Corrosion barrier ring aids oil country tubularsDL-Ring, a patent-pending connection technology, permits the lining system to accommodate any tubing and casing proprietary shoulder-to-shoulder "premium connector." Click here to enlarge imageThis corrosion barrier ring enables placement of internal liners within any unmodified shoulder-to-shoulder premium thread without the need for a special coupling. Used in conjunction with DUOLINE, this firm's premium internal corrosion resistant lining system for oil field steel tubing and line pipe, helps solve problems beginning with a capability for joining a range of pipe that traditionally required custom designed solutions. DUOLINE has prov...

Why Register?

Non-subscribers can only view whitepapers by providing name, home and email address, phone number and other information and comment on/rate articles.

Why Subscribe?

Oil & Gas Journal subscribers with login credentials can access these premium features of OGJ Online:

  • Current Issue – an html version of the current week's issue of Oil & Gas Journal.
  • Past Issues – An Electronic OGJ Archive. A keyword-searchable archive of all issues of Oil & Gas Journal dating back to 1990; also searchable by issue date.
  • Market Journal – a weekly round-up of the oil and gas markets, with observations from leading analysts.
  • Editor's Perspective – a short article of insight and opinion by the Editor of Oil & Gas Journal.
  • OGJ Industry Stats – quick access to current industry statistics from Oil & Gas Journal.
  • OGJ Survey Downloads - quick access to exclusive reports from Oil & Gas Journal.


Subscriber Help or Subscribe

Oil & Gas Journal Subscribers: Have your subscription number (from the mailing label on the cover of your Oil & Gas Journal) and e-mail address ready to set up your online account through Customer Service Assistant.

If you're not an Oil & Gas Journal subscriber, start a subscription and gain access to the subscriber areas of OGJ Online now.

Stay Connected