Specific type of Production Analysis (PA) workflow based on correlation between multi-well production/injection history and permanent downhole gauges (PDG) data records.
The key engine of MRT is pressure convolution which is based on unit-rate transient responses retrieved from Production rates / PDG data history by means of pressure deconvolution.
It does not require new data acquisition at well site and makes use of existing dynamic data records.
The ultimate purpose of MRT is to extract maximum information from correlation between the flowrate and BHP history.
This information is further related to well flow performance and cross-well connectivity.
Goals
Create a flowrate/pressure prediction model with account of cross-well interference
Objectives
Inputs
Outputs
Applications
Production forecasts | |
---|---|
Predict formation pressure without shutting wells down and avoiding production deferment | |
Short-term production forecasts for different production scenarios | |
Selecting well-intervention candidates | |
Identify well-intervention candidates with possible thief production/injection | |
Identify well-intervention candidates with possibly inefficient reservoir flow profile | |
Identify well-intervention candidates for Rate Optimization | |
Identify well-intervention candidates for producer ↔ injector conversion | |
Dynamic Model Calibration | |
Adjusting historical production allocation | |
Adjusting the potential reservoir volume extension at different directions | |
Adjusting faults / channels / compartmentalization | |
Adjusting fracture model |
Example
Fig. 1. Well locations with current production bubble map over the structural map | Fig. 2. Production / Injection history |
Fig. 3. UTR output diagram from MDCV which is a key element of MRT. The column wells showing pressure response to row wells. Diagonal elements are showing self-response DTRs. Non-diagonal elements showing cross-well response CTRs. |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis
[ Material Balance Analysis ] [ Capacitance Resistance Model (CRM) ] [ Pressure convolution] [ Pressure deconvolution ] [ Pressure Transient Analysis (PTA) ]
[ MDCV ]
[ RDCV ][ RDCV @model ][ RDCV @samples ]
[ XDCV ][ XDCV @model ][ XDCV @samples ]