Permeability and Fluid Identification and Contacts in a Single Descent
Independent confirmation of reservoir producibility
The CMR combinable magnetic resonance and MDT modular formation dynamics tester tools give you information about permeability, fluid identification, and fluid contacts. These data let you improve your decisions about well tests and reservoir exploitation. Reduce operating and rig time expenses when you use both tools on a single wireline- or pipe-conveyed descent.
Conclusive petrophysical analysis of a complex system
A Venezuelan operator needed to confirm the presence of gas, oil, and tar. The CMR and MDT log verified the fluid type inferred by the density-neutron data.
The CMR and density-neutron data confirmed gas in two zones. The other zones had no density/neutron crossover, interpreted as oil, but several had a CMR porosity deficit attributed to the presence of tar. The resistivity log showed no contrast between the tar and hydrocarbon zones in this oil-base mud environment.
The MDT pressure points independently confirmed the presence of tar. All four pressure tests attempted in the tar zones resulted in dry tests. All pressure points attempted in the gas or light-oil zones produced good pressure and mobility readings.
Benefits
- Independent confirmation of reservoir producibility
- Permeability
- Fluid identification
- Fluid contacts
- Improved efficiency
- Optimized MDT sampling and testing operations
- Single logging run capability
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