Abstract
Abstract A compact multiphase Inline Water Separation (IWS) field prototype system has been developed and trial tested. The system consists of a Gas-Liquid Cylindrical Cyclone (GLCC), a Liquid-Liquid Pipe Separator (LLPS), a Liquid-Liquid Cylindrical Cyclone (LLCC) and a two-stage Liquid-Liquid Hydrocyclones (LLHC). The function of the system is to separate a significant portion of the produced water from a production stream while the remaining production fluids of gas, oil and reduced water are still sent to existing processing facilities. The quality of the separated water meets the requirement for water injection or direct disposal. The compact IWS can be installed either at the wellhead or downstream of a production manifold to handle multiple wells on land, offshore platform. The benefit of such a system includes increasing field water handling capacity, reducing the size and cost of the downstream separation facility, and reviving dead low-pressure wells. The field prototype has been susccefully tested in the field. The overall water separation efficiency, defined as the percentage of water removed from the total water production, averages at 70%. The outlet water quality is less than 35 ppm oil concentration. The results of the tests show that it is feasible to integrate GLCC, LLCC, LLPS and LLHC into a compact multiphase separation system for bulk produced water removal from a production stream.
Published Version
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