DEVELOPMENT OF BHA WITH DYNAMIC ACTIVE ELEMENT TO INCREASE WELL DRILLING EFFICIENCY WITH PDC DRILL BITS
As is proved by numerous studies and by drilling experience the higher drilling indices may be achieved through imposing the dynamic loads upon rock-cutting tools while preserving its constant contact with BH. The author has designed the scheme of dynamic bottom-hole assembly (BHA) that enable combining drill bit load with dynamic impulse. For the dynamically active section of BHA they use the near-bit oscillating baffle designed at the Chair of «Drilling Oil and Gas Wells» at Almetyevsk State Petroleum Institute.