Inventor
ZHANG ZHIJUAN
US7 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG ZHIJUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERVICES INC
6 patentsUS10884159B2Jan 5, 2021
Logging with joint ultrasound and X-ray technologies
HALLIBURTON ENERGY SERVICES INC2 citations72
US10301932B2May 28, 2019
Ultrasonic casing and cement evaluation method using a ray tracing model
HALLIBURTON ENERGY SERVICES INC2 citations69
US9322807B2Apr 26, 2016
Ultrasonic signal time-frequency decomposition for borehole evaluation or pipeline inspection
HALLIBURTON ENERGY SERVICES INC3 citations67
US10209398B2Feb 19, 2019
Drilling fluid property determination
HALLIBURTON ENERGY SERVICES INC0 citations51
US10012762B2Jul 3, 2018
Standoff determination
HALLIBURTON ENERGY SERVICES INC0 citations51
US11905816B2Feb 20, 2024
Casing thickness estimation by frequency correlation
HALLIBURTON ENERGY SERVICES INC0 citations41