Patent ID: 11946373
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. A method comprising:
directing drilling fluid through a main fluid flow path defined by a first housing;
directing, toward an annulus of a wellbore, part of the drilling fluid through a bypass flow path defined by a second housing; and
restricting, by a curved interface of a stationary section with respect to a rotatable section of a flow control choke that is between the first housing and the second housing, a flow of the part of the drilling fluid through the bypass flow path, the stationary section being stationary relative to the rotatable section, wherein the curved interface of the stationary section has a direction of concavity that is substantially parallel to the main fluid flow path, wherein the rotatable section is axially movable within the bypass flow path to contact the stationary section and to restrict the flow of the drilling fluid through the bypass flow path, and wherein a biasing mechanism is positioned within the bypass flow path to bias the rotatable section into contact with the stationary section.