Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 57 - OIL AND GAS DRILLING AND SERVICING OPERATIONS
SPECIAL SERVICES
Section R. 408.15743 - Treating and cementing discharge lines

(1) Before initiating well servicing operations, the well shall be checked for pressure and proper steps shall be taken to remove the pressure or to ensure safe operation under pressure.

(2) A treating or cementing discharge line shall not be placed under any mobile equipment nor shall any mobile equipment be spotted over any such line.

(3) A discharge pressure line shall include sufficient flexible joints to avoid line rigidity and minimize vibration at the wellhead.

(4) When using an open-ended flow discharge line to flow or bleed off a well, the line shall be secured to prevent whipping. The flow discharge line shall be anchored before opening the wellhead control valve.

(5) All pressure shall be bled from a discharge line before breaking out or rigging down the line.

(6) After a hazardous substance has been pumped, all discharge lines shall be properly flushed before breaking out.