Correction to A Model To Estimate Carbon Dioxide Injectivity and Storage Capacity for Geological Sequestration in Shale Gas Wells

Internationally, the level of public awareness of carbon dioxide capture and storage (CCS) technology remains low. The mainstream media have a salient influence in shaping the debate on CCS's implementation and its risks. This paper presents the results of analysis of print media coverage of CCS worldwide between August 2009 and June 2010. A total of 1138 articles from the Carbon Sequestration Leadership Forum were reviewed and analysed. The majority of these articles were balanced or neutral in tone and lacking in technical detail. Fifteen key themes were identified. Two of these emerged the most frequently across all sources: CCS pilot and demonstration projects, and funding issues. This suggests a pattern of media curiosity over how financial support for CCS is provided and what results are occurring at pilot and demonstration efforts. Cross-regional key risks included: Time, cost, and implementation issues; technical validity; and storage capacity issues.

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Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China

Geofluids ◽

10.1155/2020/8834758 ◽

2020 ◽

Vol 2020 ◽

pp. 1-16

Author(s):

Yuqi Huang ◽

Peng Zhang ◽

Jinchuan Zhang ◽

Xuan Tang ◽

Chengwei Liu ◽

...

Keyword(s):

Organic Matter ◽

Fractal Dimension ◽

Pore Structure ◽

Shale Gas ◽

Storage Capacity ◽

Evaluation Criteria ◽

Fractal Dimensions ◽

Gas Absorption ◽

Relative Pressure ◽

And Storage

The pore structure of marine-continental transitional shales from the Longtan Formation in Guizhou, China, was investigated using fractal dimensions calculated by the FHH (Frenkel-Halsey-Hill) model based on low-temperature N2 adsorption data. Results show that the overall D 1 (fractal dimension under low relative pressure, P / P 0 ≤ 0.5 ) and D 2 (fractal dimension under high relative pressure, P / P 0 > 0.5 ) values of Longtan shales were relatively large, with average values of 2.7426 and 2.7838, respectively, indicating a strong adsorption and storage capacity and complex pore structure. The correlation analysis of fractal dimensions with specific surface area, average pore size, and maximum gas absorption volume indicates that D 1 can comprehensively characterize the adsorption and storage capacity of shales, while D 2 can effectively characterize the pore structure complexity. Further correlation among pore fractal dimension, shale organic geochemical parameters, and mineral composition parameters shows that there is a significant positive correlation between fractal dimensions and organic matter abundance as well as a complex correlation between fractal dimension and organic matter maturity. Fractal dimensions increase with an increase in clay mineral content and pyrite content but decrease with an increase in quartz content. Considering the actual geological evaluation and shale gas exploitation characteristics, a lower limit for D 1 and upper limit for D 2 should be set as evaluation criteria for favorable reservoirs. Combined with the shale gas-bearing property test results of Longtan shales in Guizhou, the favorable reservoir evaluation criteria are set as D 1 ≥ 2.60 and D 2 ≤ 2.85 . When D 1 is less than 2.60, the storage capacity of the shales is insufficient. When D 2 is greater than 2.85, the shale pore structure is too complicated, resulting in poor permeability and difficult exploitation.

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Gas transport and storage capacity in shale gas reservoirs – A review. Part A: Transport processes

Journal of Unconventional Oil and Gas Resources ◽

10.1016/j.juogr.2015.08.001 ◽

2015 ◽

Vol 12 ◽

pp. 87-122 ◽

Cited By ~ 103

Author(s):

Yves Gensterblum ◽

Amin Ghanizadeh ◽

Robert J. Cuss ◽

Alexandra Amann-Hildenbrand ◽

Bernhard M. Krooss ◽

...

Keyword(s):

Shale Gas ◽

Storage Capacity ◽

Gas Transport ◽

Transport Processes ◽

Gas Reservoirs ◽

Shale Gas Reservoirs ◽

And Storage

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CO 2 geological sequestration: Displacement behavior of shale gas methane by carbon dioxide injection

International Journal of Greenhouse Gas Control ◽

10.1016/j.ijggc.2017.09.001 ◽

2017 ◽

Vol 66 ◽

pp. 48-59 ◽

Cited By ~ 35

Author(s):

Peili Huo ◽

Dengfeng Zhang ◽

Zhen Yang ◽

Wei Li ◽

Jin Zhang ◽

...

