Reverse cementing valve system and method employing a double flapper valve with sliding sleeve and drillable nose

A method comprising:

• deploying into a wellbore a reverse cementing body coupled with a casing, the reverse cementing body having
• an internal bore,
• a valve actuable from a closed to an open configuration, the closed configuration obstructing flow of fluid through the internal bore of the reverse cementing body, the valve configured to obstruct flow in an uphole direction during deployment;
• a port provided extending through a wall of the reverse cementing valve body from the internal bore to external the reverse cementing body, a fluid communication channel extending from the port to the internal bore,
• a barrier member actuatable to a closed position obstructing flow of fluid through the port upon actuation;
• pumping a fluid down inside the casing from the Earth's surface;
• actuating the valve to be maintained in the open configuration;
• passing a reverse cementing slurry from a casing annulus through one or more ports below a sliding sleeve and then through the internal bore to the casing;
• actuating the barrier member to the closed position to obstruct flow of fluid through the port of the reverse cementing body.

A system comprising,

• a casing deployed in the wellbore, a reverse cementing body coupled with an end of the casing in the wellbore, the the reverse cementing body having
• an internal bore,
• a valve actuable from a closed to an open configuration, the closed configuration obstructing flow of fluid through the internal bore of the reverse cementing body, the valve configured to obstruct flow in an uphole direction during deployment;
• a port provided extending through a wall of the reverse cementing valve body from the internal bore to external the reverse cementing body, a fluid communication channel extending from the port to the internal bore,
• a barrier member actuatable to a closed position obstructing flow of fluid through the port upon actuation.