Results 91 to 100 of about 26,237 (314)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Aspects of reservoir properties study for the Cretaceous Stryi Formation in the outcrops of the Ukrainian Carpathians

Мінеральні ресурси України
The study examines the prospects for industrial hydrocarbon potential of the Stryi Formation of the Ukrainian Carpathians, focusing specifically on the Middle Stryi Subformation.
S. S. Dumenko
doaj   +1 more source

Influences of sandstone superimposed structure and architecture on waterflooding mechanisms: A case study of Kumkol Oilfield in South Turgay Basin, Kazakhstan

Petroleum Exploration and Development, 2014
Taking the Kumkol oilfield of high water cut in the South Turgay Basin, Kazakstan as an example, this article built the architecture models of meandering river sandstones, braided river sandstones and delta sandstones, and analyzed the influence of the ...
Lun ZHAO, Jincai WANG, Li CHEN, Xi CHEN, Zifei FAN, Xiangzhong ZHANG, Zhongyuan TIAN   +6 more
doaj   +1 more source

(Table T3) Relative abundance of volcaniclastic sands and sandstones from ODP Leg 180 sites

, 2002
(Table T3) Relative abundance of volcaniclastic sands and sandstones from ODP Leg 180 ...
Robertson, Alastair H F, Timothy R Sharp (6974030), Alastair H F Robertson (6961169), Sharp, Timothy R   +3 more
core   +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

Reservoir potential of the Haymana Formation submarine-fan sandstones in the Haymana Basin of Turkey

Journal of Petroleum Exploration and Production Technology, 2019
Sedimentological and petrographic studies of the Haymana Formation sandstones identify a submarine fan in the Haymana Basin. This study is confined to outcrop samples from the submarine-fan sandstones (the L1, L2, and L3 sections) and focuses on ...
Aylin Gecer, Aynur Buyukutku, Paulo S. Caetano, Fernando T. Rocha, Mithat E. Kıbrıs, Mustafa Albayrak   +5 more
doaj   +1 more source

Detrital apatite dating from Ordovician from sandstones in the South Mayo Trough, Western Ireland

These data are trace element concentrations and U-Pb isotope ratios from detrital apatite in Ordovician sandstones in Co. Mayo in western Ireland.
O'Sullivan, Gary J, Chew, David M
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Onset of Alveolization Processes in Sandstones Exposed to Salt Weathering

Buildings
Sandstones of the Lourinhã Formation were studied. Alveolization is the major form of weathering on the façades of monuments near Peniche in the western region of Portugal. Salt weathering is an important cause of this degradation form.
Marco Ludovico-Marques, Carlos Chastre
doaj   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source