Method and apparatus for retrieving a running tool/guideframe assembly
CA 1306669 C · Owner: Delgado, Jorge H. · Inventors: Delgado, Jorge H.; Myers, Roderick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In connecting a rigid riser to a subsea wellhead a running tool/guideframe assembly is run along the guidewires and locked onto the guideposts of the well template. Currently, at least one pair of winch wires are connected to the running tool to permit retrieval once the riser is connected. The possibilities of entanglement of four guidewires and two (or more) winch wires and other related problems are increased in deeper water applications. The present invention proposes connecting the guidewires to the guideposts using a latching mechanism. The running tool would be connected to a slide collar on the guidewire by straps or the like. Once installation of the riser was completed the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.