In-situ landfill gas well perforation method and apparatus
First Claim
Patent Images
1. A method for in-situ perforation of a landfill gas well, comprising the steps of:
- (a) lowering a perforating device into a gas well until the perforating device is adjacent to a portion of the gas well located at a first predetermined depth from a landfill surface;
(b) activating the perforating device at the first predetermined depth and perforating the portion of the gas well adjacent to the perforating device; and
(c) maintaining an amount of methane gas inside the gas well outside of methane gas explosivity range of 5-15%.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a method and apparatus for perforating a landfill gas well in situ. The invention allows for improved recovery of gas from a gas well without the danger of explosion.
-
Citations
17 Claims
-
1. A method for in-situ perforation of a landfill gas well, comprising the steps of:
-
(a) lowering a perforating device into a gas well until the perforating device is adjacent to a portion of the gas well located at a first predetermined depth from a landfill surface; (b) activating the perforating device at the first predetermined depth and perforating the portion of the gas well adjacent to the perforating device; and (c) maintaining an amount of methane gas inside the gas well outside of methane gas explosivity range of 5-15%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification