Sensor transportation apparatus and guide device
AssigneePetromac IP Limited
InventorStephen Peter McCormick
Life of this patent
Estimating the term…
Abstract
A sensor transportation apparatus to convey a sensor assembly through a wellbore. The apparatus comprising has an engagement structure to connect the sensor transportation apparatus to the sensor assembly, and one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly. An orientation structure defining a form having a transverse outline which has a rotational center, wherein the rotational center is offset from a centroidal axis of the elongate sensor assembly.
Claims21
A sensor transportation apparatus to convey an elongate sensor assembly through a wellbore, the sensor transportation apparatus comprising:
- at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly, and
- one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly, and
- an orientation structure defining a form having a transverse outline which has a rotational centre, wherein the rotational centre is offset from a centroidal axis of the elongate sensor assembly when the transportation apparatus is connected to the sensor assembly, and
- wherein a rotational axis of each said wheel is above the centroidal axis of the elongate sensor assembly when the transportation apparatus is connected to the sensor assembly and the sensor transportation apparatus is substantially horizontal.
A guide device for guiding an elongate sensor assembly in a wellbore and an orientation structure for orientating the guide device in the wellbore, the guide device comprising a base to engage an end of the elongate sensor assembly and a nose section having a tip which is offset from the longitudinal axis of the elongate sensor assembly when the guide device is engaged with said elongate sensor assembly, and
- wherein the nose section with said tip is arranged to project away from the base at a fixed angle to a longitudinal axis of the elongate sensor assembly when the guide device is engaged with said elongate sensor assembly.
An elongate sensor assembly provided with a sensor transport apparatus for transporting said sensor assembly through a wellbore, and an orientation structure, wherein
- the sensor transportation apparatus comprises:
- at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly, and
- one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly, and wherein
- the orientation structure defines a form that has a transverse outline which has a rotational centre which is offset from a centroidal axis of the elongate sensor assembly when the transportation apparatus is connected to the sensor assembly, and
- wherein a rotational axis of each said wheel is above the centroidal axis of the elongate sensor assembly when the transportation apparatus is connected to the sensor assembly and the elongate sensor assembly is substantially horizontal.
A sensor transportation apparatus to convey an elongate sensor assembly through a wellbore, the sensor transportation apparatus comprising:
- at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly, and
- one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly, and
- an orientation structure defining a form having a transverse outline which has a rotational centre, wherein the rotational centre is offset from a centroidal axis of the elongate sensor assembly, and
- a guide device, having a base adapted to engage an end of the elongate sensor assembly and a nose section having a tip which is offset from the longitudinal axis of the elongate sensor assembly when the guide device is engaged with said elongate sensor assembly.
Dependencies are inferred from the claim text.