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Ensure accurate measurements for quantity and quality in custody transfer for trucks and rail

Safe operations that ensure the protection of assets, personnel and the environment are paramount in the Oil and Gas industry. Equally, streamlining supply chains, increasing throughput, reducing energy and maintenance costs, and minimizing unaccounted losses are vital for a competitive edge. Endress+Hauser flow metering experience and expertise enhance measurement of quantity and quality in loading and unloading, increasing efficiency, optimizing maintenance, and protecting operational safety.

> 15'000 custody installations worldwide in last 10 years

Our loading and unloading metering skids for Oil and Gas, equipped with Endress+Hauser custody transfer certified Promass Coriolis flow meter, comply with and even exceed custody transfer accuracy as per OIML R 117, while providing lower pressure drop, high flow rate capacity and smaller footprint. Maintenance is optimized, with no moving parts, Heartbeat technology for verification according to IEC 61511-1, diagnostics to Namur NE 107, and predictive maintenance features.

How we can help

For all your Oil and Gas custody transfer applications in trucks and railcars, our worldwide network of metering experts is available throughout the asset lifecycle, from front-end engineering design to operations and maintenance.

Adopt the zero-loss approach. Collaborate with Endress+Hauser to define project requirements and process improvements, including site survey, basic design, and scope definition.

Ensure optimal delivery and risk management of your oil and gas plant projects with Endress+Hauser services such as project management, detailed engineering, fabrication, testing, documentation, certification, commissioning and start up.

Sustain effective, efficient operations with our training, validation, re-calibration, and maintenance services.

Manage your assets across their lifecycle via the unique Endress+Hauser Netilion ecosystem.

Simple products

Easy to select, install and operate

Technical excellence

Simplicity

Standard products

Reliable, robust and low-maintenance

Technical excellence

Simplicity

High-end products

Highly functional and convenient

Technical excellence

Simplicity

Specialized products

Designed for demanding applications

Technical excellence

Simplicity

FLEX selections

Technical excellence

Simplicity

What we offer

Endress+Hauser is your one-stop shop for mass-based or volume-based loading and offloading metering skids in oil and gas operations. Bring your plant's liquid transfer operations up to date with the very latest technologies, ensure compliance to local...

Hardware & Software

State-of-the-art Endress+Hauser Coriolis flow meter

Temperature and pressure transmitter and gauges

Fully assembled, certified and tested skid

Batch controller

Air eliminator and strainer (offloading)

Digital control and isolation valves

Truck grounding and...

Services

Application constancy and zero-loss assessment

Site survey and deliverables definition, detailed design and engineering

Procurement and fabrication

Certification and testing

Inspection and FAT, shipping, and logistics

Installation, commissioning, and SAT

...

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Metering skids for loading and unloading in Oil & Gas

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Ensure accurate measurements for quantity and quality in custody transfer for trucks and rail Safe operations that ensure the protection of assets, personnel and the environment are paramount in the Oil and Gas industry. Equally, streamlining supply chains, increasing throughput, reducing energy and maintenance costs, and minimizing unaccounted losses are vital for a competitive edge.

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Rishabh Engineering Services - Quality Engineering Solutions

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Gas Metering Skid - Detailed Engineering, 3D Modeling & Structural Design

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Detailed Engineering, 3D Modeling, Structural Design for Oil & Gas Metering Skid using CADWorx Plant Professional, STAAD Pro, ProSteel, AutoCAD & Navisworks

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July 30, 2019 Welcome

Oil and gas metering or measurement is the phase along the hydrocarbon supply value chain where exploration and production (E&P) efforts turn into profits for operators, investors, and other relevant stakeholders. Hydrocarbon metering is carried out using specialized and high-precision equipment to ensure accuracy.

Get Your LACT Unit Quote

This article will discuss the process of crude and natural gas measurement, some technologies involved, and where to find metering solutions for your oil and gas products.

Oil and Gas Measurement

Oil and gas measurement is the process of quantifying the mass or volume of hydrocarbons produced as the oil & gas is sold to a buyer along the supply chain. In the United States, oil and gas metering usually begins at the wellsite, as mandated by law.

