Page 40: of Offshore Engineer Magazine (Apr/May 2014)

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Geology & Geophysics

Schlumberger’s CoreFlow services combine both physical and digital analysis to reduce lab time from months down to days, and even hours.

Audrey Leon spoke with

Schlumberger’s Mark A.

Andersen to ? nd out more.

Rock analysis enters new era examines pores and grains at the micro- untouched. Scanning gives us a sense of and nanometer levels, providing digital core recovery – what’s the quality? If the views of ? ow characteristics. rock is friable, it may not stand up well to

The lab is not meant to replace mechanical shaking involved in transport. physical analysis, but to complement it, CT scanning allows us to determine if the says Mark A. Andersen, Schlumberger core analysis can continue as planned. ” “The initial CT scan allows identi? cation

Domain Head for Core Physics and

Manager of the Digital Core Analysis of different rock types,” Andersen says.

group at the Schlumberger Reservoir “If you do one energy scan, you cor-

Laboratory in Houston. relate to the bulk density of the sample. “By having both physical and digital Addition of a second energy level analysis in the same building we have provides information about the effective all the material to make the comparison atomic number; from that we can back and help the client get more complete out chemical information that indicates answers,” Andersen says. mineralogy,” he says.

Another component of the rock analy-

The process sis is the heterogeneous rock analysis

The whole-core method uses samples (HRA), which allows the system to type that are captured from the reservoir that similar rock characteristics, and label are typically 4in in diameter and up to them by color. This helps to obtain more

Scanning electron microscope (SEM) imaging and analysis o