Page 50 - Petroleum and Gas Field Processing
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Figure 20 Types of perforating gun.
Perforating guns are classified as hollow steel carrier, semi
expendable, and fully expendable guns (Fig. 20). Hollow steel carrier
guns are made of steel cylinders that carry the explosive charges and
needed accessories. They come in small diameters that can go through the
production tubing, and in large diameters that can go only through the
production casing. They are rigid, can withstand high pressure and
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