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MULTIWELL RETROSPECTIVE TESTING MRT - NDR

MULTIWELL RETROSPECTIVE TESTING MRT - NDR. 2018. AGENDA. OBJECTIVES. FOCUS AREA AND WELL LOCATIONS. OP 5. OP 4. OP 3. PDG. OP 1. OP2. PRODUCTION AND PRESSURE HISTORY. OP 1. OP 2. OP 3. OP 4. OP 5. #1 – RECONSTRUCT FORMATION PRESSURE HISTORY FOR OP 1.

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MULTIWELL RETROSPECTIVE TESTING MRT - NDR

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  1. MULTIWELL RETROSPECTIVE TESTING MRT - NDR 2018

  2. AGENDA

  3. OBJECTIVES

  4. FOCUS AREA AND WELL LOCATIONS OP5 OP4 OP3 PDG OP1 OP2

  5. PRODUCTION AND PRESSURE HISTORY OP1 OP2 OP3 OP4 OP5

  6. #1 – RECONSTRUCT FORMATION PRESSURE HISTORY FOR OP1

  7. #2 – PREDICT FORMATION PRESSURE BASED ON THE CURRENT RATE FOR OP1 Forecast OP1 OP2 OP3 OP4 OP5

  8. #3 – RECONSTRUCT PRODUCTIVITY INDEX HISTORY FOR OP1

  9. #4 – ASSESS FORMATION PRESSURE IMPACT ON IPR FOR OP1 Pr = 1,650 psi Pr = 1,600 psi Pr = 1,550 psi Pr = 1,500 psi Pr = 1,450 psi Pr = 1,400 psi Pr = 1,350 psi

  10. #5 – ESTIMATE SKIN-FACTOR, TRANSMISSIBILITY AND DRAINAGE AREA OF OP1 well OP1

  11. #6 – RECONSTRUCT THE HISTORY OF CROSS-WELL INTERFERENCE OP-2 → OP-1

  12. #7 – RECONSTRUCT THE HISTORY OF CROSS-WELL INTERFERENCE WITH OP1 Cumulative impact well OP3(-75 psi) Cumulative impact well OP2(-112 psi) Cumulative impact well OP1(-143 psi)

  13. #6 – RECONSTRUCT THE HISTORY OF CROSS-WELL INTERFERENCE WITH OP1 OP5 OP4 OP3 Ψ= 0 Ψ∑= 0 Ψ= -10 Ψ∑= -75 Ψ= 0 Ψ∑= 0 OP1 Ψ= -12 Ψ∑= -143 OP2 Ψ= -12 Ψ∑= -112

  14. #7 – ESTIMATE CROSS-WELL TRANSMISSIBILITY FROM OFFSET WELLS TOWARDS OP1 OP5 OP4 OP3 a=89,420 Apparent cross-well transmissibility 2,3 1is similar to near wellbore transmissibility of which 1 OP1 a=86,380 =88,000 OP2

  15. Thank you for attention Rushana Farakhova Technical Manager Sofoil DMCC / Maxwel rushana.farakhova@sofoil.com

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