Results 21 to 30 of about 568,250 (204)

The Effect of Drilling Mud Flow on the Lateral and Axial Vibrations of Drill String

open access: yesASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 5, 2010
In this research, the effects of drilling mud flow and WOB force on the lateral vibration of drill string are investigated. To this goal, the kinetic and potential energy of drill string for axial and lateral vibrations are written in an integral ...
Ali Asghar Jafari   +2 more
core   +2 more sources

Adaptive Control of Drill String Vibrations [PDF]

open access: yesChemical and Petroleum Engineering, 2019
The basic principles and methods of drill string vibration control are studied. The prospects of development of a semiactive vibration damping method are shown. The principle of semiactive vibration damping developed by the authors using the Matlab Simulink graphical programming environment for modeling is studied.
É. A. Petrovskii   +2 more
openaire   +3 more sources

Stick-Slip Vibration Analysis and Drilling Parameter Optimization of Horizontal Well Drill String System

open access: yesShiyou jixie
Stick⁃slip vibration is one of the main vibration forms in the process of horizontal well drilling, and usually leads to adverse consequences such as reduction of bit cutting efficiency and failure of drilling tools.
Li Wenzhe   +5 more
doaj   +2 more sources

Stress Analysis on Drilling String Vibration in Gas Drilling

open access: yesEnergy Procedia, 2012
AbstractUsing the finite element method, attempting to solve the serious drilling tools failure in gas drilling, this paper modelled the transient response of string vibration, and worked out the distribution regularity of the transient stress at two different drilling states: gas and mud drilling.
Jianhong, Fu   +6 more
openaire   +1 more source

A REVIEW DYNAMIC VIBRATION ON DRILL STRING IN DRILLING OPERATION

open access: yesSebatik, 2019
For decades, researchers have investigated the phenomenon of vibrations in drilling activities. One of the interesting things is the vibration in the drillstring. Vibration might be caused by Interfere with each other between the drilling mud and drilling string, contact forces between the drillstring and wellbore, and interfere with each other between
Afriansyah Afriansyah, Hasan Basri
openaire   +2 more sources

Vibration Characteristics Study of Drill String Based on Rotary-impact Drilling Tool in Horizontal Well [PDF]

open access: yesJournal of Petroleum Science and Technology, 2021
To address the problems of large drilling friction and low rate of penetration (ROP) in the drilling process of horizontal well, the vibration characteristics research of drill string is conducted on the basis of rotary-impact.
Jialin Tian   +3 more
doaj   +1 more source

Study on Three-Dimentional Vibration Response Characteristics of Drilling String in Deepwater Riserless Drilling

open access: yesShiyou jixie, 2022
In deepwater riserless drilling system,drill string in seawater is affected by external ocean load,torque of top rotary table and bottom bit-formation force,so it is prone to vibrate in the three directions of longitudinal,transverse,and torsional,making
Liu Jun   +3 more
doaj  

An impedance approach to reduce the contact-instability whilst drilling with active heave compensation [PDF]

open access: yes, 2012
The bit-bounce, or contact-instability, phenomenon which occurs in the drill string suspended from a floating vessel with an active drill string compensator to maintain a steady weight on the drill bit is investigated.
Hatleskog, Jan, Dunnigan, Mathew Walter
core   +1 more source

On physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations

open access: yesPetroleum, 2020
This paper introduces physical models of drill string whirling and torsional vibrations and analyses the physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations: “V.I. Gulyayev, L.V.
Zifeng Li, Chaoyue Zhang, Guangming Song
doaj   +1 more source

Vibration and Control Characteristics of Downhole Drill String System

open access: yesShiyou jixie, 2022
Stick slip vibration seriously affects the life of drill string system,prolongs the drilling cycle,and endangers the safety of staff.In order to solve the problem of stick slip vibration caused by linear torque load and friction load in drilling ...
Ma Sunan   +6 more
doaj  

Home - About - Disclaimer - Privacy