Results 71 to 80 of about 1,054 (134)

Investigation of drillstring vibration reduction tools [PDF]

open access: yes, 2012
Drilling related problems such as drillstring vibration is an important cause of premature failure of drillstring components and drilling inefficiency. The vibration of drillstring interferes with measurement collected while drilling.
Al Dushaishi, Mohammed Fayez
core   +1 more source

Study of Stick-slip torsional vibration in Drilling Operation [PDF]

open access: yes, 2008
The purpose of this work is to analyze drill string torsional vibrations modes, and to advise on whether it is best to minimize, if not entirely eliminate these vibration or if they can be utilize to the benefit of the drilling performances.
Arob Deng Chol, Michael
core   +1 more source

Practical approach to modelling and controlling stick-slip oscillations in oilwell drillstrings [PDF]

open access: yes, 2004
Stick-slip friction-induced oscillations appearing in oilwell drillstrings are a source of failures which reduce penetration rates and increase drilling operation costs.
Navarro-López, Eva María   +1 more
core  

LATERAL VIBRATION ANALYSIS OF DRILLSTRING USING FINITE ELEMENT METHOD [PDF]

open access: yes, 2015
This project investigates lateral vibration of a drillstring under the action of weight on bit and drillstring rotation. The dominant cause of drillstring and bottom hole assembly’s failures, shocks and severe damages to borehole wall is recognized to be
A/L VADEVELOO, PIRAWIN
core  

Suppressing Axial-Torsional Coupled Vibrations in Drillstrings

open access: yes, 2013
In drilling operation, a wide variety of oscillations causing failures often arise. Torsional vibrations (stick-slip) are originated by the cutting device (bit) motion, these vibrations in turn excite axial oscillations causing a phenomenon known as bit-bouncing.
Saldivar, Belem   +3 more
openaire   +1 more source

Downhole Applications of Magnetic Sensors. [PDF]

open access: yesSensors (Basel), 2017
Gooneratne CP, Li B, Moellendick TE.
europepmc   +1 more source

Vibration Analysis of a Drillstring in Horizontal Well

open access: yesComputer Modeling in Engineering & Sciences, 2019
Xiaohua Zhu, Li Zeng, Bo Li
openaire   +1 more source

Home - About - Disclaimer - Privacy