초록 ▼

An improved downhole explosive charge carrier is disclosed. The invention uses a unique staggered charge pattern and a mounting configuration which allows the use of a straight, axially-located detonator in order to achieve a greater number of shots per unit length over conventional carriers. The in

An improved downhole explosive charge carrier is disclosed. The invention uses a unique staggered charge pattern and a mounting configuration which allows the use of a straight, axially-located detonator in order to achieve a greater number of shots per unit length over conventional carriers. The invention also reduces the interference caused by the detonator and the closeness of the shots and thereby increases the performance of the individual charges, allowing smaller charges to be used to achieve the same perforation size.

대표청구항 ▼

[ What is claimed is:] [1.] A perforating apparatus comprising:a substantially cylindrical carrier having a longitudinal axis;a plurality of explosive charges which are connected successively to said carrier and which face outwardly from said longitudinal axis, where the axial distance between axial

[ What is claimed is:] [1.] A perforating apparatus comprising:a substantially cylindrical carrier having a longitudinal axis;a plurality of explosive charges which are connected successively to said carrier and which face outwardly from said longitudinal axis, where the axial distance between axially sequential charges is not greater than 3/4 inch and where no two of said charges are mounted within a given plane perpendicular to said longitudinal axis; anda detonator operationally connected to said explosive charges.