Tubing anchor including slips actuated by segmented cone sections

A tubing anchor apparatus for anchoring a tubing string relative to a surrounding casing in a wellbore, the apparatus comprising:

• an inner housing having a through passage extending longitudinally between opposing ends of the inner housing, the opposing ends being configured for connecting the inner housing inline with the tubing string such that the through passage communicates with an inner passage of the tubing string;
• a plurality of slips supported on the inner housing so as to be radially movable relative to the inner housing;
• a first cone arrangement comprising a plurality first cone sections supported at circumferentially spaced positions about the inner housing in alignment with the plurality of slips respectively, each first cone section being fixed relative to the inner housing, and each first cone section having a working face which is sloped radially inwardly while extending in a first longitudinal direction towards the slips;
• a second cone arrangement comprising a plurality of second cone sections supported at circumferentially spaced positions about the inner housing in alignment with the plurality of slips respectively, each second cone section having a working face which is sloped radially inwardly while extending in a second longitudinal direction towards the slips such that each slip is received longitudinally between a respective one of the first cone sections and a respective one of the second cone sections;
• wherein the second cone sections of the second cone arrangement are actuatable for displacement along the inner housing from a stored position at a first distance from the first cone sections of the first cone arrangement to a working position at a second distance from the first cone sections in which the second distance is less than the first distance;
• and
• wherein the working faces of the first and second cone sections engage respective first and second ends of the respective slips to displace the slips radially outward from the stored position defining a first overall diameter of the apparatus to the working position defining a second overall diameter of the apparatus, said second overall diameter being greater than said first overall diameter for gripping the casing in the working position.