en invention patents arising from research on risk assessment, control, and environmental protection technologies for drilling in cold seas of polar regions, specifically including authorized and pending patents, are as follows:
(1) Method for Selecting Drilling Fluid for Subsea Drilling and Its Use in Calculating Drilling Depth;
(2) A Monitoring System and Method for Wellhead Attitude Throughout the Process of Deepwater Jetting and Lowering of Conductors;
(3) Downhole Flow Channel Pressure Control Device, Downhole Pressure Control Drilling System, and Drilling Method;
(4) A Portable Simulation Device for Subsea Shallow Geological Hazards;
(5) A Simulation Experimental Device for Deepwater High-Pressure Conditions;
(6) A Device and Method for Enhanced Production of Stable Separate Production of Natural Gas Hydrates;
(7) A Monitoring Device and Method for Temperature Changes During Drilling in Permafrost;
(8) A Simulation Device and Method for Wellhead Subsidence During Drilling in Permafrost;
(9) A Simulation Device and Method for Thawing and Settlement Testing of Frozen Soil Strata;
(10) A Simulation Experimental Device and Method for Heat-Induced Settlement of Hydrate-Bearing Strata.
Independent research and development.
Independently Developed, conducting research and development on model devices and simulations.
The patents were written by the project personnel based on their innovative research findings, and some of them have already been authorized.
| # | number | name | type |
| 1 | 2016YFC0303300 | National key R & D plan |
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CSTR:11738.11.ncdc.SRIPE.db1701.2022
10.12072/ncdc.SRIPE.db1701.2022