M Mohammadzadeh - Mechanical Engineering Department, Tarbiat Modares University, Tehran, Iran
M.R Ghazavi - Mechanical Engineering Department, Tarbiat Modares University, Tehran, Iran
A Beigloo - Mechanical Engineering Department, Tarbiat Modares University, Tehran, Iran

Lack of understanding of the dynamic behavior of drillstring is the major factor of drillstring failure and wells destruction,that financial losses and a lot of time on the project will impose. Commercial software dedicated to the drillstring to the string's natural frequencies are calculated and could not provide dynamic analysis. Therefore in this research with the aid of modeling ADAMS software to analyze the dynamic behavior of the drillstring,first the design of a drillstring in the Solidworks software according to the standard model and its various components are carried out,then the designed model imported in ADAMS software,in this phase the important parameters and their influences are considered. Comparisons are made wherever possible with recorded results available in the literature. Modeling and analysis has shown the validity of the proposed model.

ADAMS Software; Drillstring; Dynamic Analysis; Modeling