ABSTRACT Anytime sucker rods contact the inner diameter of production tubing in corrosive wells, wear accelerated corrosion will result. The resultant damage is likely to be greater than the sum of the two factors acting individually. Experience tends to agree that minimizing the corrosion component with corrosion inhibitors minimizes the damage, and that continuous application of the inhibitor is more beneficial than batch application. This paper follows laboratory development and field testing of a batch applied corrosion inhibitor designed to have added benefit for this task. In the laboratory linear polarization resistance evaluated inhibition and standard lubricity tests evaluated wear characteristics. Corrosion coupons, manganese ion in the water from this sour field, and failure records evaluated field performance. Coupons detect the corrosion component, and manganese ions reflect total corrosion-plus-wear occurring in the well. The ratio of these to measurements before and after application evaluated success prior to any failures occurring. INTRODUCTION Exact details of the mechanism of wear accelerated corrosion are certain to be quite complex. 1 Just wear itself and lubrication are complex enough. 2, 3 Electrochemical corrosion due to dissolved gases and volatile organic acids in the oilfield has been the subject of many studies. 4 Many times an active wear area in a corrosive media becomes anodic to the film area, giving rise to galvanic corrosion acceleration. 5, 6 Mechanistic similarities probably exist for erosion accelerated corrosion. 7, 8 Rather that explain all the facets of the mechanism, this paper outlines attempts to minimize wear accelerated corrosion with corrosion inhibitors. Earlier studies have shown that this effort can provide benefits. 9, 10 The reason that sucker rod strings sometimes contact the inner diameter of production tubing can be due to crooked zones in the hole, or to intentionally deviated holes.