Water cut in produced fluids decreases over time during production.

This is because as a reservoir is produced, the water cut typically increases as the oil and gas reserves are depleted. This is due to the fact that water is typically produced from lower parts of the reservoir and as the reservoir pressure decreases, more water is produced along with the oil and gas. Additionally, water can also be injected into the reservoir to maintain pressure and enhance oil recovery, which can also increase the water cut in produced fluids over time.

True