Goal of the analysis:
To measure the operational efficiency, cost-effectiveness, and overall quality of drilling and completion activities to optimize well delivery and improve returns.
Data required:
- Daily drilling reports and completion logs
- Planned versus actual drilling schedules
- Total footage drilled and corresponding drilling days
- Rig rates, service costs, and materials expenditures
- Non-productive time (NPT) records and root causes
- Key performance indicators (e.g., rate of penetration, cost per foot)
Detailed step-by-step instruction on how to conduct the analysis:
1. Collect operational drilling data: Gather daily drilling reports, time-depth charts, and completion logs to establish a baseline for performance measurement.
2. Calculate key performance metrics: Derive indicators such as Drilling Efficiency = (Total Footage Drilled / Total Drilling Days) and compare against internal or industry benchmarks.
3. Compare actual to planned performance: Examine discrepancies between planned vs. actual drilling schedules, costs, and well durations to isolate areas of overrun or savings.
4. Analyze non-productive time (NPT): Identify the root causes of delays (e.g., equipment failures, waiting on weather, logistics) and quantify their impact on cost and schedule.
5. Review well completion strategy: Assess the completion design, fluid types, and stimulation methods to determine if they align with the reservoir’s characteristics and well objectives.
6. Perform cost analysis: Break down drilling and completion costs into major components (e.g., rig cost, casing, cement, frac services) to pinpoint high-cost drivers.
7. Identify improvement opportunities: Synthesize findings from performance metrics, cost analysis, and NPT reviews to recommend process optimizations or technology adoption.
Format of the output of analysis:
- Tabular summaries of drilling KPIs (e.g., rate of penetration, cost per foot)
- Charts comparing planned vs. actual time and cost performance
- NPT breakdown with categorized root causes
- Recommendations for drilling and completion process improvements
How to interpret results:
- Significant gaps between planned and actual performance may indicate issues in project planning, execution, or technology application.
- Persistent or high NPT segments highlight areas needing better maintenance, logistics, or operational training.
- Favorable cost per foot and fast drilling rates suggest efficient processes, potentially enabling expansion of drilling programs or capital reallocation.
Steps a company can take to improve on this measure:
1. Enhance planning and scheduling processes by using detailed offset well data and accurate geological models.
2. Implement performance-based contracts with drilling and service companies to align incentives for reducing costs and NPT.
3. Adopt modern drilling technologies such as top drives, rotary steerable systems, and real-time downhole monitoring.
4. Conduct regular performance reviews and lessons-learned sessions to address issues promptly and share best practices across teams.
5. Invest in predictive maintenance programs for critical equipment to minimize unplanned downtime and enhance overall reliability.