Deploying Can Installed Pumping System in an Existing Well Slot for Multiple Reservoir Support

Surface water injection method remains the most widely method used method to provide pressure support in the Petroleum Industry, either through treated seawater injection (SWI), produced water re-injection (PWRI) or an existing Aquifer Water Re-Injection (AWRI). Either method or system will need sufficient footprint on the producing platform with maintenance intensive procedures due to pipework integrity monitoring, chemical injection and rotating equipment checking or preventive maintenance. SWI is a complex method as compared to PWRI as the asset will need to lift water from the sea through high volume pumps passing a series of course and fine filters to remove marine debris. Given the live nature of seawater, bacterial growth tendency is higher thus biocide treatment is often considered to prevent reservoir souring over time. Seawater contains organic material which often reacts with formation water that may increase the scaling tendency therefore requires scale inhibitor treatment. This reaction and exposure may introduce oxygen within the water which requires de-oxygenation using a vacuum tower preventing corrosion downhole especially for the carbon steel tubulars range. These comprehensive treatment facilities will require suitable monitoring systems to ensure the water specification introduced into the reservoir is being in specification, avoiding formation damage and reservoir souring and potential reduction in reservoir permeability affecting production.