Results 211 to 220 of about 121,815 (293)

Magnetic Boreholes [PDF]

Nature, 1924
openaire   +1 more source

Quantifying Parametric Influence on Cuttings Transport in Deviated Deep Wells Using Global Sensitivity Analysis Methods

Energy Science &Engineering, Volume 14, Issue 3, Page 1398-1415, March 2026.
Cuttings transport simulation workflow. ABSTRACT Efficient cuttings transport is essential for wellbore stability and minimizing non‐productive time in deviated and horizontal wells. This study applies global sensitivity analysis (GSA) to evaluate the influence of 14 drilling parameters on cuttings transport using WellPlanTM hydraulic simulations ...
Esraa A. Refaie, Said K. El‐Sayed, Ahmed Z. Noah, Mostafa M. Abdelhafiz   +3 more
wiley   +1 more source

Composition characteristics of soft coal seams with large inclination angles and mining heights and the deformation of roadway surrounding rocks. [PDF]

Sci Rep
Sun G, Liu L, Ao Y, Hu Y, Wang S, Kang X, Liu Y.   +6 more
europepmc   +1 more source

The dual role of fracturing and elevation on the development of the weathering profile in mafic landscapes of the Andean tropics

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Eighteen boreholes in Colombia's Tropical Andes reveal elevation‐controlled Critical Zone architecture. Four‐layer weathering profiles with thick saprolite (≤48 m) form at high elevations (>1,100 m) where dense fracturing enhances permeability. Low‐elevation boreholes lack saprolite despite high fracture density, demonstrating fracturing's dual role as
Helbert Garcia‐Delgado, Gregory D. Hoke, Nicolás Pérez‐Consuegra   +2 more
wiley   +1 more source

Application of Multi-Sensor Data Fusion and Machine Learning for Early Warning of Cambrian Limestone Water Hazards. [PDF]

Sensors (Basel)
Li H, Li Y, Lin W, Yang H, Liu K.
europepmc   +1 more source

Global Comparison of Aqueous Geochemistry and Dissolved H2/CH4 in Continental Low Temperature Serpentinization–Influenced Environments

Hydrological Processes, Volume 40, Issue 3, March 2026.
Conceptual diagram of hydrological and geochemical processes within the Santa Elena Ophiolite, Costa Rica. It highlights watershed cross‐sections, soil genesis, hyperalkaline Type II waters (pH > 11.6) with calcite crust and trapped H2/CH4 gases, seepage into surface waters, storm‐impacted stream profiles, weathered vs.
Alexandra May, Ricardo Sánchez‐Murillo, Matthew O. Schrenk, Esteban Gazel, J. Maarten de Moor, Christian Birkel, Xiaoqiang Li, Danelle Carr, María Marta Chavarría   +8 more
wiley   +1 more source

Monitoring Groundwater Thermal Treatment Using a Fiber-Optic Distributed Temperature Sensing Network. [PDF]

Sensors (Basel)
Becker MW, Cason F, Ward-Baranyay M, Divine C, Munholland J, Zardouzian E.   +5 more
europepmc   +1 more source

Propoor policies for water access in Mozambican part of the Limpopo basin: example of Mabalane district. : November and December 2012 field visits report [PDF]

, 2013
Ducrot, Raphaèle
core  

Drilling Within the Critical Zone

Hydrological Processes, Volume 40, Issue 3, March 2026.
This review synthesises 30 years of critical zone drilling methodologies for studying subsurface weathering, water storage, and biogeochemical processes. We evaluate drilling techniques, sampling strategies, downhole logging, and long‐term monitoring approaches while addressing contamination control and core preservation challenges.
Amanda Donaldson, Russell P. Callahan, W. Jesse Hahm, David N. Dralle, Anders Noren, Rachel E. Breunig, Berit M. Hudson Rasmussen, Laura V. Krone, Susan L. Brantley, A. Joshua West, Lin Ma, Clifford S. Riebe, Margaret Zimmer, Ashlee Dere, Daniella Rempe   +14 more
wiley   +1 more source

Study on the Feasibility of Enhancing Gas Extraction Efficiency Based on Hydraulic Flushing Combined with Gas Injection Displacement (HF-GID): Model Development and Numerical Simulation. [PDF]

ACS Omega
Yang X, Zhang Q, Tan F, Zuo Y, Zhang Y, Dong J, Du F.   +6 more
europepmc   +1 more source