div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentsnetreader043viewer20220218025b64518c7f8b9af5448d21f9html5page1jpg target=_blank img data-url=-drill-stem-valves-are-critical-rig-items-and-form-part-of-the-routine-bop-equipmenthtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · Drill stem valves are critical rig items and form part of the routine BOP equipment test cycle Additionally to minimise rig downtime it is recommended that Top Drive loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsnetreader043viewer20220218025b64518c7f8b9af5448d21f9html5thumbnails1jpg width=140 height=200 adivdiv