Comments on: Permanent production packer pushes limits of ultra-HPHT wells /permanent-production-packer-pushes-limits-of-ultra-hpht-wells-23556 Get the latest oil drilling news with Èý•NÌåÓý Tue, 28 May 2013 21:13:11 +0000 hourly 1 https://wordpress.org/?v=6.1.1