Inventor
DING ZHIWEI
CN5 patents
⚠️ This page may combine multiple inventors who share the name “DING ZHIWEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA NAT PETROLEUM CORP
3 patentsUS12497331B2Dec 16, 2025
High-strength Portland cement slurry for ultra-high temperature cementing, preparation method therefor and application thereof
CHINA NAT PETROLEUM CORP0 citations56
US12305116B2May 20, 2025
Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof
CHINA NAT PETROLEUM CORP0 citations55
US11618844B2Apr 4, 2023
High temperature resistant Portland cement slurry and production method thereof
CHINA NAT PETROLEUM CORP0 citations44