The performance of a bit may be judged on the following criteria: Cost Per Feet Since the aim of bit selection is to achieve the lowest cost per foot of hole drilled the best method of assessing the bits’ performance is the last of the above. This method is applied by calculating the cost per …
The following guidelines are produced to highlight the major considerations when running a PDC bit to achieve optimum performance. Junk in Hole Fully evaluate the previous bit for gauge deterioration. Use of mud screens Tripping Procedures Initial Drilling Procedures
PDC Drill bits have been used extensively and successfully over various formation types. The lack of rotating parts leads to greater life expectancy, as long bit runs are achievable with resultant time and cost savings (check also drilling cost per foot). Due to its increased cost, drilling engineers shall thoroughly review the economics of running …
PDC BIT Cutter Material The material used to manufacture the cutters surface on Polycrystalline Diamond Compact – PDC bits is called Polycrystalline Diamond – PCD. This synthetic material is 90-95% pure diamond and is manufactured into compacts set into the body of the drilling bit. Hence the name of these bits. The high friction temperatures …
The PDC bit body may be