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  • Create short-term prediction model on production response to various multi-well production regimes

  • Compare the well dynamics and and cross-well connectivity with expectations and identify the candidates for drilling, workover or additional well surveillance

  • Assess dynamic reservoir properties


Outputs

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Production History



Simulated total subsurface flowrate history,

LaTeX Math Inline
bodyq_t(t)

Simulated BHP history,

LaTeX Math Inline
body--uriencoded--p_%7Bwf%7D(t)

Simulated formation pressure history,

LaTeX Math Inline
bodyp_e(t)

Simulated Productivity Index history,

LaTeX Math Inline
bodyJ_t(t)

Simulated Cross-well interference history, 

LaTeX Math Inline
body--uriencoded--p_%7Bk \rightarrow m%7D(t)

Production Forecast

Rate forecast under Pressure Control regime, 

LaTeX Math Inline
body--uriencoded--p_k(t), \%7B q_m(t) \%7D \rightarrow q_k(t)

BHP forecast under Liquid Control regime, 

LaTeX Math Inline
body--uriencoded--\%7B q_m(t) \%7D \rightarrow p_%7Bwf, \, k%7D(t)

Formation pressure forecast under Liquid Control regime, 

LaTeX Math Inline
body--uriencoded--\%7B q_m(t) \%7D \rightarrow p_%7Be, \, k%7D(t)

Diagnostic Metrics









Cross-well interference map
Unit-rate Transient Response Matrix (UTRM)
Unit-rate Transient Response Spider (UTRS)
Material Balance Pressure Plot
Inflow Performance Relationship (IPR)
Cumulative Productivity Plot (Hall Plot)
J-plots
WOR diagnostics
GOR diagnostics
Primary Well & Reservoir properties


Potential drainage volume
Current dynamic drainage volume
Secondary Well & Reservoir properties




Apparent transmissibility
Apparent skin-factor 
Fracture half-length
Dynamic fracture pressure threshold


Inputs

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Primary Inputs 



PVT model 
Production/injection history for all wells in a test
Bottom-hole pressure (BHP) history for at least one well
Additional Inputs









Well locations map
Well schematic
Surface Well Tests

Drilled formation pressure, 

LaTeX Math Inline
bodyp_d
 from DST – Drill Stem Test

Drilled formation pressure, 

LaTeX Math Inline
bodyp_d
 from WFT – Wireline Formation Test

Production Logging Reports
Cased-Hole Pressure Transient Test Reports
SGS – Static Gradient Survey Reports
Well Intervention History

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