Author(s)

Yun Ma, Ruize Niu, Wei Tian, Yacong Yang, Li Li

Corresponding Author

Yun Ma

Abstract

The objective is to identify and address the corrosion and perforation of reinjection wells, which frequently necessitate maintenance shutdowns and can even result in pollution of the surrounding environment. To deal with the common challenge in various oilfields, it is essential to understand the corrosive influence of each component of the injected water on the reinjection wells tubing. The three versions of the "Water Quality Indicators for Water Injection in Clastic Reservoirs and Methods of Analysis" had been comparatively analyzed, and targeted anticorrosive methods and strategies for tubing in reinjection wells had been put forward. The objective is to establish a theoretical foundation for ensuring the integrity of reinjection wellbores, prolonging the lifespan of reinjection wells, and reducing the impact on the surrounding environment. The results indicate that the acidic composition of injection water, dissolved oxygen, ions, and bacteria such as the sulfate reducting bacteria exert varying degrees of influence on the corrosion of reinjection well tubing and also result in damage to the integrity of reinjection wells. Additionally, a significant number of scholars have investigated a multitude of programs and measures to enhance the corrosion resistance of reinjection well tubing and address the issue of wellbore integrity.

Keywords

Corrosion; Integrity; Corrosion resistance; Oilfield; Reinjection wells