Results 241 to 250 of about 140,547 (299)

Caving‐enhanced geothermal system overwhelms fracturing‐ and pipe‐enhanced geothermal system in heat extraction

Deep Underground Science and Engineering, EarlyView.
Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang, Tianjiao Li, Yingchun Li, Jinlong Men, Chun'an Tang   +4 more
wiley   +1 more source

Evaluation of the impact of blast damage on tunnel surrounding rock induced by C-type cumulative tube cone angle. [PDF]

Sci Rep
Guo J, Fei H, Ji H, Bao S, Hu G, Yan Y.
europepmc   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

A clean self-diverting acid for carbonate reservoir in deep wells at high temperatures and its performance evaluation. [PDF]

Sci Rep
Gao X, Wang M, Shi X, Li B, Mao J, Valerievich PV.   +5 more
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Integrated stimulation technology for ultra deep tight sandstone gas reservoirs with ultra low permeability in Sichuan Xujiahe formation. [PDF]

Sci Rep
Li S, Long Y, Chen C, Ren H, Chang Y, Zhuo S, Yin N, Luo C, Lu W.   +8 more
europepmc   +1 more source

The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations

Deep Underground Science and Engineering, EarlyView.
Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu, Hanyi Wang, Quan Gan, Shuang Zheng   +3 more
wiley   +1 more source

Machine learning approach for prediction of TBM performance and risk of jamming in Himalayan geology using a cross-project tunnelling database. [PDF]

Sci Rep
Katuwal TB, Panthi KK, Basnet CB.
europepmc   +1 more source

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

Zincophilic, Green, Non‐Toxic Additives Modulate Lean‐Water Inner Helmholtz Layer for Enhanced Stability of Zinc Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Green, non‐toxic DMM selectively adsorbs on the zinc surface, restructuring the inner Helmholtz layer and forming a water‐lean interface that inhibits direct water‐zinc contact. Typically, advanced quartz crystal microbalance precisely quantifies this adsorption.
Jing Li, Li Li, Tao Yang, Chenkai Lu, Zhenyu Jiang, Bailin Xiang, Ziqi Cai, Jiong Zheng, Chao Su, Funian Mo, Xidong Lin   +10 more
wiley   +1 more source