Reservoir characterization

Well-Test Logging Allows Low-Cost Dynamic Characterization, Value Optimization

Two well-test logging operations have been carried out for the first time in a conventional carbonate reservoir in safe operating conditions and with repeatable results.

WTL response in front of sharp increase of injectivity when interface circulates in front of a fracture.
WTL response in front of sharp increase of injectivity when interface circulates in front of a fracture.

The development of carbonate reservoirs in a giant field offshore Abu Dhabi requires long horizontal wells but carries the risk of unwanted gas and water channeling through its inherent heterogeneities. Success depends heavily on the quality of the formation knowledge before completion. Well-testing logging (WTL) offers the advantage of recording a log of mobility at the end of the process of drilling the openhole, enabling favorable timing to influence adapted completion and stimulation design.

Field and Geological Background

The studied field is northwest of Abu Dhabi. It has a gently dipping domal asymmetric anticline structure.

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