Patent ID: 8550176

Claim:
A wellbore bypass tool adapted to be lowered into a wellbore on a tubing string and which is changeable between a circulation position which allows well fluids to flow through the tubing string and a bypass position wherein well fluids are injected into the annulus surrounding the bypass tool, the tool comprising: an elongated tubular body open at both ends with the ends adapted for connection to the tubing string, an interior fluid passage extending from the upstream end of the tubular member to the open lower end of the tubular member, bypass discharge ports in the wall of the tubular member extending between the interior fluid passage and the exterior of the tubular member; a sleeve having an interior fluid passage extending longitudinally therethrough and being mounted in the tubular member to move in the tubular member into and out of the bypass position permitting flow through the bypass discharge ports; and a pin mounted in the tubular body movable radially between a position engaging the sleeve to hold the sleeve in position against axial movement and a retracted position, permitting movement of the sleeve into and out of the bypass position.