DYNAMIC PRODUCED WATER TREATMENT APPARATUS AND SYSTEM
An automated produced water treatment system that injects ozone or an ozone-oxygen mixture upstream of produced water separators, with the dose rate changing dynamically as the produced water quality changes, as determined by continuous monitoring of the produced water quality by a plurality of sensors that detect water quality parameters in real time. The system may operate as a “slipstream” injection system, that draws a portion of produced water from the produced water pipeline and injects ozone or an ozone-oxygen mixture back into the pipeline with disrupting or slowing normal operations. Disinfectants or other additives may also be injected.
1 . A fluid treatment system configured to treat a fluid stream, comprising:
a fluid injection or disposal well;
one or more fluid treatment tanks, wherein the one or more fluid treatment tanks comprise at least one separator;
one or more downstream pipes connecting the one or more water treatment tanks with the fluid injection or disposal well;
upstream pipes in fluid connection with the one or more water treatment tanks;
an ozone injection system configured to inject ozone gas or an ozone-oxygen mixture gas into the fluid stream prior to the fluid reaching the fluid injection or disposal well; and
a nitrogen nano-bubble delivery system, configured to inject nitrogen or nitrogen-rich gas into the fluid stream.
2 . The system of claim 1 , wherein the ozone injection system injects the ozone gas or ozone-oxygen mixture gas upstream of the one or more fluid treatment tanks.
3 . The system of claim 1 , wherein the ozone injection system is a slipstream injection system configured to draw off a portion of the fluid stream for ozone gas or ozone-oxygen mixture gas injection.
4 . The system of claim 1 , wherein the ozone injection system injects a dose rate of ozone gas or ozone-oxygen mixture gas that varies over time.
5 . The system of claim 1 , wherein the nitrogen or nitrogen-rich gas is injected as nano-bubbles or micro-bubbles.
6 . The system of claim 1 , wherein the ozone injection system produces oxygen-depleted reject gas in the process of producing oxygen and/or ozone, and said reject gas is directed to the at least one separator as blanket gas.
7 . The system of claim 1 , wherein the ozone injection system is contained in whole or in part in one or more moveable containers or trailers.
8 . The system of claim 1 , wherein the fluid stream is produced water from oil or gas wells, and/or fracturing fluid for a hydrocarbon fracturing operation.
9 . A fluid treatment system configured to treat a fluid stream, comprising:
a fluid injection or disposal well;
one or more fluid treatment tanks, wherein the one or more fluid treatment tanks comprise at least one separator;
one or more downstream pipes connecting the one or more water treatment tanks with the fluid injection or disposal well;
upstream pipes in fluid connection with the one or more water treatment tanks;
an ozone injection system configured to inject ozone gas or an ozone-oxygen mixture gas into the fluid stream prior to the fluid reaching the fluid injection or disposal well; and
a nitrogen nano-bubble delivery system comprising a manifold with one or more strainers and a mixer, configured to inject nitrogen or nitrogen-rich gas into the fluid stream.