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Project-4 Investigation of Multiphase Flow Behavior in Horizontal Oil Wells

Project-4 Investigation of Multiphase Flow Behavior in Horizontal Oil Wells. Cem Sarica. Drivers. Liquid Rich Shales are Immediate Interest of Most Companies Due to Market Forces There are No Tools to Predict the Behavior of Oil Dominated Multiphase Flow in Horizontal Wells

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Project-4 Investigation of Multiphase Flow Behavior in Horizontal Oil Wells

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  1. Project-4Investigation of Multiphase Flow Behavior in Horizontal Oil Wells Cem Sarica

  2. Drivers • Liquid Rich Shales are Immediate Interest of Most Companies Due to Market Forces • There are No Tools to Predict the Behavior of Oil Dominated Multiphase Flow in Horizontal Wells • Understanding of the Flow Behavior is Key in the Design and Operation of Artificial Lift Systems

  3. Objectives • Study Multiphase Flow Characteristics for Horizontal Oil Wells Experimentally/Theoretically • Investigate How the Well Geometry or Trajectory Affects the Flow

  4. Study Plan • Experimental • Modeling

  5. Experimental Study • Operating Conditions of Horizontal Wells will Experimentally be Simulated After Completion of Gas Dominated Flow Testing • Testing will Be Performed for Various Gas and Liquid Flow Rate Combinations That are Typical of Horizontal Oil Well Production

  6. Modeling • Development of a Mechanistic Model (Physics Based) to Predict the Flow Behavior • Experimental Results will be Utilized in Model Development

  7. Deliverables • Understanding of the Oil Dominant Flow Behavior of Horizontal Wells • Experimental Data • Model Describing Flow Behavior

  8. Consideration for Advisory Board • Most Oil Dominated Systems have High GOR • Suggestion • Merge Oil Project-4 into Projects 2 and 3 by Expanding Testing Range of Projects 2 and 3 • Justification

  9. Hydrocarbon Fluid Regions(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) • Oil • Liquids rich, Super rich, Wet Gas • Higher BTU gas -> NGLs from gas processing • Condensate • Dry gas

  10. Reservoir Gas-Oil Ratio(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) GOR indicates gas condensate

  11. Marcellus GOR Histogram(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) Data from PA DEP

  12. McCain’s Generalizations for Fluid Types(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) API is not a good indicator of fluid type!

  13. Example Phase Diagram for Wet Gas(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) Clarification Traditional definition of “Wet Gas” reflects gas and condensate only. Current usage is to denote NGL-rich gas. NGL’s are a gas at production conditions and do not impact liquid loading Chart after Bill McCain

  14. Marcellus WGR Histogram(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) Data from PA DEP

  15. Liquid Volume Fraction(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar)

  16. Superficial Velocity (5.5-in Casing at 500 psia & 150°F)Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar)

  17. Horizontal Multiphase Flow Patterns(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar)

  18. Comparison of +1° and +5° Maps(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) +5° +1°

  19. Comparison of -1° and -5° Maps(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) -5° -1°

  20. Comparison of +5° and -5° Maps(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) -5° +5°

  21. Projected Operating Conditions(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar) 2.5 - 22 Years No “oil” type curve – assume 25-100 STBOPD at 2000 SCF/STB GOR. For gas-water, assume water rate 5-200 STBWPD.

  22. Operating Areas for Oil & Gas on +5° FPM(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar)

  23. Operating Areas for Oil & Gas on -5° FPM(Rob Sutton Presentation at 3rd Annual Appalachian Basin Gas Well Deliquification Seminar)

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