Dual concentric water injection completions

Hello my-spread community, I hope all is well with you and loved ones.

I'm just wondering if anyone has any experience with running a Dual concentric water injection completions in their career? Can you please share some of the lessons learned?


What do you guys recommend for tubing connections on a low angle, low-pressure water injection well? If at any point this well is converted to water/alternate gas injection well, do you think we should plan for premium connection?

Based on the field information and injection history for the past couple of years, there hasn't been any pipe failure due to corrosion but there's no formal corrosion study done on the injected water. Do you think we should consider internally/externally coating of the smaller inner tubing and internal coating of the outer tubing?

I do appreciate any feedback in advance.

Regards, Gaz

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