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Slovenia
Now, it is the last remaining motorway tunnel at European corridor 10 (also on the Slovenian network of motorways), which traffic is running in both directions in a single tube. The 7.9 km tunnel, as a major motorway link between Slovenia and Austria, is heavily loaded with traffic. Approximately half of the tunnel, that is some 3,5km, is at Slovenian side, the rest is at Austrian. To overcome traffic bottlenecks at European corridor 10 and to comply with European Council 2004/54/ES Directive for safety in tunnels, Austria and Slovenia decided to build a new, East tube, which is currently under construction. In historical terms the tunnel plays a significant role in connecting the Middle Europe with Southern Europe as the link passes beneath Karavanke chain of mountains, some 2500m high, which were a natural obstacle that was difficult to pass for centuries. The decision for construction of old Karavanke tunnel (West tube) was taken in 1985 and the first excavation and the primary support of the tunnel started in August 1986. The construction of the tunnel was carried out according to the principles of NATM (New Austrian Tunnelling Method). It was a correct decision at the time that NATM is the adequate method for tunnel construction for ground conditions, which were characterized by a heavily tectonized and heterogenous rock mass and abundance of groundwater. However, at some point, construction of West tube of Karavanke tunnel looked like an insurmountable obstacle during the huge inflow of groundwater into the tunnel at excavation at the chainages 350m, 740 m and 3030 m.
austria government, borehole, construction, drainage borehole, east tube, europe government, excavation, excavation face, Fault Zone, geotechnic isrm specialized conference 2022, ljubljana, macedonian association, Reservoir Characterization, slovenia government, tunnel, water inflow, water pressure, west tube
We are seeing an uptrend in the instrumentation of legacy wells across the world, as costs lower and business cases become obvious. Several interesting technology applications have been showcased lately about retrofitting instrumentation and control technology in legacy wells. Advances on the digital front, where data science and engineering analytics are becoming more embedded in regular production monitoring and optimization processes, have been widespread. On the gas lift side, developments in surface controllable gas lift valves, which can be deployed during the completion phase, or retrofitted in existing mandrels through well intervention, have proceeded apace. This technology can bring significant improvement in the monitoring and management of wells because the operating envelope can be significantly expanded.
Country:
- Europe > Slovenia > Apače > Apače (0.26)
- Asia > Middle East (0.22)
SPE Disciplines:
Technology:
- Information Technology > Data Science (0.38)
- Information Technology > Communications > Networks (0.34)
We are seeing an uptrend in the instrumentation of legacy wells across the world, as costs lower and business cases become obvious. Several interesting technology applications have been showcased lately about retrofitting instrumentation and control technology in legacy wells. Advances on the digital front, where data science and engineering analytics are becoming more embedded in regular production monitoring and optimization processes, have been widespread. On the gas lift side, developments in surface controllable gas lift valves, which can be deployed during the completion phase, or retrofitted in existing mandrels through well intervention, have proceeded apace. This technology can bring significant improvement in the monitoring and management of wells because the operating envelope can be significantly expanded. Other technology developments involve the use of alternative data. As the saying goes, somebody’s noise is somebody else’s data. A use case of alternative data for rod pumps uses edge computing to process electric measurements and extract features using signal processing and machine learning. This can be used to create synthetic dynamometer cards used to optimize the wells in real time and predict failures ahead of time. Similar techniques could be applicable for electric submersible pumps. Distributed acoustic sensing (DAS) has many applications, but it is challenging to fully exploit the capability because of the sheer amount of raw data coming from these sensors. The data need to be compressed using feature-extraction algorithms. Each use case may require data over different regions of the frequency spectrum covered by the sensors, so how can feature extraction be set to account for all present and future use cases? Significant advances in inflow profiling have been achieved over the past few years, correlating DAS signals against flow-loop measurements and transient simulations. These technologies are very promising, especially now that wet connect and pumpdown technology for fiber optics is gaining more attention. Digital technology for orchestrating production-optimization and reservoir-management work flows has been increasingly embedding machine-learning functionality. Despite these advances, it remains a challenge to maintain these digital solutions over the long term. The most-successful companies in this area ensure the systems are tightly integrated with business-critical work flows, such as integrated activity planning, loss management, locked-in potential management, reservoir-surveillance planning, well-work-opportunity identification, production forecasting, and production back allocation. This involves a significant management of change process. It takes time and effort, but the rewards are worth it. Recommended additional reading at OnePetro: www.onepetro.org. SPE 207879 - Expert Advisory System for Production Surveillance and Optimization Assisted by Artificial Intelligence by Carlos Mata, ADNOC Upstream, et al. SPE 201313 - Production Rate Measurement Optimization Using Test Separator and In-Well Sound Speed by Ö. Haldun Ünalmis, Weatherford SPE 203119 - Wireless Completion Monitoring and Flow Control: A Hybrid Solution for Extended Capabilities by Marcel Bouman, Emerson Automation Solutions
