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US 11,454,071 B2Granted
Deploying material to limit losses of drilling fluid in a wellbore
AssigneeSaudi Arabian Oil Company
InventorsBodong Li, Chinthaka Pasan Gooneratne, Timothy E. Moellendick, Rami F. Saleh
Life of this patent
Estimating the term…
Abstract
Bottom hole assemblies for deploying sheets of material in a wellbore include: a body configured for attachment to a drill pipe; a spool ring attached to the body; a spring ring; and rolls of fabric.
Claims16
A bottom hole assembly for deploying sheets of material in a wellbore, the bottom hole assembly comprising:
- a body configured for attachment to a drill pipe, the body having an outer surface;
- a spool ring attached to the body, the spool ring comprising a plurality of spools;
- a spring ring comprising a spring disposed around the body, the spring having an inner surface, the spring having a compressed position in which the inner surface of the spring abuts the outer surface of the body and a relaxed position in which the inner surface of the spring is spaced from the outer surface of the body;
- and
- rolls of fabric, each roll mounted on one of the plurality of spools and each roll has a first end attached to the spring ring and a second end releasably connected to the one of the plurality of spools.
2 more elements
A bottom hole assembly for deploying sheets of material in a wellbore, the bottom hole assembly comprising:
- a body configured for attachment to a drill pipe, the body having an outer surface with a first diameter;
- a spool ring attached to the body, the spool ring having a plurality of spools;
- a spring ring disposed around the body, the spring ring having a compressed position with a second diameter that is greater than and a relaxed position with a second diameter that is greater than the first diameter, wherein in the compressed position the spring ring abuts the body, wherein in the relaxed position the spring ring is spaced from the body;
- and
- rolls of fabric, each roll mounted on one of the plurality of spools and each roll has a first end attached to the spring ring and a second end releasably connected to the one of the plurality of spools.
2 more elements
Dependencies are inferred from the claim text.