Results 81 to 90 of about 9,177 (222)

Using microseismic data recorded at the Weyburn CCS-EOR site to assess the likelihood of induced seismic activity [PDF]

, 2016
Since 2000, CO2 has been successfully injected for the purposes of both enhanced oil recovery (EOR) and carbon capture and storage (CCS) at the Weyburn oilfield.
Verdon, James
core   +2 more sources

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

An improved method for hydrofracture induced microseismic event detection and phase picking [PDF]

, 2010
The ability to detect small microearthquakes and identify their P and S phase arrivals is a key issue in hydrofracture downhole monitoring because of the low signal-to-noise ratios. We apply an array-based waveform correlation approach (matched filter)
Ay, Erkan, Kuleli, Huseyin Sadi, Song, Fuxian, Toksoz, M. Nafi, Zhang, Haijiang   +4 more
core   +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

Urban Basin Structure Imaging in Northern Los Angeles From Ambient Noise Differential Adjoint Tomography

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract We employ differential adjoint tomography to suppress the effects of uneven noise sources and image the upper crust S wave velocity structure of San Gabriel Basin, Chino Basin and San Bernardino Basin in the northern Los Angeles. A Sequential Subdomain Inversion strategy is implemented to address regional imbalance of sensitivity kernel ...
Zhanwen Li, Xin Liu, Xi Wang, Lina Gao
wiley   +1 more source

Induced Earthquakes Inhibited by Shear Thickening Fluid

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Induced seismicity is an inevitable consequence of subsurface resource development. Public concerns have been raised in cases where a surge in felt or damaging earthquakes has occurred because of industrial activity. The effective mitigation of induced earthquakes remains a major challenge despite the employment of several strategies. Here, we
Lu Wang, Yusuke Mukuhira, Yasuo Yabe, Sando Sawa, Jun Muto   +4 more
wiley   +1 more source

Rock Magnetic Responses to Creep and Stick‐Slip Deformation Processes in the Xianshuihe Fault Zone, Eastern Tibetan Plateau

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The Xianshuihe fault zone (XSHF) in southwestern China accommodates both aseismic creep and seismic slip, yet geological evidence constraining these processes remains limited. Hence, we conducted microstructural, geochemical, and rock magnetic analyses of fault‐zone materials from the Cuoniulongba River outcrop.
Lei Zhang, Haibing Li, Qiong Wu, Zhiming Sun, Yong Cao, Peng Xu, Jialiang Si   +6 more
wiley   +1 more source

Mine microseismic and electrical coupling monitoring technology

Meitan xuebao
With the increase of the depth, mining intensity and area of coal resource, the mining disturbances in the mining face can easily induce mine water inrush accidents, seriously threatening the safe mining of coal resources in China.
Shengdong LIU, Cai YANG, Jun ZHANG, Chunyang LI, Chuan REN   +4 more
doaj   +1 more source

Full-waveform Based Complete Moment Tensor Inversion and Stress Estimation from Downhole Microseismic Data for Hydrofracture Monitoring [PDF]

, 2011
Downhole microseismics has gained increasing popularity in recent years as a way to characterize hydraulic fracturing and to estimate in-situ stress state.
Song, Fuxian, Toksoz, M. Nafi
core  

Four Phenomena Observed on Microseismic Data

, 2013
Passive seismic data recorded in observation wellbores for hydraulic fracture monitoring are usually used to detect P- and S-wave arrivals from induced microseismic events. The time arrivals for these events are used to compute source locations to build a fracture location map.
openaire   +2 more sources