US 11,891,889 B2
Corrosion prediction for integrity assessment of metal tubular structures
Zhengchun Liu, Sugar Land, TX (US); Robello Samuel, Cypress, TX (US); Adolfo Gonzales, Houston, TX (US); and Yongfeng Kang, Katy, TX (US)
Assigned to Landmark Graphics Corporation, Houston, TX (US)
Appl. No. 17/606,228
Filed by Landmark Graphics Corporation, Houston, TX (US)
PCT Filed May 16, 2019, PCT No. PCT/US2019/032705
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2020/231442, PCT Pub. Date Nov. 19, 2020.
Prior Publication US 2022/0205353 A1, Jun. 30, 2022
Int. Cl. C10G 7/10 (2006.01); E21B 47/00 (2012.01)
CPC E21B 47/006 (2020.05) [E21B 2200/20 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method for assessing an integrity of metal tubular structures comprising:
Receiving one or more inputs;
Applying an algorithm to automatically select an appropriate model for a given corrosion scenario;
Applying a combined model including semi-empirical and multiphase flow corrosion characteristics to the one or more inputs based at least on an injection component;
Determining one or more corrosion parameters of either an internal pipe wall, an external pipe surface, or both;
Applying a corrosion correlation value to the one or more corrosion parameters to produce one or more correlated corrosion parameters; and storing the one or more correlated corrosion parameters on a computer readable medium.