Remote ops: a new way of delivering traditional field operations

2016 ◽  
Vol 56 (2) ◽  
pp. 572
Author(s):  
Michael Little
Keyword(s):  
Natural Gas ◽  
Real Time ◽  
Joint Venture ◽  
Video Conferencing ◽  
Clean Energy ◽  
Pressure Vessels ◽  
Maximum Efficiency ◽  
High Tech ◽  
Minimal Impact ◽  
Gas Fields

Santos GLNG is a joint venture that supplies clean energy to global markets. The business produces natural gas from Queensland’s coal seams in the Bowen and Surat basins and converts it to liquefied natural gas (LNG) at its new facility on Curtis Island, near Gladstone, prior to export. From its inception, Santos GLNG has been committed to minimal impact and maximum efficiency, with safety before all else. Delivering on this commitment, in the context of a vast geographic footprint, required innovation—a new way of delivering traditional field operations. As a result, Santos GLNG successfully developed a high-tech $10 million operations centre that delivers the ability to centrally monitor the production and progress of its assets in the gas fields in real-time, 24 hours a day, seven days a week. Located in Brisbane (more than 450 km away from the gas fields), the centre comprises 90 large screens, one of the world’s largest touch screens, six simultaneous video conferencing facilities, and 30 km of wiring. Key benefits include: Real-time monitoring of the performance and production of all assets in the field, including compressors, pumps, wells, flow lines, pressure vessels, and pipelines. Remote start-up or shut-down capacity, which ensures facilities operate to the highest standards of production. Virtual collaboration and knowledge sharing across multiple sites and assets through the latest teleconference and video conferencing technology. In 2015, the operations centre successfully took control of a range of newly commissioned assets. Most notably, this included Santos GLNG’s three new major compression hubs, which together at nameplate capacity will be able to process 555 terajoules of gas per day.

THE DEVELOPMENT OF GORGON AREA GAS

2002 ◽  
Vol 42 (2) ◽  
pp. 113
Author(s):  
I.J. Grose
Keyword(s):  
Natural Gas ◽  
Environmental Performance ◽  
Joint Venture ◽  
Unit Cost ◽  
Clean Energy ◽  
North West ◽  
Design Concepts ◽  
The North ◽  
Competitive Prices ◽  
Exxon Mobil

Australia will increasingly need to turn to natural gas to offset declining oil production and meet an expanding global need for clean energy. The Gorgon Development Joint Venture Participants, (ChevronTexaco/Exxon- Mobil/Shell), are poised to develop the significant Gorgon gas reserves located 130 km offshore the North West Australian coast to help fulfil this need.The Gorgon Development has access to extensive proved reserves of 13.8 Tcf and a development plan that can supply gas to a Barrow Island landfall at world competitive prices. Several concepts are being considered for development of the Gorgon reserves.Technology will play a key role, with the extensive use of subsea production facilities and innovative LNG design concepts being considered.The focus is on a design that would have a low unit cost and also provide new benchmarks in safety and environmental performance. The development of the Gorgon reserves could also facilitate the establishment of other gas-based industries in Western Australia and offers the opportunity for new gas-to-liquid (GTL) plants to lead Australia’s transition to a gas-based economy.The Gorgon Development is expected to attract nearly A$4 billion investment for an LNG development and a further A$2 billion for a major industrial gas consumer. Total export income could reach A$2,500 million per year for 30 years.

Geoeconomic Leverage of Natural Gas Resources in the Mediterranean

2019 ◽  
Vol 12 (4) ◽  
pp. 141-155 ◽  
Author(s):  
Ahmed Mahdi
Keyword(s):  
Natural Gas ◽  
Economic Resources ◽  
Tel Aviv ◽  
Economic Influence ◽  
The Mediterranean ◽  
Influence Attempts ◽  
Gas Fields

This article examines the claim that Israel’s natural gas exports from its Mediterranean gas fields will give geopolitical leverage to Tel Aviv over the importing countries. Using the geoeconomic tradition of Klaus Knorr and others who wrote about applying leverage using economic resources to gain geopolitical advantage, it is argued that certain criteria have to be satisfied for economic influence attempts, and that Israel’s gas exports do not satisfy these criteria. They include the importer’s supply vulnerability, the supplier’s demand vulnerability, and the salience of energy as an issue between both countries. Israeli gas exports to Egypt are used as a case study.

