scholarly journals The low cost of geological assessment for underground CO2 storage: Policy and economic implications

2006 ◽  
Vol 47 (13-14) ◽  
pp. 1894-1901 ◽  
Author(s):  
S. Julio Friedmann ◽  
James J. Dooley ◽  
Hermann Held ◽  
Ottmar Edenhofer
Keyword(s):  
Low Cost ◽  
Co2 Storage ◽  
Economic Implications

scholarly journals Hoophouse Contributions to Economic Viability: Nine Michigan Case Studies

2010 ◽  
Vol 20 (5) ◽  
pp. 877-884 ◽  
Author(s):  
David S. Conner ◽  
Kurt B. Waldman ◽  
Adam D. Montri ◽  
Michael W. Hamm ◽  
John A. Biernbaum
Keyword(s):  
Case Studies ◽  
Crop Production ◽  
Low Cost ◽  
Warm Season ◽  
Time Frame ◽  
Economic Viability ◽  
Construction Time ◽  
Economic Implications ◽  
Study Results ◽  
Cold Tolerant

Relatively low-cost season extension structures have the potential to contribute to farm economic viability in temperate climates by providing a means to continue sales beyond the limits of outdoor-only field production. These structures, commonly called hoophouses, high tunnels, passive solar greenhouses, or unheated greenhouses, allow for the extension of heat-tolerant (warm season) crops on both ends of the production time frame and at winter harvesting of cold-tolerant (cool season) crops. In this study, results are presented from a multiyear investigation into the economic impacts of year-round production and harvesting, with a focus on profitability of the structure and crop production as a whole. The results of case studies from nine Michigan farms reveal a very broad range of outcomes across farms in construction time, labor allocation and returns, and gross and net revenue. The economic implications of farmer use, including projected investment payback time, are discussed.

scholarly journals Continuous monitoring system for safe managements of CO2 storage and geothermal reservoirs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takeshi Tsuji ◽  
Tatsunori Ikeda ◽  
Ryosuke Matsuura ◽  
Kota Mukumoto ◽  
Fernando Lawrens Hutapea ◽  
...  
Keyword(s):  
Monitoring System ◽  
Continuous Monitoring ◽  
Field Experiments ◽  
Seismic Velocity ◽  
Signal To Noise Ratio ◽  
Low Cost ◽  
Co2 Storage ◽  
Seismic Source ◽  
Temporal Variations ◽  
Wide Frequency Range

AbstractWe have developed a new continuous monitoring system based on small seismic sources and distributed acoustic sensing (DAS). The source system generates continuous waveforms with a wide frequency range. Because the signal timing is accurately controlled, stacking the continuous waveforms enhances the signal-to-noise ratio, allowing the use of a small seismic source to monitor extensive areas (multi-reservoir). Our field experiments demonstrated that the monitoring signal was detected at a distance of ~ 80 km, and temporal variations of the monitoring signal (i.e., seismic velocity) were identified with an error of < 0.01%. Through the monitoring, we identified pore pressure variations due to geothermal operations and rains. When we used seafloor cable for DAS measurements, we identified the monitoring signals at > 10 km far from the source in high-spatial resolution. This study demonstrates that multi-reservoir in an extensive area can be continuously monitored at a relatively low cost by combining our seismic source and DAS.

scholarly journals Continuous monitoring system for safe managements of CO2 storage and geothermal reservoirs

2021 ◽  
Author(s):  
Takeshi Tsuji ◽  
Tatsunori Ikeda ◽  
Ryosuke Matsuura ◽  
Kota Mukumoto ◽  
Hutapea Lawrens ◽  
...  
Keyword(s):  
Monitoring System ◽  
Continuous Monitoring ◽  
Field Experiments ◽  
Seismic Velocity ◽  
Signal To Noise Ratio ◽  
Low Cost ◽  
Co2 Storage ◽  
Seismic Source ◽  
Temporal Variations ◽  
Wide Frequency Range

Abstract We have developed a new continuous monitoring system based on small seismic sources and distributed acoustic sensing (DAS). The source system generates continuous waveforms with a wide frequency range. Because the signal timing is accurately controlled, stacking continuous waveforms enhances the signal-to-noise ratio, allowing the use of a small seismic source to monitor extensive areas (multi-reservoir). Our field experiments demonstrated that the monitoring signal was detected at a distance of ~80 km, and temporal variations of the monitoring signal (i.e., seismic velocity) were identified with >99.9% accuracy. Through the monitoring, we identified pore pressure variations due to geothermal operations and rains. When we used seafloor cable for DAS measurements, we identified the monitoring signals at >10 km far from the source in high-spatial resolution. This study demonstrates that multi-reservoir in an extensive area can be continuously monitored at a relatively low cost by combining our seismic source and DAS technology.

scholarly journals Linking multi-scale 3D microstructure to potential enhanced natural gas recovery and subsurface CO2 storage for Bowland Shale, UK

2021 ◽  
Author(s):  
Lin Ma ◽  
Anne-laure Fauchille ◽  
Humera Ansari ◽  
Michael Chandler ◽  
Paul D Ashby ◽  
...  
Keyword(s):  
Natural Gas ◽  
Low Cost ◽  
Co2 Storage ◽  
Low Carbon ◽  
Gas Recovery ◽  
Multi Scale ◽  
3D Microstructure ◽  
Potential Contributor ◽  
Shale Reservoirs ◽  
Natural Gas Recovery

Injection of CO2 into shale reservoirs to enhance gas recovery and simultaneously sequester greenhouse gases is a potential contributor towards the carbon-neutral target. It offers a low-carbon, low-cost, low-waste and...

