Execution plans
One document that says what will be built, how, by whom, to what standard, within what permit, and what happens when it does not go to plan. Most projects have five documents that each cover part of this and contradict each other in the overlaps.
What goes in one
The structure below is the one this practice used on a recent sixty-five-kilometre northeast British Columbia system built almost entirely trenchless. It is method-agnostic and regulator-agnostic in shape; the content is rewritten for each project.
The frame
- Applicable regulations and permit conditions
- Purpose and scope
- Feasibility, environmental, geotechnical and archaeological assessments
- Footprint calculation and land package
- Per-disposition engineering data
The engineering
- Design basis and the quality clauses it maps to
- Segment summary, stationed
- Line assignment and anti-collision plan
- Downhole assemblies by pipe size
- Navigation and calibration
- Annular pressure and monitoring
The build
- Supervision and competency
- Ground disturbance; clearing and grade
- Stringing, welding, coating
- Segment set-up; pilot bore; reaming; installation
- Tie-in, lowering-in and compaction
- Cleaning, gauging, testing and line drying
- Reclamation
The crossings and the failures
- Utility, road, rail and watercourse crossing procedures
- High-value and archaeologically sensitive ground
- Entry-pit liners and containment
- Drilling fluid composition and fluid release
- Inadvertent-return response and continuance decision
The companion documents
The drill plan
Per-crossing: the profile, the limits, the assembly, the fluid programme and the hold points — on a sheet the driller can have at the rig.
The emergency response plan
Release, strike, fire, injury and evacuation, with the notification tree and the regulator's reporting clock on it.
The inspection and test plan
Every phase, every check, every hold point and who signs it. See quality and inspection.
An execution plan that nobody on the spread has read is paperwork. We write them to be used, and where we are also acting as owner's representative we test whether the crew can find the things in it that matter.
What you get
- A project-specific construction execution plan, issued for review and then for use.
- Per-crossing drill plans.
- The environmental and fluid-release plan, with the response ladder and trigger values.
- Appendices: footprint summary, segment summary, downhole assemblies, pressure envelope.
- A document set formatted for your regulator's submission requirements.