System and method for fluid diversion and fluid isolation

摘要

A method of cementing a wellbore, comprising delivering a diversion and movable isolation tool into the wellbore and thereby at least partially isolating a first wellbore volume from a second wellbore volume, the second wellbore volume being uphole relative to the first wellbore volume, passing fluid through the diversion and movable isolation tool into the first wellbore volume, substantially discontinuing the passing of fluid through the diversion and movable isolation tool into the first wellbore volume, passing fluid through the diversion and movable isolation tool into the second wellbore volume. A diversion and movable isolation tool for a wellbore, comprising a body comprising selectively actuated radial flow ports, and a fluid isolation assembly, comprising one or more segments, each segment comprising a central ring and at least one tab extending from the central ring.

主权项

1. A method of cementing a wellbore, comprising:
delivering a diversion and movable isolation tool into the wellbore and thereby at least partially isolating a first wellbore volume from a second wellbore volume, the second wellbore volume being uphole relative to the first wellbore volume, wherein during the delivering the diversion and movable isolation tool, fluid is passed through the diversion and moveable isolation tool from the first wellbore volume to the second wellbore volume; passing fluid through the diversion and movable isolation tool into the first wellbore volume; substantially discontinuing the passing of fluid through the diversion and movable isolation tool into the first wellbore volume; wherein the substantially discontinuing the passing of fluid comprises interfacing an obturator with the diversion and movable isolation tool; passing fluid through the diversion and movable isolation tool into the second wellbore volume; and increasing a fluid pressure to disconnect the diversion and movable isolation tool from a delivery device.