Chang LU

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Qingdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Oil well cement composite permeation enhancement agent suitable for...
- Patent number 11,866,367
- Issue date Jan 9, 2024
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Chang Lu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Scour-resistant interface enhancer used for well cementing of coalb...
- Patent number 11,820,936
- Issue date Nov 21, 2023
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Shenglai Guo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of cement for well cementing in penetrated hydrate layer
- Patent number 11,719,658
- Issue date Aug 8, 2023
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Yuhuan Bu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cement performance evaluation device and cement design method for c...
- Patent number 11,567,018
- Issue date Jan 31, 2023
- CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
- Huajie Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
OIL WELL CEMENT COMPOSITE PERMEATION ENHANCEMENT AGENT SUITABLE FOR...
- Publication number 20230357080
- Publication date Nov 9, 2023
- China University of Petroleum (East China)
- Chang LU
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
SCOUR-RESISTANT INTERFACE ENHANCER USED FOR WELL CEMENTING OF COALB...
- Publication number 20230227710
- Publication date Jul 20, 2023
- China University of Petroleum (East China)
- Shenglai GUO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
DESIGN METHOD OF CEMENT FOR WELL CEMENTING IN PENETRATED HYDRATE LAYER
- Publication number 20230091934
- Publication date Mar 23, 2023
- China University of Petroleum (East China)
- Yuhuan BU
- G01 - MEASURING TESTING
Information Patent Application
INTRA-LAYER REINFORCEMENT METHOD, AND CONSOLIDATION AND RECONSTRUCT...
- Publication number 20230063437
- Publication date Mar 2, 2023
- China University of Petroleum (East China)
- Yuhuan BU
- E21 - EARTH DRILLING MINING
Information Patent Application
CEMENT PERFORMANCE EVALUATION DEVICE AND CEMENT DESIGN METHOD FOR C...
- Publication number 20220236203
- Publication date Jul 28, 2022
- China University of Petroleum (East China)
- Huajie LIU
- E21 - EARTH DRILLING MINING