Curing casing leak tool

A method for repairing a leak in a tubular located in a well, the method comprising:

• determining a location of the leak in the well by performing one or more pressure tests within the tubular using a plug;
• making up a tool based on the location of the leak, the tool comprising:
• an upper isolation packer located uphole from the location of the leak and configured to, when subjected to a first pre-determined pressure, seal against an inner surface of the tubular;
• a lower isolation packer located downhole from the location of the leak and configured to, when subjected to the first pre-determined pressure, seal against the inner surface of the tubular;
• a lower ball valve located downhole from the lower isolation packer;
• an upper ball valve located between the upper isolation packer and the lower isolation packer, the upper ball valve comprising circulating ports, the upper ball valve configured to, when subjected to a second pre-determined pressure:
• uncover the circulating ports, and
• deploy cement into the leak through the uncovered circulating ports to repair the leak,
• wherein the second pre-determined pressure is greater than the first pre-determined pressure;
• and
• drillable tubulars connecting the upper isolation packer, the lower isolation packer, the lower ball valve, and the upper ball valve to one another, wherein the drillable tubulars, the upper isolation packer, the lower isolation packer, the lower ball valve, and the upper ball valve are made of drillable material,
• dropping a lower ball into the lower ball valve;
• increasing a pressure uphole from the lower ball to reach the first predetermined pressure, causing the upper isolation packer and the lower isolation packer to seal, without uncovering the circulating ports;
• dropping an upper ball into the upper ball valve below the circulating ports when the upper isolation packer and the lower isolation packer are sealed;
• increasing the pressure uphole from the upper ball to reach the second predetermined pressure, causing the circulation ports to be uncovered and the cement to be deployed;
• and
• drilling out the tool.