What factors are contributing to the unexpected 30% increase in non-productive time for Schlumberger's WesternGeco seismic data acquisition operations in the Gulf of Mexico?

Introduction

Schlumberger's WesternGeco division is facing a significant challenge with a 30% increase in non-productive time during seismic data acquisition operations in the Gulf of Mexico. This unexpected rise in downtime is a critical issue that demands immediate attention and a thorough root cause analysis. I'll approach this problem systematically, examining various factors that could contribute to this productivity loss, and develop a comprehensive strategy to address and mitigate the issue.

Step 1

Clarifying Questions (3 minutes)

• Looking at the operational context, I'm wondering about the specific timeframe of this increase. Has this 30% rise occurred suddenly or gradually over time?

Why it matters: Understanding the timeline helps identify potential triggers or gradual systemic issues. Expected answer: The increase has been observed over the last quarter. Impact on approach: A sudden increase might point to a specific event or change, while a gradual increase could indicate a systemic problem.

• Considering the complexity of seismic operations, I'm curious about any recent changes in equipment or technology. Have there been any significant upgrades or modifications to the seismic acquisition systems in the past six months?

Why it matters: New technology or equipment could introduce unforeseen complications. Expected answer: A new seismic streamer system was implemented three months ago. Impact on approach: This would shift focus to the integration and compatibility of the new system with existing processes.

• Thinking about human factors, I'm interested in the crew composition. Has there been any significant turnover or changes in the offshore crew structure recently?

Why it matters: Crew changes can impact operational efficiency and knowledge transfer. Expected answer: There's been a 20% turnover in offshore personnel in the last four months. Impact on approach: This would highlight the need to examine training procedures and knowledge retention strategies.

• Considering external factors, I'm curious about weather patterns. Have there been any unusual weather conditions in the Gulf of Mexico that might be affecting operations?

Why it matters: Adverse weather can significantly impact offshore operations and safety protocols. Expected answer: Weather patterns have been consistent with historical norms. Impact on approach: If weather is not a factor, we'd focus more on internal operational issues.