Development and application of solid fluidization simulation experimental device for Non-diagenetic Gas Hydrate
YANG Pu1，WANG Guorong1，ZHOU Shouwei2，3，LI Qingping4，ZHONG Lin1，FU Qiang4，WAGN Leizhen1，ZHANG Jichun1
(1. College of Mechatronic Engineering，Southwest Petroleum University，Chengdu，Sichuan 610500，China；2. China National Offshore Oil Corporation，Beijing 100010，China；3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu，Sichuan 610500，China；4. CNOOC Research Institute，Beijing 100027，China)
Abstract：In order to research the scientific problems involved in fluidization mining of solid fluidization method，such as the crushing effect of multi-nozzle combination，the forming rule of the cavity，the particle size distribution，the flow field characteristics in the cavity and the solid phase transport characteristics，a new large-scale laboratory simulation experiment device of soled fluidization is developed independently，which mainly includes five parts：pressure water generation and control equipment，process simulation device，suction and lift simulation equipment，data acquisition and control system and auxiliary equipment. The jet mining characteristic is that it does not destroy the phase equilibrium of hydrate. The experiment device simplifies the experimental conditions by ignoring the phase factors and find a hydrate replacement sample based on the principle of similar materials，so as to directly simulate the large-scale crushing process of minerals under the multi-nozzle radial jet and the effective recovery process of mineral particles in the solid-state fluidization process. The original scale simulation of the jet mining process in the production test in South China Sea was carried out by using the experimental device. The critical velocity of the gas hydrate，diameter of gob areas and the solid fluidization effect were explored. The experimental device provides the first set of experimental platform for the development of the special solid fluidization equipment and the optimization of the jet mining process. These have practical meaning for engineering implementation of solid fluidization.
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2019, Vol. 38 
