WELLBORE TOOL AND METHOD OF USE

1 . A wellbore tool, comprising:

an elongated lower body having a first section and a second section, the second section having an interior channel;

an upper body having a first section and a second section, the second section configured to extend into the interior channel of the elongated lower body;

a connection configured to secure the second section of the upper body within the interior channel;

a seal extending around an interior periphery of the interior channel

wherein the lower body is configured to be attached to a liner within the wellbore; and

wherein the upper body is configured to be rotated via the connection from a closed configuration to a circulating configuration; and

wherein the upper body is configured to be rotated via the connection from the closed configuration to a released configuration.

2 . The wellbore tool of claim 1 , wherein the connection is a threaded connection with a plurality of connector threads.

3 . The wellbore tool of claim 1 , wherein a first predetermined number of left-handed rotations opens the wellbore tool to the circulating configuration.

4 . The wellbore tool of claim 1 , wherein a second number of left-handed rotation opens the wellbore tool to the released configuration.

5 . The wellbore tool of claim 1 , wherein a first predetermined number of right-handed rotations closes the wellbore tool from the circulating configuration.

6 . A method of well construction, comprising:

providing a tool having a lower body with an interior channel and an upper body configured to engage within the interior channel via a connection, the tool having a seal extending between the interior channel and the upper body;

cementing a parent casing string at a predetermined depth within a wellbore;

creating a drilled section below a lower end of the parent casing;

running a production string with the tool into the wellbore such that the tool is positioned above a shoe of the parent casing;

performing cementing operations through the production string;

applying a first number of left-hand rotations to the upper body of the tool, thereby converting the tool to a circulation configuration;

performing circulation operations to clean excess cement above the tool;

applying a predetermined number of right-hand rotations to the upper body to convert the tool to a closed configuration for pumping operations;

performing pumping operations; and

applying a second number of left-hand rotations to the upper body to convert the tool to a released configuration, such that the upper body is released from the lower body by being completely disengaged with the connection;

wherein the lower body remains attached to a liner within the wellbore.

7 . The method of claim 6 , wherein the connection is a threaded connection with a plurality of connector threads.