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