Inventor · disambiguated record
Zhengchun Liu
Also filed as: LIU ZHENGCHUN · LIU ZHENGCHUN M · LIU ZHENGCHUN MICHAEL
20 granted patents·10 pending applications·24 citations·filing 2013–2024
90Inventor score
Files withLANDMARK GRAPHICS CORP25HALLIBURTON ENERGY SERVICES INC3AMAZON TECH INC1UNIV CHANGSHA SCI & TECH1
Top patents by PatentIndex Score
30 records- 0194US11466555B2Method and criteria for trajectory controlHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Oct 11, 2022·4 cites·20 claims
- 0290US11920455B1Friction for cutting plugLANDMARK GRAPHICS CORP·Filed 2022·Granted Mar 5, 2024·2 cites·20 claims
- 0388US12248473B1Query performance prediction using multiple expertsAMAZON TECH INC·Filed 2023·Granted Mar 11, 2025·2 cites·20 claims
- 0477US11891889B2Corrosion prediction for integrity assessment of metal tubular structuresLANDMARK GRAPHICS CORP·Filed 2019·Granted Feb 6, 2024·2 cites·20 claims
- 0576US11416650B2Optimized visualization of loads and resistances for wellbore tubular designLANDMARK GRAPHICS CORP·Filed 2017·Granted Aug 16, 2022·3 cites·18 claims
- 0675US10664633B2Wellbore thermal, pressure, and stress analysis above end of operating stringLANDMARK GRAPHICS CORP·Filed 2016·Granted May 26, 2020·2 cites·11 claims
- 0773US12378871B2Pack off indicator for a wellbore operationLANDMARK GRAPHICS CORP·Filed 2022·Granted Aug 5, 2025·0 cites·17 claims
- 0872US10801314B2Real-time trajectory control during drilling operationsLANDMARK GRAPHICS CORP·Filed 2016·Granted Oct 13, 2020·2 cites·20 claims
- 0972US10380281B2Vector-ratio safety factors for wellbore tubular designLANDMARK GRAPHICS CORP·Filed 2016·Granted Aug 13, 2019·2 cites·17 claims
- 1071US9850737B2Simulating the effects of syntactic foam on annular pressure buildup during annular fluid expansion in a wellboreLANDMARK GRAPHICS CORP·Filed 2015·Granted Dec 26, 2017·2 cites·20 claims
- 1168US12060787B2Systems and methods for integrated and comprehensive hydraulic, thermal and mechanical tubular design analysis for complex well trajectoriesLANDMARK GRAPHICS CORP·Filed 2019·Granted Aug 13, 2024·1 cites·18 claims
- 1260US10664632B2Wellbore thermal flow, stress and well loading analysis with jet pumpLANDMARK GRAPHICS CORP·Filed 2013·Granted May 26, 2020·1 cites·17 claims
- 1359US10282497B2Model for estimating drilling tool wearHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 7, 2019·1 cites·20 claims
- 1456US11714210B2Determining gas-oil and oil-water shut-in interfaces for an undulating wellLANDMARK GRAPHICS CORP·Filed 2021·Granted Aug 1, 2023·0 cites·20 claims
- 1553US2025258981A1Wellbore dynamic kill simulationLANDMARK GRAPHICS CORP·Filed 2024·Application pending·0 cites
- 1652US11755792B2Stress analysis for plastic material lined tubular structures for boreholesLANDMARK GRAPHICS CORP·Filed 2021·Granted Sep 12, 2023·0 cites·21 claims
- 1750US2016312598A1Method and Criteria for Trajectory ControlHALLIBURTON ENERGY SERVICES INC·Filed 2014·Application pending·0 cites
- 1848US11933135B2Method for predicting annular fluid expansion in a boreholeLANDMARK GRAPHICS CORP·Filed 2020·Granted Mar 19, 2024·0 cites·12 claims
- 1948US2017145823A1Robust viscosity estimation methods and systemsLANDMARK GRAPHICS CORP·Filed 2014·Application pending·0 cites
- 2046US2024229636A9Brittle-burst strength for well system tubular integrityLANDMARK GRAPHICS CORP·Filed 2022·Application pending·0 cites
- 2144US12135310B2Reference value quantification method for modifier dosage of modified asphaltUNIV CHANGSHA SCI & TECH·Filed 2019·Granted Nov 5, 2024·0 cites·6 claims
- 2244US11982158B2Systems and methods for borehole tubular designLANDMARK GRAPHICS CORP·Filed 2020·Granted May 14, 2024·0 cites·17 claims
- 2340US10423731B2Simulating the effects of rupture disk failure on annular fluid expansion in sealed and open annuliLANDMARK GRAPHICS CORP·Filed 2015·Granted Sep 24, 2019·0 cites·20 claims
- 2439US2022259948A1System and method for dual tubing well design and analysis cross-reference to related applicationsLANDMARK GRAPHICS CORP·Filed 2020·Application pending·0 cites
- 2538US12448869B2CO2 operation temperature and pressure analysis and well design with CO2 modeling with equation of state methodLANDMARK GRAPHICS CORP·Filed 2020·Granted Oct 21, 2025·0 cites·20 claims
- 2637US2018334897A1Drilling control based on brittleness index correlationLANDMARK GRAPHICS CORP·Filed 2015·Application pending·0 cites
- 2737US2022178243A1Integrated thermal and stress analysis for a multiple tubing completion wellLANDMARK GRAPHICS CORP·Filed 2020·Application pending·0 cites
- 2837US2022229942A1Hybrid collapase strength for borehole tubular designLANDMARK GRAPHICS CORP·Filed 2021·Application pending·0 cites
- 2934US2019048703A1Real-time optimization and visualization of parameters for drilling operationsLANDMARK GRAPHICS CORP·Filed 2016·Application pending·0 cites
- 3033US2022205340A1UOE Pipe Casing Design ToolLANDMARK GRAPHICS CORP·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →