Patent ID: 8590608

Claim:
A multilateral access system for a multilateral well including a main well bore and at least one lateral well bate, comprising: a tubular workstring including an inner string and an outer string; the outer string includes a diverter body having a cylindrical housing with a lateral window, the diverter body being shaped and dimensioned to direct the inner string through the lateral window and into the at least one lateral well bore wherein the outer string includes, in order from a top of outer string to a bottom of the outer string, a support collar, a running collet, a releasing shear screw, a snap latch sub, an extension housing and the diverter body, a floater polished bore receptacle, an indexing alignment assembly with a locating key, a spacer pipe, a stop collar, a lower exstension mandrel, a lower seal assembly with a sealing stack, and a rotating mule shoe assembly and wherein the indexing alignment assembly ensures the window of the diverter body faces the same direction relative to the indexing alignment assembly as a whipstock used to create an original lateral well bore and wherein the indexing alignment assembly includes an alignment mandrel, a lock ring threadingly engaged to the alignment mandrel.