Inventor
LI XIANWEN
CN7 patents
⚠️ This page may combine multiple inventors who share the name “LI XIANWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PETROCHINA CO LTD
5 patentsUS11313192B2Apr 26, 2022
Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof
PETROCHINA CO LTD2 citations63
US10975294B2Apr 13, 2021
Injection stimulation agent for water injection well and the preparation method and application thereof
PETROCHINA CO LTD0 citations57
US10961442B2Mar 30, 2021
On-line diverting acid for continuous injection into water injection wells and a preparation method thereof
PETROCHINA CO LTD0 citations46
US10876043B2Dec 29, 2020
Chelating agent for reservoir acidification and stimulating injection and its preparation method and application
PETROCHINA CO LTD0 citations46
US10920127B2Feb 16, 2021
Method for in-depth profile control and displacement of low-permeability oil reservoirs
PETROCHINA CO LTD0 citations40