“…The first weak point is that there is a high probability of delay in kick detection, and the second point is that it cannot judge the type of kick. Although a lot of effort is being spent on improving these weaknesses, an efficient and effective method has yet to be developed [3].Downhole micro-flux control drilling technology can effectively solve drilling accidents such as kick and loss in narrow density window drilling scenarios. Down-hole monitoring techniques have a potential to detect a kick at its early stage, so it is important to study downhole annular flow measurement technology.…”