CCDC Geological Exploration and Development Research Institute, Chengdu, China.
Sichuan Hengyi Petroleum Technology Service Co. Ltd., Chengdu, China.
PLoS One. 2024 Jul 18;19(7):e0307109. doi: 10.1371/journal.pone.0307109. eCollection 2024.
The prevention and control of natural gas hydrates is an important link in ensuring winter production. Traditional thermodynamic inhibitors, like methanol, are commonly utilized due to their low unit costs and pricing, but they come with considerable safety issues when used on-site due to their high toxicity, flammability, and explosive potential. A cost-effective and eco-friendly hydrate inhibitor was created by combining light polyol amine with other ingredients to solve this problem. At a concentration of 30%, the product has a flash point greater than 80°C and a solidification point of -45°C. With success rates of 99% and 100%, respectively, it was used for winter casing pre-injection anti-freezing operations and balancing tank defoamer anti-freezing operations. Experiments have demonstrated the effectiveness of this inhibitor in preventing the formation of natural gas hydrates. In wintertime on-site anti-freezing activities, the projected cost can be substituted for methanol, as it is essentially equivalent to methanol.
天然气水合物的防治是确保冬季生产的重要环节。传统的热力学抑制剂，如甲醇，由于其低廉的单位成本和价格，被广泛使用，但由于其高毒性、易燃性和爆炸潜力，在现场使用时存在相当大的安全问题。为了解决这个问题，我们将轻聚醇胺与其他成分结合，开发出了一种经济高效且环保的水合物抑制剂。该产品在浓度为 30%时，闪点大于 80°C，凝固点为-45°C。其冬季套管预注防冻作业和平衡罐消泡剂防冻作业的成功率分别达到了 99%和 100%。实验证明了该抑制剂在防止天然气水合物形成方面的有效性。在冬季现场防冻活动中，预计可以用该抑制剂替代甲醇，因为它在本质上与甲醇等效，可以节省成本。