Keyword(s):

Carbon Dioxide ◽

Shale Gas ◽

Carbon Dioxide Injection ◽

Geological Sequestration ◽

Displacement Behavior

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Geological sequestration of carbon dioxide in the Cambrian Mount Simon Sandstone: Regional storage capacity, site characterization, and large-scale injection feasibility, Michigan Basin

Environmental Geosciences ◽

10.1306/eg.05080909009 ◽

2009 ◽

Vol 16 (3) ◽

pp. 163-183 ◽

Cited By ~ 32

Author(s):

David A. Barnes ◽

Diana H. Bacon ◽

Stephen R. Kelley

Keyword(s):

Carbon Dioxide ◽

Large Scale ◽

Storage Capacity ◽

Site Characterization ◽

Michigan Basin ◽

Geological Sequestration ◽

Mount Simon Sandstone

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Compositional characterization and storage capacity of shale samples from La Luna and Conejo Formations (Middle Magdalena basin and the Eastern Cordillera): Implications for evaluation of cretaceous shale gas in Colombia

Boletín de Ciencias de la Tierra ◽

10.15446/rbct.n37.43685 ◽

2015 ◽

pp. 45-53 ◽

Cited By ~ 1

Author(s):

Paula Andrea Pacheco Sintura ◽

Agustín Cardona Molina ◽

Farid B. Cortés

Keyword(s):

Shale Gas ◽

Storage Capacity ◽

Total Porosity ◽

Organic Content ◽

Gas Reservoir ◽

Eastern Cordillera ◽

And Storage ◽

Compositional Characterization ◽

Petroleum Source Rock ◽

La Luna

Shale gas has become a major non-conventional energetical resource. La Luna Formation which is commonly considered as the main petroleum source rock, have also shown to be a major reservoir for shale gas resources. In order to understand the "real" potential of this unit and define exploration strategies, the correlation between compositional and petrophysical patterns. We have analyzed 11 shale samples from La Luna and Conejo Formation in the Middle Magdalena basin and the Eastern Cordillera in order to established its composition, total organic contents, thermal maturity, as well as its total porosity and adsorption capacity. Obtained results suggest that due to its organic content, the presence of quartz and carbonate that these shales have a good quality as a gas reservoir and may have also a moderately good behavior during fracturing.

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Effect of organic maturity on shale gas genesis and pores development: A case study on marine shale in the upper Yangtze region, South China

Open Geosciences ◽

10.1515/geo-2020-0216 ◽

2020 ◽

Vol 12 (1) ◽

pp. 1617-1629

Author(s):

Kun Zhang ◽

Jun Peng ◽

Xin Wang ◽

Zhenxue Jiang ◽

Yan Song ◽

...

Keyword(s):

Organic Matter ◽

Shale Gas ◽

Sichuan Basin ◽

Storage Capacity ◽

Thermal Evolution ◽

Marine Shale ◽

The Sichuan Basin ◽

The Impact ◽

And Storage ◽

Cracking Gas

AbstractThe marine shale in southern China has undergone complex tectonic evolution with a high thermal evolution degree. Excessive thermal evolution brings certain risks to shale gas exploration and development. With the advancement of experimental methods, the evolution process of shale reservoirs can be better understood from the micro-nanoscale. This work takes the Ordovician-Silurian Wufeng and the first member of Longmaxi Formation in the Sichuan Basin and Lower Cambrian Niutitang Formation in Outer Margin of the Sichuan Basin to study the impact of maturity upon the genesis of shale gas and development features of the reservoir. A series of geochemical research methods, including TOC, gas component and gas isotope, were adopted to study the impact of different thermal evolution stages of organic matter upon the genesis of shale gas. The nanoscale micro-imaging technique, such as FIB-SEM and FIB-HIM, was used to analyze the development of OM-hosted pores. As shown from the results, when Ro = 1.2–3.5%, the marine shale gas is dominated by methane and other hydrocarbon gases, since the mixture of cracking gas from liquid hydrocarbons and kerogen-cracking gas cause the carbon isotope reversal. Besides, the pyrobitumen pores characterized by the strong connectivity and storage capacity were primarily developed. When Ro > 3.5%, the organic matter is at the graphitization stage. The shale gas is mainly composed of nitrogen at this stage. The nitrogen is originated from the atmosphere and the thermal evolution process, and the OM-hosted pores (pyrobitumen and kerogen pores) characterized by the bad connectivity and storage capacity are developed. Finally, the main component of shale gas, the genesis of shale gas and the pattern of OM-hosted pores under different thermal evolution stages of organic matter are summarized, which provide technical support for the exploration and development of shale gas.

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