ABOUT THE CHOICE OF RATIONAL TYPES OF DRILL BITS
Sergey L. Simonyants — Dr.Sci.Tech. The Professor,
Murad S. Salikhov – postgraduate student, the Gubkin University of Oil and Gas, email@example.com
Keywords: drill bits; Tricone bits; Diamond bits; Impreg bits; PDC bits; hardness and abrasiveness of rocks; depth and a drilling interval; the technical and economic analysis.
Now at drilling of oil and gas wells drill bits of two principal types are used: Tricone bits and Diamond bits. The type of arms of bits gets out according to mechanical properties of rocks: hardness and abrasiveness. The important factors at a bits choice are depth and length of an interval of drilling. After a chisel of suitable type Tricone bits it is necessary to prove expediency of application of an alternative kind of a bits — diamond, impreg or PDC. The conclusion about expediency of application these bits should be based on results of the comparative technical and economic analysis.