| http://www.w3.org/ns/prov#value | - A bottom hole burner for initiating combustion in subterranean formations which comprises a gas intake chamber closed at the upper end, the upper end of said chamber including means for raising and lowering said chamber in well tubing, said lower end of the chamber being shaped to fit a seat shaped in the lower end of the well tubing, said shaped chamber end including seal means to prevent combust
|
