... discs are usually installed in the pig structure, normally four; their combined effects can be represented by an equivalent gap in the simulation model. Sensitivities have been performed to assess the expected leakage amount. A final field-testing activity was performed to verify and tune the OLGA flow...

... scaled to a high range of 0-800 psig (0.00 - 5515.81 kPag), exceeding the typical maximum operating pressure of approximately 100 psig (689.48 kPag). The test results showed a sensitivity of a 5.00% leak rate detected in 21 minutes and a 10.00% leak rate detected in 14 minutes. Following these leak tests...

... psig 1613 system performance operation pipeline simulation modeling advancement scenario piping simulation measurement and control system intelligence engineer midstream oil & gas pipeline leak detection sensitivity pg&e hydraulic fracturing transmission piping design system...

... different portions of the risk spectrum but no single technology will mitigate all of the risk as illustrated in Figure 1. reliability decision tree pressure wave detection leak detection methodology accuracy sensitivity upstream oil & gas leak detection technology psig 1502 artificial...

... shutdown artificial intelligence pipeline alarming threshold norense okungbowa sensitivity Copyright 2015, Pipeline Simulation Interest Group This paper was prepared for presentation at the PSIG Annual Meeting held in New Orleans, Louisiana, 12 May 15 May 2015. This paper was selected...

... of the CPM design, as well as the need to stress test the CPM over the breadth of operational scenarios to assess the robustness of the CPM, where test coverage includes steady state threshold sensitivity, transient threshold sensitivity and the threshold switching action. This paper reviews the leak...

... Abstract Analysing the leak detection sensitivity for a particular system, or predicting how operational transients influence it, are common challenges for leak detection professionals. An empirical approach can be followed: modeling the pipeline system, including all the inaccuracies due...

... the best available solution and maximum protection of the environment, possible combinations of different technologies are discussed. Future development in leak detection is also addressed. detection production monitoring sensitivity midstream oil & gas leak size location accuracy cable...

... to API RP 1130. midstream oil & gas controller climate change scenario consequence air emission criteria robustness chemical spill leak detection metric information psig 1201 leak detection system leak location accuracy pipeline reliability sensitivity leak performance...

... model for predicting temperature and pressure changes with instrument uncertainties during the shut-in process, followed by application case studies with leak and no leak conditions. The results will be examined with regard to providing recommendations for leak sensitivity. INTRODUCTION The API 1149...

...: Benefits of a model based leak detection system Flexibility of using a model based leak detection system How advanced analysis tools can identify optimum leak detection sensitivity for all operations Procedures for performing a live leak test Problems overcome during the project implementation...

... in volume balance systems. This simplified model predicts that leak alarms associated with small leak sizes will exhibit a probabilistic nature in terms of both sensitivity to real leaks, as well as creation of leak alarms or false positives when no leak is present. Secondly, this paper presents...

... climate change tutorial air emission modeling & simulation deviation upstream oil & gas calculation measurement and control pipeline leak detection spam filtering false alarm midstream oil & gas chemical spill instrumentation sensitivity flow balance balance method pipeline...

... of the transient flow modeling. The application section presents the place of cluster analysis in the transmission planning function at Union Gas and outlines its role in the process of preparing input data for a transient gas flow model. It also illustrates the sensitivity of the transient model capacity...

..., the design of pipeline instrumentation seldom takes leak detection into account. In particular, intuition leads one to believe that the more pressure instrumentation that is installed on a pipeline, the more sensitive leak detection will become. This article will show that in some cases intuition can...

... . . . . . . . . . . . . . . . . . . . . . 12 Results . . . . . . . . . . . . . . . . . . . . . . . . . . Level of Service . . . . . . . . . . . . . . . Flow change sensitivity . . . . . . . . . . . . Exchange sensitivity . . . . . . . . . . . . . 14 14 16 17 Observations . . . . . . . . . . . . . . . . . . . . . . . . Methods of Control...