api defines custody transfer
Flow control loops that include a control valve shall have local flow indication. valve bypass valve. Local electronic flow indicators shall meet electrical area classification. Local pneumatic flow indicator shall be a 3-1/2 inch receiver gage. Precise measurement of crude oil, alternative energy fluids, natural gas liquids, and other fluids during custody transfer is critical to the process. It is known that variations in temperature can lead to changes in density and if these are not monitored and adjusted for in the measuring process, they can lead to massive monetary losses in time for both seller and buyer. ters for custody-transfer applications. This report applied to gas applications. It was called AGA-7, and it was reissued in 2006. Prior to that, the AGA published AGA-11 in 2003, a report on the use of Coriolis flowmeters for custody-transfer applications. The move to standardize the use of ultrasonic flowmeters for custody transfer of petroleum liquids, especially for downstream applications. They are used to measure the transfer of fuel and other petroleum liquids from trucks to planes, trains, ships, and also to buildings. The line sizes for these applications are much smaller than for Custody Transfer of Oil & Gas Our in house process engineers will work with you to help determine the optimum Custody Transfer Measuring System for your budget and conditions. Not only do we design & build our Custody Transfer Measuring Systems in-house, but we also provide in-depth testing and onsite startup & commissioning services for our clients. Typical media being transferred with Custody Transfer Measuring Systems includes: gasoline, jet fuel, kerosene, diesel fuels, light crude oil, heavy crude oil, biofuels, naphtha (Sometime called naptha), condensate, NGL, NGL, LNG, LPG, fuel oil, paraffin wax, lubricating oils, petrochemicals, asphalt, tar, bio-diesel, ethanol. But custody transfer is one of the most important applications. Custody transfer occurs when the possession of a fluid, such as oil, gas, water, or steam, changes hands from one owner to another. The owner could, for example, be an oil or gas production company, a pipeline company, or a util-ity company. What typically happens in a custody-transfer flow measurement situ-ation is that one or two custody-transfer flowmeters measure the volume or mass of fluid before the transfer is made, and then another set of flowmeters measures the flow after the transfer. What makes custody transfer unique among flowme-ter applications is that money changes Custody Measuring Systems. PumpingSol designs Custody Measuring Systems to provide a packaged solution to your specific requirements; while meeting industry and government standards such as NIST & API guidelines. If your job calls for a complete skid mounted Custody Measuring System. (PROJECT STANDARDS AND SPECIFICATIONS) Page 5 of 26 Rev: 01 August 2011 PHILOSOPHY General Design, application, and installation of flow instruments for process control application shall comply with API RP 551. More stringent requirements for custody transfer applications are described later. Flow shall be measured with a primary flow element. PumpingSol designs Custody Measuring Systems to provide a solution to your specific requirements, while meeting industry and government standards. PumpingSol designs Custody Measuring Systems to provide a solution to your specific requirements, while meeting industry and government standards. metering, process measurement, flare. and stack gas measurement, district. heating, LNG measurement, and shale. gas measurement. Different flow tech-. nologies are used for these applications. But custody transfer is one of the most. important applications. Custody transfer occurs when the. possession of a fluid, such as oil, gas, water, or steam, changes hands from. one owner to another. The owner could, for example, be an oil or gas production. company, a pipeline company, or a util-. ity company.
Custody transfer occurs when the possession of a fluid, such as oil, gas, water, or steam, changes hands from one owner to another.