Results 221 to 230 of about 4,494 (274)

Experimental Investigation on the Rock-Breaking Efficiency of High-Pressure Jet Drill Rod Perforation in Sandstone Roof. [PDF]

ACS Omega
Li H, Yan P, Cheng Q, Chen J, Chen S, Dong T, Li B, Huang B.   +7 more
europepmc   +1 more source

Effect of Short Carbon Fiber Volume Fraction on High-Temperature Tensile Properties of SCF/2A12 Composite. [PDF]

Materials (Basel)
Wu J, Huang S, Meng Q, Yuan M, Wang S, Mao X, Qiu Y, He L.   +7 more
europepmc   +1 more source

Proximity interactome mapping furthers a role for spinophilin in protein homeostasis. [PDF]

iScience
Claeboe ET, Blake KL, Shah NR, Morris CW, Hens B, Atwood BK, Absalon S, Mosley AL, Doud EH, Baucum AJ.   +9 more
europepmc   +1 more source

Installation Error Calibration Method for Redundant MEMS-IMU MWD. [PDF]

Micromachines (Basel)
Qing Y, Wang L, Zheng Y.
europepmc   +1 more source

Glomar Challenger Drillings: The Magnetic Field Produced by the Drill and Drill String

, 1979
openaire   +1 more source

Development of an Instrumented Drill String for Measuring Drilling Forces

Volume 13: Acoustics, Vibration and Phononics, 2017
The National Institute for Occupational Safety and Health (NIOSH) Pittsburgh Mining Research Division (PMRD) conducts a wide variety of mining-related health and safety research. As part of this research, PMRD’s Workplace Health Branch maintains a Noise Control Team tasked with developing noise controls to reduce future incidences of noise-induced ...
Jeffrey Shawn Peterson, Brian Kim
openaire   +2 more sources

Drill-String Dynamics: Reduced-Order Models and Experimental Studies

Journal of Vibration and Acoustics, Transactions of the ASME, 2011
In this article, reduced-order models of a drill-string system are developed, the predictions of these models are studied, and qualitative comparisons are made with experimental studies.
Chien-Min Liao, Balakumar Balachandran, Mansour Karkoub   +2 more
exaly   +2 more sources

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Electric drill-string telemetry

Journal of Computational Physics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carcione, José M., Poletto, Flavio
openaire   +1 more source

The Study on Vibration of Drill String of ERW

2008 International Conference on Computer Science and Software Engineering, 2008
During exploitation of extended reach well (ERW) drilling engineer, the problem of drill string failure is very serious; drill string vibrations are main reasons. In this paper drill string of extended reach well of different part is object being studied. The models about various vibrations are set up. Modal vibrations of drill string are studied.
Han Chunjie, Yan Tie
openaire   +1 more source

Effects of Drill String Length on Stick–Slip Oscillation of the Oilwell Drill String

Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, 2019
It has been demonstrated by numerous field data that the stick–slip phenomenon tends to appear in deep wells. However, the explanation for this phenomenon has scarcely been studied. Based on a torsional pendulum model, the relationship between stick–slip oscillation and drill string (DS) length is studied in this work.
Liping Tang, Xiaohua Zhu
openaire   +1 more source