| The Riverdale 14-4-12HC was shut-in temporarily (3-7 days max) for Anadarko/KMGG to blow down their gas sales line. Adams County is reclaiming an old gun range just south of the site. We performed a hard shut-in so the ground valve, master valve, and wing valves were closed. However, the pumper did not turn off the chemical injection pump and after two days of being shut-in the pressure was increased to a large enough value that the threads on the flowing tree gave way and allowed fluid to escape. This is something I am taking very seriously and we will be installing pressure relief valves on our chemical injection pumps to prevent this in the future. Further, while we have automation onsite, the automation could only warn us of the potential accident, not prevent it entirely. |