Specifications
1. Top supplier of API non-magnetic drill collar
2.
non-magnetic or 4145h material
3. realiable quality with good service
1.Product Description of non-magnetic drill collar
Kingwell's non-magnetic drill
collar are manufactured from integral non magnetic alloy steel accroding to API
spec7 and SY/T5144. All thread can be phosphated, copperised or cold worked. All
thread are machined with CNC Lathes-double-shouldered and special
thread.
| Product: | oilfield API non-magnetic drill collar |
| Size: | 3 1/8"-11" |
| Delivery time: | 30 days after receive the deposit. |
| Standard | API Spec 7-1 |
| Payment Term: | 30% advance by T\T; Balance pay against shipping documents or irrevocable LC at sight |
Magnetic Properties
MPS=(1×105/4π)A/m
Average: μr<1.010
Magetic Field Gradient: B≤0.05μT
2.Product Specification:
| OD | ID | Length mm | Bevel Diamater DF mm | Bend strength | ||
| mm | in | mm | in | |||
| 79.4 | 3 1/8 | 31.8 | 1 1/4 | 9150 | 76.2 | 2.57:1 |
| 88.9 | 3 1/2 | 38.1 | 1 1/2 | 9150 | 82.9 | 2.42:1 |
| 104.8 | 4 1/8 | 50.8 | 2 | 9150 / 9450 | 100.4 | 2.43:1 |
| 120.7 | 4 3/4 | 50.8 | 2 | 9150 / 9450 | 114.7 | 2.58:1 |
| 127 | 5 | 57.2 | 2 1/4 | 9150 / 9450 | 121 | 2.38:1 |
| 152.4 | 6 | 57.2 | 2 1/4 | 9150 / 9450 | 144.5 | 2.49:1 |
| 152.4 | 6 | 71.4 | 2 13/16 | 9150 / 9450 | 145.5 | 2.84:1 |
| 158.8 | 6 1/4 | 57.2 | 2 1/4 | 9150 / 9450 | 149.2 | 2.91:1 |
| 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150 / 9450 | 150 | 2.63:1 |
| 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150 / 9450 | 154.8 | 2.76:1 |
| 165.1 | 6 1/2 | 71.4 | 2 13/16 | 9150 / 9450 | 154.8 | 3.05:1 |
| 171.4 | 6 3/4 | 57.2 | 2 1/4 | 9150 / 9450 | 159.5 | 3.18:1 |
| 171.4 | 6 3/4 | 71.4 | 2 13/16 | 9150 / 9450 | 159.5 | 2.37:1 |
| 177.8 | 7 | 57.2 | 2 1/4 | 9150 / 9450 | 164.7 | 2.54:1 |
| 177.8 | 7 | 71.4 | 2 13/16 | 9150 / 9450 | 164.7 | 2.73:1 |
| 184.2 | 7 1/4 | 71.4 | 2 13/16 | 9150 / 9450 | 169.5 | 3.12:1 |
| 196.8 | 7 3/4 | 71.4 | 2 13/16 | 9150 / 9450 | 185.3 | 2.70:1 |
| 203.2 | 8 | 71.4 | 2 13/16 | 9150 / 9450 | 190.1 | 3.02:1 |
| 209.6 | 8 1/4 | 71.4 | 2 13/16 | 9150 / 9450 | 195.7 | 2.93:1 |
| 228.6 | 9 | 71.4 | 2 13/16 | 9150 / 9450 | 212.7 | 3.17:1 |
| 241.3 | 9 1/2 | 76.2 | 3 | 9150 / 9450 | 223.8 | 2.81:1 |
| 247.6 | 9 3/4 | 76.2 | 3 | 9150 / 9450 | 232.6 | 2.57:1 |
| 254 | 10 | 76.2 | 3 | 9150 / 9450 | 237.3 | 2.81:1 |
| 279.4 | 11 | 76.2 | 3 | 9150 / 9450 | 266.7 | 2.84:1 |
3.Spiral grooving:
| Size OD | Depth of Cut | Spirals | Direction | Pitch | Type |
| 3 1/8" - 5" | 7/32 ± 1/32 | 3 | R.H. | 38±1 | A |
| 6" - 6 1/4" | 9/32 ± 1/18 | 3 | R.H. | 42±1 | A |
| 6 1/2" - 6 3/4" | 5/18 ± 1/18 | 3 | R.H. | 46±1 | A |
| 7" | 5/18 ± 1/18 | 3 | R.H. | 64±1 | A |
| 7 1/4" - 7 3/4" | 11/32 ± 1/18 | 3 | R.H. | 64±1 | B |
| 8" - 8 1/4" | 3/8 ± 1/18 | 3 | R.H. | 68±1 | B |
| 9" - 9 3/4" | 13/32 ± 3/32 | 3 | R.H. | 72±1 | B |
| 10" | 7/18 ± 3/32 | 3 | R.H. | 76±1 | B |
| 11" | 15/32 ± 3/32 | 3 | R.H. | 80±1 | B |
4. Elevator and slip recesses:
Elevator and slip recesses can be machined to meet the customer's requirement accronding to API specifications.
5. Packing And Delivery:
| Package | Seaworthy package (or as customer
require) |
| MOQ | 1 Pieces |
| Delivery | 30 days (can
be short if we have stock) |
| Payment | 30%T/T in advanced+70% balanced;irrevocable L/C at sight |
| Remarks | All-risk insurance and accept the third party test |
