Alerts & Learnings Safer Together: Methane gas leak due to a snapped nipple A wellsite operator heard an audible leak of methane gas while at a wellsite to complete a separator dump. The source of the leak was from a snapped nipple (½ inch - DN15) at the base of an instrument on the non-productive side of the wellhead. To view this Safer Together alert in full and download the Step Change in Safety Verifications of Learning and Feedback Form, click 'Download Alert' button above. Download Alert Share: Share on Linkedin Share on Facebook Share on Twitter Share with Email