Xuanhua Jinke Drilling Machinery Co.,Ltd.
Xuanhua Jinke Drilling Machinery Co.,Ltd. Jinke provide users high quality drilling solutions,we always focus on the strategic conception of “Survival by quality, Development by credit’’.
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Cutting Structure
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
Gauge Structure
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure
High precision roller bearing with two thrust faces. Ball lock the cone.Thrust faces hardface with wear resistant alloy. Abrasion resistance and seizure resistance of the bearing are improved.
Seal and Lubrication
Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
Product Application
It is suitable for various formations, and achieves high RPM under low to medium WOB application
Recommended Drilling Parameter
|
IADC |
WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
|
114/116/117 |
0.3~0.75 |
180~60 |
Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
|
124/126/127 |
0.3~0.85 |
180~60 |
Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
|
134/135/136/137 |
0.3~0.95 |
150~60 |
Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
|
214/215/216/217 |
0.35~0.95 |
150~60 |
Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
|
227 |
0.35~0.95 |
150~50 |
Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
|
Note: The upper limits of WOB and RPM in above table should not be used simultaneously. |
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