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Api spec 7- 1, 2nd edition, february - rotary drill stem elements 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. A typical drill- stem assembly is shown in figure 1. Consult manufacturer for recommended make- up torques and combined load rating of end connections and any service connections supplied. Addenda and errata may not be included in translated editions of this standard. Drill- setem subs, drill collars, drillng and coring bits.
This edition of api spec 7- 1 is the modified national adoption of iso, petroleum and natural gas industries- rotary drilling equipment- part 1: rotary drill stem ld working of threads is optional. Ansi/ api specification 7- 1 first edition, march effective date: september 204- 1: ( modified), petroleum and natural gas industries— rotary drilling equipment— part 1: rotary drill stem elements addendum 1 to specification for rotary drill stem elements add the following new clause 10. 3 for further details. Ansi/ api specification 7- 2 ( formerly in spec 7) first edition, june effective date: decem contains api monogram annex as part of us national adoption iso: ( identical), petroleum and natural gas industries— rotary drilling equipment— part 2: threading and gauging of rotary shouldered thread connection. Description api spec 7- 1 ( r) – specification for rotary drill stem elements, first edition — identical to iso:, includes addendum, addendum, addendum, addendum, and errataplease note. But purchaser should consider specifying cold working of threads after thread gauging. Api spec 7 specification for rotary drill stem elements inactive buy now details history references scope: coverage this specification covers requirements on drill- stem members ( except drill pipe), including threaded connections, gauging practice, and master gauges therefor. Rotary shouldered connections and gauging for drill stem elements are covered in api spec 7- 2.
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