Compressor Computerized Performance Monitoring System CPMS

2021 ◽  
Author(s):  
Vadim Goryachikh ◽  
Fahad Alghamdi ◽  
Abdulrahman Takrouni
Keyword(s):  
Natural Gas ◽  
Real Time ◽  
Monitoring System ◽  
Performance Monitoring ◽  
Compressibility Factor ◽  
Background Information ◽  
Monitoring Systems ◽  
Turbo Expander ◽  
Time Calculation ◽  
Performance Deterioration

Abstract Background information Natural gas liquid (NGL) production facilities, typically, utilize turbo-expander-brake compressor (TE) to generate cold for C2+ separation from the natural gas by isentropic expansion of feed stream and use energy absorbed by expansion to compress residue gas. Experience shows that during operational phase TE can exposed to operation outside of design window that may lead to machine integrity loss and consequent impact on production. At the same time, there is a lack of performance indicators that help operator to monitor operating window of the machine and proactively identify performance deterioration. For instance, TE brake compressor side is always equipped with anti-surge protection system, including surge deviation alarms and trip. However, there is often gap in monitoring deviation from stonewall region. At the same time, in some of the designs (2×50% machines) likelihood of running brake compressor in stonewall is high during one machine trip or train start-up, turndown operating modes. Also, typical compressor performance monitoring systems does not have enough dynamic parameters that may indicate machine process process performance deterioration proactively (real-time calculation of actual polytrophic efficiency, absorbed power etc.) and help operator to take action before catastrophic failure occurs. In addition, typical compressor monitoring systems are based on assumed composition and fixed compressibility factor and do not reflect actual compositions variations that may affect machine performance monitoring. To overcome issues highlighted above, Hawiyah NGL (HNGL) team has developed computerized monitoring and advisory system to monitor the performance of turbo-expander-brake compressor, proactively, identify potentially unsafe conditions or performance deterioration and advice operators on taking necessary actions to avoid unscheduled deferment of production. Computerized performance monitoring system has been implemented in HNGL DCS (Yokogawa) and utilized by control room operators on day-to-day basis. Real-time calculation, analysis and outputs produced by performance monitoring system allow operator to understand how current operating condition are far from danger zone. Proactive deviation alarms and guide messages produce by the system in case of deviation help operators to control machine from entering unsafe region. Actual polytrophic efficiency, adsorbed power calculations provide machine condition status and allow identifying long-term performance deterioration trends.

scholarly journals The Development of a Low-Cost Method for Monitoring Methane Leakage from the Subsurface of Natural Gas Fields

Methane ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 24-37
Author(s):  
Muhammad Alfiza Farhan ◽  
Yuichi Sugai ◽  
Nuhindro Priagung Widodo ◽  
Syafrizal Syafrizal
Keyword(s):  
Activated Carbon ◽  
Natural Gas ◽  
Methane Concentration ◽  
Low Cost ◽  
Gas Field ◽  
Methane Leakage ◽  
Wide Scale ◽  
Adsorbed Methane ◽  
In The Beginning ◽  
Gas Fields

The leakage of methane from the subsurface on the coalfield or natural gas field invariably becomes an important issue nowadays. In notable addition, materials such as activated carbon, zeolites, and Porapak have been successfully identified as adsorbents. Those adsorbents could adsorb methane at atmospheric pressure and room temperature. Therefore, in this scholarly study, a new method using adsorbents to detect points of methane leakage that can cover a wide-scale area was developed. In the beginning, the most capable adsorbent should be determined by quantifying adsorbed methane amount. Furthermore, checking the possibility of adsorption in the column diffusion and desorption method of adsorbents is equally necessary. The most capable adsorbent was activated carbon (AC), which can adsorb 1.187 × 10−3 mg-CH4/g-AC. Hereinafter, activated carbon successfully can adsorb methane through column diffusion, which simulates the situation of on-site measurement. The specific amount of adsorbed methane when the initial concentrations of CH4 in a bag were 200 ppm, 100 ppm, and 50 ppm was found to be 0.818 × 10−3 mg-CH4/g-AC, 0.397 × 10−3 mg-CH4/g-AC, 0.161 × 10−3 mg-CH4/g-AC, respectively. Desorption of activated carbon analysis shows that methane concentration increases during an hour in the temperature bath under 80 °C. In conclusion, soil methane leakage points can be detected using activated carbon by identifying the observed methane concentration increase.

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