Abstract

Based on the corrosion characteristics of the water injection system in Changqing Oilfield, an experimental study was conducted on the corrosion of the water injection system caused by carbon dioxide, hydrogen sulfide, bacteria, and water treatment agents in the produced liquid. The main influencing factors of corrosion in the water injection system were analyzed, and it was clarified that the corrosion of the water injection system in Changqing Oilfield was mainly caused by oxygen corrosion, which also had an impact on the water quality of the injection. Combining static corrosion analysis with the introduction of pitting and dynamic corrosion rate testing methods, the average corrosion rate of JY oilfield water injection system has a positive correlation with pitting corrosion, while the average corrosion rate of clean water has a stronger correlation with pitting corrosion. The corrosion evaluation method has been optimized, providing technical basis for formulating effective anti-corrosion measures for the oilfield.

Details

Title
Analysis of Corrosion Causes and Optimization of Corrosion Evaluation Methods for Water Injection System in Changqing JY Oilfield
Author
Hu, Zhijie 1 ; Du Jinliang 1 ; Si Yang ying 1 ; Wang, Xiaoling 2 ; Li, Huan 1 

 Exploration and Development Research Institute of PetroChina Changqing oil field Company , Shaanxi; National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields 
 Exploration and Development Research Institute of PetroChina Changqing oil field Company , Shaanxi; Xi’an Changqing Chemical Group Co., Ltd. , Xi’an, Shaanxi 
First page
012026
Publication year
2024
Publication date
Oct 2024
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3127649533
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.