Baojiang Sun
24Patents
3h-index
87Co-inventors
58Inventor score
Filing activity: Sep 7, 2016 → Dec 15, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9612187B1 | Experimental apparatus for studying gas invasion and migration mechanism in oil and gas wellbores | Physics | 4 | Active |
| US10267129B1 | Homocentric squares-shaped well structure for marine hydrate reserve recovery utilizing geothermal heat and method thereof | Fixed Constructions | 3 | Active |
| US9631444B1 | Kick information identification apparatus and method assisted for wellbore pressure control during horizontal drilling | Physics | 3 | Active |
| US10337267B1 | Control method and control device for drilling operations | Fixed Constructions | 2 | Active |
| US9631454B1 | Wellbore pressure control system and method for offshore well cementation stages | Fixed Constructions | 2 | Active |
| US9605499B1 | Subsea wellhead pressure indicating and automatic adjusting device for deep-water dual-gradient drilling | Fixed Constructions | 1 | Active |
| US10408014B1 | Well killing method and device for a fractured formation without safety pressure window by five-step bullheading | Fixed Constructions | 1 | Active |
| US9631450B2 | Surface layer conductor running tool for deep-water well drilling | Fixed Constructions | 1 | Active |
| US11203922B1 | Method and equipment for optimizing hydraulic parameters of deepwater managed pressure drilling in real time | Fixed Constructions | 1 | Active |
| US11002126B2 | Active control method and control device for wellbore pressure in the open-cycle drilling of marine natural gas hydrates | Fixed Constructions | 1 | Active |
| US9624420B1 | Foam stabilizer composition, foamed cement slurry and additive composition thereof | Chemistry; Metallurgy | 1 | Active |
| US9598936B1 | Apparatus and method for monitoring hydrate decomposition area under different drilling and production processes | Physics | 1 | Active |
| US11401785B2 | Well structure for natural gas hydrate production | Fixed Constructions | 0 | Active |
| US11952869B1 | High-efficiency yield-increasing exploitation method for natural gas hydrates | Fixed Constructions | 0 | Active |
| US12030994B2 | Preparation method for and application of modified siloxane-based supercritical carbon dioxide thickener | Emerging Cross-Sectional Technologies | 0 | Active |
| US12071849B2 | Device and method for simulating gas intrusion and bullheading in wellbore under different inclinations | Physics | 0 | Active |
| US12131107B2 | Device and method for early monitoring of gas intrusion based on pressure wave propagation | Physics | 0 | Active |
| US12429415B2 | Microscopic and macroscopic evaluation method for dual-effect hydrate inhibitor | Fixed Constructions | 0 | Active |
| US12331602B2 | Well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation and operation method thereof | Fixed Constructions | 0 | Active |
| US12078054B2 | Experimental device and method for co-existence of overflow and lost circulation in fractured formation during drilling of deviated well | Fixed Constructions | 0 | Active |
| US12000245B2 | Apparatus for preventing and controlling secondary generation of hydrates in wellbore during depressurization exploitation of offshore natural gas hydrates and prevention and control method | Fixed Constructions | 0 | Active |
| US12000222B2 | Pressure compensation device with accumulator group for controlled pressure drilling | Physics | 0 | Active |
| US9594038B1 | Device and method for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities | Fixed Constructions | 0 | Active |
| US11773709B1 | Drilling well underground kick processing method and device with self-feedback adjustment | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.