초록 ▼

A well perforating apparatus for generating a plurality of material perforating jets. A base has a plurality of recesses or apertures, and a liner is proximate to the base and is indented into each recess or aperture. Explosive charges contact the indented surfaces of the liner to form multiple shap

A well perforating apparatus for generating a plurality of material perforating jets. A base has a plurality of recesses or apertures, and a liner is proximate to the base and is indented into each recess or aperture. Explosive charges contact the indented surfaces of the liner to form multiple shaped charges. A detonator activates the explosive material to collapse the liner segments proximate to the explosive charges and to generate a plurality of perforating jets. In one embodiment of the invention, the base initially comprises a planar material that can be formed into a geometric shape for insertion into a cylindrical housing or wellbore. The invention substantially reduces manufacturing costs and is especially useful in permitting a high density shot pattern to be generated by the perforating jets.

대표청구항 ▼

A perforating apparatus for generating a plurality of material perforating jets, comprising: a liner having a plurality of indentations which each define a cavity open to a first surface of said liner and which each define a protruding liner surface extending from an opposing second surface of said

A perforating apparatus for generating a plurality of material perforating jets, comprising: a liner having a plurality of indentations which each define a cavity open to a first surface of said liner and which each define a protruding liner surface extending from an opposing second surface of said liner; an explosive charge proximate to each protruding liner surface on the second surface of said liner, wherein said explosive charge and each liner indentation combine to form a shaped charge oriented about the cavity within each liner indentation; and a detonator for igniting said explosive charge to collapse said liner indentations about each corresponding liner cavity to generate a plurality of material perforating jets.