Abstract: Provided is a multilateral lateral bore completion, a well system, and a method. The multilateral lateral bore completion, in one embodiment, includes a tubular having a first end and a second end, and first and second packers located on a radial exterior surface of the tubular, the first and second packers configured to move from a radially retracted state to a radially extended state to engage with a wellbore tubular. The multilateral lateral bore completion, in accordance with this embodiment, further includes a transition joint coupled to the first end of the tubular, the transition joint configured to extend out into a main wellbore, and an expandable metal anchor positioned on the radial exterior surface of the transition joint, the expandable metal anchor including a metal configured to expand in response to hydrolysis to axially and rotationally fix the transition joint with respect to the wellbore tubular.

Abstract: Provided is multilateral junction sleeve assembly, a well system, and a method. The multilateral junction sleeve assembly, in one aspect, includes a multilateral deflector assembly, the multilateral deflector assembly including a deflector body having a deflector face and an opening extending therethrough, as well as a deflector assembly sleeve coupled to an uphole end of the deflector body, the deflector assembly sleeve having a sidewall opening in a sidewall thereof aligned with the deflector face. The multilateral junction sleeve assembly in accordance with this aspect, further includes an expandable metal anchor positioned on a radial exterior surface of the deflector assembly sleeve, the expandable metal anchor including a metal configured to expand in response to hydrolysis to axially and rotationally fix the multilateral deflector assembly within a wellbore tubular.

Abstract: Provided is a multilateral lateral bore completion, a well system, and a method. The multilateral lateral bore completion, in one aspect, includes a tubular having a first end and a second end, and first and second packers located on a radial exterior surface of the tubular, the first and second packers configured to move from a radially retracted state to a radially extended state to engage with a wellbore tubular and separate the tubular into first and second production zones. The multilateral lateral bore completion, according to this aspect, further includes an expandable metal anchor positioned on the radial exterior surface of the tubular, the expandable metal anchor including a metal configured to expand in response to hydrolysis to axially and rotationally fix the tubular with respect to the wellbore tubular.

Abstract: Provided is a multilateral junction sleeve assembly, a well system, and a method. The multilateral junction sleeve assembly, in one aspect, includes a multilateral deflector assembly, the multilateral deflector assembly including a deflector body having a deflector face and an opening extending therethrough, as well as a deflector assembly sleeve coupled to an uphole end of the deflector body, the deflector assembly sleeve having a sidewall opening in a sidewall thereof aligned with the deflector face. The multilateral junction sleeve assembly, in accordance with this aspect, further includes degradable material positioned on a radial exterior surface of the deflector assembly sleeve covering the sidewall opening, the degradable material configured to degrade over time and uncover the sidewall opening.