• Title/Summary/Keyword: Shale shaker

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Structural and Vibration Analysis of On-shore Drilling System Consisting of Shale Shaker (시추용 육상 드릴링 시스템의 셰일 쉐이커 구조 및 진동해석)

  • Ban, Im-jun;Lim, Chae-og;Shin, Sung-chul
    • Journal of the Korean Society of Industry Convergence
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    • v.23 no.6_2
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    • pp.1033-1042
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    • 2020
  • Shale shaker which is one of the mud circulation systems is composed of a basket, a vibrator and a screen. Its purpose of a shale shaker is to induce drilling fluid to flow through a screen, transport solids across a screen surface, and discharge solids off the end of the screen. The new shale shaker for the on-shore drilling system is designed to be smaller than the original shale shaker which has the same capacity with the new on to enable to transport and to operate on the trailer. In this study, structural and vibrational analysis of shale shaker was carried out to evaluate the appropriateness of the design in terms of the structural stability.

Risk Based Accidental Limit State Evaluation on Explosion Accident at Shale Shaker Room of Semi-Submersible Drilling Rig (반잠수식 시추선의 Shale Shaker Room 폭발 사고에 대한 위험도 기반 사고한계상태 평가)

  • Yoo, Seung-Jae;Kim, Han-Byul;Park, Jin-Hoo;Won, Sun-Il;Choi, Byung-Ki
    • Special Issue of the Society of Naval Architects of Korea
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    • 2015.09a
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    • pp.69-73
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    • 2015
  • An evaluation of the accidental limit state (ALS) for design of a semi-submersible drilling rig is one of the essential design requirements as well as ultimate limit state (ULS) and fatigue limit state (FLS). This paper describes the ALS evaluation on the explosion accident at shale shaker room of semi-submersible drilling rig. There are three steps for the ALS evaluation such as structural analysis at concept design, risk based safety design and structural analysis at detailed design. For the ALS evaluation at concept design, conceptual explosion overpressure from the Rule guided by the classification society was used in the structural analysis that was carried out using LS-DYNA. To set up the design accidental load (DAL), explosion analysis was carried out using FLACS taking safety barriers into consideration. Then, the structural analysis was carried out applying DAL for the ALS evaluation at detailed design. Through the ALS evaluation on the explosion at shale shaker room, the importance of the risk based safety design was described.

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A Study for Basic Durability Assessment of Shale Shaker (셰일 셰이커 기초 내구성 평가에 관한 연구)

  • Oh, Jung-Soo;Kim, Sung-Min;Whang, Jong-Duk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.10
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    • pp.296-302
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    • 2019
  • In this study, a basic durability assessment was performed by selecting the main part of a trial product of a shale shaker, which is one of components for a mud circular system. For a preliminary durability assessment, it was assumed that the lifetime of the bearing for the vibrator motor and the stiffness of the support spring are affected by the vibration when the motor operates continuously. In the case of the motor, the initial p-p level was 0.72 g, but after 100 hours of operation, the p-p level was rapidly increased to 1.26 g. Bearing defects could be estimated through ball defect frequency analysis. In the case of the spring, the stiffness of the spring was reduced by approximately 3.78% at the end of 2,000 hours of the fatigue-durability test by applying excitation conditions to shale shaker body. In the future, we will analyze the influence of the particle removal efficiency of the shale shaker.