ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,308, issued on Jan. 20, was assigned to China University of Mining and Technology (Xuzhou, China).

"Rock porosity prediction method based on small-sample inversion of while-drilling data" was invented by Gangwei Fan (Xuzhou, China), Tao Luo (Xuzhou, China), Dongsheng Zhang (Xuzhou, China), Shizhong Zhang (Xuzhou, China), Zhanglei Fan (Xuzhou, China), Huining Ni (Xuzhou, China) and Zihan Kong (Xuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rock porosity prediction method based on small-sample while-drilling data inversion is provided, including: collecting while-drilling parameters during laboratory or field drilling processes, includ...