Schlumberger

NATCO DUAL FREQUENCY Electrostatic Treater

Dehydrator and desalter for upstream crude oil processes

The NATCO DUAL FREQUENCY electrostatic treater uses both AC and DC power to provide significant process improvement, often more than 100%, over conventional AC electrostatic technologies. It uses our proprietary load-responsive controller—the NATCO LRC-II smart interface—and a three-phase high-frequency power unit to generate a customized electrostatic field that can be optimized for any crude oil.

The treater can be delivered as a heater treater, providing heating and dehydration in a single vessel and eliminating the need for an externally heated heat transfer fluid. It can also be provided as a degassing treater, eliminating the need for a separate degasser.

NATCO DUAL FREQUENCY Electrostatic Treater

Cost-effective treatment

The NATCO DUAL FREQUENCY treater reduces capex and opex through its higher treatment capacity, higher tolerance to wet crudes, and increased dehydration performance. Moreover, it allows reduced demulsifier dosage, less washwater usage, and a lower operating temperature.

Improved performance with real-time control

The LRC-II interface improves emulsion resolution via voltage modulation, enabling operation at the optimal voltage for multiple crude feedstocks, while managing upsets more rapidly and effectively. Parameter setup in the treater power unit can be updated from the LRC-II interface in real time, while the unit is operating.

The Hi-Flo distributor improves vessel hydraulics and enhances performance to support higher process capacity.

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Reduced Opex and Increased Throughput at Operating Facility

NATCO DUAL FREQUENCY electrostatic treater case study
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