Results 131 to 140 of about 4,548 (230)

Explainable machine-learning-based prediction of equivalent circulating density using surface-based drilling data. [PDF]

Sci Rep
Ekechukwu G, Adejumo A.
europepmc   +1 more source

Failure Mechanism of Zonal Isolation for Cement Sheath Induced by Density Reduction Operations after Liner Casing Cementing. [PDF]

ACS Omega
Hu X, Liu S, Wen C, Wang Y, Wang Y, Zhang Y, Yang M.   +6 more
europepmc   +1 more source

Novel Formulation of Environmentally Friendly Oil Based Drilling Mud [PDF]

, 2012
Adeyemi , A.O., Ako , C. T., Ameloko, A., Fadairo, A. S. A., Falode, O.   +4 more
core   +2 more sources

Tribological Characterization of a Novel Ceramic-Epoxy-Kevlar Composite. [PDF]

Polymers (Basel)
Fouad Y, Aleid AA, Osman O, Merah N, Shaarawi A, Hijles A, Waluyo F.   +6 more
europepmc   +1 more source

Wear characteristics of zirconia-toughened epoxy/Kevlar-honeycomb composite lining for drilling casing. [PDF]

Heliyon
Fouad Y, Merah N, Azeem MA, Gasem Z, Alqutub A, Aleid AA, Osman O, Shaarawi A, Aljohar A.   +8 more
europepmc   +1 more source

Saudi calcium bentonite: a novel modifier for enhanced foamed underbalanced drilling performance.

Sci Rep
Gowida A, Elkatatny S.
europepmc   +1 more source

A review of vibration analysis and its applications. [PDF]

Heliyon
Chu T, Nguyen T, Yoo H, Wang J.
europepmc   +1 more source

Korean national Program expedition confirms rich gas hydrate deposit in the Ulleung Basin, East Sea [PDF]

, 2008
Bahk, J.-J., Holland, M., Kim, G. Y., Kwon, Y., Park, K.-P., Riedel, Michael, Rose, K., Schultheiss, P.   +7 more
core  

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Laboratory investigation of drillstring vibrations

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2009
Experimental investigations of drillstring dynamics are essential to complement the theoretical studies and to alleviate the complexity of such dynamic models. This article presents an experimental investigation using a specially designed drilling test rig.
Y A Khulief, F A Al-Sulaiman
exaly   +2 more sources

Analysis on the nonlinear lateral vibration of drillstring in curved wells with beam finite element

Communications in Nonlinear Science and Numerical Simulation, 2022
This study focuses on the nonlinear lateral vibration of drillstring in curved wells. One of the most important features of this work is that the drillstring dynamics in curved wells (including both vertical, deflecting and horizontal well structures ...
Mingjie Cai, Liangjie Mao, Xuesong Xing   +2 more
exaly   +2 more sources