Device for monitoring physical property change of hydrate reservoir in deep water drilling fluid invasion process
A drilling fluid invasion, deep water drilling technology, applied in soil material testing, material inspection products, etc., can solve the problems of immature heat and mass transfer, almost blank, etc., to avoid mutual influence and improve data accuracy and reliability. Effect
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[0021] like figure 1 As shown in the figure, the device for monitoring the physical property change of hydrate reservoir during the invasion of deepwater drilling fluid includes: a wellbore-hydrate reservoir coupled heat and mass transfer unit and a drilling fluid circulation unit; a wellbore-hydrate reservoir coupled heat and mass transfer unit The reservoir structure is simulated by the method of sand filling and compaction, which provides a reaction place for the formation of hydrate in porous media and the decomposition and regeneration of hydrate under the condition of drilling fluid invasion. Various monitoring methods including ultrasonic monitoring, TDR monitoring and nuclear magnetic resonance tracking isotope can record the changes of physical parameters at different positions in the reservoir in real time; the drilling fluid circulation unit is used to simulate the drilling fluid circulation of different drilling parameters, and use the before and after circulation ...
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