Reservoir Engineering
Rate Transient Analysis
Since 2009, we have gained extensive experience working in the WCSB, US and all over the globe. Our recent projects include complex studies in the Unconventional and Conventional plays in North America and worldwide. We have accumulated an outstanding knowledge library performing multidisciplinary studies combined with data acquisition and integration.
Rate Transient Analysis (RTA)
Uses flowing well pressures and production rates to determine reservoir and stimulation properties
What insights can an RTA provide?
• Identification of flow regimes in the reservoir
• Estimation of hydraulic fracture properties
• Estimation of reservoir permeability
• Estimation of hydrocarbons originally in place
• Well forecasts
Benefits of RTA
• Does not require well to be shut-in or specialized measurements, readily available data used in analysis
• Especially beneficial in low perm reservoirs where time to reach boundary dominated flow is large
• Integration into interactive reservoir models
Rate Transient
Analysis
Case Study |
Flow Regime
Identification
- Flow regime identification of a multifractured horizontal well in a halo oil play using flowing pressure and production data
Rate Transient
Analysis
Case Study |
Straight Line Analysis
- Straight line analysis above used to estimate effective fracture half length and effective wellbore length
- Depending upon flow regimes present, straight line analysis can be used to obtain initial estimates of hydraulic fracture properties, reservoir permeability or hydrocarbons-in-place
Rate Transient
Analysis
Case Study |
Type Curve Analysis
- Type curve analysis used to validate the initial estimates of reservoir and stimulation properties calculated in the straight line analysis
Rate Transient
Analysis
Case Study |
History Match And Forecast
- Numerical Simulation (history match and forecast) of production data using calculated characteristics to confirm interpreted characteristics and forecast future production
Rate Transient
Analysis
Case Study |
Reservoir Model Integration
- Properties calculated from RTA can be incorporated to build and refine sophisticated reservoir model