Before custody transfer, the operator will separate oil or natural gas. Entrained solids, water vapor, and other impurities are removed from crude oil before it is quantified and sold. Similarly, water vapor, sulfur, and other contaminants are extracted from natural gas. After cleanup, the oil and gas must meet a certain specification in order to qualify to be sold.

How Is Oil Measured in the Field?

Crude oil is an unrefined mix of hydrocarbon fluid that has been obtained from an oil well. This liquid is primarily what is sold as a commodity. The unit of sale is barrels of crude (BBL) which is equivalent to 42 US gallons. After separating water molecules and sediment from crude, the volume can be ascertained using one of two methods:

For small volumes (1-100 barrels of oil per day), oil measurement is carried out directly from storage tanks in runs. A run is the process of drawing oil drawn from a lease location and transporting it off-site for treatment.

First, we take a sample of crude and place it in a centrifuge for a 'shake-out' test which separates the water molecules and sediments from the mixture. Afterward, the volume of a run is measured by lowering a measuring strap into the storage tank. This device is weighted on one end and contains an outlet valve which opens to discharge fluid into a pipeline or truck nearby. When the storage tank is almost empty, a second measuring strap reading is taken (and the volumes compared) to find the exact volume of oil drawn.

For large volumes (100-100,000 barrels of oil per day), operators typically use an automated measurement system called a LACT unit, which we will be discussing shortly.

Measurement of Natural Gas

Natural gas measurement can be carried out using Orifice meters. Orifice meters help to determine the volumetric flow of natural gas by finding the differential pressure between the upstream and downstream sections of a pipe (orifice) which is partially impeded. The unit of sale for natural gas is thousands of cubic feet (MCF) or British Thermal Units (MMBTU).

Commonly Used Oil and Gas Metering Technology

A wide range of equipment for oil and gas flow measurement is available on the market. Selecting the right equipment will depend on the type of fluid to be metered. Some common examples are:

LACT Units

Lease Automatic Custody Transfer (LACT) units measure the net volume and quality of hydrocarbons during product transfer in midstream oil and gas operations. LACT units are automated systems for measurement, sampling, and transfer of liquid hydrocarbons with volumes ranging from 100 - 1000 barrels/hour between a stock tank and feed line.

Metering Skids

A metering skid is an automated system for measuring crude or natural gas comprising several measurement instruments assembled on a steel frame. They are used to determine financial estimates during custody transfer metering. Metering skids usually consist of several flow meters for metering fluid flow, proving system and a gas chromatograph for analyzing and metering gaseous hydrocarbons.

LACT units and Metering skids from IFS can accurately measure and sample hydrocarbon liquids with viscosities ranging from 2 - 5000 centistokes.

Some ancillary instruments that may be found on a metering skid include Coriolis flow meters, turbine or positive displacement flow meters, densitometer, back pressure and thermal relief valves, air eliminator, prover connections, and PLC control systems.

Let's take a brief look at the two flow meters listed:

Coriolis Flowmeters

A Coriolis flowmeter is a special type of flow meter that measures a mass of fluid based on inertia. The 'Coriolis effect' is a physical phenomenon where inertia created by a mass of fluid flowing through an oscillating tube cause the tube to twist proportionally to mass flowrate. In practice, hydrocarbon liquid or natural gas flows through the inlet tube on a Coriolis flowmeter is vibrated with an actuator that causes turbulence in the fluid to be measured.

Coriolis flowmeters are widely regarded as some of the most accurate metering instruments in the industry. However, these instruments can have a margin of error when the fluid under test contains bubbles.

Turbine or Positive Displacement Flowmeters

Other oil and gas flowmeter types include turbine or positive displacement (PD) flowmeters. These are special oil and gas measurement instruments that determine the volume of fluid flowing through them by repeatedly trapping a quantity of the fluid and releasing it.

Positive displacement flowmeters utilize multiple rotating parts that 'mesh' together like a pair of gears. PD flowmeters can measure the volumetric flow through pipelines for a variety of fluids including water, hydrocarbons, corrosive liquids, etc.

