High-strength Portland cement slurry for ultra-high temperature cementing, preparation method therefor and application thereof
US-12497331-B2 · Dec 16, 2025 · US
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Qu Congfeng patents
Qu Congfeng is listed as an inventor on 9 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Qu Congfeng |
| Total patents | 9 |
| First publication | Dec 24, 2020 |
| Latest publication | Dec 16, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Cement slurry system, preparation method therefor and use thereof
US-12391861-B2 · Aug 19, 2025 · US
Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof
US-12305116-B2 · May 20, 2025 · US
Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof
US-2024336828-A1 · Oct 10, 2024 · US
Set cement mechanical properties parameter measurement method and apparatus based on image recognition technology
US-2024288348-A1 · Aug 29, 2024 · US
Cement slurry system, preparation method therefor and use thereof
US-2024228858-A1 · Jul 11, 2024 · US
Well cementing method for improving well cementing quality by controlling hydration heat of cement slurry
US-11926787-B2 · Mar 12, 2024 · US
High-strength portland cement slurry for ultra-high temperature cementing, preparation method therefor and application thereof
US-2023278927-A1 · Sep 7, 2023 · US
Well Cementing Method for Improving Well Cementing Quality by Controlling Hydration Heat of Cement Slurry
US-2020399525-A1 · Dec 24, 2020 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cnpc Eng Tech Res & Dev Co Ltd | 9 |
| China Nat Petroleum Corp | 7 |
| Beijing Huamei Inc Cnpc | 2 |
| Petrochina Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/487 | 8 |
| C09K8/467 | 8 |
| C04B28/04 | 6 |
| C04B40/0039 | 6 |
| Y02W30/91 | 6 |