Rig Down: Equipment Teardown, Rig Move Sequencing, and WCSB Pad Drilling Economics

To rig down is to systematically dismantle a drilling or service rig and its associated equipment so the unit can be safely transported and re-erected at the next location. The term covers the full teardown sequence that follows the completion of operations on a well: disconnecting power sources and generators, bleeding off and decoupling pressurized systems such as the standpipe, mud lines, and blowout preventer hydraulic controls, breaking down the substructure and mast, disassembling the pump and tank systems, and loading the components onto trucks for the move off location. It is the operational inverse of rigging up, where the same components are assembled and commissioned at a new site. Rigging down is a high-risk phase of the well lifecycle because crews handle heavy loads, work at height while lowering the mast, and break connections on systems that may still hold residual pressure or contain drilling fluid. In the Western Canadian Sedimentary Basin, the rig-down sequence is governed by occupational safety regulations and by the operator's well-control procedures, and it must be completed before the rig can be released and the rig move can begin. The economics of rigging down are significant because a drilling rig earns nothing while it is being torn apart and trucked between leases. Day rates for a modern WCSB pad-capable rig run from roughly CAD 18,000 to CAD 35,000 per day depending on depth rating and specification, and a conventional rig move that requires a full rig down and rig up can consume two to five days of non-productive time plus trucking and crane costs that frequently exceed CAD 100,000 for a deep Montney or Duvernay rig. This cost structure is the single biggest driver behind the shift to multi-well pad drilling across the basin. On a pad, the rig does not fully rig down between wells; instead it walks or skids a few metres on hydraulic walking systems or rails from one wellhead to the next, avoiding the full teardown entirely and cutting move time from days to hours. Only when the entire pad is finished does the crew perform a complete rig down for the long-haul move to the next pad. The procedure is also tightly linked to well-control safety: the blowout preventer stack and the wellhead must be secured and the well left in a safe, suspended, or completed state before any pressurized equipment is decoupled, and crews follow the operator's and contractor's combined teardown checklist under AER Directive 037 licensing and Directive 020 well-abandonment or suspension requirements where applicable. Service rigs used for completions, workovers, and abandonment go through the same rig-down discipline at a smaller scale, and the freshly torn-down components, the mast sections, substructure, and tank packages, become the load list for the rig move that connects one location's economics to the next.

The Rig-Down Sequence on a Conventional WCSB Lease

After the well reaches total depth and casing is run, the crew first secures the well, then bleeds and isolates the mud and BOP hydraulic systems. Power is shut down and generators disconnected, the mud is displaced or stored, and tanks are cleaned. The mast is lowered onto its supports, pins are pulled, and the substructure is broken into truckable modules. Cranes lift the heavy packages onto trailers, and a load sheet tracks every component for re-erection. A typical deep WCSB rig generates 25 to 40 truck loads, and the sequence is hazard-assessed at each step because dropped loads and stored energy in lines are the dominant injury risks.

Walking Rigs and the Economics of Skipping Rig Down

Hydraulic walking systems let a modern pad rig lift itself and step three to eight metres to the next wellhead without lowering the mast or disconnecting most systems. A move that would take three days of full rig down and rig up collapses to four to eight hours. On a six-well Montney pad, avoiding five intermediate teardowns can save well over CAD 1.5 million in combined rig time, trucking, and crane costs, which is why nearly all new WCSB unconventional development is drilled from pads rather than single-well leases.

Related Terms

Rigging down is the necessary precursor to the rig move, the trucking and relocation of all torn-down components to the next location. It is the operational opposite of rig up, where the same equipment is reassembled and commissioned. The procedure cannot begin until the blowout preventer stack is secured and the well control envelope is safe, and on modern pad drilling developments the full teardown is deferred by walking the rig between wellheads to slash non-productive time.

Real-World WCSB Scenario: A Montney Pad Demobilization

A Tourmaline-operated six-well Montney pad near Grande Prairie finishes drilling its final lateral. The contractor crew secures all six wellheads, installs the completion-ready BOP arrangement, and begins a full rig down for the long-haul move to a pad 65 km away. The teardown takes 58 hours, generating 34 truck loads and requiring two pickers at a combined CAD 11,000 per day. Total demobilization cost, rig time plus trucking plus cranes, lands near CAD 215,000.

Because the rig walked between the five intermediate wellheads rather than rigging down each time, the operator avoided five additional full teardowns. Management's drilling engineers calculate the pad approach saved roughly CAD 1.4 million versus single-well leases and trimmed 18 days off the program, a saving that flowed straight into the play's break-even gas price and helped justify the next pad in the capital budget.