ELEMENT

• US 20190316438A1
• Filed: 04/17/2018
• Published: 10/17/2019
• Est. Priority Date: 04/17/2018
• Status: Active Grant

• Current Assignee: Baker Hughes Holdings LLC (Baker Hughes Company)
• Original Assignee: Baker Hughes, a GE Company, LLC (Baker Hughes Company)
• Inventors: Parekh, Yash, Xu, YingQing, Russell, Ronnie, Pratt, Barbara
• Granted Patent: US 10,689,940 B2
• Time in Patent Office: Days
• CPC Class Codes: E21B 33/12 Packers; Plugs used for cementing E21B33/134, E21B33/16
• CPC Class Codes: E21B 33/1208 characterised by the construction of the sealing or packing means E21B33/1277 takes precedence
• CPC Class Codes: E21B 33/128 with a member expanded radially by axial pressure E21B33/122, E21B33/124 take precedence
• CPC Class Codes: E21B 33/1291 anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks E21B33/1295 takes precedence
• CPC Class Codes: E21B 33/134 Bridging plugs
• CPC Class Codes: F16J 15/18 with stuffing-boxes for elastic or plastic packings
• CPC Class Codes: F16L 55/11 Plugs F16L55/128 takes precedence

Abstract

An element including an undercut in the element extending from an innermost surface of the element radially outwardly into the element, and a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element to the undercut prior to setting of the seal.

Claims

1. An element comprising:

an undercut in the element extending from an innermost surface of the element radially outwardly into the element; and

a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element to the undercut prior to setting of the seal.

2. The element as claimed in claim 1 further comprising a lip that is dimensioned to be 0.1% to 70% of the radial thickness of a remainder of the element.

3. The element as claimed in claim 1 wherein the lip includes an undersurface that creates a fluid tight fit with a separate component.

4. The element as claimed in claim 2 further comprising a ramp extending from the lip to an outside surface of the element, the undercut being at least partially located radially inwardly of the ramp.

5. The element as claimed in claim 1 wherein the undercut is fully annular.

6. The element as claimed in claim 1 wherein the undercut is part annular.

7. The element as claimed in claim 1 wherein the pathway is a plurality of pathways.

8. The element as claimed in claim 1, further including a fluid path at a trailing end of the element.