Positioning and spinning device
First Claim
1. A method of connecting a first tubular to second tubular, comprising:
- disposing a gripping member on a derrick, the gripping member having two adjustable jaws configured to accommodate varying tubular diameters and at least one drive roller;
engaging the first tubular using the gripping member connected to a conveying member;
moving the gripping member and the engaged first tubular to align the first tubular with the second tubular;
determining a position of the gripping member, wherein the position of the gripping member aligns the first tubular with the second tubular;
memorizing the position of the gripping member;
engaging the first tubular with the second tubular;
rotating the first tubular relative to the second tubular using the at least one drive roller, wherein;
the first tubular moves along an axis thereof during rotation,the gripping member is disposed on a rail, andthe gripping member moves along the axis with the first tubular by being moved alone the rail during rotation of the first tubular; and
rotating the first tubular relative to the second tubular using a top drive until the connection is complete.
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Accused Products
Abstract
The present invention generally relates to a method and apparatus for connecting a first tubular with a second tubular. The apparatus includes a gripping member for engaging the first tubular and a conveying member for positioning the gripping member. The apparatus also includes a spinner for rotating the first tubular. In one embodiment, the spinner includes a motor and one or more rotational members for engaging the first tubular. In another embodiment, the apparatus includes a rotation counting member biased against the first tubular. In another aspect, the present invention provides a method of connecting a first tubular to second tubular. The method includes engaging the first tubular using a gripping member connected to a conveying member and positioning the gripping member to align the first tubular with the second tubular. Thereafter, the first tubular is engaged with the second tubular, and the first tubular is rotated relative to the second tubular using the gripping member.
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Citations
17 Claims
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1. A method of connecting a first tubular to second tubular, comprising:
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disposing a gripping member on a derrick, the gripping member having two adjustable jaws configured to accommodate varying tubular diameters and at least one drive roller; engaging the first tubular using the gripping member connected to a conveying member; moving the gripping member and the engaged first tubular to align the first tubular with the second tubular; determining a position of the gripping member, wherein the position of the gripping member aligns the first tubular with the second tubular; memorizing the position of the gripping member; engaging the first tubular with the second tubular; rotating the first tubular relative to the second tubular using the at least one drive roller, wherein; the first tubular moves along an axis thereof during rotation, the gripping member is disposed on a rail, and the gripping member moves along the axis with the first tubular by being moved alone the rail during rotation of the first tubular; and rotating the first tubular relative to the second tubular using a top drive until the connection is complete. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of connecting a first tubular to second tubular, comprising:
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disposing a gripping member on a derrick, the gripping member having two adjustable jaws configured to accommodate varying tubular diameters and at least one drive roller; engaging the first tubular using the gripping member connected to a conveying member; moving the gripping member and the engaged first tubular to align the first tubular with the second tubular; determining a position of the gripping member, wherein the position of the gripping member aligns the first tubular with the second tubular; memorizing the position of the gripping member; engaging the first tubular with the second tubular; rotating the first tubular relative to the second tubular using the at least one drive roller, wherein; the first tubular moves along an axis thereof during rotation, the gripping member is mounted on a spring loaded base, and the base accommodates movement of the gripping member along the axis with the first tubular during rotation of the first tubular; and rotating the first tubular relative to the second tubular using a top drive until the connection is complete.
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Specification