| 摘要 |
A longitudinally slotted carrier (35) having one end adapted for mounting on a tubing string, the carrier being nonplanar, with a slotted configuration and interior dimensions to enable capsule charge orientation at selected phases between 0 and 360 degrees. The carrier has a frangible seam (57) that fractures upon detonation to form two retrievable strips (45, 47), each supported by the tubing string for retrieval. The seam (57) is a narrow bridge, formed by slotting the carrier, with a cross-sectional area that shatters upon detonation of the shaped charges (37). The remaining cross-sectional area of each strip is sufficient to assure retrieval after detonation. The strips (45, 47) are nonplanar, arcuate or a segment of a circle in cross section. When the capsule charges (37) are arrayed around many phases, by attaching both front and rear portions of the capsule charges (37) to the unslotted regions of the carrier, plural primer cords (39) are used for detonation.
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