Back to results
US 12,203,369 B2Granted
Modified whipstock design integrating smart cleanout mechanisms
AssigneeSaudi Arabian Oil Company
InventorsAhmed A. Al-Mousa, Linlin Wang
Life of this patent
Estimating the term…
Abstract
A system includes a milling assembly with a mill bit and a drill string that mills a new wellbore section. The system further includes a whipstock assembly that is formed by a smart reamer that reams an obstruction in a wellbore, a whipstock that deflects the milling assembly away from the wellbore, and a bypass valve mechanism that controls a fluid flowing through the system. Within the system, the milling assembly is fluidly connected to the whipstock assembly.
Claims18
A system comprising:
- a milling assembly comprising a mill bit and a drill string configured to mill a new wellbore section;
- and
- a whipstock assembly comprising:
- a reamer configured to ream an obstruction in a wellbore, wherein the reamer comprises a mandrel connected to a reamer shoe, the mandrel being configured to rotate the reamer shoe;
- a whipstock configured to deflect the milling assembly away from the wellbore;
- and
- a bypass valve mechanism configured to control a fluid flowing through the system;
- wherein the milling assembly is fluidly connected to the whipstock assembly.
5 more elements
A method comprising:
- running a whipstock assembly fluidly connected to a milling assembly into a wellbore to a desired depth;
- reaming, by a reamer of the whipstock assembly, an obstruction in the wellbore;
- compressing a spring of the reamer by a mandrel of the reamer upon a reamer shoe of the reamer encountering the obstruction in the wellbore, thereby rotating the mandrel and the reamer shoe to ream through the obstruction in the wellbore;
- controlling, by a bypass valve mechanism of the whipstock assembly, a fluid traveling through the whipstock assembly;
- deflecting, by a whipstock of the whipstock assembly, the milling assembly away from the wellbore;
- and
- milling, by a mill bit of the milling assembly, a new wellbore section away from the wellbore.
4 more elements
Dependencies are inferred from the claim text.