Job planning considerations, including coiled tubing forces, can be critical factors for the type of equipment and the associated risk of a wellbore entry. This paper presents estimated and actual values and explains the useful range of friction factors associated with the wellbore geometry. Emphasis is placed on the situation where equipment and tubular capabilities are close to safe operating limits. Operational alternatives are discussed which can help manage the risk and aid contingency planning.Outline Operations plan to perform acid stimulation using 1.75