Distributed Automation Systems Provide Information and Support to Decision

2004 ◽  
Author(s):  
Rafael Noac Feldman
Keyword(s):  
Oil And Gas ◽  
Data Transfer ◽  
Detection System ◽  
Quality Data ◽  
Automation System ◽  
Digital Information ◽  
Process Data ◽  
Control Center ◽  
Supervisory System ◽  
Automation Systems

Transpetro — the transportation division of Petrobras — operates approximately 10.000 kilometers of pipelines and 43 oil terminals. It is the main oil and gas logistic company in Brazil and one of the top companies in Latin America. This work presents a concise description of Transpetro’s project to integrate these distributed sites. Most of the pipelines are remotely operated by the Operational Control Center (OCC), located in Rio de Janeiro, but there are also a number of pipelines and specific operations that are under the responsibility of the terminals, and these operations are called “distributed operations”. These operations include pump and compressors control, valves alignment, products quality monitoring, and even some pipelines control not integrated to the OCC yet, such as the ones that are used to deliver final products to the distribution companies. Each of the Terminals has, or is receiving, an automation system including instrumentation, programmable logic controllers, communication and supervisory systems. Pressure, density, flow and level are some of the variables collected by the automation system and made available to the terminal operator. The system also allows the remote control of valves, bombs, compressors and other equipment. All this information gathered by the automation system becomes digitally available on the level of the terminals supervisory systems, which in Transpetro are mainly based on Intellution iFIX and Telvent OASyS. Therefore, other systems can access the supervisory systems and use its digital information for the benefit of the company. On the Operational side, there are some specialist systems that refine and sophisticate the level of information available in the supervisory system. One of these is the Leak Detection System, which interfaces with the supervisory system using data transfer protocols such as DDE and OPC, receiving the process data and applying a computational model that allows the operator to identify a potential leak. In a Logistic Company such as Transpetro, it is important to keep all the information concerned to storage (in tanks or pipelines), both current and scheduled operations, in a set of systems functioning in an integrated way. One of these systems is the homemade one called BDEMQ (Storage, Transportation and Quality Data Base). Transpetro is now implementing the interface between the automation systems and BDEMQ in all terminals. The technology used is a C and Java language-based interface through an Ethernet TCP/IP network. Hence, once Transpetro has all the data digitalized in its terminals’ automation systems, it is possible to improve the level of control and information, increasing the support to the operators’ and managers’ decision taking processes.

The Design of Power Security Defense System Based on Resource Pool Cloud Computing Technology

2020 ◽  
Vol 11 (1) ◽  
pp. 1-11
Author(s):  
Dang Nan
Keyword(s):  
Cloud Computing ◽  
System Analysis ◽  
Data Transfer ◽  
Automation System ◽  
Distributed Resources ◽  
Detection Technology ◽  
Automation Systems ◽  
Node Network ◽  
Node Protection ◽  
Power Dispatching Automation

In order to realize the power system defense security, this article puts forward the idea and method of constructing power dispatching automation systems with a cloud computing architecture and realizes the unified management of distributed resources with server virtualization technology. Real-time online migration of each module of the scheduling system is realized by using the in-memory data transfer technology. The multi-node network heartbeat detection technology is used to realize the complete monitoring of the server cluster. In the form of an independent disk array, the fault node is removed, and the service is restored automatically. The whole disaster reserve of the system is realized by means of remote resource mapping. System analysis results show that compared with traditional architecture, the service interruption probability of the new scheduling automation system is effectively reduced. Fault redundancy capacity in the station is increased from a key module 2 node to multi-node protection of all modules.

