Loose, weakly bonded subsurface material — such as sand, gravel, or soft clay — that hasn't hardened into solid rock. These formations create unstable borehole conditions, increasing risk of collapse and equipment loss. Subcontractors drilling or excavating in these zones often face additional scope, specialised equipment requirements, and potential cost disputes.
Unconsolidated Formation
Related Terms
Tidal-Water Export Terminal
IndustryA coastal or estuary facility where bulk commodities like LNG or crude oil are loaded onto marine vessels for export. Water depth fluctuates with tides, affecting vessel scheduling and your crew's access windows. Subcontractors must plan shifts and equipment mobilisation around tide tables and vessel berthing schedules.
In-Service Date
IndustryThe date when equipment or a facility is officially commissioned and begins active operation. For subcontractors, this date often triggers billing milestones, warranty periods, or contract close-out requirements. Missing this date can result in penalties or delayed final payment.
ISNetworld
IndustryA contractor management platform used by operators to verify that subcontractors meet safety, insurance, and compliance requirements before being allowed to work on sites. Maintaining ISNetworld compliance is essential for subcontractors working with major operators.
Field Ticket
IndustryA document created in the field that records work performed, equipment used, materials consumed, and time spent. Field tickets are the basis for invoicing and must typically be approved by the customer before payment.
Near-Field Exploration
IndustryExploration activity targeting new reserves close to existing producing infrastructure. For subcontractors, it often means faster mobilisation and shorter campaigns using established site access. Expect work scopes similar to existing nearby operations, with familiar equipment and logistics.
Drillship
IndustryA self-propelled vessel equipped with a drilling rig used for offshore exploration and production in deepwater locations, which subcontractors may be mobilised to for specialised services such as equipment maintenance, inspection, or crew support under strict offshore safety and logistical requirements.
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