Title:
CASING EXPANDER FOR WELL ABANDONMENT
Document Type and Number:
WIPO Patent Application WO/2019/227195
Kind Code:
A9
Abstract:
A tool is provided for expanding the casing at one or more locations for arresting surface casing vent flow in an abandoned well. A setting tool is run into the bore having an expansion element supported thereon. The setting tool imparts a large axial force to radially expand the expansion element for plastically deforming the casing. A single use, pleated ring crushable expansion element can be actuated and left downhole. The pleated ring tool can be pre-charged with a highly viscous fluid, semi solid for transport, but plastic under load. A multi-use expansion element can be actuated, released, moved and actuated again at successive locations.
Inventors:
KUNZ DALE (CA)
Application Number:
PCT/CA2018/050661
Publication Date:
May 14, 2021
Filing Date:
June 01, 2018
Export Citation:
Assignee:
WINTERHAWK WELL ABANDONMENT LTD (CA)
International Classes:
E21B29/00; E21B33/13
Attorney, Agent or Firm:
PARLEE MCLAWS LLP (CGY) (CA)
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