Patent ID: 7255165
Filing Date: 2007-08-14
Classification: E21B

Abstract:
1. A field-installable rod guide for a rod having an outer rod surface, the rod rotatable within an oilfield tubular having an interior tubular surface for driving a rotating-type downhole pump to pump liquids to the surface through the oilfield tubular, the rod guide comprising: a body including interfitting first and second body members; the first body member having a. an outer wear surface; b. at least one outer tapered surface radially inward of the outer wear surface, tapering radially along an axial direction; c. an inner rod-engagement surface radially inward of the outer tapered surface, for gripping the outer rod surface; and d. a first body load shoulder radially outward of the outer wear surface; the second body member having a. an outer wear surface; b. an inner taper-engagement surface radially inward of the outer wear surface, for axially slidably engaging the at least one outer tapered surface of the first body member, to urge at least a portion of the body radially inward toward a rod gripping position about the rod; and c. an inner rod-engagement surface radially inward of the inner taper-engagement surface for gripping the outer rod surface; and d. a second body load shoulder radially outward of the outer wear surface, the first body load shoulder axially spaced from the second body load shoulder; a sleeve for positioning about the first and second body member while in the rod gripping position and between the axially spaced load shoulders, the sleeve including an inner wear surface for slidably contacting the outer wear surfaces of the first and second body members, and an outer wear surface for contacting the interior tubular surface of the oilfield tubular.