# Engineering ESP Calculation.

## Presentation on theme: "Engineering ESP Calculation."— Presentation transcript:

Engineering ESP Calculation

Pump Sizing Collect Data (well, production, fluid, electrical??)
Determine production capacity of well Calculate Total Dynamic head (TDH) and determine tubing size Select pump stage Calculate number of stage required

Calculate motor horsepower requirements and select motor

Example….. 1. Collect data Casing= 5.5” Perforation=6000’
Tubing=2.375” Pump set depth=5500’ Static fluid level=1820’ Downhole T=260F degree Wellhead P=100 psi Desire=1300 BPD Reservoir pressure=2598 psi

2. Determination production Capacity of well
Flowing fluid flow=Static fluid level+ Drawdown So, Max Drawdown (to prefs)= Flowing fluid (pref Depth)- Stat fluid Level Max Drawdown (to prefs) = 6000’-1820’= 4180’ Max drawdown P(psi)= Max Drawdown (to prefs)XPG Max drawdown P(psi)=4180’ X .433 psi/ft= 1810’ Max Flow (Drawdown to pref)= Max drawdown P(psi)XPI Max Flow (Drawdown to pref)= 1810’ X .9 BPD/psi = 1629 BPD

3. Calculate 1300 BPD Flow level at BPD= Stat fluid level+ Drawdown Drawdown P (psi)= Desired / PI =(1300 / .9)=1444 psi Drawdown feet= Drawdown P/ PG Drawdown feet =(1444/.433)= 3335 ft Flowing fluid 1300 BPD= Stat fluid level+ Drawdown feet =1820 ft ft =5155 ft

Continue Friction Loss= 31 ft/ 1k X5.5k ft= ft

31 ft /1k ft

Continue WHP= 100 psi/ (.433 psi/ ft)=231 ft Therefore,
Total Dynamic Head =5155 ft ft= ft

4. Selecting Pump stage type
Based on the desired flow rate(1300 BPD) Select DN1300

5. Calculate Number of Stages Req
@ 1300 BPD, DN1300 Generates 20.4 ft/stage. (from 60 Hz 3500 RPM pump curve) Number of stages = TDH/ Head ft # of Stages= ft/ (20.4 ft/ stage)= 272 stages However, Use full housing of 276 stage