What Is NPT (Non-Productive Time)?
Non-Productive Time (NPT) in oil and gas refers to any period during drilling, completions, or production operations when no useful work progress is being made toward the operational objective. NPT includes equipment failures, waiting on weather, waiting on equipment or services, stuck pipe incidents, lost circulation events, and unplanned shutdowns. NPT typically accounts for 10–30% of total well construction time and is one of the largest controllable cost drivers in upstream operations.
What Causes NPT?
- Equipment failure (rig equipment, pumps, BOPs)
- Stuck pipe or lost circulation during drilling
- Waiting on weather (offshore operations)
- Waiting on equipment, parts, or services
- Well control events (kicks, blowout prevention)
- Wellbore instability and collapse
- Supply chain delays
- Safety incidents requiring operational shutdown
How Is NPT Measured?
NPT is tracked using daily drilling reports (DDRs) or daily operations reports. Each operational activity is classified as productive or non-productive, and NPT is typically expressed as a percentage of total operational time or as total hours/days of NPT per well. Industry benchmarking compares NPT rates across wells, rigs, and operators.
How AI Reduces NPT
AI analyzes historical drilling and operations data to identify patterns that precede NPT events — enabling predictive intervention before problems occur. Collide's completion benchmarking workflow compares well-level performance data across an operator's portfolio to identify where NPT is occurring, what's causing it, and which operational practices minimize it.