Analysis and Countermeasures of PDC Bit Mud Packing and Sticking
By analyzing the corresponding characteristics after mud packing,various factors leading to mud packing of the drill bit,and the causes of sticking after packing of the drill bit,it is proposed that to prevent mud sticking of the drill bit,it is necessary to establish an overall solution strategy from preventing mud packing the drill bit,identifying and monitoring mud packing of the drill bit,to timely dealing with mud packing of the drill bit,and excluding complex mud packing of the bit.At the same time,it is clarified that the existence of suction shrinkage is the main cause of"shrinkage sticking"after mud packing of drill bit.In this regard,the feasibility of using pressure soaking method to relieve mud sticking of the drill bit is proposed.
万方数据
维普
