Schlumberger Technology Corporation

Westerngeco L.l.p.

Staffan Kari Eriksson

Kambiz Iranpour

Jan Stefan Morley

Eimund Liland

Christer Hoerlin

A technique facilitates evaluation of a tool, such as a drill tool. The technique comprises collecting tool data via a sensor on a given tool during use of that tool in a given operation, e.g. drilling operation. Additional data related to the tool is accumulated from a plurality of sources external to the tool. For example, data may be collected from both downhole sources and surface sources. Upon completion of the operation, the tool data is transmitted to the surface for processing on a processor system in combination with the data cumulated from sources external to the tool. The processing may be performed in real time as the tool data is received from downhole to enable a comprehensive diagnosis of tool health prior to retrieval of the tool to the surface.

Tool health evaluation system and methodology

A technique includes generating one or more sweep sequences for one or more seismic vibrators for a seismic survey and evaluating a cost for the sequence(s). The technique includes perturbing the sequence(s) and continuing the evaluation and perturbing until the cost is within a limit or a maximum number of perturbations is reached.

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Göteborg, Sweden

Staffan Kari Eriksson