国内外石油公司甲烷排放差异性分析及启示

Methane Emission Control Analysis of Domestic and Foreign Petroleum Companies

甲烷排放管控是国际石油公司推动低碳能源转型的一项重要举措,也是达成净零碳排放愿景的一个重要手段。研究发现,国内外石油公司的油气生产活动水平、甲烷排放控制水平、甲烷排放核算方法等3个方面均存在较大差异性。我国油井单井产量低,地面工程量大、工艺复杂,流程工艺中甲烷排放突出,油气系统甲烷排放水平较高,油气生产甲烷排放控制水平与国外石油公司相比尚有较大差距,与国外甲烷排放核算方法也存在较大差异性。着眼于甲烷排放管控,我国石油公司应充分衡量甲烷排放现状、生产活动水平、甲烷排放控制措施经济性和适用性等多重因素,严格控制潜在甲烷排放节点,并进一步做好甲烷排放检测、监测和数据统计工作,持续完善甲烷排放报告和核查体系。

Methane emission control is an important action for international oil companies to promote the transition to low carbon energy and an important method to achieve the vision of net-zero carbon emissions.Based on current studies,great differences are existing in oil and gas production,methane emission control and methane emission accounting methods between domestic and foreign oil companies.Compared to foreign oil companies,domestic oil companies have several special conditions:low single well production rate,large ground engineering,complex production process,high process methane emissions,high methane emissions in oil and gas production,lag in methane emission control level.To achieve methane emission control,Chinese oil companies should focus on the control of potential methane emission sources;the detection,monitoring and counting of methane emissions;and the improvement of methane emissions reporting and verification system.Meanwhile,all these efforts should base on current methane emission level,production situation,economy and applicability of methane emission control methods.