METHOD AND SYSTEM FOR CO2 REJECTION WITH A TWO STAGE MEMBRANE PROCESS

摘要

The invention relates to a system and method of treating a flow back fluid exiting a well site following stimulation of a subterranean formation. The invention utilizes a two-stage membrane process during the period that the gas contains high concentrations of C02 by volume, and allows for separation of C02 from the natural gas components, providing pipeline-quality natural gas (approximately 5% C02 by volume) to the gas collection system