FOB Price
Get Latest Price|
1 Minimum Order
Country:
China
Model No:
-
FOB Price:
Place of Origin:
-
Price for Minimum Order:
-
Minimum Order Quantity:
1
Packaging Detail:
steel frame
Delivery Time:
average 35 days
Supplying Ability:
1000 Unit per Month
Payment Type:
T/T, L/C
Product Group :
China
Contact Person Adam
Shanghai, Shanghai
Spiral Grooving
Spiral Grooving In order to avoid differential pressure sticking in the hole.
Note 1-Loss of weight is approximatively 4%, compared to slick drill collars.
Note 2-Length of spiraled section allows reconditionning of connections.
Stress Relief Groove & Bore Back Box
Stress relief grooves improve bending strength of pin and box connections and, therefore, durability. Stress relief grooves for box and pin are defined by API.
Bore back box is nothing but gradual reduction of internal diameter by gradually increasing material cross sectional area at critical section. This will ultimately reduce drastically stress concentration during Static / Dynamic loading and prevents box connections from failure.
Recommended Hardbanding Location
-Drill collars with slip and elevator recesses (ZIP)
4long wear pad above elevator recess
1long wear pad above slip recess.
10long wear pad under slip recess
-Drill collars with slip recess:
10long wear pad under slip recess,
4long wear pad above slip recess.
-Drill collars without slip and elevator recesses:
10long wear pad at 30from pin shoulder.
Hardbanding
We provide several hardbanding materials for Customers choice: Arnco-100XT, Arnco-300XT, TCS-8000;
Slip and Elevator Recess
Slip and elevator recesses improve downhole handling efficiency and safety. Slip and elevator recesses are machined in accordance with API 7-1.
Country: | China |
Model No: | - |
FOB Price: | Get Latest Price |
Place of Origin: | - |
Price for Minimum Order: | - |
Minimum Order Quantity: | 1 |
Packaging Detail: | steel frame |
Delivery Time: | average 35 days |
Supplying Ability: | 1000 Unit per Month |
Payment Type: | T/T, L/C |
Product Group : | Drill collars |