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(12) Patent Application: | (11) CA 2216784 |
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(54) English Title: | A METHOD AND A DEVICE FOR DIRECTIONAL DRILLING |
(54) French Title: | PROCEDE ET DISPOSITIF DE FORAGE DIRECTIONNEL |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(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: | GOWLING WLG (CANADA) LLP |
(74) Associate agent: | |
(45) Issued: | |
(86) PCT Filing Date: | 1996-03-28 |
(87) Open to Public Inspection: | 1996-10-03 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/NO1996/000069 |
(87) International Publication Number: | WO 1996030617 |
(85) National Entry: | 1997-09-29 |
(30) Application Priority Data: | ||||||
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A method and a device for directional drilling, especially for directional
drilling of holes in the crust of the earth, e.g. gas and oil wells (1), where
at least one shear jet (13) works an eccentrically located part face in
relation to the substantially circular working face of a rotary bit (5). A
device for directional drilling where one or more shear jets (13) are
rotationally disposed around a rotational axis (11) eccentrically placed in
relation to the axis (6) of the bit (5), and where the hit point of the shear
jets (13) is asymmetrically situated in relation to the rotational axis (11).
When the bit (5) rotates around the axis (6), the hit point of the shear jets
(13) keeps a predetermined orientation in relation to the rotational axis
(11), whereby the shear jets (13) sweep an area eccentrically located in
relation to the axis (6) of the bit (5).
L'invention porte sur un procédé et un dispositif de forage directionnel s'appliquant notamment au forage de puits (1) de pétrole ou de gaz dans l'écorce terrestre. Selon ce procédé, au moins un jet de cisaillement (13) travaille dans une zone partielle excentrique par rapport à la zone d'attaque pratiquement circulaire d'un trépan (5) pour forage rotary. Le dispositif de forage directionnel consiste en un ou plusieurs jets de cisaillement (13) fixés de façon rotative autour d'axes de rotation excentrés par rapport à l'axe de rotation (6) du trépan (5). Le point d'impact des jets de cisaillement est asymétrique par rapport à l'axe de rotation (11). Lorsque le trépan (5) tourne autour de son axe (6), le point d'impact des jets de cisaillement (13) conserve une orientation prédéterminée par rapport à l'axe de rotation (11), le jet de cisaillement (13) balayant ainsi une aire excentrée par rapport à l'axe (6) du trépan (5).
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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Application Not Reinstated by Deadline | 2000-03-28 |
Time Limit for Reversal Expired | 2000-03-28 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 1999-03-29 |
Inactive: First IPC assigned | 1997-12-18 |
Inactive: IPC assigned | 1997-12-18 |
Inactive: IPC assigned | 1997-12-18 |
Classification Modified | 1997-12-18 |
Letter Sent | 1997-12-05 |
Inactive: Notice - National entry - No RFE | 1997-12-05 |
Application Received - PCT | 1997-12-03 |
Application Published (Open to Public Inspection) | 1996-10-03 |
Abandonment Date | Reason | Reinstatement Date |
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1999-03-29 |
The last payment was received on 1998-03-12
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Please refer to the CIPO Patent Fees web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Registration of a document | 1997-09-29 | ||
Basic national fee - standard | 1997-09-29 | ||
MF (application, 2nd anniv.) - standard | 02 | 1998-03-30 | 1998-03-12 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ROGALANDSFORSKNING |
Past Owners on Record |
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OLA MICHAEL VESTAVIK |