Application

19601016 · HIGH-TEMPERATURE-RESISTANT FILTRATE REDUCER, WATER-BASED DRILLING FLUID AND USE OF THE HIGH-TEMPERATURE-RESISTANT FILTRATE REDUCER IN DRILLING ENGINEERING IN HIGH-TEMPERATURE SUBSURFACE ENVIRONMENTS

Filed 2026-06-24 · Pending The official file ↗ · Art unit · CNPC Bohai Drilling Engineering Company Limited · RENNER, OTTO, BOISSELLE & SKLAR, LLP

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RCEs

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