珠江口盆地二氧化碳地质封存条件及源汇匹配性分析

Assessment on geological condition for carbon dioxide sequestration and source-sink matching in the Pearl River Mouth Basin

  • 摘要: 当今全球气候突变,极端天气频发,温室气体过量排放造成的温室效应是其形成原因之一。我国正值经济转型,又受限于能源结构,继续大量使用化石能源是不可避免的。通过收集有关珠江口盆地的公开地质资料,与前人所提出的E级和D级碳封存适宜性评价指标对比,得知珠江口盆地具有巨大的碳封存潜力和较高的适宜性。分析了粤港澳琼四地区碳排放情况及变化趋势,认为四地区碳排放源与珠江口盆地碳封存区构成良好的源汇匹配关系,在珠江口盆地实施碳封存,不仅可以使四地区达成碳中和,而且可以使盆地内油气田开发最大效益化。因此,对珠江口盆地碳封存地质条件及源汇匹配性的研究具有重要意义。

     

    Abstract: Abrupt global climate change and extreme weather occur frequently in recent decades, for which the greenhouse effect caused by excessive greenhouse gas emission shall be one of the responsible reasons. China is in the midst of economic transformation but is constrained by the energy structure, thus continuous use of fossil energy in large quantities is inevitable in the foreseeable future. Available geological data about the Pearl River Mouth Basin were collected and the evaluation indicators of carbon sequestration suitability in the E and D levels proposed by previous researchers were compared. Results show that the Pearl River Mouth Basin has a huge carbon sequestration potential and high suitability. Moreover, the carbon emission status quo and variation trend in Guangdong, Hong Kong, Macao, and Hainan were analyzed, by which we believed that the carbon emission sources in the four regions formed a good source-sink matching relationship with the carbon sequestration area in the Pearl River Mouth Basin. The implementation of carbon sequestration in the Pearl River Mouth Basin can not only achieve carbon neutrality in the four regions, but also maximize the benefits of oil and gas field development of the basin. Therefore, it is of great significance to study the geological conditions and source-sink matching of carbon sequestration in the Pearl River Mouth Basin.

     

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