The Rebco Dump Bailer is a pressure-activated fluid delivery tool designed to deposit precisely controlled volumes of treatment fluid, chemical solvents, acid, or other wellbore treatment agents at a specific depth within the tubing or casing string. The tool consists of a top sub with a fishing neck, a sealed barrel charged with treatment fluid at the surface, and a shear-disc piston mechanism at the barrel's lower end. The barrel is sealed at atmospheric pressure at the surface, isolating the treatment fluid from wellbore contact during the run-in phase.

When the desired depth is reached, a pre-determined number of downward jar blows are applied at the surface to shear the internal release disc. Once the disc shears, a plunger is driven through it, opening a flow path from the barrel to the wellbore. The stored treatment fluid exits the barrel downward into the wellbore directly onto the target zone, subsurface device, or debris accumulation. The shear disc thickness is selected at the surface based on the wellbore pressure range encountered: thinner brass discs for lower-pressure wells and thicker discs for higher-pressure wells. Barrel sizes of 5 ft standard length are available across all OD sizes, and extension barrels can be stacked to increase delivery volume for large-scale treatment operations. The OD of the lower foot assembly should be matched to the device or zone upon which the fluid is to be deposited.

Available in standard threaded connections, 1½"–4" OD. Extension barrels available.