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AssigneeBaker Hughes Oilfield Operations LLC
InventorsTuan Nguyen, James Scott Trahan, David Alexander
Estimating the term…
A casing exit assembly, including a whipstock, a mill releasably attached to the whipstock, the mill including an initiation sensor and a drive, and an anchor attached to the whipstock, the anchor including a housing with a ramp, a slip disposed to move radially of the housing upon axially transitioning on the ramp, and an interlock operably attached to the driver. A method for managing a casing exit, including running the casing exit assembly to a target location in a borehole, sensing a pressure within or around the assembly, imposing a tensile load on the interlock, releasing the interlock, moving the slip with a drive plate of the interlock, and setting the slip. A borehole system, including a borehole in a subsurface formation, a string disposed in the borehole, and a casing exit assembly, disposed within or as a part of the string.
A casing exit assembly, comprising:
(canceled)
The method as claimed and claimed 10, wherein the releasing the interlock includes aligning a recess of an interference bar with an interference pin thereby allowing the interference pin to disengage from the housing.
The method as claimed and claimed 10, wherein the imposing the tensile load is by pulling with a cable connected to the drive.
The method as claimed and claimed 12, further including rotating the drive and converting the rotary motion to linear motion to tension the cable.
The method as claimed and claimed 10, wherein the sensing includes generating a signal to the drive when the sensor senses a threshold pressure.
The method as claimed and claimed 11, wherein the releasing the interlock includes loading and release member to release the interference bar from a drive bar.
Dependencies are inferred from the claim text.