What is the scope of SAES-Y-501?

SAES-Y-501 governs the design, construction, and installation of dynamic sampling systems and associated equipment used for obtaining representative samples of liquid hydrocarbons in royalty or custody transfer measurement. It applies regardless of the method used to determine the volume, whether it is meters or tank gauging.

Which applications are excluded from SAES-Y-501?

SAES-Y-501 does not apply to sampling applications involving refrigerated propane (covered by Specification A-140) and asphalt. For sampling requirements related to these specific hydrocarbons, the Saudi Aramco Project Management Team (SAPMT) should consult with relevant departments such as P&CSD (Project & Construction Support Department), PID (Process and Control Systems Department), or the Custody Measurement Unit for guidance.

Does SAES-Y-501 cover sampling from tanks?

No, SAES-Y-501 does not cover requirements for sampling from tanks. It specifically focuses on dynamic sampling systems and associated equipment. For sampling from tanks, other standards or procedures may be applicable, and it is essential to refer to the relevant guidelines or instructions.

What are some key considerations in SAES-Y-501?

SAES-Y-501 addresses various aspects related to dynamic sampling, including the design of sampling systems, selection of appropriate equipment, installation requirements, sampling frequency, sample handling procedures, documentation, and quality assurance measures. It aims to ensure that the obtained samples are representative and suitable for accurate measurement during royalty or custody transfer.

Are there any specific regulatory requirements or standards referenced in SAES-Y-501?

SAES-Y-501 establishes the minimum mandatory requirements for dynamic sampling, but it may reference or incorporate other applicable codes, regulations, and standards. It is important to consult the specific edition of SAES-Y-501 and any referenced documents to ensure compliance with all relevant requirements.

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SAES-Y-501 PDF Download

SAES-Y-501

Dynamic Sampling of Hydrocarbon Liquids for Custody Transfers

SAES-Y-501 is a standard that governs the design, construction, and installation of dynamic sampling and associated equipment for obtaining representative samples of liquid hydrocarbons. The purpose of these samples is for royalty or custody transfer measurement.

The standard applies regardless of the method used to determine the volume, whether it is meters or tank gauging.
SAES-Y-501 does not apply to sampling applications involving refrigerated propane (Specification A-140) and asphalt. For sampling requirements related to these hydrocarbons, SAPMT (Saudi Aramco Project Management Team) should consult P&CSD/PID/Custody Measurement Unit for guidance.
The standard does not cover requirements for sampling from tanks.

General Requirements

Here are the general requirements outlined in the SAES-Y-501 standard for sampling systems and associated equipment:

5.1 General

The design of the sampling system and associated equipment should consider the following data:
Type of operation (tank gauging, pipeline, marine loading or unloading transfer)
Fluid properties (specific gravity, viscosity, vapor pressure)
Operating temperature and pressure
System maximum and minimum flow rate
Maximum and minimum parcel (batch) size
Available utilities (electrical power, instrument air)
Pipe inner diameter and line pressure at the sample point
Approved vendors specified in SAES-Y-100 should supply sampling systems and equipment.
Pipe, fittings, and gaskets should be obtained from approved vendors as specified in SAES-L-101.
Valves should be obtained from approved vendors as specified in SAES-L-102.
Instruments and electrical equipment should be obtained from approved vendors as specified in SAES-J-002 and SAES-P-101, respectively.
Walkways, stairways, platforms, and material handling equipment should be provided as per SAES-B-054.

5.2 Environmental Conditions

The equipment should be suitable for installation in the relevant environment specified in SAES-A-112.
It should meet the environmental conditions specified in SAES-J-003.

