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Ball switch device and method
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Vent assembly
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Method and apparatus for completing a slanted wellbore
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Method and apparatus for isolating and treating subsurface stratas
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High temperature perforating method
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Optional fire and release tool and method
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Positive tubing release coupling
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High temperature perforating apparatus
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Packer actuated vent assembly
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Sand consolidation method
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High temperature perforating method
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Releasable coupling
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Method and apparatus for determining communication of a perforated zone with a second zone
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Dual well completion - by installing perforator at lower zone and firing after completion of upper zone
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Tubing conveyed permanent completion method and device
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