Search International and National Patent Collections

1. (WO2018084865) DETERMINING PIPE PROPERTIES IN CORROSION INSPECTION

Pub. No.:    WO/2018/084865    International Application No.:    PCT/US2016/060753
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Mon Nov 07 00:59:59 CET 2016
IPC: G01R 17/02
G01N 27/82
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: GUNER, Baris
DONDERICI, Burkay
CAPOGLU, Ilker, R.
Title: DETERMINING PIPE PROPERTIES IN CORROSION INSPECTION
Abstract:
Systems and methods for detection of pipe characteristics, such as defect detection of downhole tubulars and overall thickness estimation of downhole tubulars (e.g., pipes such as casing and/or production tubing). A defect detection method may comprise disposing a defect detection tool in a wellbore, wherein the defect detection tool comprises at least one transmitter and at least one receiver; obtaining nominal parameters of pipe properties; determining nominal responses corresponding to the nominal parameters; determining a defect profile for a plurality of pipes disposed in a wellbore; determining defected responses for the defection detection tool from at least the nominal parameters and the defect profile; calculating a gradient from at least the defected responses, the nominal responses, the nominal parameters and the defect profile; making downhole measurements of the plurality of pipes using the defect detection tool; and calculating final solution parameters of the plurality of pipes using at least the downhole measurements, the nominal responses, the gradient and the nominal parameters.