adnoc upstream, alternative data, application, Artificial Intelligence, artificial lift system, carlos mata, gas injection, gas lift, legacy well, march 2022, production control, production logging, production monitoring, Reservoir Surveillance, senior digital oilfield specialist, sensor, Technology Focus, Upstream Oil & Gas, uptrend, Use case, work flow
Industry:
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Asia Government > Middle East Government > UAE Government (0.33)
SPE Disciplines:
Technology:
- Information Technology > Data Science (0.78)
- Information Technology > Communications > Networks (0.57)
- Information Technology > Artificial Intelligence > Machine Learning (0.46)
ABSTRACT: Despite many years of research, rock bursts and excessive gas emissions remain a longstanding cause for concern and a major hazard in underground coal mining. There are several traditional approaches to forecast rock bursts in underground mining, but it is difficult to use a single criterion for this purpose due to variations in mining conditions worldwide. This paper presents a generic probabilistic risk assessment (PRA) framework developed to estimate the probability of rock bursts and excessive gas emissions by incorporating the inherent uncertainty involved in a typical longwall coal mining scenario. The vertical stress, total volume of gas emission, and incremental energy release rate (ERR) were determined from a coupled geomechanical and gas flow model to represent longwall top coal caving mining practiced at Coal Mine Velenje. The values were fed into the PRA framework and the probability of rock bursts, gas emissions and safe mining conditions were estimated. The probability of rock burst occurrence was calculated to be 0.138, excessive gas emission to be 0.353 and safe mining conditions to be 0.565. This paper offers a new approach to overcome the limitations of traditional approaches for rock burst and excessive gas emissions forecasting. 1. Introduction Rock bursts and excessive gas emissions have been a longstanding topic of research and a major hazard in coal mining (Xu et al., 2020). Sudden and violent ejection of coal/rock at high speed into the mine workings is referred to as rock bursts (Cai et al., 2016; Mark, 2016; Zhou et al., 2016; Zhou et al., 2018; Agrawal et al., 2019). This dynamic phenomenon is mostly driven by the release of strain and gas energy accumulated in the coal/rock mass (Agrawal et al., 2019). Due to continued dependence on coal and fast depletion of shallow depth deposits, coal mining depth is increasing at an average rate of ~20 m per year (Dou et al., 2009). The risk of rock bursts and excessive gas emissions increases with the increase in mining depth due to unfavourable stress and gas pressure conditions (Zhou et al., 2012; Agrawal et al., 2020). Researchers agree that for rock bursts to occur, a high stress and high energy environment is necessary, which is often found in deep mining conditions (Cai, 2016; Zhu et al., 2018).
Artificial Intelligence, coal, energy release rate, Engineering, excavation step, excessive gas emission, gas emission, goldsim, incremental energy release rate, international journal, longwall face, longwall top coal, machine learning, metals & mining, probability, release rate, Reservoir Characterization, reservoir geomechanics, reservoir simulation, risk and uncertainty assessment, risk management, rock burst, Rock mechanics, structural geology, variation, vertical stress
Country:
- North America > United States > Texas > Harris County > Houston (0.28)
- Europe > Slovenia > Velenje > Velenje (0.26)
Industry:
- Materials > Metals & Mining > Coal (1.00)
- Government > Regional Government > North America Government > United States Government (0.68)
SPE Disciplines:
Technology:
Aerospace giant Honeywell International said Monday it has launched an unmanned aerial systems (UAS) business unit to leverage the growing market in autonomous aviation, which includes drones, air taxis, and unmanned cargo delivery vehicles. Stéphane Fymat, head of the new business, said Honeywell expects the hardware and software market for urban air taxis, drone cargo delivery, and other drone businesses to reach $120 billion by 2030 and stated that Honeywell's market opportunity would be approximately 20% of that amount. He declined to say how much of that market Honeywell was targeting, adding only that the unit has hundreds of employees with many engineers. The coronavirus pandemic has created a surge of interest in drone deliveries, and Fymat said it's accelerating the drone cargo delivery programs of some of Honeywell's partners. Among these are Intel-backed Volocopter; Slovenia-based small aircraft maker Pipistrel, which is developing an electric vertical take-off and landing aircraft for cargo delivery; and UK-based Vertical Aerospace, which has test-flown a prototype vehicle that can carry 250 kg and fly at 80 km/hour.
