Abstract: An acidizing plug assembly comprises a mandrel, sealing element, upper and lower backup rings, upper and lower cones, upper and lower slips each having teeth configured to engage a well casing, and a shoe. An external surface of the acidizing plug is configured to be acid-resistant, and one or more breakable plugs prevents acid from reaching an acid-vulnerable portion of the acidizing plug. The breakable plugs are broken when the acidizing plug is no longer needed to permit acid such as hydrochloric acid to dissolve at least a substantial portion of the acidizing plug.

Abstract: A hydraulic fracking plug assembly comprises a mandrel, sealing element, upper and lower backup rings, upper and lower cones, upper and lower slips each having teeth configured to engage a well casing, and a shoe. At least one of these parts, and in a further example most or all of these parts, are soluble in a solvent such as a potassium chloride solution, an acid, or a base. In some such examples, the soluble parts comprise magnesium, a magnesium alloy, or a soluble polymer.

Abstract: A hydraulic fracking plug assembly comprises a mandrel, sealing element, upper and lower backup rings, upper and lower cones, upper and lower slips each having teeth configured to engage a well casing, and a shoe. At least one of these parts, and in a further example most or all of these parts, are soluble in a solvent such as a potassium chloride solution, an acid, or a base. In some such examples, the soluble parts comprise magnesium, a magnesium alloy, or a soluble polymer.