There are some very specific problems that need to be overcome when dealing with produced waters from offshore oil and gas production. The first of a series of three articles involves the developments in technologies for the treatment of produced waters prior to discharge to the offshore environment. Ssubsequent articles will deal with treating produced waters for discharge to land, discharge to near shore areas, and injection, or re-injection, into sub-surface rock formations. New developments discussed include inline liquid/liquid hydrocyclones and optimizing gas bubble size in flotation units. All of these technologies benefit from using the optimum regime of water treatment chemicals. The new technologies discussed could find application in the North Sea area by using the in-line cyclones especially where the production fluids are at low pressures or using either the dissolved gas/microbubble technology in a dedicated flotation unit in place of the conventional degasser. If an additional treatment stage is required then recent data provided could be applied to the system design. Hydrocyclones in deepwater Gulf of Mexico operating at low pressure would appear to be ideal candidates for the in-line units and the design of the flotation units could follow the conclusions from this study.


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    Title :

    Oil and gas: Treatment and discharge of produced waters offshore


    Contributors:

    Published in:

    Publication date :

    2013


    Size :

    4 Seiten, 6 Bilder, 1 Tabelle, 6 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English