Metering Skids

Custody Transfer Metering Skid: Accurate Measurement for Financial Transactions

A custody transfer metering skid is a pre-engineered and pre-assembled unit specifically designed for the accurate measurement of fluids or gases during financial transactions. These skids are crucial for applications where the flow rate determines the buying or selling price of the product being transferred.

Key Features:

· High Accuracy: Custody transfer skids prioritize high accuracy, typically achieving ±0.5% to ±1% of reading or better. This ensures fair and precise measurement for both parties involved in the transaction.

· Compliance with Standards: Skids are designed and built to comply with industry standards and regulations set by organizations like API (American Petroleum Institute) or AGA (American Gas Association) for custody transfer applications.

· Complete Measurement System: Integrates all necessary components for accurate measurement, including flow meter, temperature sensor, pressure transmitter, flow computer, and control valves.

· Data Acquisition and Recording: Skids often have data acquisition systems that record flow data, temperature, pressure, and other parameters for verification and potential disputes.

· Security Features (Optional): Some skids incorporate tamper-evident seals or other security measures to ensure data integrity and prevent unauthorized modifications.

Typical Components:

· Flow Meter: The heart of the skid, chosen for high accuracy and compliance with relevant custody transfer standards. Common types include:

o Positive Displacement (PD) Meters: Accurate for various fluids, good repeatability (common for liquids).

o Coriolis Mass Flow Meters: High accuracy for various fluids and gases, measures mass flow rate directly.

o Ultrasonic Flow Meters: Non-invasive option for clean liquids and gases (less common for custody transfer due to potential accuracy limitations).

· Temperature Sensor: Measures fluid or gas temperature for accurate volume or mass flow rate calculations.

· Pressure Transmitter: Measures pressure for flow rate calculations and potential leak detection.

· Flow Computer: Processes data from the flow meter, temperature sensor, and pressure transmitter to calculate the volume or mass of fluid/gas transferred according to relevant standards.

· Control Valves (Optional): Used for flow regulation or diverting streams during the transfer process.

· Piping and Instrumentation: High-quality piping with proper valves, gauges, and safety features.

· Skid Structure: A sturdy, weatherproof steel frame that houses and protects all the components.

Applications:

· Oil and Gas Production: Measuring crude oil, refined products, and natural gas for custody transfer between producers, transporters, and refiners.

· Chemical Transportation: Accurate measurement of chemicals during loading and unloading for bulk sales.

· Liquefied Petroleum Gas (LPG) Transfer: Ensuring precise measurement of LPG during transfers between terminals and distributors.

Benefits:

· Accurate and Reliable Measurement: Minimizes financial discrepancies in custody transfer transactions.

· Compliance with Standards: Provides peace of mind for all parties involved, meeting industry regulations.

· Complete System Integration: Offers a one-stop solution for accurate flow measurement.

· Data Recording and Security: Enables verification and protects against data manipulation.

FLOW METERING SKID For Custody Transfer Application, using P.D. Meter, Turbine Meter, Vortex Meter, Magnetic Meter, and Multi-Path Ultrasonic Flow Meter. Engineering, Design of Metering Skid Assembly, testing Installation, commissioning & Start-up Flow Metering Packages Soham Automation provides total solution for the custody transfer fiscal metering packages for oil and gas industries. Our turnkey solution in this field ranges from design, engineering, procurement, construction, installation and commissioning. Our success in the field is achieved by our understanding the need and importance of the subject and by being one of the few independent measurement integrators allow as to select the optimum cost effective solution for the application. Metering Skids We have integrated metering skids with different types of flow meters like PD meter, Turbine meters, Orifice meters, Carioles meters, Ultrasonic meters etc with different type of master meters and provers for metering proving. Our range of metering skid ranges from 3” line to 48” lines so far, and are capable of doing bigger sizes. Our experts can chose and size different types of flow meters for any application and design the best suited solution based on customer provided information on process conditions and data. Our team of experts in this field can chose different instrument and equipment (like motorized valves, strainers, control valves, piping materials, pressure and temperature instruments, electrical item etc) required for the metering skid package. We do mechanical design and calculations, P & ID, E & I design and installation, fabrication all required for complete metering skid integration. Main Markets The main markets for the metering systems are oil & gas applications, which include : Production Oil Depots Refineries Supervision of depots Transportation Distribution Gas Productionprocess units

A gas flowmetering skid is a pre-engineered and pre-assembled unit designed to measure the flow rate and other properties of natural gas or other industrial gases. It typically houses all the necessary components for accurate and reliable gas flow measurement within a compact, modular package. Here's a breakdown of the key details and specifications to consider:

Components:

· Flow Meter: The heart of the skid, responsible for measuring the gas flow rate. Common types include:

o Positive Displacement (PD) Meters: Accurate for various gases, good repeatability.

o Coriolis Mass Flow Meters: High accuracy for various gases, measures mass flow rate directly.

o Ultrasonic Flow Meters: Non-invasive, handles gases with entrained particles.

o Turbine Flow Meters: Suitable for clean, less dense gases. (Selection depends on gas type, accuracy requirements, and other factors)

· Pressure Regulators: Maintain a constant pressure at the flow meter for accurate measurement.

· Temperature Sensor: Measures gas temperature for flow rate correction and additional calculations (often integrated with the flow meter).

