Results 171 to 180 of about 4,394,413 (242)

Research Progress on Acidizing Techniques for Complex-Type Reservoirs. [PDF]

Molecules
Bai Y, Sun Y, Xu C, Bai M, Wu J, Cui J, Cao G, Li G.   +7 more
europepmc   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

One chemistry, many pathways: Comparing carbon-negative cement, enhanced weathering, and ocean alkalinity enhancement. [PDF]

iScience
Cheng CH, Chornkrathok S, Redfern SAT.
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

The Mechanisms and Applications of CO₂‑Elevated Fracturing in Tight Sandstone Gas Reservoirs: A Comprehensive Investigation for Enhanced Oil and Gas Recovery. [PDF]

ACS Omega
Zhao Z, Zhang Y, Huang Y, Zhang X.
europepmc   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Comparative study on the cutting performance of super-large diameter atmospheric cutterhead and pressurized cutterhead under the same stratum. [PDF]

Sci Prog
Chen P, Huang S, Shu J, Liu J, Sheng J, Lin L, Yang M.   +6 more
europepmc   +1 more source

Little Rock Fire Department collection [DIGITAL CONTENT]

This collection contains records of the Little Rock Fire Department, including ledger books and ...
Little Rock Fire Department (Little Rock, Ark.); Museum of Discovery (Little Rock, Ark.)
core  

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Preparation and Performance Evaluation of a Lost-Circulation-Control Gel for Fractured Formations. [PDF]

Gels
Zheng Y, Qiu X, Yu Z, Xiao F, Deng T, Xu P, Pu L, Liu J.   +7 more
europepmc   +1 more source