Usage: | Well Drilling, Oil Well Drilling |
---|---|
Certification: | API |
Use: | Water Well Drilling, Oil Well Drilling |
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No.
|
formation
|
IADC code
|
Lithology
|
Appropriate PDC bit type
|
1
|
Very soft
|
M123
|
Clay Mudstone Marlite |
RM1944R,RM1952R
|
2
|
soft
|
M223
|
Marlite Saline rock Shale |
Rm1952R RM1952GR/AR/AGR RM1652AR/AR/aGR |
3
|
Medium soft
|
M323 M324 |
Shale Sandstone Chalk |
RM1652DR RM1662RM1953DGR |
4
|
Medium
|
M423 M433 |
Sandstone Limestone Shale |
RM1665GR RM1665ADR RM1362 RM1365D Rm1375D |