Skid mounted wellhead desanders and flowback systems

A portable hydrocarbon desanding system for multiple wellhead use, said system comprising:

• a) a movable skid base on which is affixed:
• i) a first desander system being a test desander system for desanding a flow from a single well;
• and
• ii) a second desander system for desanding a comingled flow from more than one well;
• b) wherein a plurality of wells at a well-pad are fluidly connected to both said first desander system and to said second desander system;
• c) wherein each desander system comprises the following elements:
• i) inlet piping for receiving a slurry comprising oil, water, gas and solids from a well;
• ii) said inlet piping fluidly connected to an optional plug catcher for trapping large debris from said slurry and then to an inlet of a desander;
• iii) said desander being fluidly coupled to an integral solids accumulator;
• iv) said solids accumulator having a solid discharge outlet;
• v) said desander having a cleaned fluid discharge outlet;
• vi) said cleaned fluid discharge outlet being fluidly connected to a choke manifold;
• and
• vii) said system further comprising one or more emergency shut off valve(s);
• d) wherein said cleaned fluid discharge outlet from said first desander system is fluidly connected to a testing system for testing one or more properties of said cleaned fluid, and thereafter is fluidly connected to a separate CPF;
• and
• e) wherein said cleaned fluid discharge outlet from said second desander system is fluidly connected to said separate CPF.