The coring tools are used for acquisition of the rock core in petroleum drilling. From one to three inner barrels and outer barrels can be connected as an integral tool in core drilling. It can be applied in soft , moderate and rigid rock formations. The series of tools manufactured are as followed: Qing 84—I type , American 250P series. Chuan 8 –4type, Chuan8—3 type , Chuan 7—4 type.
Technical specifications and parameters
|
Series |
Type |
Outer barrel size(mm) |
Inner barrel size (mm) |
Section Length
(mm) |
O.D of
Core
(mm) |
ID.
(mm) |
|
OD × ID ×Wall Thickness |
OD × ID ×Wall Thickness | |||||
|
Qing84-I |
84--I |
φ180 ×φ144×18 |
φ127×φ108×9.5 |
9000 |
101.6 |
203~245 |
|
250P(USA) |
63/4 ×4″ |
φ172 ×φ136×18 |
φ121 ×φ105×8.0 |
9000 |
101.6 |
190~216 |
|
川Chuan8-4 |
CQ ×84 |
φ180 ×φ136×18 |
φ127 ×φ112×7. 5 |
9000 |
105 |
203~245 |
|
CQ×8105 |
φ180 ×φ144×18 |
φ127 ×φ112×7. 5 |
9000 |
105 |
203~245 | |
|
Chuan 8-3 |
CQ×83 |
φ180 ×φ144×18 |
φ127 ×φ112×7. 5 |
9000 |
105 |
203~245 |
|
Chuan 7-4 |
CQ172 |
φ172 ×φ136×18 |
φ121 ×φ105×8.0 |
9000 |
101.6 |
190~216 |