A pipeline tie-in is the physical connection of a new pipeline section to an existing live system. For subcontractors, tie-in work often requires hot-tap certified crews and strict isolation procedures. Scheduling is critical, as tie-ins typically involve planned shutdowns with tight production windows.
Pipeline Tie-in
Related Terms
Radial Conveyor
IndustryA belt conveyor mounted on a wheeled chassis that pivots in an arc to distribute bulk materials across a wide stockpile area. Subcontractors use them on aggregate, sand, and gravel sites to manage material placement without constant repositioning. They reduce manual labour and speed up site operations significantly.
Private Activity Bonds
IndustryTax-exempt bonds issued by governments to finance private infrastructure projects like pipelines or terminals. Subcontractors may work on bond-funded projects, which often carry strict procurement and reporting requirements. Understanding this can affect how you bid and invoice on qualifying jobs.
Bcf (billion Cubic Feet)
IndustryA standard unit measuring large volumes of natural gas, equal to one billion cubic feet. Subcontractors use Bcf figures to gauge project scale and forecast workload duration. Larger Bcf targets typically mean longer contracts and more field service opportunities.
Pressure-Regulating Valve
IndustryA PRV (Pressure-Regulating Valve) automatically maintains downstream pressure at a set level within piping or process systems. Subcontractors installing or servicing PRVs must follow manufacturer specs and site pressure ratings precisely. Improper calibration can trigger shutdowns, client penalties, or serious safety incidents.
Battery Tolling Agreement
IndustryA contract where a subcontractor operates a battery energy storage system on behalf of an asset owner, earning a fee without owning the asset. Common on remote sites and camps where third-party power management services are contracted out. Subcontractors are paid for capacity and availability, not energy consumed.
Epc (engineering, Procurement, and Construction) Contractor
IndustryA company hired to deliver a project from design through build, acting as the main contractor above subcontractors. As a subcontractor, your client and contract holder is typically the EPC, not the asset owner. They control scope, scheduling, and invoice approval on site.
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