Prediction of coal-bearing strata characteristics using multi-component seismic data—a case study of Guqiao coalmine in China

Xiong, Shu; Lu, Jun; Qin, Yun

doi:10.1007/s12517-018-3767-0

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…The term θ is the angle between the measuring direction and axis of symmetry of the TI medium. We substitute equation 4 into the formula for Young's modulus and Poisson's ratio proposed by Sharma and Chopra (2015) and Xiong et al (2018) and equations 5 and 6 can be obtained…”

Section: Full-angle Anisotropic Brittleness Indexmentioning

confidence: 99%

Effect of anisotropy, angle, and critical tensile stress and confining pressures on evaluation of shale brittleness index — Part 1: Methodology and laboratory study

et al. 2019

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Brittleness is an important evaluation parameter in shale fracturing. Current methods of brittleness evaluation can be classified into two categories: elastic parameter-based and mineral content-based methods. However, both categories neglect the effect of anisotropy on the brittleness index (BI) computation of shale resources. We have redefined a new BI by integrating failure criteria stress and anisotropy parameters estimated (BIac) from seismic waves. According to the new definition, the BI at one analysis point varies with the incident angle of the seismic wave and confining pressures. We applied the BIac method to laboratory-measured shale samples acquired from the Monterey Formation, Santa Maria Basin. We found that the delta parameter [Formula: see text] is more responsive to the BIac than the gamma [Formula: see text] and epsilon [Formula: see text] anisotropic parameters, and it indicates a good linear fit relationship with the BIac at different angles. The slope of the linear is variable with the angles, thus delta can be used to predict the BIac in the Monterey Formation, Santa Maria Basin.

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Section: Full-angle Anisotropic Brittleness Indexmentioning

confidence: 99%

Effect of anisotropy, angle, and critical tensile stress and confining pressures on evaluation of shale brittleness index — Part 1: Methodology and laboratory study

et al. 2019

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“…The coal-bearing strata are Taiyuan Formation of upper Carboniferous series, Shanxi Formation of lower Permian series, lower Shihezi Formation, and upper Permian Shangshihezi Formation, with a total thickness of about 900 m and about 40 layers of coal seams [27][28] . The coal seams with single-layer thickness greater than 0.7 m on average are 9 ~ 18 layers, the maximum thickness is 12 m, and the total thickness is 23 ~ 36 m, distributed in Shanxi Formation, lower Shihezi Formation and upper Shihezi Formation.…”

Section: Introductionmentioning

confidence: 99%

Potential assessment of CCUS source and sink and its matching research of deep unworkable seam in Huainan coalfield of China

Fang,

Yu,

Zhang

et al. 2024

Preprint

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It is of great significance for the engineering popularization of CO2-ECBM technology to evaluate the potential of CCUS source and sink and study the matching of pipeline network of deep unworkable seam. In this study, the deep unworkable seam was taken as the research object. Firstly, the evaluation method of CO2 storage potential in deep unworkable seam was discussed. Secondly, the CO2 storage potential was analyzed. Then, the matching research of CO2 source and sink was carried out, and the pipe network design was optimized. Finally, this study puts forward suggestions on the design of pipeline network from the perspective of time and space scales. The results show that the average annual CO2 emissions of coal-fired power plants vary greatly, and the total emissions are 58.7608 million tons. The CO2 storage potential in deep unworkable seam is huge with a total amount of 762 million tons, which can store CO2 for 12.97 years. During the 10-year period, the deep unworkable seam can store 587.6 million tons of CO2, and the cumulative length of pipeline is 251.6129 km with requiring a cumulative capital of 4.26*1010 dollars. In the process of CCUS source-sink matching, the cumulative saving mileage of carbon sink is 98.7502 km, and the cumulative saving cost is 25.669 billion dollars with accounting for 39.25% and 60.26% of the total mileage and cost, respectively. Based on the three-step approach, the whole line of CO2 source and sink in Huainan coalfield can be completed by stages and regions, and all CO2 transportation and storage can be realized. CO2 pipelines include gas collection and distribution branch lines, intra-regional trunk lines, and interregional trunk lines. Based on the reasonable layout of CO2 pipelines, a variety of CCUS applications can be simultaneously carried out, intra-regional and inter-regional CO2 transport network demonstrations can be built, and integrated business models of CO2 transport and storage can be simultaneously built on land and sea. The research results can provide reference for the evaluation of CO2 sequestration potential of China's coal bases, lay a foundation for the deployment of CCUS clusters, and promote the realization of China's dual-carbon strategy.

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A new approach of history matching coalbed methane pilot wells

Duan

Xia

et al. 2019

Arab J Geosci

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Prediction of coal-bearing strata characteristics using multi-component seismic data—a case study of Guqiao coalmine in China

Cited by 7 publications

References 18 publications

Effect of anisotropy, angle, and critical tensile stress and confining pressures on evaluation of shale brittleness index — Part 1: Methodology and laboratory study

Effect of anisotropy, angle, and critical tensile stress and confining pressures on evaluation of shale brittleness index — Part 1: Methodology and laboratory study

Potential assessment of CCUS source and sink and its matching research of deep unworkable seam in Huainan coalfield of China

A new approach of history matching coalbed methane pilot wells

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