31 Result(s)
within
Article
**-Peng Li
Mineral Resources
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Article
Inversion of array induction logs and its application
With the help of the modified geometrical factor theory, the Marquardt method was used to calculate the true electrical parameters of the formation from array induction logs. The inversion results derived from...
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Prediction of density and viscosity of ternary systems [C2q]Br+[C4q]Br+H2O, [C2q]Br+[C6q]Br +H2O, and [C4q]Br+[C6q]Br+H2O at different temperatures using their binary subsystems data
The simple equations for prediction of the density and viscosity of mixed electrolyte solutions were extended to the related properties of mixed ionic liquid solutions. The density and viscosity were measured ...
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Plugging crossflow behind oil-well casing with nitrogen foam
We studied plugging of crossflow behind oil-well casing with nitrogen foam under reservoir conditions. We have experimentally demonstrated the feasibility of the gas—liquid injection mode and suggest injecting...
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Open AccessContribution of moderate overall coal-bearing basin uplift to tight sand gas accumulation: case study of the Xujiahe Formation in the Sichuan Basin and the Upper Paleozoic in the Ordos Basin, China
Tight sand gas is an important unconventional gas resource occurring widely in different petroleum basins. In coal-bearing formations of the Upper Triassic in the Sichuan Basin and the Carboniferous and Permia...
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Open AccessSeismic fluid identification using a nonlinear elastic impedance inversion method based on a fast Markov chain Monte Carlo method
Elastic impedance inversion with high efficiency and high stability has become one of the main directions of seismic pre-stack inversion. The nonlinear elastic impedance inversion method based on a fast Markov...
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Numerical Simulation of Water Flow from the Coal Seam Floor in a Deep Longwall Mine in China
The study of groundwater flow from the coal seam floor is critical to safe mining operations in China. We developed a numerical simulation model to describe flood water pathways during mining, using the field ...
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Open AccessVisual representation and characterization of three-dimensional hydrofracturing cracks within heterogeneous rock through 3D printing and transparent models
The heterogeneity of unconventional reservoir rock tremendously affects its hydrofracturing behavior. A visual representation and accurate characterization of the three-dimensional (3D) growth and distribution...
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Open AccessHierarchy and subsurface correlation of muddy baffles in lacustrine delta fronts: a case study in the X Oilfield, Subei Basin, China
Muddy baffles are one of the major geological factors controlling the underground fluid flow as well as the remaining oil distribution. This study used detailed drilling data from the E1f1 reservoir in the X Oilf...
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Method for Fracture Network Calculations in Multi-Staged Horizontal Drilling in Shale Reservoirs
In this paper, based on the principle of superposition of acting forces, we propose a mathematical model for injected fluid-induced stress and calculate the stress distribution and SRV width vs. the stress dif...
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Open AccessReconstruction of meandering paleo-channels using dense well data, Daqing Oil Field, Songliao Basin, China
Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migratio...
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Open AccessGeochemical characteristics of the Permian marine mudstone and constraints on its provenance and paleoenvironment in the Fenghai area, Fujian Province, southeastern China
Permian marine strata have gradually become a research focus in the world. The marine strata of the Late Permian Dalong Formation (P3d) in the Fenghai area, Fujian Province, have become more and more important as...
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Open Access3D numerical simulation of heterogeneous in situ stress field in low-permeability reservoirs
Analysis of the in situ stress orientation and magnitude in the No. 4 Structure of Nanpu Sag was performed on the basis of data obtained from borehole breakout and acoustic emission measurements. On the basis ...
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Relative roles of formation and preservation on gold endowment along the Sanshandao gold belt in the Jiaodong gold province, China: importance for province- to district-scale gold exploration
The 13-km-long Sanshandao gold belt along the NNE-trending Sanshandao Fault has highly variable orogenic gold endowment along-strike. New thermochronological data from the small Cangshang gold deposit demonstr...
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Multi-scale Numerical Simulation and 3D Modeling for Deep Mineral Exploration in the Jiaojia Gold District, China
In this study, deposit- and district-scale three-dimensional (3D) fault-and-intrusion structure models were constructed, based on which a numerical simulation was implemented in the Jiaojia gold district, Chin...
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Open AccessAzimuthal elastic impedance-based Fourier coefficient variation with angle inversion for fracture weakness
Quantitative inversion of fracture weakness plays an important role in fracture prediction. Considering reservoirs with a set of vertical fractures as horizontal transversely isotropic media, the logarithmic n...
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Thermal stability and compressibility of bastnaesite
Bastnaesite (Ce0.50La0.25Nd0.20Pr0.05)CO3F is an interesting pattern family of (CO3)2− and F− co-existing phases, which is a meaningful sample to study the influence of multiple volatiles on minerals. Thermal sta...
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Numerical Analysis of No-Darcy Seepage of High-Pressure Gas Produced by Explosion in Deep Closed Geologic Body
Based on the analysis of the effect of underground closed explosion on geological bodies, a physical model of underground seepage of closed gas explosion is obtained. The model considers the changes of porosit...
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Evaluation Index System of Green Surface Mining in China
The concept of green mining is to improve the mining industry in a holistic way so that it is safe, efficient, and environmentally sustainable. The purpose of this study was to develop an evaluation index syst...
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Open AccessPhase behavior of heavy oil–solvent mixture systems under reservoir conditions
A novel experimental procedure was proposed to investigate the phase behavior of a solvent mixture (SM) (64 mol% CH4, 8 mol% CO2, and 28 mol% C3H8) with heavy oil. Then, a theoretical methodology was employed to ...
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Open AccessProbing surface interactions of underwater oleophobic polyelectrolyte multilayers
In the present work, the interaction mechanism of specific polyelectrolyte multilayers (PEMs), fabricated by layer-by-layer deposition of polydiallyldimethylammonium chloride (PDDA) and poly(sodium 4-styrenesu...
