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US5828003A
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Composite coiled tubing apparatus and methods
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US5730222A
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Downhole activated circulating sub
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US5660241A
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Pressure compensated weight on bit shock sub for a wellbore drilling tool
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US5582250A
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Overbalanced perforating and fracturing process using low-density, neutrally buoyant proppant
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US5720598A
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Method and a system for early detection of defects in multiplex positive displacement pumps
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US5518996A
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Fluids for oilfield use having high-solids content
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US5547027A
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Low temperature, low rheology synthetic cement
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US5503671A
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High temperature retarders for oil field cements, cement slurries and corresponding cementing processes
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US5929002A
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Fluid loss control
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US5685574A
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Snap latch seal locator for sealingly latching tubing to a packer in a wellbore
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US5551516A
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Hydraulic fracturing process and compositions
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US5551514A
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Sand control without requiring a gravel pack screen
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US5613555A
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Inflatable packer with wide slat reinforcement
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US5507341A
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Inflatable packer with bladder shape control
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US5431219A
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Forming casing window off whipstock set in cement plug
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US5488989A
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Whipstock orientation method and system
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US5573225A
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Means for placing cable within coiled tubing
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US5417291A
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Drilling connector
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