Country:
- Europe > United Kingdom (0.27)
- Europe > Slovenia (0.27)
- North America > United States > California (0.20)
Industry:
- Transportation > Air (1.00)
- Construction & Engineering > HVAC (1.00)
- Automobiles & Trucks > Parts Supplier (1.00)
- Aerospace & Defense (1.00)
Technology: Information Technology > Artificial Intelligence > Robots > Autonomous Vehicles > Drones (1.00)
Technology development and investments were top of mind for a panel of speakers at the Research and Development Technical Section's luncheon during the SPE Annual Technology Conference and Exhibition on Tuesday. A panel comprising representatives from a university, two operators, a service company, and a technology-focused investment firm offered views on the status of technology and its role in the future. Introductory remarks were made by Olga Koper, energy business development and sales leader at Battelle and a director of the R&D Technical Section. She noted the growth of interest in all things technology-related, with the technical section's membership now standing at nearly 4,000. When the section was launched 11 years ago, the number was 46.
Country:
- Europe > Slovenia > Koper > Koper (0.25)
- North America > United States > Texas (0.16)
SPE Disciplines:
Technology development and investments were top of mind for a panel of speakers at the Research and Development Technical Section's luncheon during the SPE Annual Technology Conference and Exhibition on Tuesday. A panel comprising representatives from a university, two operators, a service company, and a technology-focused investment firm offered views on the status of technology and its role in the future. Introductory remarks were made by Olga Koper, energy business development and sales leader at Battelle and a director of the R&D Technical Section. She noted the growth of interest in all things technology-related, with the technical section's membership now standing at nearly 4,000. When the section was launched 11 years ago, the number was 46.
Country:
- Europe > Slovenia > Koper > Koper (0.25)
- North America > United States > Texas (0.16)
SPE Disciplines:
Innovation is a hallmark of oil and gas operations. As companies look to survive in the new economy created by the oil price downturn, the need to find new, cost-efficient technology for manufacturing, data processing, or even overall project management, is greater than ever, so much so that the industry is examining other industries for products and processes that may have crossover appeal. That examination was the topic of a panel discussion at the Unconventional Resources Technology Conference in July, where a panel of scientists from firms and laboratories spoke about emerging technologies and new uses for old technologies outside the sphere of traditional petroleum that could have a disruptive impact on the industry. Olga Koper, oil and gas market leader at Battelle, discussed some of the projects the science research firm has developed in the medical field that could provide significant benefit to operating companies. One such device, the NeuroLife Neural Bypass Technology, helps paralyzed patients regain conscious control of their fingers, hands, and wrists.
