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IndustryGlossary Term

Tieback

A structural anchor or connection point used to secure equipment, pipelines, or wellheads back to an existing infrastructure system, commonly referenced in subcontractor scopes of work when connecting new installations to live or existing lines. Subcontractors should confirm tieback specifications and isolation procedures clearly in their contracts, as this work often involves elevated risk and may require additional certifications or permits.

Related Terms

Shaker Screens

Industry

Mesh filters mounted on shale shakers that separate drill cuttings from drilling fluid on the rig. Subcontractors handling fluid management or solids control must track screen condition and swap them regularly. Damaged or plugged screens slow operations and can trigger downtime charges against your crew.

Solar-Plus-Storage

Industry

A power system pairing solar panels with on-site batteries to supply electricity at remote job sites. Subcontractors may install, maintain, or work alongside these systems instead of diesel generators. Familiarity with this equipment is increasingly expected on off-grid oil and gas and construction sites.

Transmission Main

Industry

A large-diameter pipeline that moves water, gas, or other fluids over long distances at high pressure. Subcontractors are often hired for installation, inspection, or maintenance work on these lines. Strict pressure ratings and material specs govern all field work.

NUCA (National Utility Contractors Association)

Industry

A U.S. trade association representing underground utility and excavation contractors. For subcontractors, membership signals credibility and provides access to training, advocacy, and industry standards. Useful when bidding on American utility projects requiring recognised affiliations.

HDPE (High-density Polyethylene)

Industry

A durable, corrosion-resistant plastic used for pipes, containment liners, and fluid transfer systems on job sites. Subcontractors commonly install or tie into HDPE pipelines in water, gas distribution, and environmental remediation scopes. Its lightweight nature reduces handling costs but requires certified fusion welding for pressure-rated connections.

Inventory Drawdown

Industry

The depletion of stored materials, parts, or consumables used during field operations. For subcontractors, rapid drawdown can trigger reorder costs and disrupt project timelines. Tracking drawdown rates helps avoid job-site shortages and unexpected procurement expenses.

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