Patents by Inventor Wang Chunyan

Wang Chunyan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Underground temperature and pressure measuring system for hot-exploiting oil well
    Patent number: 5002124
    Abstract: A kind of underground temperature and pressure measuring system for hot-exploiting oil well mainly comprises a casing, a high-temperature sealing element, a high-temperature time-controlling unit, a pressure sensing unit and its recording system and a temperature sensing unit and its recording system, wherein, the high-temperature sealing element is made of flexible graphite, and the pressure sensing element is made of particular material; the temperature sensing unit is connected with the pressure sensing unit by bellows, so that the temperature sensing unit and its recording system can be put around the pressure sensing unit and its recording system, and therefore the present device is not long, but it can be used to measure temperature and pressure of underground steam at different depth simultaneously, which make the calculation of underground thermal conditions possible and reliable.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: March 26, 1991
    Assignee: Research Institute of Drilling & Production Tech.
    Inventors: Ma Ming, Sun Zhenfang, Liu Li, Li Min, Wang Chunyan