Results 141 to 150 of about 30,243 (255)

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

Study on crude oil displacement efficiency by fracturing fluid in tight sandstone reservoir. [PDF]

PLoS One
Li J, Gao X, Yang L, Gong J, Duan T, Song F, Zhao J.   +6 more
europepmc   +1 more source

Mapping of seleniferous vegetation and associated soils in the Lower Wasatch Formation, Power River Basin, Wyoming [PDF]

There are no author-identified significant results in this ...
Kolm, K. E.
core   +1 more source

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, EarlyView.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source

Experimental investigation into vertical extension behavior of coal-measure tight sandstone reservoirs. [PDF]

Sci Rep
Mingren S, Bin L, Peng W, Kunjian W, Qi Y, Zening S, Qi A.   +6 more
europepmc   +1 more source

Study on failure mechanism of tight sandstone based on moment tensor inversion. [PDF]

Heliyon, 2023
Dang Y, Yang Z, Zhu H.
europepmc   +1 more source

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, EarlyView.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 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

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, EarlyView.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

Analysis of the controlling factors of resistivity fluctuations in tight sandstone reservoirs of the Hangjinqi gas field, Ordos basin. [PDF]

Sci Rep
Liu L, Huang G, Ding H, Li G, Ma S.
europepmc   +1 more source