Coverage. This specification covers dimensional requirements on drill-stem members (except drill pipe)@ including threaded connections@ gaging practice@ and master gages therefor. It also covers dimensional requirements on small diameter work strings@ rotary tables@ shafting@ slush pump components@ rotary hose@ and brake blocks. Also included@ as appendices@ are recommended practices on (1) care and use of regional master@ reference master@ and working gages@ (2) slush pump maintenance@ (3) rotary hose@ and (4) lubrication of rotary shouldered connections.
SPEC 7-1990由API - American Petroleum Institute 发布于 1990-08-01,并于 2015-02-06 实施。
* 在 SPEC 7-1990 发布之后有更新,请注意新发布标准的变化。
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