IFS Is a Trusted Partner for All O&G Process Needs

Integrated Flow Solutions is an industry-leading oil and gas skid manufacturer of modular and custom process metering equipment. We offer a range of modular and engineered-to-order LACT units and metering systems for high-precision oil or natural gas measurement.

For more information about our services or to speak with a professional, please contact us online today or call us at 1-800-795-4068.

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Metering and Measurement of Oil and Gas - How It Works | IFS

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July 30, 2019 Welcome Oil and gas metering or measurement is the phase along the hydrocarbon supply value chain where exploration and production (E&P) efforts turn into profits for operators, investors, and other relevant stakeholders. Hydrocarbon metering is carried out using specialized and high-precision equipment to ensure accuracy.

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Photo: Natural Gas Inter/Intrastate Pipelines, Map from EIA
There are approximately 580,000 wells around the United States currently producing oil and gas.

In order to get these energy resources from the wells to end users around the country, infrastructure is required. This is the area of the industry midstream companies fill.

Midstream oil and gas companies construct vast, far-reaching networks of pipelines, storage facilities, compressor stations, and processing equipment to get raw natural gas from the field to the retail and utility markets.

Gas Gathering

First, upstream oil and gas companies drill, complete, and produce a well. Then they separate resources using equipment like separators and heater treaters.

They send the oil to on-site tank batteries, where downstream companies retrieve it for further refining and then retail.

Meanwhile, midstream piping collects natural gas.

The Midstream sector of the oil and gas industry involves three primary areas: gathering, processing, and storage. The first step in the midstream process is gas gathering.

Oil and gas producers are scattered in energy fields throughout producing regions. Midstream companies lay piping from their processing facilities to these producing fields.

These are typically small diameter, low-pressure pipes that connect to larger mainline pipelines and eventually to natural gas processing plants. These lines tie in near the well head. Companies use metering skids to measure the gas as it changes hands from the upstream producer to the midstream company.

Midstream companies use compressor stations along these pipelines, located at intervals of 40-100 miles, to re-compress the gas allowing it to continue downstream to gas refineries.

In order to knock out natural gas liquids (NGLs) gas refineries process the gas. This is the foundational ingredients for petrochemical feedstock, blendstock for gasoline, and a wide array of consumer products.

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Midstream Oil and Gas: How Gas Gathering Works

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Photo: Natural Gas Inter/Intrastate Pipelines, Map from EIA There are approximately 580,000 wells around the United States currently producing oil and gas. In order to get these energy resources from the wells to end users around the country, infrastructure is required. This is the area of the industry midstream companies fill.

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Meter skid system

With its expertise and longstanding wealth of experience in the field, Eiffage Energie Systèmes - MECI custom-build custody transfer meter skid systems.

From design to production and commissioning, we provide turnkey skids for metering gas and/or oil and its derivatives for both offshore and onshore applications:

Designing and building chassis mounted assemblies and measuring ramps

Dynamic volume standards: loops, pistons

Prover or standard meter calibration system

Designing and building digital supervision, management and remote control systems

Pay & Check configuration with redundant signal processing

Monitoring and supervision cabinets

General and detail engineering

Manufacturing: general structure, piping, electricity and instrumentation

Commissioning and training

All types of fluids measured

Natural gas

Industrial gases

Crude oil

Condensates, LPG, LNG

Refined products

Fuels

Non-corrosive chemicals

Biofuel, Biogas, Hydrogen etc ...

Type of gas and liquid metering

Custody transfer, allocation measures

Tax Transactions

Sampling systems

Energy analysis and metering units

Natural gas applications

Exploration and production

LNG terminals

Gas processing sites

Gas pipeline transportation

Underground storage facilities

Liquid applications

Offshore: platforms, FPSO, oil tankers, SBM

Onshore: pipelines, terminals, loading and unloading

Refineries and petrochemical sites

Multi-product metering

Calibration

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Meter skid system With its expertise and longstanding wealth of experience in the field, Eiffage Energie Systèmes - MECI custom-build custody transfer meter skid systems. From design to production and commissioning, we provide turnkey skids for metering gas and/or oil and its derivatives for both offshore and onshore applications: Designing