Research on Formation Prediction Model of Gas Hydrate

Abstract

In the process of gas extraction, gathering and transportation, etc., the formation of hydrates will cause blockage of mining facilities and pipelines and affect normal production, and even there are hidden dangers, causing difficulties in gas development. Therefore, the building of the hydrate prediction model is an urgent problem to be solved in the prevention and control of hydrate; it plays an important role in accurately and efficiently predicting the specific position and time of hydrate formation. In this paper, The formation mechanism and conditions of gas hydrate were described, and the prediction models of hydrate were introduced from two aspects: whether there are inhibitors (alcohols and electrolytes) in the hydrate system, respectively, the VdW-P model, a series of thermodynamic models based on it, and Chen Guo model based on hydrate dynamics were mainly described. Under different application conditions, the appropriate prediction model can effectively predict the formation of hydrate.