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Industry Glossary Term

Horizontal Well

A well that is drilled vertically to a certain depth then curved to run horizontally through a target formation, requiring subcontractors to mobilise specialised equipment and crews for extended-reach drilling, completions, and stimulation work that typically involves more complex logistics and longer on-site durations than conventional vertical wells.

Related Terms

Trenchless Technology

Industry

Methods for installing or repairing underground pipelines and conduits without open-cut excavation. Common techniques include HDD (Horizontal Directional Drilling) and pipe bursting. Subcontractors specialising in these methods often command premium rates due to reduced surface disruption and specialised equipment requirements.

Rod Spec

Industry

A technical specification document outlining the dimensions, grade, and tolerances for sucker rods used in artificial lift systems. Subcontractors must match rod spec requirements exactly before mobilising equipment or labour. Non-compliance can result in rejected work and withheld payment.

MWD (Measurement While Drilling)

Industry

A real-time data acquisition process used during directional drilling that transmits downhole measurements — such as wellbore trajectory, formation data, and tool orientation — to surface crews without interrupting operations. For subcontractors, MWD services represent a specialised scope of work requiring certified technicians and dedicated equipment, often billed as a separate line item on drilling contracts.

Microgrid

Industry

A small, self-contained power system that operates independently from the main utility grid. Subcontractors working remote sites often rely on microgrids for consistent site power. Knowing the local power setup affects equipment compatibility and fuel logistics planning.

SPR (Strategic Petroleum Reserve)

Industry

A government-held emergency stockpile of crude oil that, when released or replenished, can trigger short-term surges in drilling, transportation, and maintenance contracts as operators respond to shifting supply directives. Field service companies should monitor SPR activity as an indicator of near-term work mobilisation and pricing conditions in their region.

Bonus Bid

Industry

A lump-sum payment made by an operator to secure rights to a lease block, separate from royalties. For subcontractors, a large bonus bid signals operator commitment and can indicate upcoming project activity in that area.

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