Downhole fluid analysis (DFA) is a new, rapidly growing discipline in wireline logging and has become a keystone in reservoir evaluation.

DFA addresses the twin failed and overly optimistic assumptions that oil reservoirs consist of "one giant tank of one homogeneous hydrocarbon." DFA naturally finds compositional gradients and identifies compartments by simple new methods. Morevoer, DFA offers novel ways to establish reservoir connectivity with new data streams not previously encountered in reservoir reconnaissance.

Chapter 1, "The Distribution of Reservoir Fluids and Their Characterization by DFA," describes the evolving symbiotic understanding of reservoir complexities through DFA interpretation. DFA relies on bulk optical spectroscopy, a technology not previously used in the upstream oil business. Chapter 2, "The Photophysics of Reservoir Fluids: The Scientific Foundation of Optical DFA Measurements," establishes in broad context the scientific validity of DFA measurements.

Schlumberger customers may acquire complimentary single copies of this book from their Schlumberger representative.