US 11,840,901 B2
Fishing welding tool
Abdulaziz D. Alqahtani, Dammam (SA); Omar M. Alhamid, Dhahran (SA); and Muaath S. Bajunaid, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Feb. 24, 2022, as Appl. No. 17/652,430.
Prior Publication US 2023/0265728 A1, Aug. 24, 2023
Int. Cl. E21B 31/00 (2006.01); E21B 47/18 (2012.01)
CPC E21B 31/007 (2013.01) [E21B 47/18 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A welding tool comprising:
a tubular body defining a longitudinal axis having a lateral end and a pin end, wherein the pin end has external threads disposed around an external circumferential surface of the pin end and the lateral end comprises an inner wall defining an orifice and a heat proof shell disposed circumferentially around the lateral end, wherein the orifice has an open side configured to encompass, at least partially, a fish;
a battery housing, wherein the battery housing encloses at least one battery that stores energy;
a welding element deposited on an inner surface of the orifice forming a welding element layer;
an electric line helically coiled about the longitudinal axis and disposed within an annulus of the tubular body, wherein the electric line physically contacts the welding element and is electrically connected to the at least one battery; and
a controller, wherein the controller is capable of receiving and parsing mud pulse signals and controlling the release of stored energy from the batteries to the electric line.