Results 51 to 60 of about 955 (135)

Mechanisms behind water inrush disasters induced by TBM tunneling passing through deeply buried fault fracture zones

Meitian dizhi yu kantan
ObjectivesWhile passing through a deeply buried water-rich fault fracture zone, a tunnel boring machine (TBM) frequently faces an extremely high risk of water inrushes, seriously restricting the engineering safety and efficiency.
Zhi LI, Shuning DONG, Zhiyuan SHI, Renjian TONG   +3 more
doaj   +1 more source

From deviation risk to trajectory complexity: machine learning-based deviation characterization and tortuosity analysis for wellbore quality assessment

Scientific Reports
Unintentional wellbore deviation presents persistent challenges in drilling operations, often leading to cumulative trajectory irregularities that can compromise downhole equipment reliability and production performance. This study presents an integrated
Rupom Bhattacherjee, Nayem Ahmed, Sree Sujon Sutradhor   +2 more
doaj   +1 more source

Parâmetros solo-máquina em função de doses de resíduos vegetais e profundidades de deposição de adubo em semeadura direta Parameters of soil-machine in function of the amount of cover residues and different fertilizer deposition depths in direct drilling

Engenharia Agrícola, 2009
O tráfego contínuo e inadequado de máquinas em solos sob semeadura direta tem provocado alterações dos atributos físicos e mecânicos dos solos, influenciando, dessa forma, na produtividade das culturas. O experimento foi conduzido na Estação Experimental Agronômica da Universidade Federal do Rio Grande do Sul, no município de Eldorado do Sul - RS, num ...
Karina M. Kamimura, Renato Levien, Carlos R. Trein, Henrique Debiasi, Osmar Conte   +4 more
openaire   +1 more source

Prediction of sedimentation concentration profiles in inclined suspension systems: A data-driven neural network framework. [PDF]

Sci Rep
Schimicoscki RS, Quitian-Ardila LH, Nadeem M, Garcia-Blanco YJ, Ballesteros-Ballesteros V, Calabokis OP, Germer EM, Franco AT.   +7 more
europepmc   +1 more source

Resistivity method-based rock core orientation experimental protocol. [PDF]

PLoS One
He J, Tang Z, Kang Q, Wang J, Wang L, Yao H, Zhang Q, Tian X, Chen H, Zhang L.   +9 more
europepmc   +1 more source

Impact of Temperature Variations on Shaft Wall Fracture and the Mechanical Properties of Hot Dry Rock. [PDF]

ACS Omega
Ma C, Zhang S, He Q, Zhao K, Yang C, Zhang Z.   +5 more
europepmc   +1 more source

Mechanism-Data Fused Intelligent Prediction of Build-Up Rate

Shiyou jixie
The accurate prediction of build-up rate is fundamental for wellbore trajectory control,and it directly affects the drilling efficiency of directional wells.However,due to the complexity of downhole mechanical behaviors,traditional prediction methods ...
Bai Jiashuai, Zhong Yinming, Wang Liwei, Li Zhen, Song Xianzhi, Liu Zihao, Zhu Zhaopeng   +6 more
doaj  

Research and application of quantitative model for optimal well trajectory selection. [PDF]

Sci Rep
Xiao Y, Zhou T, Su H, Li J, Song L, Kong X, Qian F.   +6 more
europepmc   +1 more source

Computer Vision for Autonomous Drill Jumbos: Detecting Non-Drillable Areas of a Mine Face. [PDF]

Sensors (Basel)
Rösgen M, Pekarski A, Ziegler M, Clausen E.   +3 more
europepmc   +1 more source

Forming Feasibility of High-Strength and Toughness Drill Pipe Joint Based on Plastic Deformation Mechanism. [PDF]

Materials (Basel)
Cao J, Wang J, Yang S, Dang N, Ren X, Zhang N.   +5 more
europepmc   +1 more source