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Brand Name : Renda
Certification : API
Place of Origin : China
MOQ : 1
Payment Terms : L/C, D/A, D/P, T/T, Western Union
Supply Ability : Based on Detailed Order
Delivery Time : 10-15 working days
Packaging Details : Standard wooden export box
Material : Stainless Steel
Condition : New
Application : Oilfield
Api Srandard Heavy Weight Spiral Drilling String For Oil Field
Description:
This type of drill collar is made of 4145H or 4145H modified alloy steel and has spiral grooves on the pipe body of drill collar. This will decrease the surface area contacted with the hole of the oil well, which will greatly reduces the probability of pressure differential detention occurring.
Specifications:
Grooved Drill Collar
OD Range (in) |
4-4 3/8 |
4 1/2-5 1/8 |
5 1/4-6 3/8 |
6 1/2-7 |
7 1/8-7 7/8 |
8-8 7/8 |
9-9 7/8 |
Depth of cut (in) |
6 2/3 ± 1/32 |
7/32 ± 1/32 |
1/4 ± 1/32 |
5/16 ± 1/16 |
11/32 ± 1/16 |
3/8 ± 1/16 |
13/32 ± 3/32 |
Spiral Pitch (in) |
36 ± 1 |
38 ± 1 |
42 ± 1 |
42 ± 1 |
64 ± 1 |
68 ± 1 |
72 ± 1 |
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Api Srandard Heavy Weight Spiral Drilling String For Oil Field Images |