Off-bottom tubular shoe-track with shearable mechanisms
AssigneeSaudi Arabian Oil Company
InventorsAhmed Abdulaziz Al-Mousa, Linlin Wang
Life of this patent
Estimating the term…
Abstract
A system includes a tubular deployed in a wellbore and configured to be cemented in the wellbore, a removable shoe track removably connected to a distal end of the tubular through a shear pin and configured to deploy cement to an annulus of the tubular, and an inflatable bag disposed on the tubular and configured to inflate to seal the annulus of the tubular when the removable shoe track is sheared, using the shear pin, from the tubular after the tubular is cemented in the wellbore but before the cement has set. The removable shoe track is configured to drop to a bottom of the wellbore after the removable shoe track has sheared from the tubular.
Claims20
A system comprising,
- a tubular deployed in a wellbore and configured to be cemented in the wellbore;
- a removable shoe track removably connected to a distal end of the tubular through a shear pin and configured to deploy cement to an annulus of the tubular;
- and
- an inflatable bag disposed on the tubular and configured to inflate to seal the annulus of the tubular when the removable shoe track is sheared, using the shear pin, from the tubular after the tubular is cemented in the wellbore but before the cement has set,
- wherein the removable shoe track is configured to drop to a bottom of the wellbore after the removable shoe track has sheared from the tubular.
A method comprising:
- deploying a tubular having a removable shoe track in a wellbore, wherein the removable shoe track is removably connected to the tubular using a shear pin;
- cementing, using cement, an annulus of the tubular through the removable shoe track;
- shearing the removable shoe track from the tubular using the shear pin;
- inflating an inflatable bag disposed on the tubular to seal the annulus after the removable shoe track is sheared from the tubular;
- and
- dropping the removable shoe track to a bottom of the wellbore after the tubular is cemented in the wellbore but before the cement has set.
Dependencies are inferred from the claim text.