... of them depend on the combination of several controllable variables and one combined formation property. Controllable variables are rotary speed, weight on bit, mud weight, pump flow rate, and pump pressure [ 6 ] . The models summarize below. Bingham Model Bingham Model is a simple model which...

... & gas drilling model estimation warren bit selection equation penetration rate constant coefficient rotary speed application rock strength prediction young model rop value penetration neural network machine learning artificial intelligence Introduction Overview In the recent...

... University (SWPU) has developed a new small size bit with high rotary speed, named disc one-cone bit, which combines the advantages of both one-cone bit and disc bit. This new bit will have expansive application prospect in deep drilling, ultradeep drilling and slim-hole drilling because of its less torsion...