Schlumberger Technology Corporation

John Fuller

Walter David Aldred

John Mervyn Cook

Ian D Bryant

William T Wright

Ian Bradford

Thomas Hantschel

Nikolaos Constantinos Koutsabeloulis

Stephen Alexander Hope

Rodney Laver

Melissa Suman

Michael De Lind Van Wijngaarden

Shuja Goraya

Vidhyadhar Gholkar

Iain Rezmer Cooper

The invention provides a system and method for integrating petroleum system and geomechanical computer models for use in oil and gas exploration. In one embodiment, the invention provides a petroleum system model capable of analyzing data relating to a subterranean formation and calculating the geometry and geochemistry of each layer of the formation through geologic time. The present invention also provides a geomechanical model in communication with the petroleum system model such that information concerning each layer of the subterranean formation may be shared and cross-referenced as an iterative operation prior to the analysis of subsequent layers. At each step of the iterative operation, results are calculated, validated, and cross-referenced in order to produce improved reliability estimates of petroleum charge and mechanical seal integrity for the subterranean formation.

System and method of integrating subterranean computer models for oil and gas exploration

A method is disclosed for characterizing a drilling hazard. The method includes determining a well plan including at least a wellbore trajectory. A likelihood of occurrence of at least one drilling hazard is estimated. A severity of the at least one drilling hazard is estimated. The hazard is displayed on a representation of the wellbore trajectory, by indicating thereon a position of, the likelihood and the severity of the at least one drilling hazard.

Interactive method for real-time displaying, querying and forecasting drilling event and hazard information

A method and system for real time updating of an earth model. The efficiency with which an oil or gas well is constructed can be enhanced by updating the relevant earth model using real-time measurements of the effective density of the drilling fluid and other parameters. The method includes generating an earth model used for predicting potential problems in drilling of a borehole having a predetermined trajectory. Evaluations of the state of the borehole and local geological features are obtained which are based on the earth model. Real time data is used to create a diagnosis of the state of the borehole and local geological features. The evaluations are compared with a diagnosis to identify inconsistencies. A component of the earth model is identified that is both related to the identified inconsistency and has a high degree of uncertainty. The selected component of the earth model is then updated prior to completing construction of the borehole using the received data.

Method for updating an earth model using measurements gathered during borehole construction

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Farnham, United Kingdom

John Fuller