Schlumberger Technology Corporation

Camco International, Inc.

James R Hogan

Benoit Couet

William John Bailey

Iain S Weir

Olegario S Rivas

A statistical methodology is disclosed to provide time-to-event estimates for oilfield equipment. A method according to the present invention extracts unbiased information from equipment performance data and considers parameters interactions without recourse to data thinning. The analysis explicitly accounts for items of equipment that are still operational at the time of analysis. A method according to the present invention may also be utilized to apply survival analysis to any oilfield equipment components where time-to-event information has been recorded. The method of the present invention allows comparative reckoning between different components present in the system comprising several or many individual components and allows analysis of these components either individually or simultaneously, i.e., in the presence of other components.

Statistical method for analyzing the performance of oilfield equipment

A system and method for predicting a specific aspect, such as run life, of a component or system. The system utilizes a variety of complexity index values that are assigned to each component of the system. Each complexity index value is determined according to select physical parameters of the component. The summing of the complexity index values provides a system complexity index value that can be used to accurately estimate, for example, the run life of the system.

Complexity index methodology for the analysis of run life performance

A component, such as an electric motor, for use in a subterranean environment. The component comprises an attached recording system to record the cumulative use time of the component. The recording system typically includes a timing circuit or other circuit to output data related to use of the component. This data is recorded by a recording device to maintain a cumulative total.

Growing community of inventors

Bartlesville, OK, United States of America

James R Hogan