Production analysis forecast

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Production analysis  forecast

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Outline  An Overview of Petroleum Production System (PPS) and the Nodal Analysis Method for PPS  Analysis of Reservoir Performance  Analysis of Wellbore Performance  Analysis of Choke Flowline Performance  Analysis of Petroleum Production System

PRODUCTION ANALYSIS AND FORECAST Dr Mai Cao Lân, HCMUT Jan, 2017 Outline  An Overview of Petroleum Production System (PPS) and the Nodal Analysis Method for PPS  Analysis of Reservoir Performance  Analysis of Wellbore Performance  Analysis of Choke & Flowline Performance  Analysis of Petroleum Production System 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam Text Books  Michael J Economides et al (1994) Petroleum Production Systems Petroleum Engineering Series Prentice Hall  H Beggs (2003) Production Optimization using Nodal Analysis OCGI & Petroskills Publications  Mukherjee & Brill (1999) Multiphase Flow in Wells Society of Petroleum Engineers 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam OVERVIEW OF PETROLEUM PRODUCTION SYSTEM & NODAL ANALYSIS METHOD 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam Petroleum Production System Gas Sales Flowing W ellhead Pressure Horiz ontal Flowline Separator Stock Tank Vertical or Inclined Tubing Intake 15/02/2017 Flow Through Porus Media P, K, IPR Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam System Analysis for Petroleum Production Systems • Analyze the performance of the system taking into account ALL of its components • Figure out potential problems associated with the production system • Analyze the behavior of the system in response to any changes of a component 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam NODAL Analysis (NA) Method • NODAL Analysis belongs to System Analysis Methods applied in Petro Eng • The method allows production engineers to analyze the performance of a petroleum production system • The method help production engineers to select optimal system parameters 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam Fundamentals of the NA Method • Always consider a component in the relationships with the others • Pressure and Pressure Losses across different components of the system are of primary interests • The performance of a system can be analyzed via one or more NODEs 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam Possible Pressure Losses P8 Pwh Gas Sales P6 Separator Psep P5 PDSV Stock Tank P4 PUSV P1 P2 P3 P4 P5 P6 P7 P8 P7 PDR P3 = (Pr - Pwf s) = (Pwf s - Pwf ) = (PUR - PDR) = (PUSV - PDSV) = (Pwh - PDSC) = (PDSC - Psep) = (Pwf - Pwh) = (Pwh - Psep) = = = = = = = = Loss in Porus Medium Loss across Completion Loss across Restriction Loss across Saf ety Valv e Loss across Surf ace Choke Loss in Flowline Total Loss in Tubing Total Loss in Flowline PUR Pwf P2 Pwf s Pr P1 15/02/2017 Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam Locations of Various Nodes 1A 1B 15/02/2017 Node Location 1A 1B Separator Surf ace Choke Wellhead Saf ety Valv e Restriction Pwf Pwf s Pr Gas Sales Stock Tank Remar ks Functional Functional Functional Dr Mai Cao Lân, Faculty of Geology & Petroleum Engineering, HCMUT, Vietnam 10 Exercise 1: Estimate PI & Plot IPR Curve • Avg Reservoir Pressure: 4269 psia • Reservoir Temperature: 210 oF • Drilling String Test Data: 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 119 Exercise 1: Estimate PI & Plot IPR Curve 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 120 Exercise 1: Estimate PI & Plot IPR Curve 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 121 Exercise 2: Calibrating Black Oil Model 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 122 Exercise 2: Calibrating Black Oil Model • Define the fluid model 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 123 Exercise 2: Calibrating Black Oil Model • Single Point Calibration 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 124 Exercise 2: Calibrating Black Oil Model • Uncalibrated Black Oil Model 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 125 Exercise 2: Calibrating Black Oil Model • Uncalibrated Black Oil Model 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 126 Exercise 2: Calibrating Black Oil Model • Calibrate OFVF above the bubble point 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 127 Exercise 2: Calibrating Black Oil Model • Calibrate OFVF below the bubble point 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 128 Exercise 3: Estimate Bottom Hole Flowing Conditions • PVT Data (Stock Tank Properties) • 15/02/2017 Reservoir and Inflow Data Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 129 Exercise 3: Estimate Bottom Hole Flowing Conditions • Wellbore Data 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 130 Exercise 3: Estimate Bottom Hole Flowing Conditions • Using Beggs & Brill revised as vertical multiphase flow correlation, calculate: – Production Rate – Flowing BHP – Flowing WHT 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 131 Exercise 4: Performing NODAL Analysis • Using the model from Exercise 3, add a Nodal Analysis Point and estimate the followings: – Operating Point Flow Rate – Operating Point BHP – AOF 15/02/2017 Dr Mai Cao Lân – Faculty of Geology & Petroleum Engineering - HCMUT 132 THE END ... Petroleum Production System (PPS) and the Nodal Analysis Method for PPS  Analysis of Reservoir Performance  Analysis of Wellbore Performance  Analysis of Choke & Flowline Performance  Analysis. .. Vietnam NODAL Analysis (NA) Method • NODAL Analysis belongs to System Analysis Methods applied in Petro Eng • The method allows production engineers to analyze the performance of a petroleum production. .. System Analysis for Petroleum Production Systems • Analyze the performance of the system taking into account ALL of its components • Figure out potential problems associated with the production

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