Patent ID: 8800650
Filing Date: 2014-08-12
Classification: E21B

Abstract:
1. A tubular assembly for use in geologic structures, comprising: a plurality of curved layers that each have a concave inner surface and a convex outer surface that are configured to overlap each other to form the tubular assembly having a circumference with an axis extending therethrough, a plurality of attachment points that secure some of the concave inner surfaces of the curved layers to the convex outer surfaces of adjacent curved layers to prevent the curved layers from moving circumferentially about the axis with respect to each other at the attachment points; and a restraining mechanism that temporarily holds the plurality of curved layers in a first diameter; wherein the plurality of curved layers are made of a high strength material allowing the curved layers to store expansive energy therein and deflect so the tubular assembly expands from the first diameter to a second diameter that is larger than the first diameter when the restraining mechanism is released.