At G&C Optimization, we know that a Lease Automatic Custody Transfer (LACT) unit is the oilfield cash register, automating crude oil sales. Understanding its core components isn’t just a technical exercise; it’s fundamental to ensure accuracy, compliance, and profitability. Each part plays a critical role in the seamless, precise operation of the entire system.
Anatomy of a LACT Unit: A Component-by-Component Breakdown for Accurate Measurement
Anatomy of a LACT Unit: A Component-by-Component Breakdown for Accurate Measurement
The Heart of the System: The Charge Pump
The process begins with the charge pump, the heart of the LACT unit. Its primary function is to pull crude oil from the storage tanks and provide a consistent, non-pulsating flow through the system. This steady pressure is essential for the downstream components, particularly the meter, to measure the volume with maximum accuracy and repeatability.
Ensuring Product Quality: The BS&W Monitor
Before the oil can be sold, its quality must be verified. The Basic Sediment and Water (BS&W) monitor, often called an S&W probe, is the unit’s quality control expert. It continuously analyzes the oil stream for contaminants. If the water content exceeds a preset limit, it signals a divert valve to reroute the off-spec product.
The Cash Register: The Meter
This is where the transaction happens. The meter, typically a Positive Displacement or Coriolis type, is the most critical of all LACT unit components for revenue. It measures the exact volume of oil passing through the unit for sale. Its accuracy is paramount, as even small errors can lead to significant financial discrepancies over time.
The Brains of the Operation: The Control Panel
The entire process is automated and monitored by the control panel, which houses the Programmable Logic Controller (PLC). This is the brain of the LACT unit. It interprets signals from the BS&W monitor, records volume from the meter, controls the divert valve, and communicates all data, ensuring the unit operates reliably and without constant manual oversight.
A well-engineered LACT unit is more than the sum of its parts; it’s an integrated system designed for precision. As expert LACT skid manufacturers, we ensure every component works in harmony. At G&C Optimization, we build systems to the highest standards to protect your assets and guarantee reliable, accurate measurement when it matters most. Get in touch with us today to get started!