak shaving capacity can be built in the region north of the Yangtze River through unified coordination of"offshore gas+LNG"resources and the natural gas infrastructure layout of"four points,N stations,one network".Second,based on the integrated allocation of"resource pool"and the hour-level peak shaving capacity of LNG receiving terminals,the large-fluctuation gas demand can be guaranteed with high-elasticity gas supply.Third,the surplus capacity of the production-supply-storage-marketing system in the coastal areas south of the Yangtze River can reach directly or commercially exchanged to the areas north of the Yangtze River.And the flexible distribution of offshore LNG resources and the allocation of onshore transported pipeline gas in the transportation direction provide support and mutual guarantee in a larger range for the construction of the production-supply-storage-marketing system in the region north of the Yangtze River.