div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader040vdocumentsnetreader040viewer20220225145af5b0a77f8b9a8d1c8deff3html5page1jpg target=_blank img data-url=pf4-trifold-final-petroskills-john-m-darcys-equation-for-radial-flow-throughhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: PF4 trifold FINAL - PetroSkills John M Campbell€” DarcyS equation for radial flow through porous media — Effect of facilities-imposed back pressure on well productionrates loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader040vdocumentsnetreader040viewer20220225145af5b0a77f8b9a8d1c8deff3html5thumbnails1jpg width=140 height=200 adivdiv