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This collection reports on the state of the art in fundamental discipline application in hydrocarbon production and associated challenges in geoengineering activities. Zheng et al. (2022) report an NMR-based method for multiphase methane characterization in coals. Wang et al. (2022) studied the genesis of bedding fractures in Ordovician to Silurian marine shale in the Sichuan basin. Kang et al. (2022) proposed research focusing on the prediction of shale gas production from horizontal wells. Liang et al. (2022) studied the pore structure of marine shale by adsorption method in terms of molecular interaction. Zhang et al. (2022) focus on the coal measures sandstones in the Xishanyao Formation, southern Junggar Basin, and the sandstone diagenetic characteristics are fully revealed. Yao et al. (2022) report the source-to-sink system in the Ledong submarine channel and the Dongfang submarine fan in the Yinggehai Basin, South China Sea. There are four papers focusing on the technologies associated with hydrocarbon productions. Wang et al. (2022) reported the analysis of pre-stack inversion in a carbonate karst reservoir. Chen et al. (2022) conducted an inversion study on the parameters of cascade coexisting gas-bearing reservoirs in coal measures in Huainan. To ensure the safety CCS, Zhang et al (2022) report their analysis of available conditions for InSAR surface deformation monitoring. Additionally, to ensure production safety in coal mines, Zhang et al. (2022) report the properties and application of gel materials for coal gangue control.

Technology: general issues --- History of engineering & technology --- gel–foam --- chitosan --- acrylic acid --- coal gangue --- InSAR monitoring --- carbon capture and storage --- feasibility assessment model --- low-field NMR --- coal --- free methane --- paramagnetic mineral --- submarine channel --- submarine fan --- source-to-sink --- gas reservoirs --- South China Sea --- Yinggehai Basin --- pore structure --- shale gas --- N2 adsorption experiment --- molecular simulation --- pore connectivity --- tight sandstone --- coal measure --- southern margin of Junggar basin --- diagenetic process --- reservoir quality control --- reservoir forming --- carbonate cavern reservoir application --- pre-stack inversion --- model --- grey correlation method --- multiple linear regression --- production evaluation --- main control factor --- estimated ultimate recovery --- coalbed methane (CBM) --- prestack seismic inversion --- brittle index --- gas-bearing property --- fractures --- complex fracture net --- formation of bedding --- Fuling area

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Dear colleagues, Geological energy has a long history in China. As early as 500 BC, China began to use coal as fuel. In the middle of the 19th century, China began to develop oil resources. After the foundation of new China, with the discovery of the Daqing oilfield, China's oil industry entered an era of great development. During the 21st century, with the development of drilling technology, the development of unconventional energy such as shale gas and shale oil has entered a new era. In recent years, the development of flammable ice has set off a wave of clean energy. With the carbon reduction plan proposed by the Chinese government, clean geo-energy has been granted unparalleled development space in the future. China's geo-energy development technology used to lag behind that of major developed countries for a long time, but after years of development, it has become the world's leading edge in some fields. Therefore, we specially set up this collection to collect China's advanced geo-energy exploitation technology and development trends, whilst providing some new directions for thinking about geo-energy development in China and even the world. This collection seeks to contribute to such topics through enhanced scientific and multidisciplinary knowledge.

airflow reversal --- gas outburst --- mine ventilation system --- orthogonal experiment --- numerical simulation --- deep chamber --- asymmetric failure --- mechanical analysis --- control measures --- Yinggehai --- overpressure --- hydraulic fracture --- mudstone --- fluid pressure --- red sandstone --- pre-existing cracks --- creep behavior --- temperature --- long-term permeability --- partial saturation --- patchy saturation --- squirt flow --- P-wave velocity dispersion and attenuation --- anelasticity --- ultrasonic measurements --- heavy oil reservoirs --- cyclic steam stimulation --- conformance control --- extreme gradient boost (XGBoost) trees --- prediction model --- Dongsha Waters in the northern South China Sea margin --- velocity inversion --- mud volcano --- magma intrusion --- Mesozoic hydrocarbon --- tubing --- modal analysis --- fluid-structure interaction --- inlet pressure --- pipeline --- water hammer --- gas-liquid two-phase flow --- pressure --- velocity --- lattice Boltzmann method --- discrete element method --- sand production --- force chain network analysis --- seismic sedimentology --- sedimentary facies evolution --- peat accumulation regularity --- frequency–division amplitude fusion --- thin sand bodies --- stable crack propagation --- crack strain --- stress–strain curve --- model --- wing crack --- outburst coal --- primary coal --- structural parameters --- infrared spectrum --- XRD --- oil shale --- in situ conversion project --- biomarker --- pyrolysis process --- organic geochemistry

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Dating and geochemical analyses of detrital minerals (mainly zircons) combined with traditional methods, such as heavy minerals and sandstone modes, are a powerful tool in paleogeographic and paleotectonic research and industrial applications.

