Lease Automatic Custody Transfer (LACT) Units

Product scope

Lease Automatic Custody Transfer (LACT) Units are presented as a quotation-ready equipment family for automatic measurement, sampling, quality checking and transfer of stabilized crude oil from lease storage into a pipeline or transport system. This page supports technical offer comparison; it does not promise one model, inventory position, measurement performance, regulatory approval or certification. The selected manufacturer and system integrator must confirm the equipment against the process duty, custody contract, site regulations, interface drawings, governing standard editions and signed datasheet.

Selection basis

The main RFQ inputs are normal/minimum/maximum flow, batch size, crude density/API gravity, viscosity, temperature, vapor pressure, water and sediment, allowable pressure drop, pump suction and discharge conditions, meter type and size, accuracy class, proving method, flow computer and calculation standard, temperature/pressure compensation, automatic sampling, BS&W monitoring, divert or reject logic, backpressure valve, strainer, air elimination, control philosophy, hazardous-area class, communications, skid piping class and legal-metrology approvals. Storage, metering and loading equipment cannot be selected from nominal line size or capacity alone. Provide normal, minimum, maximum and upset process cases, fluid analysis, site environmental data, piping and instrumentation diagrams, plot plan, utility schedule, control and shutdown philosophy, legal-metrology jurisdiction, terminal or custody agreement and all mechanical, electrical and civil interfaces. For expansion work, include existing equipment records and measured tie-ins.

Trade and industry context

The cited UN Comtrade record is a broad tank, instrument or handling-equipment export proxy used only to prioritize internationally traded product families. It is not an oilfield-only market size, a search-volume estimate or a shipment claim for this equipment. API references identify relevant storage and measurement practice boundaries; they do not prove that an unnamed supplier is licensed, certified, legally approved or holding stock.

Documents and inspection

Define signed process and mechanical datasheets, calculations, PFDs and P&IDs, general arrangement and tie-in drawings, civil and structural loads, material certificates, welding procedures and NDE, tank or piping tests, instrument calibration, uncertainty budget and proving records where applicable, hazardous-area certificates, functional safety or cause-and-effect tests, FAT/SAT, coating records, certificate of conformity, manuals and spares. Verify the manufacturer, integrator, calibration traceability, certificate scope, local approvals and standard editions before order release.

RFQ checklist

• Equipment family, quantity, capacity/flow and delivery target
• Fluid properties, pressure, temperature and normal/upset cases
• Measurement accuracy, proving, sampling and legal requirements
• Tank, pipe, civil, power, control and hazardous-area interfaces
• Materials, corrosion, inspection, calibration and test records
• Destination, Incoterm, module size, lifting and transport limits
• Target unit or package price and acceptable technical alternatives

Upload the process datasheet, P&ID, site layout, custody or terminal requirements and project specification with the inquiry. Close every process, metrology, safety, interface and regulatory deviation before comparing price or releasing the order.