Post-Perforations

H/ET holds proprietary, patented technology for post-perforating methane extraction wells in Municipal Solid Waste (MSW) landfills. This innovative method was specifically developed to rehabilitate wells that are flooded above the screened interval or have become clogged over time.

Our tool and methodology also allow for precise perforation of well extensions added as landfill elevation increases—eliminating the need for costly well replacement. This technology improves gas recovery efficiency and extends the functional life of critical infrastructure in dynamic landfill environments.