Leak Detection System Technologies
ALDS is a negative pressure wave pattern-recognition, adaptive, and hydraulic-based wave model leak detection and location system capable of rejecting noise by various hardware, firmware, and software methods. Please keep reading to learn more about leak detection system technologies.
The Acoustic Leak Detection System is designed to detect the occurrence and determine the location of leaks in gas, liquid, and multi-phase flow pipelines. A transient acoustic wave is created at the instant of a break in the pipe wall. This acoustic wave travels at the speed of sound, for that fluid is guided by the pipe's walls in both directions from the source of the break.
The acoustic wave is detected by sensitive acoustic sensors and analyzed by Wave Alert Site Processors situated along the pipeline. After further analysis by the Master Comm, the leak's location is determined from the arrival times of the expansion waves at the sensor locations.
The ALDS system will continue to detect a leak in case of communication fault or loss of communication. After the resumption of communications, the leak event and detecting time from the local processors will be used for leak location calculation by the central processor.
Leak Computer HMI
The central information and data handling unit is the Leak Computer (dedicated PC). It communicates with the MasterCommTM VIII Node Processor and supports SCADA by various hardware, firmware, and software, which provides operator input/output, and produces printed reports and messages.
It provides the quickest leak detection, high sensitivity, precise leak location accuracy, and low false alarm rate with minimum maintenance requirements.
Customer SCADA Interface
The ALDS can provide an interface to an existing customer SCADA system. The existing customer SCADA system can adjust all local and remote operational and tuning parameters. This interface can be provided through the MasterCommTM VIII Node Processor or the ASI Leak Computer.
System Performance
MasterComm Node Processor Compliance With International Standards
ASI fits in the classification of API1130 leak detection methods.
However, our LDS Acoustic based incorporates further unique features which exceed the classification of API 1130 leak detection technologies due to built-in patented advanced features:
Acoustic Leak Detection is not based on flow measurements but instead on detecting unique acoustic signals produced by pipeline leaks. No high-accuracy pressure measurements are required for leak detection. No intensive maintenance.
ASI is an ISO-9001 certified company, full in compliance with design and manufacturing processes
System Recovery from Malfunctions
Communication Failure: During a communication outage, the WaveAlert® Site Processor will automatically store up to 100 events (potential leaks) for 24 hours. Once communications are restored, the GPS time-tagged events are sent to MasterComm for processing.
Power Outage: All critical parameters are stored in non-volatile memory.
Loss of WaveAlert®: If one WaveAlert® Site Processor is offline, WaveAlerts on each side will continue to detect leaks.
Loss of Sensor: For dual sensor WaveAlerts, if one sensor is lost, the WaveAlert will still function with a single sensor.
Field Leak Test Kit
WaveAlert® Batch Tracker
The WaveAlert® Batch Tracker monitors multiproduct pipelines and calculates the location of products inside pipelines.
The WaveAlert® Batch Tracker is a function added to the WaveAlert® ALDS. It requires precise flow data inputs from the pipeline along with density or product information.
WaveAlert® Batch Tracker
Allows for scalable configurations.
Handles multiple equipment types (valves, pumps, tanks, flow meters, etc.).
Provides real-time information on the product location.
Calculates and monitors interface volume between batches.
The WaveAlert® Batch Tracker is fully configurable and works on simple topologies with a small number of pipelines to complex topologies.
WaveTrack® ASI Scraper Tracking System (ASTS)
WaveTrack® is a real-time Scraper Tracking System that accurately detects scraper position and velocity. WaveTrack® consists of hardware and software components: the self-contained acoustic module Acugen®, a low-powered device that installs easily inside the cavity of a pipeline scraper; a WaveTrack® field processor or a WaveAlert® VIII-STS Integrated Leak Detection and Scraper Tracking processor. These local processors report to the WaveTrack Master® central processor as part of the stand-alone ASI Scraper Tracking System (ASTS) or to the integrated MasterComm® VIII-STS central processor to complete the powerful integrated system (ILDSTS). The ILDSTS can deliver the proven ASI leak detection and location functions and accurately detect the scraper speed and location.
WaveTrack® is comprised of five compact modules: the self-recharged battery module, the control module, the Acugen® module, the Self-Release® system, and the suction/release nozzle. All WaveTrack elements come in a practical framework to ensure easy and quick installation inside any commercial pipeline scraper.
RTTM LDS Virtuoso®
Production, pipeline & asset management systems
Wood Group provides robust, real-time online and offline software systems for efficiently managing oil and gas operations.
