Method and Apparatus for Casing Entry

摘要

According to one aspect of the disclosure, an intercept well for penetrating an existing tubular is drilled. A casing entry tool is provided in the intercept well and operated to form at least one aperture in the wall of the existing casing. The casing entry tool may be oriented toward the target tubular. In some embodiments, a generally concave notch may be positioned on the casing entry tool and adapted to engage with the convex outer surface of the target tubular. In some embodiments, a locking mechanism may retain the orientation of the casing entry tool within the intercept well.

主权项

1. A downhole tool for penetrating an existing tubular such as casing, tubing, or drillpipe positioned within an earthen formation from the surface, the downhole tool comprising:
a casing entry tool adapted to form at least one aperture in the existing tubular, the casing entry tool including a face, the casing entry tool including a generally concave notch adapted to engage with the convex outer surface of the existing tubular, the notch oriented in the same radial direction as the face of the casing entry tool.