Continuous Gas-Lift Optimization: Offshore Gulf of Mexico

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Continuous Gas-Lift Optimization Offshore Gulf
of Mexico

• April 13, 2005

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Introduction

• Background
• Technical Description
• Field Criteria
• Method
• Costs
• Qualifications
• Conclusion

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Background

• SS 20850 miles off coast of LA
• 90 of wells on continuous gas-lift
• Limited injection gas fluctuates
• Inefficient process to optimize gas-lift

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Technical Description

• Constant Gas-Lift Injection Rate
• Real Time Wellhead Surveillance
• Optimization Well Tests
• Data to Desktop

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Field Criteria

• Proper gas-lift equipment
• Inadequate data gathering from wells
• Need to decrease operating costs

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Method

• New hardware on
• Wellhead
• Gas-Lift Header
• Test Separator
• Computer hardware and software

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Costs
Production Increase (BOEPD) Pay-Out (40/BOE) (Days)
50 430
150 144
250 86
350 62
450 48
550 40

• Total Cost 860,000

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Qualifications

• Internship with UNOCAL at SS 208
• Production Engineering course on gas-lift

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Conclusion

• Similar field success
• Next step
• Questions