Extraction Loss (produced fluids)

Understanding Extraction Loss: The Missing Pieces in Produced Fluids

In the world of oil and gas production, maximizing the volume of extracted fluids is a constant pursuit. However, the journey from reservoir to processing plant isn't always smooth. Along the way, certain components can be removed, leading to a decrease in the overall volume – a phenomenon known as Extraction Loss.

What is Extraction Loss?

Extraction Loss refers to the loss of volume experienced in produced fluids during processing. This loss arises from the removal of specific components, such as gases or liquids, which are either:

• Naturally occurring in the reservoir (e.g., dissolved gases)
• Added during production (e.g., injected water)

Key Components Contributing to Extraction Loss:

• Dissolved Gases: Gases like methane, ethane, and propane naturally dissolved in oil or water can be liberated during processing, leading to a volume reduction.
• Free Gas: Gas not dissolved in the oil or water can also be separated during processing, contributing to the overall extraction loss.
• Water: Injected water used for enhanced oil recovery can be separated from the produced fluids, contributing to the volume decrease.
• Other Components: In some cases, specific processing techniques might remove other components, like sulfur compounds or heavy hydrocarbons, further contributing to the extraction loss.

Impact of Extraction Loss:

• Reduced Revenue: Lower volumes mean lower revenue from the sale of produced fluids.
• Production Optimization: Understanding extraction loss is crucial for accurately assessing well performance and optimizing production strategies.
• Reservoir Management: Extraction loss data can provide insights into reservoir behavior, aiding in effective reservoir management and future production plans.

Measuring and Minimizing Extraction Loss:

• Accurate Measurement: Precise measurement of produced fluids at various stages (reservoir, wellhead, processing plant) is essential to quantify extraction loss.
• Optimization Techniques: Implementing techniques to reduce gas liberation, optimize water separation, and improve processing efficiency can help minimize extraction loss.
• Data Analysis: Analyzing extraction loss data helps identify the source of the loss and inform strategies for its reduction.

Conclusion:

Extraction loss is a critical factor in oil and gas production, affecting revenue, production optimization, and reservoir management. By understanding the causes, impact, and measurement of extraction loss, industry professionals can make informed decisions to minimize this loss and optimize the profitability of their operations.