Optimal selection of favorable areas for CO2 geological storage in the Majiagou Formation in the Ordos Basin

Lu, Ping; Hao, Yuyu; Bai, Yong; Liu, Weigang; Chen, Xi; Zheng, Hua-an; Liu, Jie; Yong-zhen, Chen; Gao, Jianping

doi:10.1016/j.ijggc.2021.103360

Cited by 8 publications

(7 citation statements)

References 29 publications

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“…The sources of CO 2 in crustal-surface sedimentary fluids and natural gas are mainly divided into organic sources and inorganic sources [ 42 – 44 ]. The inorganic origin can be divided into mantle origin and petrochemical origin.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of inclusions in chang 7 member and shale oil accumulation stages in Zhijing-Ansai area, Ordos Basin

Wu,

Wang,

et al. 2024

PLoS ONE

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In order to further clarify the shale oil accumulation period of the Chang 7 member of the Mesozoic Triassic Yanchang Formation in the Zhijing-Ansai area of the central Ordos Basin, Using fluid inclusion petrography analysis, microscopic temperature measurement, salinity analysis and fluorescence spectrum analysis methods, combined with the burial history-thermal history recovery in the area, the oil and gas accumulation period of the Chang 7 member of the Yanchang Formation in the Zhijing-Ansai area was comprehensively analyzed. Sixteen shale oil reservoir samples of the Mesozoic Triassic Yanchang Formation in seven typical wells in the study area were selected.The results show that the fluid inclusions in the Chang 7 member of Yanchang Formation can be divided into two stages. The first stage inclusions mainly develop liquid hydrocarbon inclusions and a large number of associated brine inclusions, which are mainly beaded in fracture-filled quartz and fracture-filled calcite. The fluorescence color is blue and blue-green, and the homogenization temperature of the associated brine inclusions is between 90–110°C. The second stage inclusions are mainly gas-liquid two-phase hydrocarbon inclusions, gas inclusions and asphalt inclusions. Most of them are distributed in the fracture-filled quartz, and the temperature of the associated brine inclusions is between 120–130°C. Fluid inclusions in Chang 7 member of the Yanchang Formation can be divided into two stages. The CO2 inclusions and high temperature inclusions in the Chang 7 member of the Yanchang Formation are mainly derived from deep volcanic activity in the crust.

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Section: Resultsmentioning

confidence: 99%

Characteristics of inclusions in chang 7 member and shale oil accumulation stages in Zhijing-Ansai area, Ordos Basin

Wu,

Wang,

et al. 2024

PLoS ONE

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“…Global commercial-scale integrated carbon capture and storage (CCS) projects are shown in Figure 3. A first challenge of geological storage of carbon dioxide is to select and optimize favorable areas for carbon dioxide storage [43]. The selection and optimization of areas for geological storage of CO 2 requires assessment of reservoir conditions, capping conditions, and safety [44][45][46][47][48].…”

Section: Fmentioning

confidence: 99%

Using the Tidal Response of Groundwater to Assess and Monitor Caprock Confinement in CO2 Geological Sequestration

Zhang,

Chu,

Huang

et al. 2024

Water

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Carbon geological storage (CGS) is an important global practice implemented to mitigate the effects of CO2 emissions on temperature, climate, sea level, and biodiversity. The monitoring of CGS leakage and the impact of storage on hydrogeological properties is important for management and long-term planning. In this study, we show the value of passive monitoring methods based on measuring and modeling water-level responses to tides. We review how monitoring can be used to identify time-varying horizontal and vertical permeabilities as well as independently detect time-varying fracture distribution in aquifer–caprock systems. Methods based on water-level responses to Earth tides are minimally invasive, convenient, economic (since they use existing groundwater wells), and time-continuous. We show how measurements can be used to detect aquifer leakage (caprock confinement) and the distribution of surrounding faults and fractures, which are the two most important unsolved quantities in assessing geological CO2 storage strategies.

