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

IADC

适用地层（formation）

   钻压

KN/mm

转速

r/min

114. 115.116.117

低抗压强度高可钻性的及软地层，如粘土.泥岩.疏松砂岩.

The 114-117 bits are used to drill low-compressive strength,soft formations. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear.On the softest bi types this hard facing completely covers the bit teeth

0.35---0.8

150---80

124.125.126.127

低抗压强度高可钻性的及软地层，如泥岩.石膏.盐岩.软页岩.软石灰岩

Soft formation with low compressive strength and high drillability. Such as sandstone, anhydrite, salt, shale, limestone.

0.3---0.9

180---80

134.135.136.137

低抗压强度高可钻性的及软至中软地层，如中软页岩.硬石膏.中软石灰岩.中软砂岩和有硬夹层的软地层

Soft to medium formations with low compressive strength, such as shale, anhydrite, sand and so on for soft formation

0.33--1.0

130----60

216.217

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.和有硬夹层的软地层

Soft to medium formations with low compressive strength, such as shale, anhydrite, sand and so on for soft formation

0.4---1.0

100---60