Wellbore temperature profiling for deepwater multi-gradient drilling
In order to study the distribution law of temperature in deep water CML dual-gradient drilling wellbore, the coupling relationship between wellbore temperature, pressure, drilling fluid density and rheological properties was comprehensively considered, and the transient heat transfer model of deep water CML dual-gradient drilling wellbore was established in combination with the characteristics of deep-water CML dual-gradient drilling process and the law of energy conservation. Based on an example well, the effects of cycle time and drilling fluid physical parameters on annulus temperature w
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