Cable suspending and recovery device and method for use with tools deployed in subsurface wells
AssigneeSchlumberger Technology Corporation
InventorsIain Maclean, Ivor Maciver
Life of this patent
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Abstract
A method for deploying a tool in a well on an electrical cable comprises attaching a cable suspension and recovery device to the cable at a position chosen such that the device is disposed below a wellhead at an upper end of the well when the tool is disposed at a selected depth in the well. The device has a diameter larger than a landing profile disposed in the well, the device having a diameter enabling free movement through the well and flow of fluid around the device in the well. The tool is attached to an end of the cable. The tool is deployed in the well by extending the cable.
Claims18
A method for deploying a tool in a well on an electrical cable, comprising:
- attaching a cable suspension and recovery device to the cable at a first position chosen such that the device is disposed below a wellhead at an upper end of the well when the tool is disposed at a selected depth in the well, the device including a housing having an upper segment and a lower segment releasably connectable to each other, the upper segment and the lower segment each comprising respective cable slips to engage a respective one of an upper portion and a lower portion of the cable and to transfer axial loading on the cable to the housing, the housing including a go-no go feature on an exterior of the housing, and the go-no go feature having a diameter larger than a diameter of the housing and shaped to be stopped by the landing profile;
- attaching the tool to an end of the cable;
- and
- deploying the tool in the well by extending the cable.
A cable recovery and suspension device, comprising:
- a housing comprising an upper segment and a lower segment, wherein the upper segment is releasably connectable to the lower segment, the upper segment and the lower segment each comprising respective cable slips to transfer axial loading on a cable portion passing through the respective segment to the respective segment, the housing comprising a go-no go feature on an exterior surface of the housing comprising a diameter larger than a diameter of the housing, the feature shaped to engage a landing profile in a well to prevent movement of the housing in the well beyond the landing profile.
Dependencies are inferred from the claim text.