| 摘要 |
A powder charging structure of a composite fracturing perforation device comprises one or two box body units (2, 4), wherein a box cover (3, 42) is mounted at an opening end of the box body unit (2, 4), powder is charged into an inner cavity of the box body unit (2, 4), a claw (21, 22, 41) is disposed at an inner side of the box body unit (2, 4), and the claw (21, 22, 41) is locked in a locking groove (1) or a locking hole of a cartridge (1). The structure is used for charging of second stage powder of a composite fracturing perforation device. Since a single powder box (2, 4) is adopted, or two single powder boxes (2, 4) are connected through a flexible connecting belt (5), during packing, the two connected powder boxes (2, 4) may be unfolded, thereby improving the packing density of the powder boxes (2, 4), and saving expenses on packing, storage and transportation. |