Research & information: general --- detrital zircon U-Pb geochronology --- bulk geochemistry --- provenance --- tectonic setting --- West Bogeda Shan --- U-Pb geochronology --- detrital zircon --- source-to-sink --- provenance analysis --- mixing model --- sediment budgeting --- east China seas --- Pennsylvanian --- Sino-Korean Block --- detrital zircons --- U–Pb ages --- subduction zones --- U–Pb dating --- sandstone petrography --- peripheral bulge --- tectonics --- zircon U-Pb ages --- muscovite 40Ar/39Ar ages --- sediment provenance --- Yangtze River --- detrital-zircon age spectrum --- Ereendavaa terrane --- Mongol-Okhotsk orogenic belt --- opening of the Mongol-Okhotsk ocean --- northeastern Mongolia --- Lu-Hf isotopes --- early Miocene --- Yinggehai-Song Hong Basin --- South China Sea --- stratigraphic thicknesses --- net sand to gross thickness ratio --- conglomerate percentage --- heavy mineral analysis --- detrital zircon U‒Pb geochronology --- Intermontane basin --- Mongolia --- laser ablation U-Pb dating --- Hafnium isotope-ratio --- terrane definition --- paleotectonic reconstruction --- Western Andes --- Miocene --- Silante Formation --- Ecuador --- compositional heterogeneity --- major element --- nonmarine basin --- gejiu basalts --- zircon U–Pb dating --- geochemistry --- Sr–Nd–Pb isotope --- petrogenesis --- Cameroon --- Meiganga --- gold placer --- trace element --- geochronology --- Archean-Proterozoic origins --- zircon crystal morphology --- zircon textures --- zircon trace elements --- alteration of zircon --- REE in zircon --- rare metal granites --- Li-F granites --- Western Hercynian Meseta --- Permian basin --- Tiddas Souk Es-Sebt des ait ikko volcanic basin --- U–Pb geochronology --- mineralogy --- petrology --- n/a --- U-Pb ages --- U-Pb dating --- zircon U-Pb dating --- Sr-Nd-Pb isotope

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Dating and geochemical analyses of detrital minerals (mainly zircons) combined with traditional methods, such as heavy minerals and sandstone modes, are a powerful tool in paleogeographic and paleotectonic research and industrial applications.

Research & information: general --- detrital zircon U-Pb geochronology --- bulk geochemistry --- provenance --- tectonic setting --- West Bogeda Shan --- U-Pb geochronology --- detrital zircon --- source-to-sink --- provenance analysis --- mixing model --- sediment budgeting --- east China seas --- Pennsylvanian --- Sino-Korean Block --- detrital zircons --- U-Pb ages --- subduction zones --- U-Pb dating --- sandstone petrography --- peripheral bulge --- tectonics --- zircon U-Pb ages --- muscovite 40Ar/39Ar ages --- sediment provenance --- Yangtze River --- detrital-zircon age spectrum --- Ereendavaa terrane --- Mongol-Okhotsk orogenic belt --- opening of the Mongol-Okhotsk ocean --- northeastern Mongolia --- Lu-Hf isotopes --- early Miocene --- Yinggehai-Song Hong Basin --- South China Sea --- stratigraphic thicknesses --- net sand to gross thickness ratio --- conglomerate percentage --- heavy mineral analysis --- detrital zircon U‒Pb geochronology --- Intermontane basin --- Mongolia --- laser ablation U-Pb dating --- Hafnium isotope-ratio --- terrane definition --- paleotectonic reconstruction --- Western Andes --- Miocene --- Silante Formation --- Ecuador --- compositional heterogeneity --- major element --- nonmarine basin --- gejiu basalts --- zircon U-Pb dating --- geochemistry --- Sr-Nd-Pb isotope --- petrogenesis --- Cameroon --- Meiganga --- gold placer --- trace element --- geochronology --- Archean-Proterozoic origins --- zircon crystal morphology --- zircon textures --- zircon trace elements --- alteration of zircon --- REE in zircon --- rare metal granites --- Li-F granites --- Western Hercynian Meseta --- Permian basin --- Tiddas Souk Es-Sebt des ait ikko volcanic basin --- mineralogy --- petrology