Patent ID: 11927068
Assignee: CAMERON INTERNATIONAL CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A system comprising:
a frac tree, comprising:
a first valve;
a frac head having a top side configured to face the first valve and a bottom side configured to face a wellbore, wherein the frac head comprises a first port through the top side, a second port through the bottom side, a third port through a lateral side, and a cavity between the first, second, and third ports, wherein a first fluid flow path extends through the cavity between the first and second ports along a wellbore axis of the wellbore, a second fluid flow path extends between the cavity and the third port in a lateral direction crosswise to the first fluid flow path and the wellbore axis, and the cavity is enlarged at least relative to the first and second ports;
a flapper valve within the cavity adjacent the first port, wherein the flapper valve is configured to rotate about a rotational axis between an open position and a closed position relative to the first port to open and close the first fluid flow path, and the closed position of the flapper valve is configured to block fluid flow between the cavity and the first valve while allowing fluid flow through the cavity between the first and third ports; and
an axial member configured to move along an axial path of travel parallel to a central axis of the first port, wherein the axial member is configured to extend into the cavity and engage the flapper valve at an offset distance relative to the rotational axis to cause rotation of the flapper valve between the open position and the closed position.