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Industry Glossary Term

Tubular Running

The process of installing pipe, casing, or tubing strings into a wellbore during drilling or completion operations. Subcontractors providing tubular running services supply specialised crews and equipment such as power tongs and elevators. Accurate job scoping is critical, as rig time is costly and delays directly affect invoicing and contract performance.

Related Terms

Topside

Industry

The above-water structure of an offshore platform, including processing equipment, living quarters, and wellheads. Subcontractors working topside must meet strict offshore safety and certification requirements. Scope of work and billing rates often differ significantly from subsea or onshore assignments.

Sequencing (construction)

Industry

The planned order in which construction tasks must be completed before the next trade can begin work. Subcontractors depend on accurate sequencing to schedule crews and avoid costly downtime. Delays in one phase can push back your mobilisation and affect your invoicing schedule.

Preventive Maintenance

Industry

Scheduled servicing of equipment before failures occur, reducing costly downtime on job sites. Subcontractors are often contracted specifically to perform PM work on client assets. Documented PM records also support compliance audits and contract renewals.

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.

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.

Scope Validation

Industry

The process of confirming that the work described in a contract matches actual field conditions before mobilising. Subcontractors use it to catch scope gaps that could lead to unpaid extras. Undocumented changes discovered on-site are easier to dispute without prior validation.

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