| Patent | Date |
|---|
Displacement Measuring Device And Speed Measuring Method Of Drilling Traction Robot
App 20220307367 - ZHAO; Jianguo ; et al. | 2022-09-29 |
In situ exploitation-separation-backfilling integration apparatus used for natural gas hydrates
Grant 11,434,727 - Tang , et al. September 6, 2 | 2022-09-06 |
Cavity Creation Tool By Crushing With Multi-stage Controllable Water Jet For Natural Gas Hydrate Development
App 20220268132 - TANG; Yang ; et al. | 2022-08-25 |
In Situ Exploitation-separation-backfilling Integration Apparatus Used For Natural Gas Hydrates
App 20220243564 - TANG; Yang ; et al. | 2022-08-04 |
Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor
Grant 11,255,745 - Liu , et al. February 22, 2 | 2022-02-22 |
System And Method For Pumping Lubricant In Gas Pipeline
App 20220010925 - ZHAO; Jianguo ; et al. | 2022-01-13 |
Method for determining quality level of iron and steel product
Grant 11,209,414 - Su , et al. December 28, 2 | 2021-12-28 |
Combined crushing super-variable-diameter drill bit for natural gas hydrate exploitation
Grant 11,199,050 - Wang , et al. December 14, 2 | 2021-12-14 |
Automatic jet breaking tool for solid fluidization exploitation of natural gas hydrate
Grant 11,193,333 - Tang , et al. December 7, 2 | 2021-12-07 |
Test Device For Simulating Longitudinal-lateral-torsional Coupled Nonlinear Vibration Of Drill String Of Deepwater Riserless Drilling And Method Therefor
App 20210199535 - LIU; Jun ; et al. | 2021-07-01 |
Coiled tubing drilling robot, robot system and process parameter control method thereof
Grant 11,047,183 - Liu , et al. June 29, 2 | 2021-06-29 |
Automatic Jet Breaking Tool For Solid Fluidization Exploitation Of Natural Gas Hydrate
App 20210140243 - TANG; Yang ; et al. | 2021-05-13 |
Combined Crushing Super-variable-diameter Drill Bit For Natural Gas Hydrate Exploitation
App 20210140244 - WANG; Guorong ; et al. | 2021-05-13 |
Experimental Device And Experimental Method For Natural Gas Hydrate Solid-state Fluidized Mining And Crushing
App 20210079762 - WANG; Guorong ; et al. | 2021-03-18 |
Device and method for solid-state fluidized mining of natural gas hydrates in shallow seabed
Grant 10,822,927 - Tang , et al. November 3, 2 | 2020-11-03 |
Multi-functional multi-field coupling seepage experiment device and testing method thereof
Grant 10,801,942 - Ou , et al. October 13, 2 | 2020-10-13 |
Numerical Simulation And Parameter Optimization Method For Volumetric Fracturing Of Unconventional Dual Medium Reservoir
App 20200301043 - ZHU; Haiyan ; et al. | 2020-09-24 |
Dynamic Design Method For Personalized Drill Bit For Complex Difficult-to-drill Formation
App 20200263522 - LIU; Qingyou ; et al. | 2020-08-20 |
Pipeline robot capable of steering actively
Grant 10,690,281 - Liu , et al. | 2020-06-23 |
Coiled Tubing Drilling Robot, Robot System And Process Parameter Control Method Thereof
App 20200181994 - LIU; Qingyou ; et al. | 2020-06-11 |
Device and method for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydrates
Grant 10,655,436 - Liu , et al. | 2020-05-19 |
Intelligent switching valve for reservoir reformation and production monitoring and control and construction method therefor
Grant 10,626,704 - Liu , et al. | 2020-04-21 |
Mechanics experiment system and method for perforated string in underground perforating blasting of oil-gas well
Grant 10,590,708 - Liu , et al. | 2020-03-17 |
Device And Method For Solid-state Fluidization Mining Of Seabed Shallow Layer Non-diagenetic Natural Gas Hydrates
App 20200072028 - LIU; Qingyou ; et al. | 2020-03-05 |
Device And Method For Solid-state Fluidized Mining Of Natural Gas Hydrates In Shallow Seabed
App 20200040710 - TANG; Yang ; et al. | 2020-02-06 |
Downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water injection
Grant 10,550,647 - Tang , et al. Fe | 2020-02-04 |
A downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water i
App 20190376347 - TANG; Yang ; et al. | 2019-12-12 |
Multi-functional Multi-field Coupling Seepage Experiment Device And Testing Method Thereof
App 20190234856 - OU; Chenghua ; et al. | 2019-08-01 |
Method For Determining Quality Level Of Iron And Steel Product
App 20190137471 - SU; Hang ; et al. | 2019-05-09 |
Dynamic inwardly eccentrically-placed directional drill bit type rotation guidance apparatus
Grant 10,233,694 - Li , et al. | 2019-03-19 |
Intelligent Switching Valve For Reservoir Reformation And Production Monitoring And Control And Construction Method Therefor
App 20190017349 - LIU; Qingyou ; et al. | 2019-01-17 |
Mechanics Experiment System And Method For Perforated String In Underground Perforating Blasting Of Oil-gas Well
App 20190010760 - LIU; Jun ; et al. | 2019-01-10 |
A Fuzzy Evaluation And Prediction Method For Running Status Of Mechanical Equipment With Occurrence Probability Of Failure Modes
App 20190005400 - LIU; Qingyou ; et al. | 2019-01-03 |
Pipeline Robot Capable Of Steering Actively
App 20180363828 - LIU; Qingyou ; et al. | 2018-12-20 |
Dynamic Inwardly Eccentrically-placed Directional Drill Bit Type Rotation Guidance Apparatus
App 20180100352 - LI; Wei ; et al. | 2018-04-12 |
Deepwater drilling condition based marine riser mechanical behavior test simulation system and test method
Grant 9,476,292 - Liu , et al. October 25, 2 | 2016-10-25 |
Actively driven spiral pipeline robot
Grant 9,316,340 - Liu , et al. April 19, 2 | 2016-04-19 |
Deepwater Drilling Condition Based Marine Riser Mechanical Behavior Test Simulation System And Test Method
App 20160032704 - LIU; Qingyou ; et al. | 2016-02-04 |
Underground annular blowout preventer and assembly process thereof
Grant 9,206,662 - Liu , et al. December 8, 2 | 2015-12-08 |
Actively Driven Spiral Pipeline Robot
App 20150300554 - LIU; Qingyou ; et al. | 2015-10-22 |
Underground Annular Blowout Preventer and Assembly Process Thereof
App 20130153796 - Liu; Qingyou ; et al. | 2013-06-20 |
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