ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,735, issued on June 24, was assigned to ConocoPhillips Co. (Houston).
"Method and apparatus for creation of an open hole sidetrack" was invented by Lars Hovda (Tananger, Norway) and Ole Jensen (Tananger, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "Drilling a sidetrack in an open hole bore in a hydrocarbon reservoir of acid-soluble formation, e.g. carbonate formation, the creation of a sidetrack (11) in an open hole bore (10 for production of hydrocarbons from a carbonate rock formation (2). Acid is delivered to the location (6) where a sidetrack is to be created; the acid dissolves away the formation and creates a trench (7) from which the...