- Patent Title: Deploying material to limit losses of drilling fluid in a wellbore
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Application No.: US16831559Application Date: 2020-03-26
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Publication No.: US11643878B2Publication Date: 2023-05-09
- Inventor: Bodong Li , Chinthaka Pasan Gooneratne , Timothy E. Moellendick , Rami F. Saleh
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Fish & Richardson P.C.
- Main IPC: E21B10/32
- IPC: E21B10/32 ; E21B17/10 ; E21B21/00 ; E21B10/34

Abstract:
Bottom hole assemblies with a combined roller-underreamer assembly can include: a body configured to be attached to a drill pipe; an uphole ring attached to the body; a downhole ring attached to the body between the uphole ring and the downhole end of the body; a sliding ring mounted around the body between the uphole ring and the downhole ring; a set tube slidably mounted around the body between the uphole ring and the sliding ring; a reamer assembly with at least one first articulated arm with extending between the uphole ring and the downhole end of the set tube; and a roller assembly with: at least one second articulated arm extending between the uphole end of the set tube and the sliding ring; and a rolling positioned at a joint of each second articulated arm.
Public/Granted literature
- US20210301597A1 Deploying Material to Limit Losses of Drilling Fluid in a Wellbore Public/Granted day:2021-09-30
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