Results 221 to 230 of about 236,174 (283)

Multiphase Transient Flow in Wellbore during Shallow Hydrate Reservoir Drilling in Deep Water. [PDF]

ACS Omega
Yin B, Chen C, Feng K, Liu S, Ren M, Wang Z, Sun B.   +6 more
europepmc   +1 more source

Challenges of drilling Iran's deepest surface hole in the saddle section of Changuleh oilfield with complex structure and pressure regimes. [PDF]

Sci Rep
Jamshidi E, Saen S, Golshaghagh J, Kianoush P, Adib A, Mohammadi A.   +5 more
europepmc   +1 more source

Protocol for contactless and instantaneous line-current data exchange between MATLAB and a drone-deployable sensor on overhead transmission lines. [PDF]

STAR Protoc
Osmani K, Halimjanova M, Schulz D.
europepmc   +1 more source

Drill String Failure Analyses

, 1983
openaire   +1 more source

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.
Balakumar Balachandran, Mansour Karkoub, Chien-Min Liao   +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

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

Drilling String Vibration: Modelling and Simulation

Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering, 2018
The offshore industry has a significant impact on the global economy and it is expected to grow over the next 4 years. A crucial part of an offshore structure is the drill string. Drill strings can be seriously damaged by vibration during drilling operations. The control of vibrations in drill strings is essential.
Amat, Sergio, Henríquez Velez, Gustavo E, Légaz, María José   +2 more
openaire   +2 more sources

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

Drilling String Corrosion - A Major Drilling Problem

Journal of Canadian Petroleum Technology, 1967
Abstract The sources of drilling string corrosion are discussed, together with an economic estimate of the magnitude of this problem in our drilling industry. Problems associated with measuring the corrosion rate in drilling fluids under field conditions are reviewed.
A.S. Murray, W.E. Holman
openaire   +1 more source