Abstract: An oil well tool for installation in a production tubing string to provide valved gas communication between the interior of the tubing string and the annulus between the tubing string and casing for improving production from the well. The tool includes a thick walled tubular body for in-line threaded connection in a tubing string and includes valved passageways for the automatic transfer of gas from the annulus into the interior of the tubing string when the pressure in the annulus exceeds the pressure in the tubing string by a designed differential. The tool can be installed in the well in various arrangements for improving production of the well.

Abstract: A gas diverter tool is disclosed for use in improving the operation of an oil and gas well that has cracks, holes or leaks in the casing. The tool includes a thick walled tubular body for in-line threaded connection within a tubing string below a packer carried by the tubing string. The thick wall of the tubular body includes four circumferentially spaced passageways extending longitudinally therethrough to provide gas inlet openings. The upper ends of the passageways are removably closed, and the lower ends are diametrically reduced to provide valve seats. Spherical check valves are loosely received within the passageways above to seat downwardly against the valve seats. Elongated wiper rods are loosely slidable in the passageways and downwardly abut against the ball valves to hold the check valves closes.