Indirect mechanical stress that develops in structures or piping due to thermal expansion, settlement, or equipment movement. Unlike primary stress, it isn't caused by direct applied loads. Subcontractors must account for it during installation and inspection to avoid material fatigue and warranty disputes.
Secondary Stress
Related Terms
Proved Development Locations
IndustrySites already approved for drilling within a producing field, based on confirmed reserves data. For subcontractors, these locations represent near-term, lower-risk work opportunities. Expect faster mobilisation timelines and more defined scopes compared to exploratory sites.
Surface Alignment
IndustryThe process of ensuring above-ground equipment, piping, or structural components are precisely positioned and levelled before commissioning. Subcontractors are often responsible for completing alignment checks as a hold point prior to handover. Poor alignment can trigger costly rework and delay final sign-off.
Oil-Directed Drilling
IndustryA drilling programme targeting oil reservoirs rather than natural gas. Subcontractors can expect higher rig activity and longer campaign durations in regions where oil prices justify development. Demand for completions, fluid hauling, and wellsite services typically rises during oil-directed cycles.
Pilot Bore
IndustryA 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.
Medium Voltage Transformer
IndustryA device that steps electrical voltage up or down within the 1 kV to 35 kV range on industrial job sites. Subcontractors often work around these units when installing temporary power or connecting equipment. Strict lockout/tagout and electrical certification requirements apply near this equipment.
Open Season
IndustryA formal period when a pipeline or facility operator accepts capacity commitments from potential shippers or users. For subcontractors, it signals upcoming project activity and a chance to position for related field service work. Winning commitments during open season often triggers procurement and mobilisation timelines.
Latest Industry News
Secondary Stress Failures in Piping and Pressure Vessels: What Field Teams Need to Know
A technical review in Inspectioneering Journal highlights how secondary stresses from welding, thermal expansion, and displacement are behind some of the costliest piping and pressure vessel failures in oil and gas operations.
5 months agoIndustryEIA Sees Record US Crude Output in 2026 on Permian, Gulf Gains
The EIA forecasts US crude oil production will average a record 13.8 million b/d in 2026, driven by Permian basin growth and new Gulf of Mexico projects.
11 hours agoIndustryEIA: Solar Generation to Jump 21% in 2026 on Data Center Demand
The U.S. Energy Information Administration forecasts solar generation growth of 21% in 2026 and 18% in 2027, driven by data center and manufacturing electricity demand, with growth concentrated in ERCOT and MISO.
11 hours agoIndustryPennsylvania PUC Opens Review of Data Center Rates, Curtailment Rules
The Pennsylvania PUC voted to examine ratemaking transparency and emergency curtailment rules as data center load growth strains PJM grid capacity, setting up regulatory changes that could reshape utility rate cases and interconnection timelines.
11 hours agoRelated Guides
How Operator Mergers and Acquisitions Affect Your Subcontract Agreements
When operators merge, get acquired, or sell assets, subcontractor agreements are caught in the middle. Learn how M&A activity affects your MSA, payment terms, vendor status, and what to do before, during, and after a deal closes.
Industry GuideHow Rig Count Trends Affect Subcontractor Demand and What to Do About It
Rig counts are the earliest signal of where field service work is heading. Learn how to read drilling activity trends, anticipate demand shifts, and position your crew before the phone stops ringing.
Industry GuideWhat Is an AFE in Oil and Gas and How Does It Affect Subcontractor Payments?
An AFE (Authorization for Expenditure) controls every dollar spent on an oilfield project. Learn how it affects your billing, change orders, and cash flow as a subcontractor.
Stay sharp on field operations
Industry news and insights, delivered to your inbox.
Subscribe to FieldNews
