Patent ID: 9745803
Date: 2017-08-29
CPC Classifications: E21B

Claim:
1. A centralizer, comprising: a stop collar configured to be rotationally and axially fixed to a tubular, the stop collar defining an outer diameter; a body comprising a first end collar and one or more centralizing ribs directly coupled with the first end collar and configured to centralize the tubular when installed thereon, wherein the first end collar has an inner diameter that is larger, along an entirety of the first end collar, than the outer diameter of the stop collar; a retainer coupled with the first end collar and having an inner diameter that is smaller than the outer diameter of the stop collar, wherein the retainer is configured to prevent the first end collar from sliding past the stop collar in at least one axial direction; and a second stop collar configured to be positionally fixed to the tubular, the second stop collar defining an outer diameter that is smaller than the inner diameter of the first end collar.