Results 31 to 40 of about 720 (173)

Transient Temperature Impact on Deep Reservoir Fracturing

Geofluids, 2021
Hydraulic fracturing enables the commercial development of unconventional resources in shales and tight formations. The conductivity and complexity of created fractures are critically dependent on the rheology of fracking fluid and the mechanics ...
Yu Jiang, John E. Killough, Xingru Wu, Yongzheng Cui   +3 more
doaj   +1 more source

Results of Scientific and Technical Supervision of Hydraulic Fracturing Operations

Georesursy, 2017
The paper presents actual results of the research conducted as part of a field pilot project which consisted in interpretation of minifrac test data and evaluation of the efficiency of the scientific and technical supervision of fracking operations.
I.Kh. Makhmutov, O.V. Salimov, I.I. Girfanov, R.Z. Zayatdinov, A.U. Mansurov, A.V. Kochetkov   +5 more
doaj   +1 more source

Bring Out the Bulls: Employment Dynamics of Incumbent Trucking Firms During Highly Expansive Market Conditions

Transportation Journal, Volume 65, Issue 4, Autumn 2026.
ABSTRACT Studying employment dynamics (e.g., the rates at which firms add or shed jobs) of trucking firms is critical to inform theory and public policy. We examine incumbent trucking firm employment dynamics during the highly expansive period of March 2020–March 2021, when the COVID‐19 pandemic delivered an exogenous shock, upending established ...
Jason W. Miller, Jonathan Phares, Stephen V. Burks   +2 more
wiley   +1 more source

Prospects of "Slate Revolution" and Problem of Power Industry of China

Vestnik MGIMO-Universiteta, 2013
The remarkable results of “shale gas revolution” in the USA have provoked a huge interest in Chinese energy circles. Beijing seriously considers the prospects of developing its abandoned domestic shale gas resources, which might result in a second “shale
M. Scryabina
doaj   +1 more source

Partisan Cities: How State‐Local Political Alignment Shapes Credit Risk and Information Processing in the Municipal Bond Market

Journal of Accounting Research, Volume 64, Issue 4, Page 1733-1770, September 2026.
ABSTRACT This paper studies how partisan alignment between city leaders and state governors shapes information processing and bond pricing in the municipal bond market. Using a novel data set on 1,045 U.S. cities from 2005 to 2019, we show that cities with the same political affiliation as the state governor face 9 basis points lower borrowing costs ...
RAMONA DAGOSTINO, ANYA NAKHMURINA
wiley   +1 more source

Hydraulic fracturing considerations: Insights from analogue models, and its viability in Colombia

Earth Sciences Research Journal, 2019
Fracking is being considered around the world as a potential method in the hydrocarbons extraction given the increase of production in USA and Canada during the last years with its implementation.
Dilan Arturo Martínez-Sánchez, Giovanny Jiménez Díaz   +1 more
doaj   +1 more source

Nordgren PINNs to VQE: Advancing Hydraulic Fracturing Simulations in Shale Reservoirs

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 12, Page 4863-4878, 25 August 2026.
ABSTRACT This study advances hydraulic fracturing simulations in shale reservoirs using two computational paradigms, Physics‐Informed Neural Networks (PINNs) and the Variational Quantum Eigensolver (VQE). PINNs were employed to solve Nordgren's equation, which governs fracture width evolution, by embedding physical laws into the neural network ...
Dennis Delali Kwesi Wayo, Sonny Irawan, Mohd Zulkifli Bin Mohamad Noor, Mudasar Zafar, Shynar Juziyeva, Camila Martins Saporetti, Leonardo Goliatt, Randy Hazlett   +7 more
wiley   +1 more source

Transfer Learning and Benchmarking for Induced Seismic Event Detection: Insights From Oklahoma

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Machine learning models for microseismicity detection are often limited by the scarcity of large and high‐quality labeled data sets in many regions. To address this need, we introduce the Oklahoma Labeled AI Dataset (OKLAD), a manually curated data set compiled by the Oklahoma Geological Survey (OGS).
Hongyu Xiao, Jacob I. Walter, Paul Ogwari, Long M. Ho, Andrew D. Thiel, Nicholas Gregg, Brandon Mace, Isaac Woelfel   +7 more
wiley   +1 more source

Stochastic Risk and Uncertainty Analysis for Shale Gas Extraction in the Karoo Basin of South Africa

Abstract and Applied Analysis, 2014
We made use of groundwater flow and mass transport equations to investigate the crucial potential risk of water pollution from hydraulic fracturing especially in the case of the Karoo system in South Africa.
Abdon Atangana, Gerrit van Tonder
doaj   +1 more source

The “Fracking” technique: a novel approach to crack deep calcified plaque in the common femoral artery with hydraulic pressure

CVIR Endovascular, 2021
Background The patency achieved by conventional peripheral interventions for atherosclerotic lesions in the common femoral artery (CFA), called the “no stenting zone”, is not superior to that achieved by surgical endarterectomy due to calcified plaque ...
Takuya Haraguchi, Tsutomu Fujita, Yoshifumi Kashima, Masanaga Tsujimoto, Tsuyoshi Takeuchi, Yutaka Tadano, Daisuke Hachinohe, Umihiko Kaneko, Ken Kobayashi, Daitaro Kanno, Katsuhiko Sato   +10 more
doaj   +1 more source