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
Drilling Optimisation
IndustryThe process of improving drilling speed, efficiency, and cost performance on a well. Subcontractors may be asked to adjust crew rotations, equipment deployment, or service timing to support optimisation targets. Faster drilling cycles can shorten contract durations, affecting your crew planning and invoicing schedules.
Embankment
IndustryA raised earthen structure used to support roads, pipelines, or equipment pads on unstable or uneven terrain. Subcontractors often work on or around embankments during site prep, grading, and pipeline installation. Stability assessments may affect crew access and equipment positioning.
Retrieval System
IndustryA retrieval system is a method or tool used to recover equipment, tools, or materials from a wellbore or work site. Subcontractors may be responsible for operating or maintaining retrieval systems during fishing jobs or abandonments. Proper handling affects both project timelines and liability.
Full Displacement Pile
IndustryA foundation pile driven or screwed into soil without removing material, pushing ground laterally to create a tight fit. Common in oil and gas facility and construction site foundations. Subcontractors should confirm soil displacement specs early, as ground conditions directly affect equipment selection and crew scheduling.
MISO (Midcontinent Independent System Operator)
IndustryA regional grid operator managing electricity transmission across central North America. Subcontractors working on power infrastructure or energy facilities in MISO territory must align project schedules with its grid access and outage approval processes. Permitting and energisation timelines are often dictated by MISO interconnection queues.
Call-Out (call-Out Activity)
IndustryA single, unplanned service request dispatched to a subcontractor or field technician outside of scheduled work. Each call-out is typically logged as a discrete billable event. Subcontractors often charge a flat call-out fee plus time and materials.
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.
6 months agoIndustryJacobs-PCL Wins $1B SF Plant Upgrade Built Around Live Operations
SFPUC picked a Jacobs-PCL joint venture for a $1 billion progressive design-build nutrient reduction project at its largest treatment plant. The plant must keep running during construction, which shapes how subs should pursue early involvement.
11 hours agoIndustryAEP Lifts Capital Plan 30% to $100B as Data Center Load Hits 84 GW
AEP raised its five-year capital plan to $100 billion, with $37 billion for transmission and $20 billion for gas generation. A 10.4-GW Ohio data center campus drives the load growth, and three 765-kV lines are slated for 2028 through 2030.
yesterdayIndustryTranche-Scale Transmission Planning: Early Contractor Input Wins
A T&D World webinar summary says utilities should bring contractors in when engineering is 10% to 30% complete and treat site access as engineering. Here is what that means for crews and yard commitments.
yesterdayRelated 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