additive manufacturing, algorithm, application, Artificial Intelligence, Battelle, brain, decision making, ernst & young, innovative technology lead industry, isope-i-14-595, Koperna, new technology, polsky, project management, real time system, similar algorithm, strategic planning and management, tracer, unconventional source, Upstream Oil & Gas, win win concept
Country:
- North America > United States (0.29)
- Europe > Slovenia > Koper > Koper (0.28)
SPE Disciplines:
Technology:
- Information Technology > Data Science (0.48)
- Information Technology > Artificial Intelligence (0.48)
- Information Technology > Architecture > Real Time Systems (0.31)
Abstract The Vipava River Valley is well known as a landslide-prone area in Slovenia. Since the area is very large, the application of in situ monitoring systems is limited. An efficient method that can monitor the whole area of the Vipava River Valley is highly required. In this study, the SBAS DInSAR method is applied to monitor the displacement behavior of landslides in this area. Using four images of ALOS2-PALSAR2 data, captured from March 2016 to December 2018, clear LOS displacement distribution maps are obtained. The temporal transition of the displacement behavior is also obtained using 273 images of Sentinel-1A/B for both ascending and descending passes taken from September 2016 to January 2019. The monitoring results for the Slano blato landslide are demonstrated in this paper. LOS displacements of several cm are detected despite the countermeasure works that were performed. The SBAS DInSAR gives a better understanding of the spatio-temporal landslide displacements in the area. 1. Introduction The Vipava River Valley, located in the southwest part of Slovenia, is well known as a landslideprone area (Bizjak and Zupančič, 2009; Jemec Auflič et al., 2017; Verbovšek et al., 2018). There are four remarkable landslides in this area, namely, Rebrnice, Stogovce, Slano blato, and Selo. The area extends 40 km in length and several km in width. The landslides are characterized by various volumes and velocities in their movement. The occurrence of debris flows and landslides sometimes causes damage to houses, infrastructures, farmland, etc. Moreover, the lives of people in the surrounding villages are also endangered due to slope failures, rock falls, and debris flows. Several mitigation plans have been conducted to minimize the risk of landslides, such as constructing piles, retaining walls, check dams, drainage wells, etc. Nevertheless, some landslides are still active and potentially hazardous. It is vital that the current situation of the landslides be known and that better mitigation plans be designed by monitoring the landslide behavior along with conducting geological and geotechnical studies. An effective method that is capable of covering extensive areas and realizing spatio-temporal continuous monitoring is needed. The Small Baseline Differential Interferometry SAR (SBAS DInSAR) is known as a useful method for ground surface deformation monitoring (Berardino et al. 2002; Ferretti, 2014). The first and second authors succeeded in applying this method to the long-term monitoring of land-subsidence (Yastika et al., 2019). The same method is applied for monitoring landslide displacements in this study. The data observed by ALOS2-PALSAR2 and Sentinel-1A/B are used for the analyses. This study presents the preliminary results in order to gain a better understanding of the landslide behavior over the whole area of the Vipava River Valley.
Artificial Intelligence, dataset, DInSAR, displacement, knowledge management, landslide, los displacement, los displacement map, machine learning, sba dinsar, slano blato landslide, slano blato landslide area, Slovenia, study area, surface displacement, temporal coherence, temporal transition, transition, Upstream Oil & Gas, vipava river valley
SPE Disciplines:
- Reservoir Description and Dynamics (1.00)
- Data Science & Engineering Analytics > Information Management and Systems > Artificial intelligence (0.49)
- Management > Professionalism, Training, and Education > Communities of practice (0.40)
- Data Science & Engineering Analytics > Information Management and Systems > Knowledge management (0.40)
Abstract In the south-west part of Slovenia runs a major thrust fault, which divides limestone and flysch strata known as the Karst Edge. Karst Edge is seen at the ground surface as a major natural feature consisting of a 50km long and some 30m high vertical limestone cliff that dominate the landscape. Combination of the tectonic fracturing and the weathering causes the limestone cliff to crumble and break triggering the rock falls and also the instabilities in the flysh strata bellow. At the location of Bezovica village, a large block had fallen triggering a landslide in weathered flysch below. It was concluded that the mechanism of instability was a combination of the action of the additional surcharge deposited by the fallen rock and the rise of pore pressures within the weathered ground above the flysch layer. The remediation works, which included controlled blasting and removal of the rock debris and extended drainage measures, are presented in the paper. 1 Introduction 1.1 Geological and hydrogeological features associated with Karst Edge Between Kozina and Koper in Slovenia there is the border area between Istria, belonging to Dinaric foreland, and Kras (Karst in Slovene) that belong to the External Dinarides. The Karst Edge or Karst Rim is an imbricate geological structure, formed between Eocene and Oligocene. Figure 1 The main feature of Karst Edge is the sequence of thrust faults overlapping Cretaceous, Palaeocene, Lower and Middle Eocene carbonate beds with transition marl and flysch rocks of Eocene age. The faults were active in post-Miocene times due to under-thrusting of Istria peninsula under the mainland External Dinarides (Placer, 2007). The Karst Edge is a formidable geological obstacle for the development of infrastructure. In Slovenia, a construction of motorway connecting the capital Ljubljana and port of Koper and the site investigations carried out for the need of new railway line were instrumental to reveal the structural features of Karst Edge. The overlap of thrust faults formed ideal conditions for the formation of karst features in the Slovenian Karst plateau, which extends east of Karst Edge. In the typical sequence, the underlying flysch acts as an aquitard, holding the significant water retention to water bearing limestone above.
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