Results 171 to 180 of about 2,731 (219)

Unraveling the Effects of Climate Change and Human Activity on Potential Habitat Range Shifts in Four <i>Symplocos</i> Species in China. [PDF]

Plants (Basel)
Li Z, Sun Y, Chen W, Sun C, Tao W, Tao J, Luo W, Liu J.   +7 more
europepmc   +1 more source

Evolution of Karst Geothermal Hydrochemical Characteristics and Genesis Mechanism in Northern Jinan, Shandong, Eastern China. [PDF]

ACS Omega
Wang S, Liu Z, Zhou W, Jiang Y, Ding H, Dong F.   +5 more
europepmc   +1 more source

Environmental DNA Reveals the Fish Community Structure Exhibited Instability and Trend of Miniaturization in the Xijiang River Basin of the Guizhou. [PDF]

Ecol Evol
Ma X, Huang F, Zhang R, Liu T, Zhang T, Zeng P.   +5 more
europepmc   +1 more source

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Reservoir Implications of Modern Karst Topography

AAPG Bulletin, 1999
ABSTRACT Tropical karst landscapes exhibit a predominance of positive relief features relative to the negative relief features (i.e., sink holes, dolines, etc.) of temperate karst areas and yet, paradoxically, have never been observed in the subsurface on seismic sections.
Edward G. Purdy, Dave Waltham
openaire   +1 more source

Multiscale Integration for Karst Reservoir Flow Simulation Models

SPE Europec featured at 81st EAGE Conference and Exhibition, 2019
Abstract The significant oil reserves related to karst reservoirs in Brazilian pre-salt field adds new frontiers to the development of upscaling procedures to reduce time on numerical simulations. This work aims to represent karst reservoirs in reservoir simulators based on special connections between matrix and karst mediums, both ...
Manuel Gomes Correia, João Carlos von Hohendorff Filho, Denis Jose Schiozer   +2 more
openaire   +1 more source

Hierarchical Approach to Modeling Karst and Fractures in Carbonate Karst Reservoirs in the Tarim Basin

Abu Dhabi International Petroleum Exhibition & Conference, 2019
Abstract Karst reservoirs in the Tarim Basin, northwestern China, were formed by subaerial exposure and karstification from the Ordovician formation and represent the main plays. Predicting the storage capacity and quantifying permeability heterogeneities are challenging while important for field development planning.
Feng Shen, Kuanzhi Zhao, Yintao Zhang, Yinhua Yu, Jingliang Li   +4 more
openaire   +1 more source

Residual carbonate karst reservoir reconstructed by karst planation: A case study of Ordovician paleokarst reservoir characterization in Ordos Basin, North China

Geoenergy Science and Engineering
Chenggong Zhang, Siyi Fu, Yong Han
exaly   +2 more sources

An Application of the BP Neural Network to Carbonate Karst Reservoirs Prediction

2011 Fourth International Symposium on Computational Intelligence and Design, 2011
Effective porosity is one of the most important parameters in reservoir predication, especially in the carbonate karst reservoirs. In contrast to the calculated results by conventional statistical models, the BP neural network model can predict the porosity of reservoir more accurately because of its high nonlinear mapping ability and very strong ...
Yixin Yu, Jinchuan Zhang, Zhijun Jin
openaire   +1 more source

Mechanical behavior of carbonate reservoirs with single karst cavities

Geomechanics for Energy and the Environment, 2021
Abstract In recent years, operational issues during the exploration of Pre-salt reservoirs have aroused the interest of the Brazilian oil and gas industry in studying karstification and its effect on carbonate reservoirs. Since then, a massive research effort was dedicated to the geology of the Brazilian onshore karstified carbonate formations ...
Pedro A.L.P. Firme, Roberto J. Quevedo, Deane Roehl, Leonardo C. Pereira, Caroline L. Cazarin   +4 more
openaire   +1 more source