5.3 Layout

The layout of equipment should allow unencumbered access for operations and maintenance and enable easy removal of equipment.
Ample space should be provided to install or remove the sample extractor from the main piping using any required extraction tool.
Each sampling device should be installed in a single pipe that carries the entire hydrocarbon stream to be transferred, positioned as close as possible to the custody transfer point.
Each sampling device should be located at a point in the main stream where the pressure is sufficient to keep the hydrocarbon in a liquid state and ensure proper operation of the sample extractor. A back pressure control valve downstream of the sampling point may be necessary.
Unless approved otherwise by the Chairman of the Custody Measurement Standards Committee, each sample extractor, fast loop probe, and sample probe should be mounted horizontally.
The inlet of each sample extractor, fast loop probe, or sample probe should be positioned in the center one-third of the pipe and oriented in the upstream direction.
When an automatic sampling system and a manual sampling system or manual sample probe are required, it is advisable to position the manual system or probe immediately downstream of the automatic sampling system extractor or fast loop probe. This arrangement eliminates the need for separate stream conditioning devices for individual sampling devices.
Sample receivers should be located as close as possible to the sample extractor.
The sampling system controller may be located with the sampling system, in a Process Interface Building (PIB), or control room.

These requirements ensure that the sampling systems and associated equipment are designed and installed properly to obtain representative samples of liquid hydrocarbons for royalty or custody transfer measurements.

Piping

Here are the requirements outlined in the SAES-Y-501 standard for piping in sampling systems and associated equipment:

Piping and pressure-containing components (excluding those furnished under 34-SAMSS-525) such as piping associated with a jet mixer or a fast loop should be designed and constructed in accordance with SAES-L-100 and SAES-L-310.
Pipe, fittings, and valves should conform to the requirements of SAES-L-105.
Valves should be furnished in accordance with SAES-L-108.
Tubing should meet the requirements specified in 34-SAMSS-831.
Thermal relief valves should be provided as per the requirements of SAES-L-140.
Vents discharging to a safe location should be installed at high points in the piping to facilitate the removal of trapped air or vapor during initial installation and equipment maintenance.
Provisions should be included for draining the sampling system, fast loop piping, and jet mixer piping, as applicable.
Drain piping should discharge to an oily water sewer or another suitable location for disposal or processing.

These requirements ensure that the piping in the sampling system and associated equipment is designed, constructed, and maintained properly to meet the necessary standards for sampling hydrocarbon liquids.

FAQs about SAES-Y-501 PDF Download

What is the scope of SAES-Y-501?

SAES-Y-501 governs the design, construction, and installation of dynamic sampling systems and associated equipment used for obtaining representative samples of liquid hydrocarbons in royalty or custody transfer measurement. It applies regardless of the method used to determine the volume, whether it is meters or tank gauging.
Which applications are excluded from SAES-Y-501?

SAES-Y-501 does not apply to sampling applications involving refrigerated propane (covered by Specification A-140) and asphalt. For sampling requirements related to these specific hydrocarbons, the Saudi Aramco Project Management Team (SAPMT) should consult with relevant departments such as P&CSD (Project & Construction Support Department), PID (Process and Control Systems Department), or the Custody Measurement Unit for guidance.
Does SAES-Y-501 cover sampling from tanks?

No, SAES-Y-501 does not cover requirements for sampling from tanks. It specifically focuses on dynamic sampling systems and associated equipment. For sampling from tanks, other standards or procedures may be applicable, and it is essential to refer to the relevant guidelines or instructions.
What are some key considerations in SAES-Y-501?

SAES-Y-501 addresses various aspects related to dynamic sampling, including the design of sampling systems, selection of appropriate equipment, installation requirements, sampling frequency, sample handling procedures, documentation, and quality assurance measures. It aims to ensure that the obtained samples are representative and suitable for accurate measurement during royalty or custody transfer.
Are there any specific regulatory requirements or standards referenced in SAES-Y-501?

SAES-Y-501 establishes the minimum mandatory requirements for dynamic sampling, but it may reference or incorporate other applicable codes, regulations, and standards. It is important to consult the specific edition of SAES-Y-501 and any referenced documents to ensure compliance with all relevant requirements.

SAES-Y-501 PDF – Dynamic Sampling of Hydrocarbon Liquids for Custody Transfers