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(12) Patent: | (11) CA 2540648 |
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(54) English Title: | SYSTEM AND METHOD FOR CORRECTING ERRORS IN DEPTH FOR MEASUREMENTS MADE WHILE DRILLING |
(54) French Title: | SYSTEME ET PROCEDE POUR CORRIGER DES ERREURS DE PROFONDEUR SUR DES MESURES EFFECTUEES AU COURS D'UN FORAGE |
Status: | Deemed expired |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | SMART & BIGGAR |
(74) Associate agent: | |
(45) Issued: | 2012-10-30 |
(86) PCT Filing Date: | 2004-09-28 |
(87) Open to Public Inspection: | 2005-04-14 |
Examination requested: | 2009-09-09 |
Availability of licence: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/GB2004/004123 |
(87) International Publication Number: | WO2005/033473 |
(85) National Entry: | 2006-03-29 |
(30) Application Priority Data: | ||||||
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A method and system is disclosed for automatically correcting for depth errors
in measurements taken from a drillstring during the drilling phase of the
construction of a hydrocarbon wellbore. The correction is based on a stress
profile which in turn is based on the states of the drilling rig, drill string
description length spec, borehole description trajectory, friction factor and
weight on bit.
La présente invention concerne un procédé et un système pour corriger automatiquement des erreurs de profondeur sur des mesures effectuées sur un train de forage au cours de la phase de forage de la construction d'un puits de forage d'hydrocarbures. La correction se base sur un profil de contrainte qui se base lui-même sur les états de l'appareil de forage, la spécification de longueur décrite par le train de forage, la trajectoire décrite par le trou de forage, le coefficient de frottement et le poids exercé sur le trépan.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee and Payment History should be consulted.
Title | Date |
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Forecasted Issue Date | 2012-10-30 |
(86) PCT Filing Date | 2004-09-28 |
(87) PCT Publication Date | 2005-04-14 |
(85) National Entry | 2006-03-29 |
Examination Requested | 2009-09-09 |
(45) Issued | 2012-10-30 |
Deemed Expired | 2015-09-28 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Amount Paid | Paid Date |
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Application Fee | $400.00 | 2006-03-29 | ||
Registration of a document - section 124 | $100.00 | 2006-05-25 | ||
Maintenance Fee - Application - New Act | 2 | 2006-09-28 | $100.00 | 2006-08-04 |
Maintenance Fee - Application - New Act | 3 | 2007-09-28 | $100.00 | 2007-08-07 |
Maintenance Fee - Application - New Act | 4 | 2008-09-29 | $100.00 | 2008-08-07 |
Maintenance Fee - Application - New Act | 5 | 2009-09-28 | $200.00 | 2009-08-07 |
Request for Examination | $800.00 | 2009-09-09 | ||
Maintenance Fee - Application - New Act | 6 | 2010-09-28 | $200.00 | 2010-08-09 |
Maintenance Fee - Application - New Act | 7 | 2011-09-28 | $200.00 | 2011-08-05 |
Final Fee | $300.00 | 2012-08-13 | ||
Maintenance Fee - Application - New Act | 8 | 2012-09-28 | $200.00 | 2012-08-13 |
Maintenance Fee - Patent - New Act | 9 | 2013-09-30 | $200.00 | 2013-08-13 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SCHLUMBERGER CANADA LIMITED |
Past Owners on Record |
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ALDRED, WALTER |
RINGER, MAURICE |