API SPEC 7-1:2023+ERR 2:2025
Current
Rotary Drill Stem Elements
English
10-01-2025
This standard specifies the technical delivery conditions for rotary drill stem elements: upper and lower kelly
valves, square and hexagonal kellys, drill stem subs, drill collars (steel and non-magnetic, round, and spiral), heavy-weight drill pipe (HWDP), drilling and coring bit connections, and stabilizers.
| DocumentType |
Standard
|
| Pages |
127
|
| PublisherName |
American Petroleum Institute
|
| Status |
Current
|
| Supersedes |
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