Evaluate, reevaluate, and monitor reservoirs through casing
ABC analysis behind casing lets you obtain essential well log data under any conditions, find and evaluate bypassed pay, and optimize reservoir management.
This is a suite of services rather than a single platform. Measurements can be based on objectives, formation, completion, borehole environment, lithology, reservoir dynamics, and the availability of primary evaluation data.
You can measure porosity, resistivity, lithology, shale content, fluid saturations, and pressure. You can recover formation fluid samples from cased holes.
Reduce perforating and testing costs
The lowest section of a Canadian well, through the Elkton formation, could not be logged in open hole because of unstable hole conditions. The upper section of the well, through the Rock Creek formation, had not been fully evaluated in open hole. The operator, Big Horn Resources, decided to evaluate both formations fully in cased hole using ABC services.
ABC logs and analyses confirmed the Elkton formation was dry.
In the Rock Creek formation, CHFR cased hole formation resistivity data agreed with openhole deep-resistivity measurements. Other data confirmed openhole porosity measurements. CHDT cased hole dynamics tester pressure data established a fluid gradient and permeabilities.
With ABC resistivity and porosity measurements, the operator completed the Rock Creek formation well. Accurate evaluation through casing saved USD 40,000 in perforating and testing costs.
Benefits
- State-of-the-art formation evaluation measurements in old wells
- Data acquisition when openhole logging conditions are difficult
- Risk minimization through planned cased hole logging
- Cost minimization through planned cased hole logging
- Data for time-lapse analysis with most measurements the same type as primary openhole measurements
- Reduction of risk associated with asset purchase
Measure multiple pressure tests and sample fluids from behind casing.
Detect and evaluate bypassed hydrocarbons with deep-reading formation resistivity measurements.
Understand rock stresses and predict formation integrity.
Compressional and shear sonic in cased wells.
Increase efficiency and reduce risk.
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