ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Bottom hole assemblies (BHA) of oil drilling engineering were simplified as simplysupported beam, and parametric resonances of BHA in mud drilling and air drilling were studied.Lateral vibration of BHA, which was induced by bit/formation interaction, was described andreduced into Mathieu equation by means of separation of variables and Galerkin method. Modifiedstrained parameter method was adopted in stability analysis. The parametric resonance zonesexpressed by weight on bit (WOB) are presented here. It is found that drilling method, speed ofrotation (SOR), material properties, and length of compression drillstring all can influenceparametric resonance zones. So unstable responses can be avoided by adjusting these parameters
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.385-387.809.pdf
Permalink