Diamond drill bit
Chois Dong
www.boreway.com
2015-10-04 11:30:34
Diamond drillThe quality of the drill type and lithology whether adaptation, to accelerate drilling speed and improve single drill footage plays an important role. Drilling a gas well generally use different sizes of more than just drill, drill is in the upper stratum to use larger diameter drill, drill drilling because of the formation is relatively soft, single drill footage and more use of time is short, a bit general can be reused several wells; in the lower part of the formation to be drilled with smaller diameter drill bit, because the formation of hard, single little bit of footage, generally use more than just drill. A downhole drilling footage of the number of new drill with drill bit depends on the size, type, formation of hard and soft and drilling parameters. In general, the larger the bit size, the harder formations, the less footage; smaller bit size, the softer the ground, drill footage more.
