Abstract: A wellbore tool assembly to release stuck pipe includes a tubular that includes an outer wall, an inner wall and an annular compartment defined between the outer wall and the inner wall. A quantity of acid is carried within the annular compartment of the tubular. Multiple ports are formed in the tubular. Each port fluidically connects an inner volume of the tubular with a volume outside the tubular through the annular compartment. The assembly includes a ball seat disposed within the tubular. The ball seat is configured to receive a ball dropped into the tubular. The multiple ports are configured to switch between an open position and a closed position. When in the open position, the multiple ports permit flow of the acid from the annular compartment to the formation. When in the closed position, the multiple ports prevent fluid flow from the annular compartment to the formation.

Abstract: A retrievable bridge plug includes a housing that includes a slickline connector; a plurality of wheels coupled to the housing, each wheel adjustable from a retracted position within the housing to an extended position from the housing; a motor assembly within the housing and driveably coupled to the plurality of wheels; a seal coupled to the housing; and a controller configured to operate the motor assembly to move the housing through a wellbore on the plurality of wheels in the extended position in response to a particular force on the housing; and activate the seal to seal the wellbore from fluid circulation there through.

Abstract: A downhole tool includes a top sub-assembly that couples to a downhole conveyance and a housing. The housing includes a bore that extends through the housing from the top sub-assembly to a downhole end of the housing opposite the uphole end, and a plurality of compartments fluidly coupled to the bore. The downhole end of the housing including a tapered portion. At least one of the plurality of compartments includes at least one piston configured to extend away from the housing to forcibly expand at least a portion of a wellbore tubular based at least in part on a fluid pressure in the at least one compartment. The tool includes at least one hydraulic swage coupled to the housing and configured to expand to forcibly expand at least the portion of the wellbore tubular based at least in part on a fluid pressure in the bore.

Abstract: A wellbore tool assembly to release stuck pipe includes a tubular that includes an outer wall, an inner wall and an annular compartment defined between the outer wall and the inner wall. A quantity of acid is carried within the annular compartment of the tubular. Multiple ports are formed in the tubular. Each port fluidically connects an inner volume of the tubular with a volume outside the tubular through the annular compartment. The assembly includes a ball seat disposed within the tubular. The ball seat is configured to receive a ball dropped into the tubular. The multiple ports are configured to switch between an open position and a closed position. When in the open position, the multiple ports permit flow of the acid from the annular compartment to the formation. When in the closed position, the multiple ports prevent fluid flow from the annular compartment to the formation.

Abstract: A retrievable bridge plug includes a housing that includes a slickline connector; a plurality of wheels coupled to the housing, each wheel adjustable from a retracted position within the housing to an extended position from the housing; a motor assembly within the housing and driveably coupled to the plurality of wheels; a seal coupled to the housing; and a controller configured to operate the motor assembly to move the housing through a wellbore on the plurality of wheels in the extended position in response to a particular force on the housing; and activate the seal to seal the wellbore from fluid circulation there through.

Abstract: A downhole tool includes a top sub-assembly that couples to a downhole conveyance and a housing. The housing includes a bore that extends through the housing from the top sub-assembly to a downhole end of the housing opposite the uphole end, and a plurality of compartments fluidly coupled to the bore. The downhole end of the housing including a tapered portion. At least one of the plurality of compartments includes at least one piston configured to extend away from the housing to forcibly expand at least a portion of a wellbore tubular based at least in part on a fluid pressure in the at least one compartment. The tool includes at least one hydraulic swage coupled to the housing and configured to expand to forcibly expand at least the portion of the wellbore tubular based at least in part on a fluid pressure in the bore.