Field Testing of OSBRA 964 km Pipeline Leak Detection System

2006 ◽  
Author(s):  
Ma´rcio Manha˜es G. de Almeida ◽  
Andre P. Kotchetkoff Neto ◽  
Adilson S. Mendonc¸a ◽  
Ricardo R. Alvarez ◽  
Marcello P. Castro
Keyword(s):  
System Performance ◽  
Detection System ◽  
Field Testing ◽  
Leak Detection ◽  
Liquid Hydrocarbon ◽  
Diesel Oil ◽  
Quality Data ◽  
Simple Task ◽  
Control Center ◽  
Tank Farm

OSBRA is the 964 Km pipeline which supplies over 6.000.000 m3/year of gasoline, diesel oil and LPG to Brazil Mid-West region. Products on OSBRA pipeline are pumped on 24 hours a day and 365 days a year scheduled basis from Planalto Paulista Refinary – REPLAN to 5 midsize cities through 6 remote operated pumping stations located along the pipeline. OSBRA pipeline operation including pumping, valve operation and tank farm monitoring are done remotely from PETROBRAS Transporte S/A – TRANSPETRO Pipeline Control Center - CCO. A real time leak detection system (LDS) was supplied and installed at this Pipeline Control Center. The LDS is based on measurements of flow, pressure and density as well as pump and valve status along the pipeline. A SCADA was implemented and field instrumentation measurements were observed in order to provide good quality data for the pipeline operation and its LDS. Assembling of some field instruments were improved in order to correct measurement fails. On-desk simulations were done in order to verify theoretical system performance and operation team was trained to use the leak detection tool. A field controlled leak simulation test was done in order to validate and verify the System performance. This apparently simple task demanded around 1 year for planning and implementation before test was done. The approach of this report is mainly operational and shows how the OSBRA LDS test was planned, programmed, commissioned and performed. Coordination and integration of Operation, Maintenance, Pipeline, Engineering, Safety, Telecommunication and Logistic teams are demonstrated in order to get good results. Field activities like designing and assembling of spools and instrumentations necessary to execute a controlled pipeline liquid hydrocarbon take off are showed. Safety and environmental precautions to avoid equipment damage, uncontrolled operation or product leak to environment are demonstrated.

POSSIBILITES OF COMMUNICATION ENHANCEMENT FOR EXPERIMENTAL PRODUCTION SYSTEM

2018 ◽  
pp. 173-179 ◽  
Author(s):  
Rakay Robert ◽  
Visnovsky Martin ◽  
Galajdova Alena ◽  
Simsik Dusan
Keyword(s):  
Production System ◽  
Data Transfer ◽  
Communication Protocols ◽  
Experimental System ◽  
Automation System ◽  
Experimental Production ◽  
Wireless Data ◽  
Communication Interface ◽  
Automation Systems ◽  
Automation Control

Urgency of the research. Modern trends in the industrial communication focus on implementation of new communication protocols, wireless data transfer at reduced costs. Communication part of every automation system is crucial and reliability of these systems is very important. Target setting. When designing automation systems and solving connection of different devices, developers have to solve the various aspects as addressing, data rates, data security, etc. The modern Ethernet based communication protocols and data transfer technologies provide significant cost and work reduction. Actual scientific researches and issues analysis. To prepare this paper, different publicly available datasheets and experimental solutions were analyzed as well as conclusions of our previous experiments were used to create the knowledge base about this research topic. Uninvestigated parts of general matters defining. Since there are many different communication solutions, wired and wireless too, and every manufacturer of industrial devices provides its own best solution for communication there is large amount of solutions. This paper is insufficient to describe them all. The research objective. In this article, different communication and connection technologies were analyzed for future im-plementation to an existing experimental production system at the Department of Automation, Control and Human-Machine Interactions. The statement of basic materials. To integrate an existing model of industrial production system to the concept of the Industry 4.0 it is necessary to implement the newest communication technologies. Using Ethernet-based communication protocol, such as Profinet with combination of IO-Link provides good basis to solve this issue. Conclusions. The proposed paper provides possibilities of extending the communication interface for the FMS-500 experimental system. This system is currently based on programmable controllers S7-300 and the PROFIBUS communication inter-face. The planned rebuilding of the assembly system involves the exchange of programmable controllers, the expansion of communication protocols and the integration of new functionalities.

scholarly journals Architecture For Automation System Metrics Collection, Visualization and Data Engineering – HAMK Sheet Metal Center Building Automation Case Study

2019 ◽  
Vol 9 (1) ◽  
pp. 561-570
Author(s):  
Khoa Dang ◽  
Igor Trotskii
Keyword(s):  
System Integration ◽  
Data Analytics ◽  
Building Energy ◽  
Facility Management ◽  
Automation System ◽  
Building Energy Efficiency ◽  
Building Automation ◽  
Automation Systems ◽  
Integration Data

