Wireline delivery tool
OwnerWilliam Sneedinventor
Life of this patent
Estimating the term…
Abstract
A wireline delivery tool for an underground well having a pipe, a surface seal for the pipe, and a wireline extending from the surface into the pipe. The wireline delivery tool includes a body having a diameter less than the interior diameter of the pipe and a cup extending from the body to create a seal with the interior of the pipe. A longitudinal bore within at least a portion of the body has a port through the body on each side of the cup, so that the ports are in communication with the interior of the pipe. A pressure valve within the bore is normally in the closed position. Pressure supplied into the pipe between the surface seal and the cup will move the delivery tool within the pipe.
Claims4
A wireline delivery tool for an underground well having a pipe, surface seal means to create a seal in said pipe, and a wireline extending from the surface into the pipe, said wireline delivery tool comprising:
- a body having a diameter less than the interior diameter of said pipe;
- cup means extending from said body to create a seal with said interior of said pipe said cup means including a pair of spaced apart cups;
- a longitudinal bore within said body having a port through said body on each side of said cup means;
- and
- pressure valve means within said longitudinal bore to close said bore in the normal operating position, said pressure valve means including a spring forcing a ball against a seat within said bore;
- and
- means connected to said body to adjust the pressure required to move said ball away from said seat wherein gas pressure supplied within said pipe between said surface seal means and said cup means will move said delivery tool within said pipe.
A wireline delivery tool for an underground well having a pipe, surface seal means to create a seal in said pipe, and a wireline extending from the surface into the pipe, said wireline delivery tool comprising:
- a body having a diameter less than the interior diameter of said pipe;
- cup means extending from said body to create a seal with said interior of said pipe said cup means including a pair of spaced apart cups;
- a longitudinal bore within said body having a port through said body on each side of said cup means;
- and
- pressure valve means within said longitudinal bore to close said bore in the normal operating position, and open said bore above a preset pressure, said pressure valve means including a spring forcing a ball against a seat within said bore;
- and
- means connected to said body to adjust said preset pressure;
- and
- means to increase gas pressure within said pipe between said surface seal means and said cup means above said preset pressure to allow gas to circulate through said bore.
Dependencies are inferred from the claim text.