Patent attributes
Apparatus and associated methods relate to pre-completion skin repair of releasably isolated wellbore perforation clusters. In an illustrative example, a completion method includes dividing a target portion of a wellbore casing into N distinct portions. For each distinct portion, a wireline bottom hole assembly (BHA) may be positioned, for example, in a most downstream unperforated portion. The selected portion may, for example, be releasably fluidly isolated from downstream perforation clusters, and a new perforation cluster may be generated. A non-particulate skin-repairing fluid may, for example, be pumped from uphole until a breakdown pressure of a geological formation surrounding the wellbore is exceeded. The BHA may, for example, be operated to reestablish fluid communication before moving to a next portion. After repeating the process in the N distinct portions, for example, the BHA may be removed prior to final wellbore completion. Various embodiments may advantageously improve wellbore completion efficiency.