AbstractEver growing building energy consumption requires advanced automation and monitoring solutions in order to improve building energy efficiency. Furthermore, aggregation of building automation data, similarly to industrial scenarios allows for condition monitoring and fault diagnostics of the Heating, Ventilations and Air Conditioning (HVAC) system. For existing buildings, the commissioned SCADA solutions provide historical trends, alarms management and setpoint curve adjustments, which are essential features for facility management personnel. The development in Internet of Things (IoT) and Industry 4.0, as well as software microservices enables higher system integration, data analytics and rich visualization to be integrated into the existing infrastructure. This paper presents the implementation of a technology stack, which can be used as a framework for improving existing and new building automation systems by increasing interconnection and integrating data analytics solutions. The implementation solution is realized and evaluated for a nearly zero energy building, as a case study.

Auto-Tuning Tub-Level Control of Blender in Hydraulic Fracturing

2016 ◽  
Author(s):  
Zheng Chen ◽  
Leslie Cargill ◽  
Brent Naizer
Keyword(s):  
Control System ◽  
Hydraulic Fracturing ◽  
Oil And Gas ◽  
Pi Control ◽  
Automation System ◽  
Control Performance ◽  
Level Control ◽  
Relay Feedback ◽  
System Parameters ◽  
Auto Tuning

Hydraulic fracturing is one of the key technologies for producing shale oil and gas. During hydraulic fracturing, a blender is used to mix sand with water and chemicals to obtain a fluidic mixture that will be pumped down a well to frack rocks. In order to achieve high-quality fracturing during a job, the blender needs to maintain its tub level as well as the density of the fluidic mixture. In this paper, an auto-tuning proportional-integral (PI) control is developed for the blender automation system to maintain the tub level of its fluidic mixture. The control system adopts a single-loop PI with gains that can be auto-tuned during a job. A relay feedback test is conducted for auto-tuning the PI gains online. The auto-tuning PI control has been successfully tested in a blender simulator. Experimental results have shown that the control performance was improved after auto-tuning and that the control system was adaptive to variation in system parameters.

Centrifugal Gas Compressors Energy Optimization Initiatives: A Way to Save Valuable Energy at Upstream Operation

2020 ◽  
Author(s):  
Mohammed Abdo Alwani ◽  
Mohammed Ahmad Soliman
Keyword(s):  
Energy Consumption ◽  
Capital Investment ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
High Energy ◽  
International Standards ◽  
Inlet Temperature ◽  
Process Data ◽  
Saving Energy ◽  
Discharge Pressure

Abstract The objective of this paper is to showcase successful and innovative means and techniques to improve and enhance centrifugal gas compressors (CGCs) performance, using methods to minimize power consumption, with no need for capital investment. These techniques will assure, if effectively followed, considerable reduction of the consumed energy. CGCs are the most widely used equipment in the oil and gas industry to boost gas, mainly hydrocarbons, to satisfy process treatments and pipeline requirements. In addition, CGCs are one of the major energy consumers, and therefore present an exceptional opportunity for saving energy. Focusing on lowering inlet gas temperatures, considering suction throttling of discharge pressure instead of the traditional discharge throttling, will help to reduce energy consumption. In this paper, a detailed analysis of factors aggravate or lead to undesired CGCs performance will be discussed along with solutions to minimize adverse impact. For example, operating the gas compressors at relatively high inlet temperature will result in higher energy consumption. After performing need analysis, results prove that we would save 3-7% of running compressors consumed energy. In addition, during compressor design phase, it was found that most motor driven compressor system uses discharge throttling, which incurs high-energy consumption. Instead, it is recommended to consider suction throttling to control discharge pressure, as will be explained. This paper will focus on a detailed case study in one of the running CGCs in an upstream gas-oil separation plant (GOSP-A). This paper proves the effectiveness of the proposed techniques in reinstating the CGCs in GOSP-A, to ensure better performance and save energy. This innovative technique is based on extensive process data analysis — evaluating operating, design data, related performance curves, and reviewing international standards. It will be illustrated that this type of analysis and techniques is a valuable tool for saving energy, in most cases, at oil and gas industries

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