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US 2021/0002974 A1Published application
Curing a lost circulation zone in a wellbore
AssigneeSaudi Arabian Oil Company
InventorSaad S. al-Shammari
Life of this patent
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Abstract
An example method of forming a well includes identifying a lost circulation zone in a wellbore, where the lost circulation zone includes a fracture in a formation adjacent to the wellbore; arranging an inflatable in a vicinity of the lost circulation zone; forcing slurry into the inflatable to cause at least part of the inflatable containing the slurry to expand into the fracture; allowing the slurry to set for a period of time to produce a solid; and drilling through the solid in the inflatable in the wellbore, leaving the solid in the fracture.
Claims23
A method of forming a well, comprising:
- identifying a lost circulation zone in a wellbore, the lost circulation zone comprising a fracture in a formation adjacent to the wellbore;
- arranging an inflatable in a vicinity of the lost circulation zone;
- forcing slurry into the inflatable to cause at least part of the inflatable containing the slurry to expand into the fracture;
- allowing the slurry to set for a period of time to produce a solid;
- and
- drilling through the solid in the inflatable in the wellbore, leaving the solid in the fracture.
3 more elements
A system comprising:
- a conduit in a wellbore, the conduit comprising a joint located in a vicinity of at least part of a lost circulation zone in the wellbore, the lost circulation zone comprising a fracture in a formation adjacent to the wellbore;
- an inflatable mounted to the joint;
- and
- one or more pumps to force slurry through the conduit and into the inflatable to cause at least part of the inflatable containing the slurry to expand into the fracture, the slurry having a composition to produce, upon setting, a solid in both the wellbore and the fracture.
1 more element
Dependencies are inferred from the claim text.