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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0250273 (2008-10-13) |
등록번호 | US8011451 (2011-08-23) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 69 인용 특허 : 742 |
A method for forming two or more wellbores in a subsurface formation includes forming a first wellbore in the formation. A second wellbore is directionally drilled in a selected relationship relative to the first wellbore. At least one magnetic field is provided in the second wellbore using one or m
A method for forming two or more wellbores in a subsurface formation includes forming a first wellbore in the formation. A second wellbore is directionally drilled in a selected relationship relative to the first wellbore. At least one magnetic field is provided in the second wellbore using one or more magnets in the second wellbore located on a drilling string used to drill the second wellbore. At least one magnetic field is sensed in the first wellbore using at least two sensors in the first wellbore as the magnetic field passes by the at least two sensors while the second wellbore is being drilled. A position of the second wellbore is continuously assessed relative to the first wellbore using the sensed magnetic field. The direction of drilling of the second wellbore is adjusted so that the second wellbore remains in the selected relationship relative to the first wellbore.
What is claimed is: 1. A method for forming two or more wellbores in a subsurface formation, comprising:forming a first wellbore in the formation;directionally drilling a second wellbore in a selected relationship relative to the first wellbore;transmitting a first electromagnetic wave from a first
What is claimed is: 1. A method for forming two or more wellbores in a subsurface formation, comprising:forming a first wellbore in the formation;directionally drilling a second wellbore in a selected relationship relative to the first wellbore;transmitting a first electromagnetic wave from a first transceiver in the first wellbore and sensing the first electromagnetic wave using a second transceiver in the second wellbore;transmitting a second electromagnetic wave from the second transceiver in the second wellbore and sensing the second electromagnetic wave using the first transceiver in the first wellbore;continuously assessing a position of the second wellbore relative to the first wellbore using the sensed first electromagnetic wave and the sensed second electromagnetic wave; andadjusting the direction of drilling of the second wellbore so that the second wellbore remains in the selected relationship relative to the first wellbore.
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