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IndustryGlossary Term

Downstream

Refers to the refining, processing, and distribution segment of the oil and gas industry. For subcontractors, downstream work typically involves maintenance and turnarounds at refineries or petrochemical plants. These sites often have stricter safety protocols and certification requirements than upstream operations.

Related Terms

BOED (Barrels of Oil Equivalent Per Day)

Industry

A standardised production metric that converts all hydrocarbons—oil, gas, and NGLs—into a single daily output figure. Operators use BOED to size contracts and scope field service requirements. Higher BOED rates typically mean larger crew needs, more equipment, and increased service volumes for subcontractors.

Bcf/d (billion Cubic Feet Per Day)

Industry

A measure of natural gas production or pipeline throughput volume. Higher BCF/d figures on a project typically signal larger-scale operations requiring more field crews and equipment. Subcontractors can use this metric to gauge the scope and duration of potential work.

Derivative Goods

Industry

Products created by processing or transforming raw materials supplied under a contract, such as fabricated components or treated fluids. Subcontractors must clarify ownership rights over derivative goods before work begins. Contracts often assign these rights to the prime contractor or client by default.

Miocene Formation

Industry

A geological layer dating from roughly 5 to 23 million years ago, often targeted for oil and gas production. Subcontractors may encounter specific drilling, completion, or well-servicing scopes tied to Miocene reservoirs. Formation characteristics influence equipment selection, mud programmes, and crew specialisation requirements.

Phased Array Ut (phased Array Ultrasonic Testing)

Industry

An advanced non-destructive testing method that uses multiple ultrasonic beams to inspect welds and materials for defects. It replaces traditional radiography on many pipeline and pressure vessel jobs. Subcontractors offering PAUT services often command higher rates and qualify for more specialised scopes.

Easement

Industry

A legal right allowing access to land owned by someone else for a specific purpose, such as running pipelines or power lines. Subcontractors must confirm easement boundaries before mobilising equipment or breaking ground. Working outside easement limits can trigger legal liability and project shutdowns.

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