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PERFORMANCE STUDY OF A BENCH SCALE SHALE SHAKER

Ghaniyari Benis, Saeid
http://rave.ohiolink.edu/etdc/view?acc_num=akron1508665897207133

Abstract Details

, Doctor of Philosophy, University of Akron, Chemical Engineering.
The shale shaker has been used in the drilling industry for many years for removing sand and coarse particles from drilling fluids. The performance envelopes of most shale shakers were determined empirically. Systematic empirical studies of full scale shakers are difficult and expensive to conduct due to the high volumetric flow rates of drill fluid and coarse materials flowing through the shaker. In a recent effort to reduce the experimental costs, a bench scale shale shaker provided by M-I SWACO was tested. As an initial performance characterization of the bench scale shaker, the bench scale shaker was evaluated in the separation of sand from a sand-water slurry. In a shale shaker operation, the coarse particles form a cake on the screen as the liquid phase flows through the cake and through the screen. The vibrations move the cake of solids forward on the screen until the cake falls off the end of the screen. The operating envelope of the bench scale shaker was developed for separating 2, 4, and 6 % concentrations by mass of sand in water for variations of vibration frequency, deck angle, and vibration acceleration. The results showed that the flow rate of liquid leaving at the bottom of screen and velocity of the wet sand cake exiting the screen decreased with deck angle and increased with acceleration. The cake velocity increased with the vibration frequency and resulted in in thinner sand cakes on the screen. The moisture contents of the exiting sand cakes were strongly dependent on the frequency, moderately dependent on the acceleration, and were weakly dependent on deck angle. In the second phase of this research, the prior continuum model of the cake is improved and model calculations are compared with experimental data from a benchscale shale shaker (M-I SWACO, A Schlumberger Company). Few studies have been published on the performance of shale shakers. Experimental studies of shale shaker performance have been limited for several reasons, but mainly because they are time consuming and expensive to conduct. The slurries of fine and coarse particles tend to settle with gravity making consistency of the solids concentrations very difficult to achieve with the large volumes of fluid required during the operation of a full scale shale shaker. To overcome some of the experimental issues of a full scale shaker a custom made small scale shaker was fabricated and tested. To evaluate the small scale shaker performance without the variabilities introduced by the presence of clay particles, the experiments were conducted with sand as the coarse particles and water as the liquid phase. The small scale shaker reduced the operating time needed to reach steady state and it reduced the volume of liquid required for the operation. The results of this work will serve as a baseline for the shaker performance for comparison in future works with fluids containing fine clay.
George Chase, Dr (Advisor)
Chemical Engineering

Recommended Citations

Citations

  • Ghaniyari Benis, S. (n.d.). PERFORMANCE STUDY OF A BENCH SCALE SHALE SHAKER [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1508665897207133

    APA Style (7th edition)

  • Ghaniyari Benis, Saeid. PERFORMANCE STUDY OF A BENCH SCALE SHALE SHAKER. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1508665897207133.

    MLA Style (8th edition)

  • Ghaniyari Benis, Saeid. "PERFORMANCE STUDY OF A BENCH SCALE SHALE SHAKER." Doctoral dissertation, University of Akron. Accessed APRIL 18, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=akron1508665897207133

    Chicago Manual of Style (17th edition)

akron1508665897207133
3,544
© , some rights reserved.Creative Commons License PERFORMANCE STUDY OF A BENCH SCALE SHALE SHAKER by Saeid Ghaniyari Benis is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.