Patent ID: 7353866
Filing Date: 2008-04-08
Classification: E21B

Abstract:
1. An apparatus for stimulating a subterranean formation comprising: a first tube having a first tube interior, an open first end and a first tube wall with a length, wherein said first tube wall has at least one aperture along said length of said first tube wall; a first connector member connected to said first end of said first tube and having a first connector interior; a second tube positioned within said first tube interior, said second tube having a second tube interior, a second tube wall with a length, a first open end, and a second open end, wherein said second tube interior is sealed from said first tube interior to substantially prevent fluid communication between said first tube interior and said second tube interior; a combustion body positioned within said first tube interior external to said second tube interior; an ignition propagator positioned within said second tube interior, extending from said second tube interior through said first open end of said second tube substantially into said first connector interior, and substantially free from fluid contact with fluid residing in a surrounding environment external to said first tube wall; and a first sealing assembly engaging said second tube to substantially prevent fluid communication between said first tube interior and said first connector interior.