Short Pipelines or Type A Gathering Pipelines in Midstream
CLOUD BASED LEAK DETECTION TECHNOLOGY
Vanmok developed an Innovative Approach for Rupture/Leak Detection on Short Pipelines using only pressure transmitters.
Our technology provides a cost-effective solution for notification and identification of ruptures of 5% or greater within 15 minutes, relying solely on pressure transmitter data. This eliminates the need for SCADA and flow meters, making compliance with the new rule easier and more efficient.
*[DOCKET NO. PHMSA-2013-0255 Amdt. Nos. 192-130 195-105 ] [Document Number: 2022-07133 CFR: 49 CFR 192 49 CFR 195]
**PHMSA initially suggested 10 minutes time limit but after receiving the comments, decided not to include it in the final rule.
In liquid pipelines, this is considered a detriment to pipe integrity and operations if the system has not been designed to control and manage Column Separation occurrence. Generally, pipeline operators detect the occurrence of column separation by inference.
It may be inferred from dedicated pressure measurements at high elevation points, or through calculations made by a Computation Pipeline Monitoring system (CPM).
Pipeline operators rely on the accuracy of CPMs to make decisions on column separation and to avoid the masking of a leak during column separation. Vanmok has developed ColumnFinder® to accurately predict column separation for all the possible scenarios that may cause it to occur in liquid hydrocarbon transportation pipelines.
Column Finder monitors the hydraulic state of the system and calculates the times at which any point in the pipeline undergoes a pressure drop that reaches vapor pressure.
Once this inception moment is calculated anywhere in the system, the ColumnFinder® keeps monitoring the hydraulics of the system by adding the simultaneous solution of the conservation laws of mass and momentum and energy for the formed vapor phase, along with the similar governing equations for the liquid phase. This approach guarantees the correct capture of the evolution of the column separation on top of the captured inception
Customer: “How can we implement leak detection that is cost effective, SCADA independent, scalable on large number of short lines to meet PHMSA new final rule that requires >10% leaks detected within 15 minutes? ”
Relies on pressure transmitter data only.
Dedicated Vanmok loT gateway scans data at 50 milli seconds and communicates to Cloud through cellular network (LTE-M or LTE-4G)
Built-in Vanmok A.I analyses all alarms and validates before alerting the operators.
Low power Vamok Gateways are supplied with integrated solar system to work offgrid.
Notifies and identifies leaks from 5% or greater within 15 minutes using only pressure transmitters.
Eliminates the need to modify existing piping to install flowmeters, saving expenses on both piping modifications and flowmeters.