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Cased Hole

Tubing-Conveyed Perforating Guns
Tubing-conveyed perforating (TCP) guns allow operators to optimize well flow by detonating high-performance, deep-penetrating shaped charges thatmaximize perforation length and entry hole size. TCPs treat zones with drilling, cement or perforation damage and also initiate formation breakdown during hydraulic fracturing.

Applications
• • •Tubing-conveyed guns are adaptable to any application. Guns may be run on pipe with most completion applications. Guns may be run with wireline under permanent and/or retrievable packers.

Features,Advantages and Benefits
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Low-debris and zero-debris charges are available to fit required application. Gun lengths and assemblies can be customized for each application. Pressure ratings up to30,000 psi (207 MPa). TCPs permit operations at substantially higher underbalanced pressure differentials to ensure better perforation clean up. Large-diameter, multiphased casing guns increaseperforation depth and diameter, resulting in a perforation with minimum restriction and higher productivity. Since TCPs services perforate long intervals in a single trip, substantial rig cost savings arerealized. Also maximum perforation cleaning—when perforating underbalanced—can only be achieved by perforating the entire zone at one time. TCPs allow maximum potential to be obtained from aperforation, decreasing stimulation costs. Since pressure control equipment can be installed prior to perforating, kill fluid costs also are reduced. TCP assemblies—essentially large casing guns—safely andefficiently protect personnel and equipment. With TCPs there are no electronically detonated blasting caps in the system, which means no premature or accidental firing due to stray electrical currents.TCPs also can be run regardless of temperature, H2S or CO2 levels.

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Weatherford International Ltd. 515 Post Oak Blvd., Suite 600 Houston, Texas 77027 USA Tel: 713-693-4000 www.weatherford.com...