In 1999, it was the first in the world to propose the concept of "water column" and "sampling bottles collecting water vertically from top to bottom."

In 1999, it was the first in the world to propose the concept of "water column" and "sampling bottles collecting water vertically from top to bottom."

Based on the concept of "ideal (or hypothetical) water column," a petroleum sample collection tool in water is designed, which is characterized by a circular sampling bottle that can be opened and closed at the bottom. The sampling bottle takes water vertically from top to bottom. The comparison with the retrieved literature shows that the features of the water column and the bottom full-open sampling are reported in literature 1 and literature 2, but the structure design of the whole sampling device is different. “The concept of ideal (or hypothetical) water column has not been reported in the literature at home and abroad.

Queried by: Liu Jianhui    Auditor: Tang Baolian

Back then (in 1999), a global novelty search was commissioned to the Jiangsu Science and Technology Novelty Search Consulting Center (national top-tier).

Date of entrustment: November 30, 1999

Completion date: December 7, 1999

Completed by: Jiangsu Provincial Institute of Science and Technology Information

Inquiry Center of Jiangsu Institute of Science and Technology Information