DEVELOPMENT STUDY OF A CENTRIFUGING TECHNIQUE FOR OILFIELD PRODUCTION PIT CLOSURE.

Document Type

Conference Proceeding

Publication Date

1-1-1987

Abstract

A full scale study of a centrifuge-based technique for dewatering production pit sludges was performed at the LSU Solids Control and Environmental Laboratory (LSU SCEL). The study was conducted with an emphasis on the application of the centrifuge dewatering process to production pit closure. Full scale experiments were performed to analyze the mechanism of high centrifugal force sedimentation for a non-chemically destablized production pit sludge (classification). The applicability of primary solids removal by centrifuge classification as a first stage in dewatering, followed by chemical conditioning and centrifuging as a second stage, was determined. Also, full scale tests were run in order to qualitatively understand the effects of varying fundamental centrifuge parameters, such as the bowl/scroll differential speed and centrifugal force, on the composition and quality of the centrifuge underflow and overflow from chemically destabilized feed. In addition, the concentration of metals in the production pit sludge and centrifuge products from the dewatering process were measured.

Publication Source (Journal or Book title)

American Society of Mechanical Engineers, Petroleum Division (Publication) PD

First Page

9

Last Page

25

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