Variable Length Fill Up Tool and Valve
AssigneeDrawWorks LP
InventorsAlbert Augustus Mullins, Matthew J. Hickl, Travis MacDonald
Life of this patent
Estimating the term…
Abstract
A fill up tool has an adjustable length to selectively lengthen the fill up a tool or retract to be positioned completely above the elevator so that elevator movement will not interfere with the fill up tool. The seal is fixed to the tool so that the load caused by the pressurized seal does not have to be balanced by the operating force of the piston. A full open valve is operated when the tool is extended to fill up or take flow back.
Claims21
A tubular string fill up and circulation tool assembly for placement of the string at a subterranean location, comprising:
- a mandrel having a base portion and a telescoping portion and a selectively open passage therethrough;
- an exterior seal on said base or telescoping portion for selective insertion into said string.
A method of running a tubular string to a subterranean location, comprising:
- supporting the string below a fill up and circulation tool;
- initially telescoping a part of the fill up and circulating tool into a top of said string;
- flowing fluid into said string after said initially telescoping;
- inserting a seal of said fill up and circulating tool into said string with further telescoping of said fill up and circulating tool or with lowering said fill up and circulating tool;
- circulating fluid through said string while advancing said string toward the subterranean location.
Dependencies are inferred from the claim text.