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US 2012/0222869 A1Published application
Wireline Cable For Use With Downhole Tractor Assemblies
AssigneeSchlumberger Technology Corporation
InventorJoseph Varkey
Life of this patent
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Abstract
A wireline cable includes an electrically conductive cable core for transmitting electrical power, an inner armor layer disposed around the cable core, and an outer armor layer, wherein a torque on the cable is balanced by providing the outer armor layer with a predetermined amount of coverage less than an entire circumference of the inner armore layer, or by providing the outer armor layer and the inner armor layer with a substansially zero lay angle.
Claims20
A method for use of a wireline cable, comprising:
- providing a torque balanced wireline cable, the cable including a cable core and a substantially smooth exterior surface;
- attaching a tractor to the cable;
- and
- introducing the tractor and the cable into a wellbore, wherein a torque on the cable is balanced and friction between the cable and the wellbore is minimized by the exterior surface as the tractor pulls the cable through the wellbore.
1 more element
Dependencies are inferred from the claim text.