Title:
PERMEABILITY DETERMINATIONS FROM WIDEBAND EM MODELS USING BOREHOLE LOGGING TOOLS
Document Type and Number:
WIPO Patent Application WO/2018/217832
Kind Code:
A3
Abstract:
A permeability log is generated by running borehole tools in a borehole traversing a formation, including at least electromagnetic (EM) tool providing at least a low-frequency complex conductivity measurement at at least one frequency. Data from the EM tool and other data obtained from other tools are provided to a wideband EM model, where a data inversion is conducted to provide a plurality of outputs from which a cementation exponent may be calculated. The cementation exponent is used to find a formation factor at each depth of interest in the borehole, and the formation factor is used to find a permeability value which is used for the permeability log. The permeability log may be generated without the use of core data.
Inventors:
SELEZNEV NIKITA V (US)
HABASHY TAREK M (US)
HABASHY TAREK M (US)
Application Number:
PCT/US2018/034024
Publication Date:
January 03, 2019
Filing Date:
May 23, 2018
Export Citation:
Assignee:
SCHLUMBERGER TECHNOLOGY CORP (US)
SCHLUMBERGER CA LTD (CA)
SERVICES PETROLIERS SCHLUMBERGER (FR)
SCHLUMBERGER TECHNOLOGY BV (NL)
SCHLUMBERGER CA LTD (CA)
SERVICES PETROLIERS SCHLUMBERGER (FR)
SCHLUMBERGER TECHNOLOGY BV (NL)
International Classes:
G01V3/26; E21B47/00; G01V3/38
Foreign References:
| US20160178785A1 | 2016-06-23 | |||
| US20160187521A1 | 2016-06-30 | |||
| US20080290874A1 | 2008-11-27 | |||
| US20100324826A1 | 2010-12-23 | |||
| US20160139293A1 | 2016-05-19 |
Attorney, Agent or Firm:
LAFFEY, Bridget M. et al. (US)
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