|
IADC |
适用地层(formation) |
钻压
KN/mm |
转速
r/min |
|
417.437.447 |
高抗压强度低研磨性的中到硬地层，如页岩，灰岩，泥岩，砂岩
Medium to hard formations with high compressive strength and low abrassiveness. Such as shale, limeston, mudstone, sandstone |
0.35---0.9 |
150--70 |
|
517.527 |
高抗压强度的软地层，如泥岩.石膏.盐岩.软页岩.软石灰岩.砂岩
Medium to hard formations with high compressive strength and low abrassiveness. Such as shale, limeston, mudstone, sandstone |
0.35---1.0 |
140--60 |
|
537.547 |
低抗压强度的软到中等地层，如中软页岩.中软石灰岩.中软砂岩.和软硬研磨性夹层的中等地层
Medium to hard formations with high compressive strength and low abrassiveness. Such as shale, limeston, mudstone, sandstone |
0.45---1.0 |
120---50 |
|
617.627.637 |
高抗压强度的中硬地层，如硬页岩.石灰岩.砂岩.白云岩.和硬石膏.大理石
Hard and dense non-abrasive formations with high compressive strength, such as shale, limestone,dolomite, anhdrite,siltstone, sandstone,mudstone and so on. |
0.5--1.15 |
90---50 |
|
737.837 |
高抗压强度的硬地层，如硬石灰岩.燧岩.硬砂岩.石英岩.石英砂.玄武岩.花岗岩等极硬岩层
Ultra hard and abrasive formations, such as quartzite, igneous rock and so on |
0.65--1.15 |
60---33 |
