Patent ID: 7986145
Filing Date: 2011-07-26
Classification: E21B,G01V

Abstract:
1. A logging tool for use in a wellbore having a sensor portion for making measurements therein, comprising: a sensor portion that communicates signals with a surrounding environment as a basis for the logging tool measurements; a standoff sleeve; a non-metallic sleeve made of a material that is transparent to the measurements being made, the non-metallic sleeve having a longitudinal axis; and one or more axially elongated structural elements carried on the non-metallic sleeve to enhance the mechanical properties of the non-metallic sleeve and having physical characteristics different from the material comprising the non-metallic sleeve, wherein the structural elements are supported about the non-metalllic sleeve such that non metallic sleeve is positioned laterally between the structural elements and the longitudinal axis, and the structural elements are positioned laterally outward of an inside diameter of the non-metallic sleeve, wherein a thickness of the non-metallic sleeve is increased at a location where structural elements are placed, such that the location provides standoff from a casing or wellbore wall, wherein the standoff sleeve created a standoff between the non-metallic sleeve and a wall of the wellbore, and wherein the standoff sleeve comprises grooves, the grooves being configured to facilitate flow of wellbore fluid and cuttings in an annulus of the wellbore, wherein the one or more axially elongated structural elements comprise at least one of metallic skids, pads, rings, and buttons, wherein the one or more axially elongated structural elements do not affect measurements made by the sensor portion of the tool, and wherein the one or more axially elongated structural elements are located inside the non-metallic sleeve.