Processes and systems for injecting a fluid into a wellbore

A system for injecting into an injection well, comprising:

• a fluid storage apparatus configured to store a water-rich product separated from a hydrocarbon production fluid;
• a subterranean housing comprising a pressurizing apparatus at least partially disposed therein, wherein:
• the subterranean housing is at least partially disposed under a surface of the earth,
• the pressurizing apparatus comprises an inlet located within the subterranean housing and below the surface of the earth,
• the pressurizing apparatus comprises an outlet configured to eject a pressurized water-rich product therefrom,
• the subterranean housing comprises a first container at least partially disposed within a second container,
• an annular volume is defined between an outer sidewall surface of the first container and an inner sidewall surface of the second container,
• a cylindrical volume is defined between an outer bottom wall surface of the first container and an inner bottom wall surface of the second container,
• a barrier fluid is disposed within the cylindrical volume, the annular volume, or both, and
• a sensor configured to detect a change in pressure of the barrier fluid is disposed within the cylindrical volume or the annular volume;
• and
• an injection well configured to introduce the pressurized water-rich product into a subterranean formation.

A process for injecting into an injection well, comprising:

• recovering a fluid from a fluid storage apparatus located on a surface of the earth;
• introducing the fluid into a subterranean housing comprising a pressurizing apparatus at least partially disposed therein, wherein:
• the subterranean housing is at least partially disposed under a surface of the earth,
• the pressurizing apparatus has an inlet located within the subterranean housing and below the surface of the earth,
• the subterranean housing comprises a first container at least partially disposed within a second container,
• an annular volume is defined between an outer sidewall surface of the first container and an inner sidewall surface of the second container,
• a cylindrical volume is defined between an outer bottom wall surface of the first container and an inner bottom wall surface of the second container,
• a barrier fluid is disposed within the cylindrical volume, the annular volume, or both, and
• a sensor configured to detect a change in pressure of the barrier fluid is disposed within the cylindrical volume or the annular volume;
• introducing the fluid from the subterranean housing into the inlet of the pressurizing apparatus;
• and
• introducing a pressurized fluid from an outlet of the pressurizing apparatus into an injection well.