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Spectral narratives of microstructural restyling and their controls on hydrocarbon generation potential from coal: 《International Journal of Coal Science & Technology》2023年第3期167-189,共23页Tushar Adsul Santanu Ghosh Anwita Ojha Sudip Bhattacharyya Atul Kumar Varma; The low to medium-rank Tertiary coals from Meghalaya,India,are explored for the first time for their comprehensive micro-structural characterization using the FTIR and Raman spectroscopy.Further,results from these coa...; 关键词：Early mature oil generation Meghalaya high-sulfur coal Type II-S kerogen Microstructural ordering Coalification jump Hydrocarbon generation potential

Experimental and numerical study of coal mechanical properties during coalification jumps: 《Frontiers of Earth Science》2023年第1期45-57,共13页Qiang HUANG Xuehai FU Jian SHEN Qiangling YAO Ming CHENG; This study was supported by the National Natural Science Foundation of China(Grant Nos.42072191 and 42072190);Hebei Natural Science Foundation Project(No.E2020209074);Shanxi Province Science and Technology Plan unveiling and bidding project(No.20201101003);Prospective Basic Technology Key Project of CNPC during the“Fourteenth Five-Year Plan”(No.2021DJ2302).; The mechanical characteristics of coal reservoirs are important parameters in the hydraulic fracturing of coal.In this study,coal samples of different ranks were collected from 12 coal mines located in Xinjiang and Sh...; 关键词：compressive strength elastic modulus confining pressure Poisson’s ratio coalification jump

Coalbed methane desorption characteristics controlled by coalification and its implication on gas co-production from multiple coal seams: 《Frontiers of Earth Science》2023年第1期121-134,共14页Bin ZHANG Yafei ZHANG Suping ZHAO Wei HE Shu TAO Zhejun PAN Yi CUI; This work was supported by the National Natural Science Foundation of China (Grant Nos. 42130802, 41772132), the Major Projects of Ningxia Key Research and Development Plan (No. 2020BFG2003);the Fundamental Research Funds for the Central Universities (No. 2652019095);the Key Technologies R&D Programme of PetroChina Company Limited (No. 2021DJ2306).; In this work,CH4 isothermal adsorption measurements were carried out on 64 coal samples collected from western Guizhou Province of China,and the coalbed methane(CBM)desorption processes were quantitatively analyzed.Th...; 关键词：co-production from multiple coal seams CBM adsorption DESORPTION coal rank

Enigmatic Glass-Like Carbon from the Alpine Foreland, Southeast Germany: A Natural Carbonization Process: 《Acta Geologica Sinica(English Edition)》2018年第6期2179-2200,共22页Tatyana G. SHUMILOVA Sergey I. ISAENKO Vasily V. ULYASHEV Boris A. MAKEEV Michael A. RAPPENGLüCK Aleksey A. VELIGZHANIN Kord ERNSTSON; supported for the Russian team members by the RFBR, Project # 17-05-00516; Unusual carbonaceous matter, termed here chiemite, composed of more than 90% C from the Alpine Foreland at Lake Chiemsee in Bavaria, southeastern Germany has been investigated using optical and atomic force microscopy...; 关键词：ASTROBIOLOGY diamond CARBYNE COALIFICATION CARBONIZATION meteorite impact chiemite

Coalification and coal alteration under mild thermal conditions被引量：1: 《International Journal of Coal Science & Technology》2018年第3期358-373,共16页Pavel Straka Ivana Sykorova; Coalification temperatures are often considered to be approximately 100-170 ℃ for bituminous coal and 170-275 ℃ for anthracite. However, our micropetrographic observations, solid state ^27Al magic-angle spinning nuc...; 关键词：COALIFICATION Thermal and oxidative alteration Kladno-Rakovn Basin - Al complexes ^27Al MAS NMR Fluid inclusions Δ^13C Whewellite

The influence of intensity and properties of tectonic stress on the process of coalification被引量：1: 《Journal of Coal Science & Engineering(China)》2012年第2期158-162,共5页WANG Zhi-rong JIANG Bo CHEN Ling-xia; Through the research on stress metamorphism character of the II1 coal seam in Ludian gliding structure, the stress effecting factors of metamorphism and hydrocarbon generation process of tectonic coal were studied. It...; 关键词：tectonic stress gliding structure coal metamorphism and hydrocarbon generation process gas geological hazards

Influence of tectonic stress on coalification:Stress degradation mechanism and stress polycondensation mechanism被引量：38: 《Science China Earth Sciences》2007年第1期43-54,共12页CAO DaiYong LI XiaoMing ZHANG ShouRen; Supported by the National Natural Science Foundation of China (Grant No. 40372075);the Open Foundation Project of Key Laboratory of Coal Resources, Ministry of Education, China (Grant No. 200302); The function of pressure for coalification is a long-term controversial issue, and the main cause is that the strata pressure and the tectonic stress were confused, which are two different actions of "pres-sure" . The...; 关键词：COALIFICATION pressure factor TECTONIC STRESS degradation TECTONIC STRESS POLYCONDENSATION tectonically DEFORMED coal

Action of Coal on Metal Corrosion in Coal Mines被引量：1: 《International Journal of Mining Science and Technology》1998年第1期27-31,共5页孙智王温银沈寒领; Electrochemical corrosion behavior of metals under a variety of coal condition bas been studied in this paper. The corrosion dynamics and electrochemical parameters of metals have heen measured and the micrograph of m...; 关键词：CORROSION METAL COAL COALIFICATION POTENTIAL

Discovery and implication of Late Pleistocene soft brown coal from Tengchong Basin, Western Yunnan被引量：1: 《Chinese Science Bulletin》1995年第7期586-590,共5页秦勇金奎励韩德馨; The Tengchong Basin, aboat 35 km^2 in area, is a dammed-by-lava type of theintermoniane basin with peat and soft brown coal. The sedimentation in the basin startedbefore 380 ka B. P., and the maximum thickness of the ...; 关键词：Tengcbong BASIN Late PLEISTOCENE SOFT BROWN coal early ANOMALOUS coalification.

THE DISCOVERY AND SIGNIFICANCE OF BENZENE VAPOUR FROM COAL SEAMS, CHINA: 《Chinese Science Bulletin》1991年第21期1806-1810,共5页吴俊; Ⅰ. SAMPLES AND EXPERIMENT To study the composition of the coaibed gas, 139 coal samples containing gas from some important coalfields in China were analysed. They were taken from newly driven and mined faces. Since i...; 关键词：coalbed GAS COALIFICATION BENZENE VAPOUR

COALIFICATION