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IndustryGlossary Term

Debottlenecking

The process of identifying and removing constraints that slow production or operations on a job site. For subcontractors, this often means short-term scopes to upgrade equipment, piping, or workflows. Debottlenecking projects can generate fast-mobilisation work but typically run on tight timelines.

Related Terms

LNTP (Limited Notice To Proceed)

Industry

A partial greenlight from a client authorising subcontractors to begin limited, specific work before the full contract is executed. It typically covers early mobilisation, procurement, or site prep activities only. Scope and spending are strictly capped, so track your costs carefully to avoid unauthorised overruns.

MSE (Mechanically Stabilised Earth)

Industry

A retaining wall system that uses layers of compacted fill reinforced with geogrid or straps to hold back soil. Common on pipeline corridors, well pad construction, and access road projects. Subcontractors may be scoped for earthworks, backfill compaction, or wall panel installation.

Deep Foundation

Industry

A structural support system that transfers building loads to stable soil or rock far below the surface, typically using piles or caissons. Subcontractors are often mobilised for drilling, pile driving, or concrete work on these scopes. Expect specialised equipment requirements and strict geotechnical inspection protocols on site.

Fractionation

Industry

The process of separating raw natural gas into sellable components like propane, butane, and ethane at a processing facility. Subcontractors often support fractionation plants through instrumentation, maintenance, and turnaround work. Understanding the process helps crews align their scope with plant operating priorities.

Export Capacity

Industry

The maximum volume of oil, gas, or product a facility can move off-site through pipelines, tankers, or terminals. For subcontractors, export capacity limits often dictate project pace and crew scheduling. Delays in export infrastructure can stall work and affect invoice milestones.

Capital Maintenance Agreement

Industry

A long-term contract where a subcontractor provides scheduled upkeep and repairs on a client's major assets or facilities. Work scopes, pricing, and mobilisation terms are typically locked in advance. These agreements offer subcontractors predictable revenue but may limit flexibility to take on other work.

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