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Poly solid-free drilling fluid
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Slurry used for easily collapsed layer drilling
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Leakproof slurry used for gypsum-salt layers
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Slurry for protecting oil and gas reservoir
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Slurry for salt bed drilling
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Fire-resistant and waterproof layer of oil platform cable
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Rubber product used for packer
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Cable shielding layer for petroleum platform
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Preparation method of modified mica powder for rubber packing
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Polymer drilling fluid
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Well cementing rubber stopper preparation method
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