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Industry Glossary Term

Frac Flowback

The phase after hydraulic fracturing when water, sand, and hydrocarbons flow back to surface from the wellbore. Subcontractors are often mobilised quickly to manage fluid handling, testing, and disposal. Flowback work can be short-duration but requires crews and equipment on standby.

Related Terms

Support Activities for Oil and Gas Operations

Industry

An industry classification covering subcontractors who provide services to upstream oil and gas producers without extracting resources themselves. This includes well servicing, site prep, equipment rental, and pipeline support. Most field service companies in oil and gas fall under this category for tax and regulatory purposes.

Pilot Bore

Industry

A small-diameter initial hole drilled along a planned path before reaming to full size, commonly used in horizontal directional drilling. Subcontractors use it to verify alignment and ground conditions before committing to the full excavation scope.

Equipment Uptime

Industry

The percentage of scheduled time that equipment is operational and available for use on a job site. For subcontractors, high uptime directly affects billing hours, client satisfaction, and contract renewals. Downtime caused by mechanical failure or poor maintenance often falls on the subcontractor to remedy at their own cost.

Predictive Maintenance

Industry

A maintenance approach that uses equipment data and monitoring to forecast failures before they occur. Subcontractors may be dispatched for targeted repairs based on sensor alerts rather than fixed schedules. This reduces emergency callouts and helps crews plan mobilisation more efficiently.

Spud Date

Industry

The date when drilling begins on a new well. Marks the start of drilling operations.

BHA (Bottom Hole Assembly)

Industry

The collection of drilling tools and equipment at the bottom of the drill string, including the drill bit, drill collars, stabilizers, and downhole motors. For drilling subcontractors, BHA configuration directly impacts drilling performance, tool wear rates, and operational efficiency.

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