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(12) Patent: | (11) CA 2351648 |
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(54) English Title: | WELL STRING INJECTION SYSTEM AND METHOD |
(54) French Title: | METHODE ET SYSTEME D'INJECTION DE GARNITURES DE FORAGE |
Status: | Term Expired - Post Grant Beyond Limit |
(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: | DENTONS CANADA LLP |
(74) Associate agent: | |
(45) Issued: | 2013-12-03 |
(22) Filed Date: | 2001-06-25 |
(41) Open to Public Inspection: | 2002-02-21 |
Examination requested: | 2001-11-23 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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A continuous feed injection unit used for example for injection and removal of continuous well string from wells operates in a dual speed configuration. The unit comprises a first hydraulic motor, a second hydraulic motor, cooperating continuous well string gripping chains connected to be driven by the first and second hydraulic motors, a hydraulic power supply connected to provide pressurized fluid to the first and second hydraulic motors and a control system for the hydraulic power supply. The control system for the hydraulic power supply has a motor speed control valve with at least a first and second operating configuration, the first operating configuration providing power fluid to the first and second hydraulic motors in parallel and the second operating configuration providing power fluid to the first and second hydraulic motors in series. The hydraulic power supply may be a conventional power tong hydraulic supply.
Un système d'injection en continu est utilisé, par exemple, pour l'injection et le retrait de garnitures de forage en continu des puits, et fonctionne dans une configuration à deux vitesses. Le système comprend un premier moteur hydraulique, un second moteur hydraulique, des chaînes de préhension des garnitures de forage en continu et en coopération connectées pour être entraînées par le premier et le second moteurs hydrauliques, un dispositif d'alimentation hydraulique relié pour fournir un fluide sous pression au premier et au second moteurs hydrauliques et un système de commande du dispositif d'alimentation hydraulique. Le système de commande du dispositif d'alimentation hydraulique comprend une soupape de régulation de la vitesse de moteur qui possède au moins une première et une seconde configurations de fonctionnement, la première configuration de fonctionnement fournissant le fluide d'alimentation au premier et au second moteurs hydrauliques en parallèle et la seconde configuration de fonctionnement fournissant le fluide d'alimentation au premier et au second moteurs hydrauliques en série. L'alimentation hydraulique peut être un tuyau d'alimentation de clés de vissage automatique.
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.
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Description | Date |
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Inactive: Expired (new Act pat) | 2021-06-25 |
Letter Sent | 2021-03-01 |
Letter Sent | 2020-08-31 |
Inactive: COVID 19 - Deadline extended | 2020-08-19 |
Inactive: COVID 19 - Deadline extended | 2020-08-06 |
Inactive: COVID 19 - Deadline extended | 2020-07-16 |
Inactive: COVID 19 - Deadline extended | 2020-07-02 |
Inactive: COVID 19 - Deadline extended | 2020-06-10 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Change of Address or Method of Correspondence Request Received | 2019-10-21 |
Inactive: Correspondence - Transfer | 2015-11-24 |
Appointment of Agent Requirements Determined Compliant | 2015-10-26 |
Inactive: Office letter | 2015-10-26 |
Inactive: Office letter | 2015-10-26 |
Revocation of Agent Requirements Determined Compliant | 2015-10-26 |
Letter Sent | 2015-10-09 |
Appointment of Agent Request | 2015-09-28 |
Revocation of Agent Request | 2015-09-28 |
Inactive: Office letter | 2015-09-03 |
Appointment of Agent Request | 2015-08-21 |
Revocation of Agent Request | 2015-08-21 |
Grant by Issuance | 2013-12-03 |
Inactive: Cover page published | 2013-12-02 |
Pre-grant | 2013-09-23 |
Inactive: Final fee received | 2013-09-23 |
