Apparatus system and method to separate brine from water

A method to purify produced water from a wellhead comprising;

• a. connecting an energy recapture device to the wellhead of a wellbore;
• b. capturing at least a portion of the pressure energy from the produced fluid exiting the wellbore using the energy recapture device;
• c. transferring a component of the at least a portion of the pressure energy to a reverse osmosis membrane device connected to the energy recapture device;
• d. filtering the produced water to remove solid particulate matter;
• e. using the component of the at least a portion of the pressure energy to flow produced water through the reverse osmosis membrane device;
• and
• f. purifying the produced water as the water flows through the reverse osmosis membrane device.

A system comprising:

• a. a wellbore with a wellhead attached to the wellbore;
• b. at least one energy recapture device connected to the wellhead of the wellbore with produced water, wherein the at least one energy recapture device captures fluid pressure of the produced water;
• and
• c. at least one reverse osmosis membrane connected to the pressure recapture device wherein the at least one reverse osmosis membrane uses at least a portion of the fluid pressure from the energy recapture device to move a volume of the produced water through the reverse osmosis membrane to remove contaminates from the produced water to create purified water;
• d. at least one filter between the wellbore and the reverse osmosis unit to remove solid particulate matter;
• and
• e. at least one control panel that operates the at least one energy recapture device and the at least one reverse osmosis membrane in a coordinated manner.