Experimental formation of massive hydrate deposits from accumulation of CH4 gas bubbles within synthetic and natural sediments

摘要: In order for methane to be economically produced from the seafloor, prediction and detection of massive hydrate deposits will necessary. many cases, samples recovered seafloor sediments appear as veins or nodules, suggesting that there are strong geologic controls on where is likely accumulate. Experiments have been conducted examining accumulation gas bubbles within natural synthetic in a large volume pressure vessel through temperature data, well visual observations. Observations growth suggest void spaces at sediment interfaces results formation deposits. Methane was first observed thin film forming gas/water interface trapped spaces. As accumulated, occurred. These experiments systems containing free gas, bubble pathways points control location habit