Patent ID: 11920420
Assignee: ROBERT DWAYNE WANKAN
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 17:
18. A method of using a washover tool to remove a pipe at least partially buried in the ground, comprising:
placing the washover tool around the pipe, wherein the washover tool comprises:
an outer housing;
an inner housing disposed within the outer housing and forming an annulus between the inner and outer housings, wherein at least a portion of the pipe extends through the inner housing when the washover tool is placed around the pipe;
a front face plate coupled to the inner and outer housings; and
a rod member coupled to the outer housing and configured to supply a pressurized fluid to the annulus;

injecting the pressurized fluid into the washover tool by supplying the pressurized fluid from a control system to the annulus of the washover tool through the rod member;
ejecting the pressurized fluid from a plurality of openings formed in the front face plate of the washover tool to washover the pipe;
moving the washover tool along the length of the pipe to washover the pipe by pushing the rod member with the control system; and
removing the pipe from the ground, wherein the removing comprises:
disconnecting the control system from the washover tool;
connecting the control system to the pipe; and
pulling the pipe from the ground with the control system.