Notice of Allowance is Issued | 2013-04-08 |
Letter Sent | 2013-04-08 |
4 | 2013-04-08 |
Notice of Allowance is Issued | 2013-04-08 |
Inactive: Approved for allowance (AFA) | 2013-03-28 |
Letter Sent | 2012-12-20 |
Reinstatement Request Received | 2012-11-30 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2012-11-30 |
Amendment Received - Voluntary Amendment | 2012-11-30 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2011-12-01 |
Inactive: S.30(2) Rules - Examiner requisition | 2011-06-01 |
Letter Sent | 2010-02-15 |
Reinstatement Request Received | 2010-01-29 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2010-01-29 |
Amendment Received - Voluntary Amendment | 2010-01-29 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2009-01-30 |
Inactive: S.30(2) Rules - Examiner requisition | 2008-07-30 |
Amendment Received - Voluntary Amendment | 2008-01-28 |
Appointment of Agent Requirements Determined Compliant | 2007-08-23 |
Inactive: Office letter | 2007-08-23 |
Inactive: Office letter | 2007-08-23 |
Revocation of Agent Requirements Determined Compliant | 2007-08-23 |
Inactive: S.30(2) Rules - Examiner requisition | 2007-07-27 |
Inactive: Adhoc Request Documented | 2007-07-26 |
Inactive: Office letter | 2007-07-25 |
Revocation of Agent Request | 2007-07-23 |
Appointment of Agent Request | 2007-07-23 |
Letter Sent | 2007-07-03 |
Inactive: Single transfer | 2007-06-11 |
Revocation of Agent Request | 2007-06-11 |
Appointment of Agent Request | 2007-06-11 |
Amendment Received - Voluntary Amendment | 2007-01-12 |
Letter Sent | 2007-01-09 |
Inactive: Office letter | 2006-11-28 |
Inactive: Single transfer | 2006-11-23 |
Inactive: Corrective payment - s.78.6 Act | 2006-11-21 |
Amendment Received - Voluntary Amendment | 2006-10-26 |
Inactive: S.30(2) Rules - Examiner requisition | 2006-04-26 |
Inactive: Office letter | 2006-01-12 |
Inactive: Delete abandonment | 2005-11-04 |
Inactive: Delete abandonment | 2005-11-04 |
Amendment Received - Voluntary Amendment | 2005-08-22 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2005-08-22 |
Inactive: Abandoned - No reply to s.29 Rules requisition | 2005-08-22 |
Amendment Received - Voluntary Amendment | 2005-08-22 |
Inactive: S.29 Rules - Examiner requisition | 2005-02-21 |
Inactive: S.30(2) Rules - Examiner requisition | 2005-02-21 |
Amendment Received - Voluntary Amendment | 2004-11-01 |
Inactive: Correspondence - Formalities | 2004-05-27 |
Inactive: Office letter | 2004-05-18 |
Inactive: Corrective payment - Application fee | 2004-05-13 |
Inactive: Entity size changed | 2004-05-13 |
Inactive: S.30(2) Rules - Examiner requisition | 2004-04-30 |
Inactive: S.29 Rules - Examiner requisition | 2004-04-30 |
Inactive: Correspondence - Formalities | 2003-06-24 |
Request for Examination Received | 2003-06-24 |
Amendment Received - Voluntary Amendment | 2003-01-10 |
Inactive: Correspondence - Formalities | 2003-01-10 |
Application Published (Open to Public Inspection) | 2002-02-21 |
Inactive: Cover page published | 2002-02-20 |
Inactive: Office letter | 2001-12-24 |
Letter Sent | 2001-12-17 |
Early Laid Open Requested | 2001-11-23 |
Request for Examination Requirements Determined Compliant | 2001-11-23 |
All Requirements for Examination Determined Compliant | 2001-11-23 |
Request for Examination Received | 2001-11-23 |
Inactive: Filing certificate - No RFE (English) | 2001-10-30 |
Letter Sent | 2001-10-12 |
Inactive: Filing certificate correction | 2001-08-30 |
Inactive: Single transfer | 2001-08-30 |
Inactive: First IPC assigned | 2001-08-22 |
Inactive: Courtesy letter - Evidence | 2001-07-24 |
Inactive: Filing certificate - No RFE (English) | 2001-07-23 |
Application Received - Regular National | 2001-07-23 |
Abandonment Date | Reason | Reinstatement Date |
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2012-11-30 | ||
2010-01-29 |
The last payment was received on 2013-03-28
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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AUTOMATED RIG TECHNOLOGIES LTD. |
Past Owners on Record |
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EMANUEL KULHANEK |
MARK D. WIDNEY |