METHOD AND LOAD ANALYSIS FOR MULTI-OFF-CENTER TOOLS

摘要

Various embodiments include apparatus and methods to perform a load analysis for multi-off-center tools. Off-center components of a completion string experience additional downhole side and drag forces due to contact with casing and liner walls which may lead to excessive loading and stresses leading to failures. Systems and techniques are provided to analyze such situations. Additional apparatus, systems, and methods are disclosed.

主权项

1. A method comprising:
operating a processor to perform operations including:
applying a continuous string model to a completion string having a plurality of components including an off-center component;conducting a force analysis at the off-center component and at a number of the components of the plurality of components based on the continuous model;preparing and solving a force balance equation set based on the force analysis; anddetermining a side force on the off-center component and on each of the number of components based on the force balance equation set.