April 6, 2012
A petroleum deep water production platform in the Gulf of Mexico is using Pipetech International’s proprietary TP-1 Transient Pressure Monitoring System to enhance operational safety by improving their ability to control and monitor internal pressures. Safety is paramount to the offshore industry, and they continue to search for the best ways to control hydraulic pressures. One producer engaged the services of Pipe Tech Inc. of Mandeville, Louisiana, to provide engineering services, who recommended the incorporation of the TP-1 Transient Pressure Monitoring System into the platform operation to provide the
most definitive information available today on hydraulic pressures.
Pipe Tech’s Frank Smith reviewed several months of data that the TP-1 system recorded on the platform, including maximum pressure spikes having a duration of 1/8th of a second, and was able to determine they were caused by check-valve closures ollowing electrical power outage at the high pressure pumps. With this data, computer surge models were calibrated and suppression devices were designed to eliminate these damaging pressures and the hazard they represent.
The TP-1 Transient Pressure Monitoring System, introduced by Pipetech International of Carefree, Arizona, in 2005, is specifically designed to continuously monitor pressure in a pipeline, and to detect and record detailed information about transient pressures that occur. Like conventional data loggers the TP-1 can continuously record steady state pressure at any pre-programmed interval, however it has two major distinguishing features:
- the ability to instantly detect a pressure transient and begin recording pressure
data at up to 100 times per second during transient conditions. This second
level of high-speed data collection allows the detection of pressure spikes
that could have otherwise gone undetected, or might have been recorded in
insufficient detail. Once the pressure
stabilizes the TP-1 returns to its slower, steady state pressure recording
- the integrated GPS receiver that adds to the diagnostic capabilities of the system
by providing precision time of event detection, and thus synchronizing multiple
installations of the TP-1 system at different test sites.
The TP-1 Transient Pressure Monitoring System permits a more systematic and intensive pressure monitoring; such as troubleshooting pipeline problems, validating hydraulic models, evaluating transient pressure mitigation measures, acceptance testing of new facilities, routine asset management, and satisfaction of regulatory requirements.
Pipetech International’s Will Worthington continues to work with offshore producers to optimize and interpret the results of the TP testing, and to look for ways to better serve the petroleum customers. His goal is to incorporate cutting edge technology into pressure monitoring systems that will substantially enhance safety and become a standard within the petroleum industry.