Downhole completion assembly for extended wellbore imaging

Abstract

A wellbore is plugged with a downhole completion assembly configured to permit logging and/or imaging in the wellbore past the completion assembly. The completion assembly includes an annular receptacle with an upper end that is open and a lower end that is closed. The receptacle is mounted inside of a plug that blocks flow around the receptacle while flow through the receptacle is prevented by the closed lower end. The lower end projects deeper into the wellbore past the plug. A space is formed inside the receptacle by its closed lower end and sidewalls, which is accessible by an imaging/logging tool deployed from above and inserted through the open upper end. Imaging or logging from within the receptacle increases how much of the formation around the wellbore that can be imaged/logged. Examples of imaging/logging include nuclear, electro-magnetic, acoustic and for sensing characteristics such as resistivity, density, and porosity.

Dependencies are inferred from the claim text.