Westerman, Hattori, Daniels & Adrian, LLP
Experimental device and method used for polyphase separation of natural gas hydrate drilling fluid
An experimental device of polyphase separation of natural gas hydrate drilling fluid, and method of use thereof, comprising a solid-phase separator, a liquid injection module, a gas injection module and a gas-liquid separator. The solid-phase separator comprises a first filter device and a second filter device, the gas injection module injects gas into the solid-phase separator while the liquid injection module injects liquid into the solid-phase separator, and the gas-liquid separator is communicated with the solid-phase separator through a pressure control valve. In the experimental device and method, the combination of the liquid and the gas injection modules keeps the solid-phase separator in a high-pressure state of the gas-liquid mixture constantly to achieve the polyphase separation of natural gas hydrate drilling fluid under a high pressure, while avoiding the formation of new hydrates during separation; the provision of the dual-filter device in the solid-phase separator aids in preventing equipment blockages.
GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES
E E B E
E21B E21B B01D E21B
inventional inventional inventional inventional
Yi Zhaoyang Xiaosen Gang Yu Ningsheng
Wang Chen Li Li Zhang Huang