When preparing for production, the drilling rig is removed from the wellhead and a ‘Christmas Tree’ is positioned over the top.
The Christmas Tree, also known as the Production Tree, controls the well. It’s a collection of barriers, valves and seals, as well as a gas and water separator. The Production Tree controls flow rates, regulates pressure and connects the well to the pipeline heading towards the Production Facility.
The Production Tree also enables MEPAU to test the pressure of the well to make sure it’s safe, both for humans and the subsurface environment.
During the production phase there are typically two staff members working at each gas field, which operates around the clock.
Once the well is exhausted it is decommissioned and rehabilitated.
Production well examples include Senecio-03 and Waitsia-01.