Retrievable subsurface well casing slip and packer apparatus and method

摘要

A retrievable subsurface well casing slip and packer apparatus and method having upper and lower interconnected and expandable slips which have a combined circumferential engagement of a well conduit greater than or equal to 360° and a control means for releasing engaging means for engagement with a well bore and permitting rotation of a running string in clockwise and counterclockwise directions without releasing the engagement means for setting the apparatus in a well bore.