Back to results
US 2014/0151026 A1Published application
Casing centralizer and method of manufacturing same
AssigneeTop-Co Cementing Products Inc.
InventorGregory James Alexander Andrigo
Life of this patent
Estimating the term…
Abstract
A casing centralizer and method according to which a body covers at least a portion of a frame. In an exemplary embodiment, the body is overmolded around the frame. In an exemplary embodiment, the casing centralizer centralizes a casing within a wellbore to facilitate oil and gas exploration and production operations.
Claims20
A casing centralizer, comprising:
- a frame, comprising:
- a first tubular member defining inside and outside surfaces;
- a second tubular member spaced axially from the first tubular member, the second tubular member defining inside and outside surfaces;
- and
- a plurality of circumferentially-spaced ribs,
- wherein each rib comprises a base portion and a distal end portion that is radially offset from the base portion,
- wherein each of the respective base portions of the ribs is connected to each of the first and second tubular members, and
- wherein the ribs extend between the first and second tubular members;
- and
- a body, comprising:
- a first portion that covers the respective distal end portions of the ribs so that the respective distal end portions are disposed radially between the first portion of the body and the first tubular member;
- and
- a second portion that covers the respective inside surfaces of the first and second tubular members so that the respective inside surfaces of the first and second tubular members are disposed radially between the respective outside surfaces of the first and second tubular members and the second portion of the body;
- wherein the frame is composed of a first material;
- and
- wherein the body is composed of a second material that is different from the first material.
13 more elements
A casing centralizer, comprising:
- a frame, comprising:
- axially-spaced first and second tubular members;
- and
- a plurality of circumferentially-spaced bars connected to each of the first and second tubular members and extending therebetween;
- and
- a body overmolded around the frame;
- wherein the frame is composed of a first material;
- and
- wherein the body is composed of a second material that is different from the first material.
6 more elements
A method of manufacturing a casing centralizer, the method comprising:
- providing a frame composed of at least a first material, wherein providing the frame comprises:
- providing a first tubular member;
- spacing a second tubular member axially from the first tubular member;
- and
- connecting a plurality of circumferentially-spaced bars to the first and second tubular members so that the bars extend between the first and second tubular members;
- and
- overmolding the frame so that a body is formed around the frame, the body being composed of at least a second material, the second material being different from the first material.
4 more elements
Dependencies are inferred from the claim text.