Patent ID: 8789591

Claim:
A method of constructing a well apparatus for recovery of hydrocarbons from a subterranean reservoir fluidly coupled to a wellbore of said apparatus, said method comprising: providing a reservoir for a composition comprising a monopropellant, said composition substantially free of hydrogen peroxide, hydrazine, or Otto Fuel; inserting from surface, with a coiled tubing injector head, a first conduit into said wellbore, said first conduit having a proximal end at surface and a distal end below said surface, said first conduit fluidly coupled to said monopropellant composition reservoir; engaging, at surface, said first conduit with said coiled tubing injector head; connecting a catalytic reaction chamber at a point along the length of said first conduit, said reaction chamber having intake and exhaust fluid ports fluidly coupled to said first conduit, said catalytic reaction chamber having a catalyst composition disposed in it; and, attaching a check valve on said first conduit or on said catalytic reaction chamber, wherein said check valve is: disposed on said catalytic reaction chamber at a position downstream from said catalyst composition in said reaction chamber, or, disposed on said first conduit at a location closer to said distal end of said first conduit than the location of said reaction chamber.