Abstract:During the process of natural gas exploitation and gathering, the equipment and pipe blockage brought about by the formation of gas hydrate has threatened oil gas industry for a long time. A hydrate inhibitor of low dosage and high efficiency is needed to prevent gas hydrate from forming. Therefore, we have developed a novel dynamic hydrate inhibitor BVP of which performance has been evaluated with [THF] by an equipment which is designed by ourselves. The experimental results are: when BVP dosage was 0.5% ~ 0.75%,the freezing temperature of hydrate was -8℃, and the undercooling was -10℃; compared with a commercial gas hydrate inhibitor PVP, the performance of BVP has shown much better performance than that of the former, that is , the cloud point of BVP is 27.2℃ which is higher than that of PVP, under the condition of the same dosage, and the undercooling of BVP is 2 ~ 3℃ lower than that of PVP; the optimal combination scheme is, 5% ~ 10% (NaCl) 0.5%BVP, the undercooling of this combination solution could be -12℃ ~ -16℃.