초록 ▼

A perforating apparatus (170) used to perforate a subterranean well. The perforating apparatus (170) includes a generally tubular gun carrier (106) and a charge holder (172) rotatably mounted within the gun carrier (106). At least one shaped charge (102) is mounted in the charge holder (172) and is

A perforating apparatus (170) used to perforate a subterranean well. The perforating apparatus (170) includes a generally tubular gun carrier (106) and a charge holder (172) rotatably mounted within the gun carrier (106). At least one shaped charge (102) is mounted in the charge holder (172) and is operable to perforate the well upon detonation. A dynamically adjustable weight system (174) is operably associated to the charge holder (172). The dynamically adjustable weight system (174) includes a plurality of longitudinally extending tubes (176) that are operable to contain a weighted material therein and are operable to adjust the center of gravity (120) of the charge holder (172) such that gravity will cause the charge holder (172) to rotate within the gun carrier (106) to position the at least one shaped charge (102) in a desired circumferential direction relative to the well prior to perforating.

대표청구항 ▼

What is claimed is: 1. A perforating apparatus used to perforate a subterranean well, the perforating apparatus comprising:a generally tubular gun carrier;a charge holder rotatably mounted within the gun carrier;at least one shaped charge mounted in the charge holder and operable to perforate the we

What is claimed is: 1. A perforating apparatus used to perforate a subterranean well, the perforating apparatus comprising:a generally tubular gun carrier;a charge holder rotatably mounted within the gun carrier;at least one shaped charge mounted in the charge holder and operable to perforate the well upon detonation; anda dynamically adjustable weight system operably associated with the charge holder, the dynamically adjustable weight system including a plurality of circumferentially distributed longitudinally extending tubes operable to contain a weighted material therein to adjust the center of gravity of the charge holder such that gravity will cause the charge holder to rotate within the gun carrier to position the at least one shaped charge in a desired circumferential direction relative to the well prior to perforating.