Virtuoso® is a field-proven suite of software products with more than 20 years of successful track record of performance in the field.
Our technology supports engineering studies, operator training, simulation wells, pipelines, and processing facility operations onshore and offshore. For example, Virtuoso is used to help manage some of the world's key gas resources, supporting 10% of the global consumption of this vital commodity.
Our software products provide essential operational and commercial functionalities based on the unique challenges specific to each customer project. Our technology solutions address the most complex single and multi-phase gathering, production, transportation, and processing issues.
RTTM LDS Virtuoso®
The Virtuoso software suite includes offline
packages such as:
Pipeline Management System Online Applications
Virtuoso/Monitor is an online, real-time, dynamic system in one integrated model for monitoring oil and gas production operations, from subsea wells to topsides equipment. Monitor's functionalities can include:
Monitor's breadth and depth of functionalities make it an essential tool for monitoring production and processing facilities.
Dynamic Simulation Package
Virtuoso/ES (Engineering simulator) is a dynamic simulation package that performs fast transient single and multi-phase simulations of integrated subsea, topsides, and onshore facilities.
ES includes a rich graphical user interface with integrated plotting to eliminate complex files and spreadsheet-based analysis.
With a control emulation function and built-in capability to start from real-time process measurements, ES is a world-leading package for analyzing integrated pipeline networks and processing facilities.
Virtuoso/OTS (Operator training system) features are coupled for realistic, comprehensive operator training.
OTS can interface directly with offline distributed control systems(DCS), supervisory control and data acquisition (SCADA) systems, or emulate operator interfaces. OTS is an effective tool to quickly familiarize new operators with production systems and the overall production system, prepare operators for normal and unusual operating scenarios, and document competency levels.
OTS functionalities include instructor/student workstations, user configuration of training scenarios, automatic recording and documenting of training sessions, and objective scoring of operator performance.
RTTM LDS Virtuoso/LDS (Leak Detection System)
Virtuoso/LDS (Leak detection system) uses robust field-proven simulation technology. Our software supports single and multi-phase operations with rigorous mathematical modeling using the pipeline's mass and pressures transient analysis. LDS also provides a comprehensive, statistical signal trend analysis with a proprietary method. A dynamic leak 'fingerprint' recognition algorithm maximizes sensitivity to leaks, reducing detection time while minimizing false alarms.
Key attributes of the software are:
Fiber Optic Pipeline Monitoring LDS Preventing and Detecting Leaks in Real Time
Get More from a Single System
Detect, locate and classify multiple threats in real-time, along the full extent of your pipeline, with the fiber optic pipeline monitoring system.
Fiber Optic pipeline monitoring system
Working Principle
Fiber Optic sensing system measures the time delay from the transmission of the laser light until the disturbance signal is received.
No signal return is required from the end of the optical fiber.
It emits a laser pulse down a fiber optic cable to measure vibration and temperature. It will also locate the position of the vibration and temperature being measured
Mitigate the Risk of External Pipeline Threats
Pipelines are susceptible to various external threats that can result in significant damage, or worse, a rupture. However, a majority of these incidents can be prevented. In addition to leaks, the Fiber Optic pipeline monitoring system detects the external events that lead to pipeline damage, so you can respond to threats before incidents occur.
Offering third-party interference monitoring and right-of-way detection, our system alerts pipeline operators of potentially hazardous activity occurring within the pipeline corridor, such as digging, vehicle movement, and other large machinery, before contact with the pipe is made. Utilizing the fiber optic network around remote facilities, the system can also detect threats and unwanted activity near above-ground infrastructures, such as block valves, refineries, and pumping/compressor stations.
Protect Pipeline Infrastructure
Sabotage and theft are other threats that can significantly impact pipeline integrity, as well as an operator's bottom line. Protecting pipelines in high-risk areas typically requires a separate leak detection and security monitoring program, but the Fiber Optic pipeline monitoring solution can do both. Integrating leak detection, security monitoring, and theft prevention into a single system, the pipeline monitoring solution provides the sensitivity and reliability required to detect and locate suspicious activity, such as illegal hot taps and vandalism, up to 100km from a single location. With this knowledge, you improve incident reduction and increase the effectiveness of response mechanisms, such as ground patrol and helicopter reconnaissance, by ensuring manual inspection is focused on areas of real activity.
Monitor Seismic Disturbances
Sizeable ground shift and rock fall events can also be detected with the ground movement monitoring application. By recording all activity in the vicinity of a pipeline before and after a large, widespread disturbance, such as an earthquake, engineers can understand the resulting damages and whether asset integrity has been compromised.