| CPC E21B 41/0042 (2013.01) [E21B 7/06 (2013.01); E21B 17/18 (2013.01); E21B 43/26 (2013.01)] | 28 Claims |

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1. A multilateral junction, comprising:
a housing comprising a y-block, the housing including:
a first housing end and a second housing end;
a single first bore extending into the y-block from the first housing end;
second and third bores branching off from the single first bore and exiting the y-block at the second housing end; and
a bore coupling profile located along an inside surface of the third bore proximate the second housing end;
a multilateral bore leg extending into the third bore, the multilateral bore leg including:
a tubular having a first tubular end and a second tubular end; and
a tubular coupling profile located along an outside surface of the tubular proximate the first tubular end; and
an arced coupling located between the third bore and the tubular and engaged with the bore coupling profile and the tubular coupling profile to axially fix the housing and the multilateral bore leg relative to one another.
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