Sun Baojiang, Zhang Mengjun, Sun Qian, Zhong Jie, Shao Guanghao
State Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao, China.
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China.
Nat Commun. 2025 Jan 3;16(1):369. doi: 10.1038/s41467-024-55773-y.
Hydrogen is a promising clean energy source with geological reserves widely distributed globally, offering an annual flow exceeding 23 trillion grams. However, natural hydrogen extraction wells face unique safety challenges compared to conventional oil and gas wells. This paper reviews well safety concerns such as tubing/casing damage, cement/sealant failure, and excessive annular pressure buildup. Key issues include hydrogen embrittlement, microbiological corrosion, H-cement reaction, and H-rubber degradation, which can lead to mechanical failures. The review explores potential solutions like metal coatings, rubber fillers, and cement additives to mitigate these problems. It also emphasizes the need for further research to validate these solutions under real-world conditions. Addressing these challenges is crucial for the safe and efficient extraction of natural hydrogen.
氢气是一种很有前景的清洁能源，其地质储量在全球分布广泛，年流量超过23万亿克。然而，与传统油气井相比，天然氢气开采井面临着独特的安全挑战。本文综述了油管/套管损坏、水泥/密封剂失效和环空压力过度积聚等井安全问题。关键问题包括氢脆、微生物腐蚀、H-水泥反应和H-橡胶降解，这些都可能导致机械故障。该综述探讨了金属涂层、橡胶填料和水泥添加剂等潜在解决方案，以减轻这些问题。它还强调需要进一步研究，以在实际条件下验证这些解决方案。应对这些挑战对于安全、高效地开采天然氢气至关重要。
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