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中国地质大学科学技术发展院李瑞，王生维，等，资源学院. Rock Mechanics and Rock Engineering，Geometry and Filling Features of Hydraulic Fractures in Coalbed Methane Reservoirs based on Subsurface Observations
煤层气井压裂；裂缝形态；充填特征。
2021/10/15
近期，中国地质大学资源学院王生维教授团队在岩石力学领域著名期刊《Rock Mechanics and Rock Engineering》上发表题为《Geometry and Filling Features of Hydraulic Fractures in Coalbed Methane Reservoirs based on Subsurface Observations》的研究成果。该文通过...
Hydrogen and oxygen isotopic characteristics of precipitation in coastal areas of Japan determined by observations for 23 years at Akita and for 1–2 years at other several localities
Japanese meteoric water precipitation hydrogen isotopic ratio oxygen isotopic ratio d-valu
2017/4/11
The hydrogen and oxygen isotopic characteristics of precipitation in coastal areas of Japan were explained on the basis
of a long period (23 years) observation of hydrogen and oxygen isotopic ratios ...
Morphology of the pore space in claystones–evidence from BIB/FIB ion beam sectioning and cryo-SEM observations
Morphology pore space claystones–evidence BIB/FIB ion beam sectioning
2009/10/22
The morphology of pore space has a strong effect on mechanical and transport properties of mudrocks and clay-rich fault gouge, but its characterization has been mostly indirect. We report on a study o...
Some observations on Denaea fournieri (Chondrichthyes,Symmoriiformes) from the Lower Carboniferous of Belgium
Denaea Symmoriiformes Chondrichthyes Lower Carboniferous
2009/10/20
Preliminary observations are presented concerning endoskeletal morphology in the Lower Carboniferous symmoriiform shark Denaea fournieri, and some problems in the original description are highlighted....
Glider observations of sediment resuspension in a Middle Atlantic Bight fall transition storm
Glider observations sediment resuspension Middle Atlantic Bight fall transition storm
2014/5/16
In October of 2003 a fleet of autonomous underwater gliders began a time series of transects across the New Jersey shelf. The gliders are equipped with a conductivity-temperature-depth sensor, and som...
Experimental observations of the effects of bacteria on aluminosilicate weathering
observations bacteria aluminosilicate weathering
2012/4/1
Mineral dissolution experiments using batch cultures of soil and groundwater bacteria were monitored with solution chemistry and various microscopic techniques to determine the effects of these organi...
Structural phase transition near 825 K in titanite: Evidence from infrared spectroscopic observations
Structural phase transition 825 K titanite Evidence infrared spectroscopic observations
2012/4/1
We report the direct experimental observation of a structural anomaly near 825 K insynthetic and natural titanite samples by high-temperature, hard-mode infrared spectros-copy. The anomaly in titanite...
Observations on the geometry of etched fission tracks in apatite: Implications for models of track revelation
Observations geometry of etched fission tracks apatite Implications track revelation
2012/4/9
TEispaperreports observations ofetched internal {OOO1}, {lOTO},{1120}, {loT1},and {1121} surfaces of Durango apatite. Three types of surfaces are distinguished: Ptype, S type, and T type. After initia...
TEM Observations of Coherent Stacking Relations in Smectite, I/S and Illite of Shales: Evidence for MacEwan Crystallites and Dominance of 2M1 Polytypism
2M1 Polytypism Coherent Fundamental Particles Illite I/S MacEwan Crystallites Optical Diffraction Patterns SAED Smectite Stacking Relations Cross Fringes
2011/12/23
Abstract: TEM characterization of stacking relations in I/S of expanded shale samples from the Gulf Coast and Michigan Basin was carried out to address the issues of the degree of coherency and the na...
Synthesis of high-pressure hydrous magnesium silicates: Observations and analysis
Synthesis of high-pressure hydrous magnesium silicates Observations analysis
2012/4/5
Specimens ofdense high-pressure hydrous magnesium silicates, notably phase A,phase B,and superhydrous phase B,have been synthesized for use in calorimetric and spectro-scopic experiments. X-ray diffra...
A Technique for Maintaining Texture and Permanent Expansion of Smectite Interlayers for TEM Observations
Illite LR White resin R1 I/S Rectorite Smectite Transmission electron microscopy (TEM)
2011/12/1
Abstract: A process for treating smectite-bearing rock samples that utilizes LR White resin; allows TEM observation of expanded smectite interlayers and therefore preservation of original rock texture...
Transmission Electron Microscope Observations of Illite Polytypism
Illite Polytypism Transmission electron microscopy
2012/1/4
Transmission electron microscopy (TEM), including selected area electron diffraction (SAED), has been used to identify polytypes in illite, phengite and muscovite from samples representing a wide rang...
Expansion of Smectite by Laurylamine Hydrochloride: Ambiguities in Transmission Electron Microscope Observations
Expansion Illite Lattice fringe images Laurylamine hydrochloride Smectite Transmission electron microscopy
2011/11/25
Abstract: Treatment of smectite with laurylamine hydrochloride was verified to cause expansion of d(001) which may be retained and observed in ion-milled samples by transmission electron microscopy. T...
Kaolinite Synthesis. I. Crystallization Conditions at Low Temperatures and Calculation of Thermodynamic Equilibria. Application to Laboratory and Field Observations
Aluminum Hydroxide Kaolinite Synthesis Thermodynamic
2012/2/10
The equilibrium diagrams developed for Al-hydroxide and for kaolinite by Garrels and Christ (1965) have been modified by taking into account the existence of gels. From the stability zones obtained, t...
Electron Optical Observations on Marblehead Illite
Electron Optical Observations Marblehead Illite
2012/2/15
Electron optical observations on Marblehead illite showed the presence of twinned aggregates of lath-shaped crystallites. The selected area diffraction patterns of these aggregates indicate a strict o...