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Investigation of forces of interaction of drill string lower portion with bottom hole and walls of spatially deviating well

By Yui Chzhitsin

Abstract

Subject of investigation: transverse components of the vector of a load on the drill bit and of the vector of forces pressing centralizers to the wall of a spatially deviating well. Purpose of the work: development of a mathematical model of interaction of vertical downhole non-rotating drill string assemblies with the bottom hole and walls of a spatially deviating well and development of a program for the optimization of assemblies and loads applied to the drill bit. The work confirms the hyposesis on the influence of the well spatial trajectory parameters on the transverse forces on the drill bit and centralizers. Software is developed for calculating and optimizing vertical assemblies of the downhole drill string and loads on the drill bit. Field of application: drilling of oil and gas wells at the stages of prospecting and development of oil and gas fields, drilling of ultradeep wellsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Topics: 08L - Mining, MINING
Year: 1992
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Provided by: OpenGrey Repository
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