Flow Back Recovery System
A system and method for processing flow back from an oil or gas well after a fracturing or other well treatment process includes a first trailer having a high pressure filter, a sand separator, and a choke manifold and a second trailer including a gas separator and holding tanks for water and oil. Each trailer may be equipped with a drip or catch pan to confine any leakage of liquid that may occur.
1 . A flow back processing system comprising:
a first trailer having a liquid tight containment compartment;
a high pressure filter having an inlet mounted on the first trailer;
a sand separator connected to the high pressure filter via a conduit and also mounted on the first trailer;
a choke manifold connected to the sand separator via a second conduit and having an outlet, the choke manifold mounted on the first trailer;
a second trailer having a liquid tight containment compartment;
a gas separator having an inlet for a gas and liquid mixture mounted on the second trailer;
a dump valve within the gas separator for maintaining a constant level of liquid within the gas separator;
a first storage tank mounted on the second trailer connected to the gas separator via the dump valve for storing separated liquid; and
a gas outlet in the gas separator for discharging gas from the gas separator.
2 . The system according to claim 1 further including a gas conduit extending from the gas outlet to a gas sales line and a second gas conduit extending to a gas flare.
3 . A method of processing flow back from an oil or gas well comprising:
providing the apparatus of claim 1 , connecting the inlet of the high pressure filter to a well head after fracturing or completing another well completion process;
connecting the output of the choke manifold to the input of the gas separator; and
allowing the flow back material to flow from the well head to the high pressure filter.
4 . The system of claim 2 further including a weir or baffle within the gas separator, a container for collecting oil as it flows over the weir or baffle and an oil storage tank located within the containment compartment for storing the separated oil.
5 . The method of claim 3 further including directing the gas from the gas separator to a gas sales line.
6 . The method of claim 3 further including directing the gas from the gas separator to a flare.
7 . A flow back processing system comprising:
a trailer having a liquid tight containment compartment;
a gas separator having an inlet for a gas and liquid mixture mounted on the trailer;
a dump valve within the gas separator for maintaining a constant level of liquid within the gas separator; and
a gas outlet in the gas separator for removing gas from the gas separator.
8 . A flow back processing system as claimed in claim 7 wherein the gas separator includes an internal baffle forming two liquid compartments, and first and second dump valves, one for each compartment.
9 . A flow back processing system as claimed in claim 7 further including a gas conduit extending from the gas outlet for connection to a gas sales lines or a gas flare or both.
10 . A flow back processing system as claimed in claim 7 including a first storage tank mounted on the trailer and connected to the gas separator via the dump valve for storing separated liquid.
11 . A flow back processing system as claimed in claim 8 further including a first storage tank connected to the first dump valve.
12 . A flow back processing system as claimed in claim 11 further including a second storage tank connected to the second dump valve.
13 . A flow back processing system comprising:
a trailer having a liquid tight containment compartment;
a high pressure filter having an inlet mounted on the trailer;
a sand separator connected to the high pressure filter via a conduit and also mounted on the trailer; and
a choke manifold connected to the sand separator via a second conduit and having an outlet, the choke manifold mounted on the trailer.