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Determine liquid flow rate and water cut at any time

The PCL production composite log service—a real-time production flow rate analysis service—is an interpretation service for electric submersible pumps (ESPs), providing high-frequency liquid flow rate and water-cut calculations. Available for any brand of ESP, the service is especially useful for wells requiring back allocation or reservoir pressure monitoring and wells with intermittent production. With a dedicated team to analyze and interpret data, historical logs, and regular updates, this service monitors well performance for the life of the ESP.

Once calibrated, the proprietary flow rate calculation algorithm is valid at any point on the pump curve. This helps to optimize testing costs by reducing the required frequency of physical testing. The liquid rate can be calculated even in the presence of phase segregation during startup and slugging, which is typically caused by high gas volume fraction (GVF).

PCL Production Composite Log Service Full Width
ESP data is transmitted to the PCL service engine, which generates flow rates that form the basis of reservoir performance measurements that operators can use to improve well and field performance.
PCL Production Composite Log Service Full Width
Production Flow Rate Analysis

Monitor reservoir and inflow performance in challenging conditions

In waterfloods, calculated water cut can be used to estimate incremental reserves for each well, and reservoir pressure can be monitored without buildup, even on low-mobility wells with long transients and intermittent production. Reservoir flow regimes can also be identified on wells with rapidly changing flow rate and pressure, such as unconventional wells.

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Case Study Remote ESP Optimization Reduces Power Consumption by 28% and 34% in Two Iraq Wells

PCL and Lift IQ services overcome lack of well test data from remote wellsites.
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Tech Paper Increasing Production With High-Frequency and High-Resolution Flow Rate Measurements from ESPs

To arrest production decline without infill drilling, one must maximize production from existing wells, typically by identifying wells with skin and increasing drawdowns on wells with good pressure support or lower water cut. This paper examines how high-frequency, high-resolution flow rate measurements on ESP wells can identify such opportunities without the need for buildups which cause production deferment.

Product Sheet PCL Production Composite Log Service

Improves well production and ESP run life.
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Tech Paper Testing the Untestable: Delivering Flowrate Measurements with High Accuracy on a Remote ESP Well

Novel use of gauge data for obtaining accurate liquid rate and water cut trends for a well equipped with an ESP in a remote desert location.
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Tech Paper Providing Accurate ESP Flow Rate Measurement in the Absence of a Test Separator

Where well rates are outside the range of the test separator, operators usually have no choice but to estimate well production using back allocation techniques, which rarely capture the variance in flow rate over time. This was the case of a well in the Thistle field in the UK sector of the North Sea, where high-frequency flow rate was accurately calculated using ESP real-time data, which was instrumental in measuring inflow properties.
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Tech Paper ESP Real-Time Data Enables Well Testing with High Frequency, High Resolution, and High Repeatability in an Unconventional Well

Testing of shale oil wells equipped with electric submersible pumps (ESPs) is particularly challenging because both rates and pressures decline rapidly and continuously, which is aggravated by rising gas-liquid ratios (GLR) and intermittent production, which means that wells are often in transient condition.

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