| 摘要 |
A process and apparatus for completing a subterranean well bore in at least one subterranean formation. At least one perforating gun assembly is positioned on the outside of casing in a subterranean well bore. A suitable signal, such as a hydraulic, electric or wave signal, is transported to the perforating gun assembly so as to detonate one or more explosive charges in the perforating gun assembly which are aimed toward the casing. At least one wall in the casing is perforated thereby establishing fluid communication through the wall of the casing. Usually, cement surrounding the casing and a subterranean formation surrounding the casing are also perforated to establish fluid communication between the formation and the interior of the casing. A logging tool may also be positioned exterior to the casing to aid in positioning the perforating gun assembly adjacent a subterranean formation of interest and pressure and/or temperature gauges may also be provided on the exterior of casing to monitor well bore and/or formation conditions. In one embodiment, multiple perforating gun assemblies are located outside casing and juxtaposed to multiple subterranean formations of interest. Thereafter, each perforating gun assembly may be selectively fired to perforate the casing and select formation. Zone isolation devices may be provided on the outside of the casing to permit each formation to be completed and stimulated and/or treated independent of the others. In this manner, multiple subterranean formations may be completed and stimulated and/or treated more efficiently and cost effectively.
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