div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220307105af95cf27f8b9abd588cc6afhtml5page1jpg target=_blank img data-url=documentuntitled-1-is-necessary-to-prevent-vertical-migration-of-fluids-or-gases-behindhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Untitled-1 · isolation is necessary to prevent vertical migration of fluids or gases behind the casing 4 All hydraulic fracturing fluids are directed into the zones a loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsusreader039viewer20220307105af95cf27f8b9abd588cc6afhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220307105af95cf27f8b9abd588cc6afhtml5page2jpg target=_blank img data-url=documentuntitled-1-is-necessary-to-prevent-vertical-migration-of-fluids-or-gases-behindhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Untitled-1 · isolation is necessary to prevent vertical migration of fluids or gases behind the casing 4 All hydraulic fracturing fluids are directed into the zones a loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsusreader039viewer20220307105af95cf27f8b9abd588cc6afhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220307105af95cf27f8b9abd588cc6afhtml5page3jpg target=_blank img data-url=documentuntitled-1-is-necessary-to-prevent-vertical-migration-of-fluids-or-gases-behindhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Untitled-1 · isolation is necessary to prevent...