METHOD FOR DRILLING WELLBORE Russian patent published in 2022 - IPC E21B49/08 E21B43/10 

FIELD: drilling.

SUBSTANCE: invention relates to a method for drilling a wellbore. A method for drilling a wellbore is proposed, including the placement of a drilling device with a shank in the wellbore. The drilling device with a shank contains a drill pipe, a suspension device for the shank located lower down the wellbore from the drill pipe, as well as a downhole tool attached lower down the wellbore from the suspension device for the shank. The downhole tool contains: a casing string containing three or more support pads located on its outer diameter, wherein at least one of support pads contains a cavity; one or more batteries and one or more sensors located inside the specified cavity; and one or more additional components connected to one or more sensors located inside the inner diameter of the casing string. The method also includes drilling one or more additional components of the casing string, while one or more batteries and one or more sensors are still located in the cavity after the end of use of the drilling device.

EFFECT: increase in the efficiency of a wellbore drilling method, providing full access to the wellbore without limiting the inner diameter for future operations below a casing string shoe.

11 cl, 8 dwg