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A curved drilling pipe with a bit digs into layered earth in an illustrative style.

A curved drilling pipe with a bit digs into layered earth in an illustrative style.

A downhole drilling tool, drilling through earth formations, similar to https://www.shutterstock.com/image-illustration/drill-string-penetrate-rock-formation-600nw-2391946493.jpg, but following a curved path similar to https://drillingfluidexplore.wordpress.com/wp-content/uploads/2020/11/drill-string-drilling-fluid-explored.jpg, with part of the drill string perfectly straight See more