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Assumptions - Coggle Diagram
Assumptions
Pipe
welding and coating will be completed prior to pull back process
assume there will be no collapse of the hole or destruction of the pipe
Pipe size is NPS 48
contents of the pipe are natural gas
maximum operating pressure of 9930 kPa
minimum operating temp of -5 degrees Celsius
maximum operating temperature of 45 degrees Celsius
Outer diameter of 48 inches
No interaction with preexisting pipes
Scope
Pipeline in-service April 1, 2022 :
Wapiti River, Grand Prairie, Alberta
Installation and Site Remediation
Output
General Construction Plan
2D Rendering of design
Economic Analysis
River Crossing not Pipeline Routing
Drilling
Drilling of the pilot hole follows bore path accurately
installation temperature of -10 degrees Celsius
Ream to diameter of 60 inches
Equipment required will be available
Cost
Average contractor rates (based off research)
Average machinery rates (based off research)
Average material costs (based off research)
Extrapolate based on project numbers
Surrounding Environment
Any soil/sand is compatible with HDD drill
Grande Prairie climate
Drilling permitted in location provided by client
Regulations
All permits have been acquired properly and there are no delays associated with obtaining them
Assuming all CSA Z662 code is being followed in all aspects of design and construction
The regulator is Canadian Energy Regulator
Safety
All construction will be done in a safe manner with a trained construction crew
Assume construction shifts are a standard legal length