Development of a centrifugal downhold separator with in-situ recycle of produced water (initial tests with 34.1 API gravity crude)

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Oak Ridge National Laboratory (ORNL) is currently developing a Centrifugal Downhole Separator (CDHS) which will extend the application of remotely operated separations equipment developed for the nuclear industry to in-well recovery of oil with in-situ recycle of the produced water. These units have been successfully used for surface treatment of produced water and wastewater generated during environmental clean-up operations. Performance data has shown that centrifugal units are capable of separating stable emulsions into ``single-phase`` streams with generally less than 1% cross-phase contamination. Initial testing will be conducted with a bench-scale separator to determine the separation efficiency of various crude oils ... continued below

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[25] p.

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Walker, J.F.; Jubin, R.T. & Robinson, S.M. November 1, 1998.

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Oak Ridge National Laboratory (ORNL) is currently developing a Centrifugal Downhole Separator (CDHS) which will extend the application of remotely operated separations equipment developed for the nuclear industry to in-well recovery of oil with in-situ recycle of the produced water. These units have been successfully used for surface treatment of produced water and wastewater generated during environmental clean-up operations. Performance data has shown that centrifugal units are capable of separating stable emulsions into ``single-phase`` streams with generally less than 1% cross-phase contamination. Initial testing will be conducted with a bench-scale separator to determine the separation efficiency of various crude oils and to provide information necessary to scale up the separator. Information from the bench-scale unit will be used in the design of a larger prototype, which will have a much larger height/diameter ratio and will incorporate some of the components necessary for down-hole operations. The prototype separator will be operated in the lab to verify scale-up parameters and separation efficiencies, as well as to provide information necessary to design a full-scale system. The full-scale system will be fabricated, installed in the field, and operated to demonstrate the technology. This paper discusses the initial testing of the bench-scale separator with a crude oil having an API gravity of 34.06{degrees}.

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[25] p.

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OSTI as DE99000302

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  • 5. international petroleum environmental conference, Albuquerque, NM (United States), 20-23 Oct 1998

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  • Other: DE99000302
  • Report No.: ORNL/CP--99809
  • Report No.: CONF-981062--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 672207
  • Archival Resource Key: ark:/67531/metadc703280

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 19, 2016, 12:41 p.m.

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Walker, J.F.; Jubin, R.T. & Robinson, S.M. Development of a centrifugal downhold separator with in-situ recycle of produced water (initial tests with 34.1 API gravity crude), article, November 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc703280/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.