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# Application Of Seismic Vibration To Overcome Wax Deposition

## by Neelendra Nath, Founder at PetroFirst Solutions on Sep 04, 2010

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## Application Of Seismic Vibration To Overcome Wax DepositionPresentation Transcript

• Application of Acoustic Vibration to Overcome Wax Deposition in Piping
Neelendra Nath
SPE MembershipNo.3319219
Maharashtra Institute of Technology, Pune
• Overview
Introduction
Wax Deposition: Cause and Concern
Prevention Techniques
Proposed Solution
Science Behind Technology
Wax Deposition Modeling
Prevention Modeling
Tool Parameters
Conclusion
• Introduction
• Wax Deposition: Cause and Concerns
• Microcrystalline Content of Crude
• Temperature in the flow line: Cloud Point
• Flow Rate
• Flow Velocity
• Flow Direction: Vertical or Horizontal
• Scaling
• Reduced Production
• Accentuate Corrosion
• Prevention Technique
• Proposed Solution
• Science Behind Technology
• Wax Deposition Modeling
Vd= f{ T, C, V, Q, v}
where, T  Temperature
C Paraffin Concentration
V  Flow Velocity
Q  Flow Rate
v  Drift Velocity
Concentration  Can be altered by additives
Flow Rate & Flow Velocity  Can be controlled but multiple constraints apply
Drift Velocity  Dependent factor
Temperature  Most easily altered, shows immediate results  “OUR CANDIDATE”
• Prevention Modeling
OUR CANDIDATE  Temperature
T = f{Q, h, k, S}
Controlled Parameter  Q
Q = f{E, c}
c  Damping Co-efficient (Constant)
E = Area under Hysteresis Loop
= f{ f , Y}
* Shearing Strength of Material is a major constraint
T > Cloud Point
• Tool Parameters
AC Input
Charging
Tool Positioning
Damper Requirement
Shielding & Focusing
Temperature Sensing
Frequency Range
Material Selection
• Conclusion
Simple Mechanism
Extremely Cheap
Do away with thermal jacketing
If surface controlled can be utilized for multiple application
Complete solution
• References
Computational Rheology for Pipeline and Annular Flow: Non-Newtonian Flow Modeling for Drilling and Production, and Flow Assurance Methods in Subsea Pipeline Design  by William C Chid
A.R. SolaimanyNazar, B. Dabir, ”Measurement and Modeling of Wax Deposition in Crude Oil Pipelines” , SPE- 69425 MS, presented at SPE Latin American and Caribbean Petroleum Engineering Conference, 25-28 March 2001, Buenos Aires, Argentina
Sound and Structural Viberation by Frank J. Fahy 1987
Wave Motion by J. Billingham, A.C. King 2000
Fundamental of wave and oscillations by K.UnoLingard 1988
Vibrations and waves in physics by Lain G. Main
• Questions ???
Thank you !!