Results 71 to 80 of about 13,531 (202)

Salt Precipitation‐Driven Rock Failure Mode Transition During Geological CO2 Sequestration

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Salt precipitation has emerged as a critical factor affecting injectivity, reservoir stability, and the potential to trigger near‐wellbore microseismic activity during geological CO2 sequestration. While previous studies have primarily focused on the brine acidification induced by CO2 injection, triggering geochemical reactions in carbonate ...
Senyou An, Junjie Ju, Ji Kong, Ying Teng, Lifei Yan, Pengfei Wang, Jianbo Zhu, Heping Xie   +7 more
wiley   +1 more source

Observations of the seasonality of the Antarctic microseismic signal, and its association to sea ice variability [PDF]

, 2011
International audienceSeismic noise spectra at all seismic stations display two peaks in the 1-20 s period band, called primary and secondary microseisms. They are caused by the coupling of ocean waves into Rayleigh waves. At most locations, microseismic
Grob, Mélanie, Maggi, Alessia, Stutzmann, Eléonore   +2 more
core   +4 more sources

Ambient‐Noise Multicomponent Multimodal Dispersion Characteristics in Thick Sedimentary Basins

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Ambient noise cross‐correlations enable the extraction of multimodal surface waves, yet resolving their complex dispersion characteristics is essential for robust subsurface imaging. Using dense array data from the North China Plain, we resolve multicomponent multimodal Rayleigh and Love wave dispersion with unprecedented detail.
Gongheng Zhang, Chunquan Yu, Zhengbo Li, Xiaofei Chen, Caiwang Shi, Xuping Feng, Fanchang Meng, Bo Li   +7 more
wiley   +1 more source

Near‐Field Acoustic Imaging Using Fiber‐Optic Distributed Acoustic Sensing and Beamforming Techniques

Advanced Science, Volume 13, Issue 6, 30 January 2026.
This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto, Diego Badillo‐San‐Juan   +1 more
wiley   +1 more source

Impact of Inter‐Well Stress Interference on Multifracture Propagation in Tight Reservoirs

Energy Science &Engineering, Volume 14, Issue 1, Page 347-363, January 2026.
This study presents a integrated computational‐experimental framework for modeling complex fracture propagation. Using a novel cell‐based fracture element approach with defined geometric and mechanical parameters, we simulate crack paths under varying stress conditions (e.g., SH‐Sh = 130 psi).
Xiangwu Bai, Zhiping Li, Fengpeng Lai, Chunyan Liu   +3 more
wiley   +1 more source

Crustal Structure Across the Okavango Rift, Botswana: The SEISORZ Wide‐Angle Seismic Experiment

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract The Okavango Rift Zone (ORZ) is an incipient continental rift in Botswana at the terminus of the Southwestern Branch of the East African Rift System. The lack of syn‐rift magmatism and tectonic processes overprinting pre‐rift structures provide an opportunity to investigate incipient‐stage rift processes and the role of pre‐existing structures
J. Pablo Canales, Lucky Moffat, Kebabonye Laletsang, Daniel Lizarralde, Steven Harder, Galen Kaip, Estella A. Atekwana, Motsoptse P. Modisi   +7 more
wiley   +1 more source

Deep Learning‐Based 3D Microseismic Event Direct Location Using Simultaneous Surface and Borehole Data

Journal of Geophysical Research: Machine Learning and Computation
Microseismic monitoring is crucial for characterizing and assessing fracture systems developed during subsurface operations like geothermal reservoir development, CO2 sequestration, and hydraulic fracturing.
Yuanyuan Yang, Omar M. Saad, Tariq Alkhalifah   +2 more
doaj   +1 more source

Microseismicity-Based Modelling of Induced Fracture Networks in Unconventional Reservoirs

Fuels
A single planar hydraulic fracture is typically the primary component used to simulate hydraulic fracturing stimulation in conventional reservoirs. However, in ultra-low-permeability shale reservoirs, a large system of fracture networks must be generated
Tri Pham, Tan Bui-Thanh, Quoc Nguyen
doaj   +1 more source

FractVis: Visualizing Microseismic Events [PDF]

, 2013
We present our efforts of applying information visualization techniques to the domain of microseismic monitoring. Microseismic monitoring is a crucial process for a number of tasks related to oil and gas reservoir development, e.g., optimizing hydraulic fracturing operations and heavy-oil stimulation.
Ahmed E. Mostafa, Sheelagh Carpendale, Emilio Vital Brazil, David Eaton, Ehud Sharlin, Mario Costa Sousa   +5 more
openaire   +1 more source

Hydraulic drive mechanism Patent [PDF]

, 1967
Hydraulic drive mechanism for leveling isolation ...
Tsutsumi, K.
core   +1 more source