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1. (WO2017151123) A SPACE MAPPING OPTIMIZATION TO CHARACTERIZE MULTIPLE CONCENTRIC PIPES

Pub. No.:    WO/2017/151123    International Application No.:    PCT/US2016/020378
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 03 00:59:59 CET 2016
IPC: E21B 47/00
G01V 3/18
G01V 3/38
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: KHALAJ AMINEH, Reza
DONDERICI, Burkay
SAN MARTIN, Luis Emilio
Title: A SPACE MAPPING OPTIMIZATION TO CHARACTERIZE MULTIPLE CONCENTRIC PIPES
Abstract:
Apparatus and methods can be implemented to monitor the condition of the production and intermediate casing strings in oil and gas field operations. A series of measurements can be made in a multi-pipe structure and received responses can be operated on by employing a mapping optimization procedure in which a surrogate model is updated. Estimates of one or more properties of the pipes of the multi-pipe structure can be generated using coefficients of the updated surrogate model. Additional apparatus, systems, and methods are disclosed.