CNOOC Ltd - Company Profile
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View up-to-date information on CNOOC Ltd patents, including inventor and filing insights.
Patent Trends
| Publication Identifier | Document Type | Title | Classification-CPC | Publication Date |
|---|---|---|---|---|
| CN108561101A | Application | Remote closed-loop pilot-controlled intelligent well completion device | E21B34/14; E21B47/00; E21B47/06 | September 21, 2018 |
| CN108561121A | Application | Method and system of monitoring production of production layers in real-time manner and remote-controlling output of all oil layers used for well completion | E21B34/16; E21B47/00; E21B47/12 | September 21, 2018 |
| CN108165299A | Application | Inline compact electrostatic coalescer used for electric field demulsification of W/O type emulsification liquid | C10G33/02 | June 15, 2018 |
| CN107987820A | Application | Temperature-resistant anti-salt oil-displacing polymer as well as preparation method and application | C08B15/02; C08F220/585; C08F289/00; C08G81/02; C09K2208/10; C09K8/588; C09K8/90 | May 04, 2018 |
| CN206845157U | Grant | Impact load's that perforated string receives simulation experiment device | January 05, 2018 |
Top Inventors by Filings (Count by publication)
| Name | Count |
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