· Pressure Transmitters: Convert gas pressure into an electrical signal for monitoring and recording.

· Flow Computer (Optional): Calculates gas volume or mass flow rate based on meter readings, temperature, and pressure data. May also provide additional features like data logging and alarming.

· Isolation Valves: Allow isolating the flowmeter for maintenance or calibration without interrupting the main gas flow.

· Filters: Remove impurities from the gas stream to protect the flow meter and other instruments.

· Piping and Instrumentation: Connecting all components with proper valves, gauges, and safety features.

· Skid Structure: A sturdy frame that houses and protects all the components, often made from weatherproof steel.

Specifications:

· Gas Type: The specific gas the skid is designed to measure (e.g., natural gas, compressed air, nitrogen).

· Flow Rate Range: The range of flow rates the skid can accurately measure.

· Accuracy: Expressed as a percentage of reading (% of reading) or reading plus/minus a fixed value. Typical accuracy for good quality skids is ±0.5% to ±2% of reading.

· Pressure Rating: The maximum pressure the skid and its components can withstand.

· Temperature Rating: The range of temperatures the skid can function within.

· Output Signal: The electrical signal generated by the skid, typically a 4-20mA current loop or 0-10V voltage signal representing flow rate or other parameters.

· Control System (Optional): Skids can be integrated with a control system for remote monitoring, data logging, and control of valves or other equipment.

· Safety Features: Skids typically include pressure relief valves, leak detection systems, and other safety features to ensure safe operation.

Benefits of Gas Flowmetering Skids:

· Pre-engineered and Pre-assembled: Saves time and engineering costs compared to building a system from scratch.

· Compact and Modular: Easy to transport, install, and commission.

· Accurate Measurement: Provides reliable flow rate data for custody transfer, process control, and optimization.

· Weatherproof and Rugged: Designed for harsh outdoor environments.

· Safety Features: Offers built-in safety measures for personnel and equipment protection.

An oil flow metering skid is a pre-engineered and assembled unit designed to precisely measure the flow rate and other properties of crude oil or refined petroleum products. Similar to gas flow metering skids, they offer a compact, modular solution for accurate and reliable oil flow measurement in various industrial applications.

Components:

· Flow Meter: The heart of the skid, responsible for measuring oil flow rate. Common types include:

o Positive Displacement (PD) Meters: Accurate for various oil viscosities, good repeatability.

o Coriolis Mass Flow Meters: High accuracy, measures mass flow rate directly, suitable for various oil types.

o Turbine Flow Meters: Suitable for cleaner, less viscous oils. (Selection depends on oil type, accuracy requirements, and other factors)

· Strainers: Remove larger particles from the oil stream to protect the flow meter and other instruments.

· Temperature Sensor: Measures oil temperature for flow rate correction and density calculations.

· Pressure Transmitters: Convert oil pressure into an electrical signal for monitoring and recording.

· Flow Computer (Optional): Calculates oil volume or mass flow rate based on meter readings, temperature, and pressure data. May also provide data logging and alarming functionalities.

· Isolation Valves: Allow isolating the flowmeter for maintenance or calibration without interrupting the main oil flow.

· Control Valves (Optional): Used for flow regulation or diverting oil streams within a process.

· Piping and Instrumentation: Connecting all components with proper valves, gauges, and safety features.

· Skid Structure: A sturdy frame that houses and protects all the components, often made from weatherproof steel.

Specifications:

· Oil Type: The specific oil the skid is designed for (e.g., crude oil, diesel, gasoline).

· Flow Rate Range: The range of flow rates the skid can accurately measure.

· Accuracy: Expressed as a percentage of reading (% of reading) or reading plus/minus a fixed value. Typical accuracy for good quality skids is ±0.5% to ±2% of reading.

· Pressure Rating: The maximum pressure the skid and its components can withstand.

· Temperature Rating: The range of temperatures the skid can function within, considering both ambient and oil temperature.

· Output Signal: The electrical signal generated by the skid, typically a 4-20mA current loop or 0-10V voltage signal representing flow rate or other parameters.

· Control System (Optional): Skids can be integrated with a control system for remote monitoring, data logging, and control of valves or other equipment.

· Safety Features: Skids typically include pressure relief valves, leak detection systems, and other safety features to ensure safe operation, especially for flammable liquids like oil.

Benefits of Oil Flow metering Skids:

· Pre-engineered and Packaged: Saves time and engineering costs compared to building a system from scratch.

· Compact and Modular Design: Easy to transport, install, and commission.

· Accurate Measurement: Provides reliable flow rate data for custody transfer, process control, and optimization.

· Weatherproof and Rugged: Designed for harsh outdoor environments.

· Safety Features: Offers built-in safety measures for personnel and equipment protection.

Applications of Oil Flow metering Skids:

· Oil Production and Transportation: Measuring flow rates for custody transfer, pipeline monitoring, and production allocation.

· Oil Refining: Monitoring and controlling oil flow rates within various refinery processes.

· Fuel Oil Delivery: Metering fuel oil for industrial or commercial applications.

· Petrochemical Plants: Measuring flow rates of various oil products within petrochemical processes.

· Tank Farms: Monitoring oil inventory levels and transfer operations.

By understanding these details and specifications, you can select an oil flowmetering skid that meets your specific needs for accurate and reliable oil flow measurement in your industrial application.