CPC E21B 41/0042 (2013.01) [E21B 17/18 (2013.01); E21B 33/1212 (2013.01); E21B 41/0035 (2013.01)] | 19 Claims |
10. A method for deploying a multilateral junction, comprising:
providing a y-block, the y-block including;
a housing having a first end and a second opposing end;
a single first bore extending into the housing from the first end, the single first bore defining a first centerline; and
second and third separate bores extending into the housing and branching off from the single first bore, the second bore defining a second centerline and the third bore defining a third centerline;
attaching a mainbore leg to the second bore for extending into the main wellbore, the mainbore leg and the second bore defining a second overlapping space;
attaching a lateral bore leg to the third bore for extending into the lateral wellbore, the lateral bore leg and the third bore defining a third overlapping space, and further wherein the third overlapping space has a lateral wellbore leg pre-expansion joint located at least partially therein, the lateral wellbore leg pre-expansion joint comprising a metal configured to expand in response to hydrolysis, and further wherein an overlap distance (Do) between the third bore and the lateral wellbore leg is less than 120 cm; and
subjecting the lateral wellbore leg pre-expansion joint to an activation fluid to expand the metal in the third overlapping space and thereby form a lateral wellbore leg expanded metal joint in the third overlapping space.
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