Testing device and method for measuring adhesion force between gas hydrate and mineral particles
A testing device for testing adhesion force includes a thermal insulated glove box, an atomic force microscope, a cryogenic sample stage, a high pressure gas source and a circulating chiller. The atomic force microscope includes a probe for adhering mineral particles. The cryogenic sample stage is configured for preparing gas hydrate sample. The cryogenic sample stage is arranged below the probe. The atomic force microscope and the cryogenic sample stage are placed in the thermal insulated glove box. The high pressure gas source provides pressure required for synthesis of gas hydrates, the high pressure gas source comprises a high pressure chamber covered on the cryogenic sample stage and a high pressure gas cylinder connected with the high pressure chamber. The circulating chiller, an outlet of the circulating chiller is connected with the thermal insulated glove box to control humidity and temperature inside the thermal insulated glove box.
China University of Geosciences (Wuhan)
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E21B G01Q E21B G01Q G01Q G01Q G01Q
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Fulong Guosheng Wei Dongdong Zhichao Li Jiaxin Wenjia Wan Ling
Ning Jiang Li Wang Liu Peng Sun Ou Cheng Zhang