OHS Code

Published Date: July 01, 2009
Bookmark this page

Part 37 Oil and Gas Wells

Section 781 Well servicing

(1) This section applies to well servicing operations.

(2) An employer must ensure that

(a) when circulating hydrocarbons, the air intake and exhaust of the pump motor are located at least 6 metres away from the rig tank,

(b) if a tank truck is being loaded or unloaded, it is at least 6 metres away from the rig tank in a direction away from the well bore, and

(c) carbon dioxide suction lines are secured to the supply vehicle and pumping unit.

(3) An employer must ensure that, before pressurization begins, warning signs prohibiting the presence of workers in the area and complying with CSA Standard CAN/CSA-Z321-96 (R2006), Signs and Symbols for the Workplace, are positioned along the discharge pipelines.

(4) An employer must ensure that, before fluids are unloaded into the well-head, workers hydraulically pressure test the lines between the pump and the well-head for 10 minutes

(a) to at least 10 percent above the maximum pressure anticipated during service, but

(b) not above the working pressure rating of the line.

(5) An employer must ensure that the controls on oil savers can be readily operated by a worker on the rig floor.

(6) An employer must ensure that when a snubbing unit conducts gas-assisted sand clean-out, it is done only by a competent worker, during daylight hours, and using equipment intended for that activity.