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“…The Chinese government attaches great importance to and actively responds to it and puts forward the grand goal of 'strive to reach the peak of CO 2 emissions by 2030 and strive to achieve carbon neutrality by 2060' (Editorial Department of China energy, 2020). To achieve the goal of carbon neutralization, carbon capture, utilization, and storage (CCUS) technology is the final bottom technology after industry, transportation, construction, and other industries reach the maximum emission reduction target (Ahmadi et al, 2020;Buah et al, 2021;Diao Y J et al, 2021;Li et al, 2019;Qi et al, 2013;Lu et al, 2021a;Wei and Peng, 2013;Xu et al, 2021;Zhang et al, 2008;Qin et al, 2020;Vulin et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…CO 2 geological storage technology (CCS) transforms CO 2 into a supercritical state and stores it in underground storage to realize permanent geological storage (Lu et al, 2021b). CO 2 geological storage mechanism (Lu et al, 2021a) mainly includes structural and stratigraphic storage mechanism, irreducible water storage mechanism, dissolution storage mechanism, and mineral storage mechanism (Bachu, 2000;Surdam et al, 2013;Sawada et al, 2018). For the deep saline layer dominated by carbonate rock, the storage process is always the result of the simultaneous action of different storage mechanisms.…”

Section: Introductionmentioning

confidence: 99%

“…According to the literature review, most of the predecessors determined the location of carbon dioxide geological storage from a geological point of view. (Li et al, 2015;Kulizina, 2016;Lu et al, 2021b;Shen et al, 2021). Such a method for determining the storage site is only analyzed from a qualitative point of view, lacking intuitive contrast.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of CO2 geological storage sites based on regional stability evaluation—A case study on geological storage in tianjin, china

Wan²,

Zheng³

et al. 2022

Front. Earth Sci.

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Carbon dioxide geological storage is one of the important means to mitigate the greenhouse effect and curb global warming. The key to carbon dioxide (CO2) geological storage is to select a suitable storage site. Using the geological analysis method and analytic hierarchy process (AHP)–fuzzy comprehensive evaluation method, combining the qualitative analysis of geological conditions with the quantitative calculation of site parameters, this study determines a site target area suitable for CO2 geological storage in Tianjin. First, the regional crustal stability of Tianjin is discussed, and the characteristics of regional gravity field anomaly, regional crustal thickness, and regional aeromagnetic characteristics are comprehensively analyzed. The site is focused on Banqiao sag, a class ⅳ tectonic unit in Bohai Bay Basin. Second, aiming at the storability, safety, and economy of the site, the expert investigation method is used to construct the target area evaluation index system, including four primary indexes and ten secondary indexes. The weight of each index is determined using the analytic hierarchy process. A two-level fuzzy comprehensive evaluation mathematical model is constructed. The suitability of CO2 geological storage in three sites (site A, site B, and site C) in Banqiao sag is evaluated. The results are as follows: the comprehensive membership of site A, site B, and site C is 0.8629, 0.3926 and 0.1750, respectively. The comprehensive membership of site A is the largest. The evaluation results show that the preferred target area of Tianjin local carbon dioxide geological storage site is located in ‘site A’ near Dazhangtuo fault in Banqiao sag, Huanghua depression, Bohai Bay Basin (with an area of about 5 km2). In this study, a suitable target area is delineated for the local CO2 geological storage site in Tianjin, which can be used as an advantageous location for CO2 geological storage. The conclusion has a positive response to the problem of CO2 emission reduction in Tianjin.

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Optimal selection of favorable areas for CO2 geological storage in the Majiagou Formation in the Ordos Basin

Cited by 8 publications

References 29 publications

Characteristics of inclusions in chang 7 member and shale oil accumulation stages in Zhijing-Ansai area, Ordos Basin

Characteristics of inclusions in chang 7 member and shale oil accumulation stages in Zhijing-Ansai area, Ordos Basin

Using the Tidal Response of Groundwater to Assess and Monitor Caprock Confinement in CO2 Geological Sequestration

Optimization of CO2 geological storage sites based on regional stability evaluation—A case study on geological storage in tianjin, china

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