Well drilling liquid injection intelligent adjusting method, device and system

The invention relates to the technical field of oil and gas exploitation, in particular to a well drilling liquid injection intelligent adjusting method, device and system. Based on the formation pressure, the liquid injection pressure is determined, and the liquid injection pressure comprises formation manifold pressure consumables, drill column friction pressure drop, drill bit pressure drop and annulus pressure loss; based on the liquid injection pressure, the drilling fluid density, the drilling fluid displacement and the drilling fluid flow speed are determined, the drilling fluid injection intelligent adjusting system is controlled, intelligent adjustment is carried out according to the actual condition of the stratum, and therefore the drilling efficiency is improved, the drilling risk is reduced, and reliable technical support is provided for oil and gas exploration and development. 本发明涉及本发明涉及油气开采技术领域，尤其涉及一种钻井注液智能调节方法、装置及系统，该方法包括：实时采集地层压力；基于地层压力，确定注液压力，注液压力包括地层管汇压耗材、钻柱摩擦压降、钻头压降以及环空压耗；基于注液压力，确定钻井液密度、钻井