Opportunities for low-cost CO2 storage demonstration projects in China

Energy Policy ◽  
2007 ◽  
Vol 35 (4) ◽  
pp. 2368-2378 ◽  
Author(s):  
Kyle C. Meng ◽  
Robert H. Williams ◽  
Michael A. Celia
Keyword(s):  
Low Cost ◽  
Co2 Storage

scholarly journals Monitoring occurrence of SARS-CoV-2 in school populations: a wastewater-based approach

2021 ◽  
Author(s):  
Victor Castro Gutierrez ◽  
Francis Hassard ◽  
Milan Vu ◽  
Rodrigo Leitao ◽  
Beata Burczynska ◽  
...  
Keyword(s):  
Low Cost ◽  
Further Education ◽  
Clinical Testing ◽  
Monitoring Tool ◽  
Invasive Approach ◽  
Economic Implications ◽  
Non Invasive ◽  
Frequent Use

Clinical testing of children in schools is challenging, with economic implications limiting its frequent use as a monitoring tool of the risks assumed by children and staff during the COVID-19 pandemic. Here, a wastewater based epidemiology approach has been used to monitor 16 schools (10 primary, 5 secondary and 1 post-16 and further education for a total of 17 sites) in England. A total of 296 samples over 9 weeks have been analysed for N1 and E genes using qPCR methods. Of the samples returned, 47.3% were positive for one or both genes with a frequency of detection in line with the respective community. WBE offers a promising low cost, non-invasive approach for supplementing clinical testing and can offer longitudinal insights that are impractical with traditional clinical testing.

scholarly journals Experimental Assessment of the Sealing Potential of Hydrated Solgel for the Remediation of Leaky Reservoirs

Geosciences ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 290
Author(s):  
Maria Garcia-Rios ◽  
Philippe Gouze
Keyword(s):  
Risk Mitigation ◽  
Low Cost ◽  
Co2 Storage ◽  
Critical Issue ◽  
Low Viscosity ◽  
Sealing Capacity ◽  
Hydrated Product ◽  
Degraded Material ◽  
Variable Success ◽  
A New Technique

The full-scale deployment of underground storage of CO2 in permeable sedimentary reservoirs depends strongly on the sealing capacity of the caprocks and wellbore cement that may be degraded leading to hydraulic discontinuities. Remediation technologies consisting in rebuilding the sealing capacity of the degraded material, or adding a new sealing layer, is a critical issue as part of the risk mitigation procedure required for underground CO2 storage. Actually, engineered Portland cement injection is the foremost available industrial technique; however, alternative products offering, for instance, better injection properties, are currently investigated with variable success so far. In this study, a new technique aimed at using a low viscosity hydrated solgel as sealant product in case of leakage is presented. Its low cost, high injectivity capacity and low density of the hydrated product (hydrogel) makes this technique attractive. The solgel synthesis was optimized for (1) reducing energetic and material costs; (2) improving the chemical and mechanical properties of the emplaced product and (3) controlling the duration of the aging process in order to form a solid hydrogel after a few days. Permeability tests that consisted of injecting the synthesized solgel in different porous media confirmed the sealant capacity of the emplaced hydrogel to significantly reduce rock permeability.

US urban housing prices may stifle consumption growth

2015 ◽  
Keyword(s):  
New York ◽  
San Francisco ◽  
Urban Areas ◽  
Low Cost ◽  
Housing Prices ◽  
The United States ◽  
Urban Housing ◽  
San Jose ◽  
Economic Implications ◽  
Content Type

Subject The economic implications of high housing costs in US cities Significance A lack of homes to buy and rent has pushed prices in California 250% and 50% higher respectively than in the rest of the United States according to a report by the state's Legislative Analyst's Office released on March 17. The problem is most acute in the San Francisco and San Jose metropolitan areas, home to Silicon Valley and much of the US tech industry, where the average rent is 53% higher than the California average. Impacts Low-cost areas near employment hubs, such as Queens in New York or Oakland near San Francisco, are likely to grow. However, this will exacerbate political questions over inequality and 'gentrification'. These issues will play a large role in the Democratic primary campaign, as these areas are overwhelmingly Democratic. Congress, which overrepresents non-urban areas, is unlikely to pass legislation addressing this issue before 2017.

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