Junction orienting interface for a multilateral well
AssigneeSchlumberger Technology Corporation
InventorsJose Francisco Hurtado, Mikhail V. Gotlib, Kjell Revheim
Life of this patent
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Abstract
An orienting interface for alignment of a profile feature with a window of a tubular for installation at a junction of a multilateral well. The interface includes the coupling of an orienting device that accommodates the profile with an anchoring segment of the tubular. This coupling takes place with fasteners through selectively aligned openings in each of the device and the segment. More specifically, the openings in the anchoring segment differ in number from that of the orienting device so as to prevent a tailored resolution for alignment between the profile and the window.
Claims20
An orienting interface for installation at a junction of a multilateral well, the interface comprising:
- an anchoring segment above a lateral window of a tubular, the anchoring segment including a plurality of first openings of a given number about a circumference of the anchoring segment at a same longitudinal location along the anchoring segment;
- an orienting device coupled to the anchoring segment with a feature aligned with the window of the tubular, the device including a plurality of second openings of a different number than the given number about a circumference of the orienting device at a same longitudinal location along the orienting device;
- and
- a plurality of fasteners for securing the orienting device to the anchoring segment through selectively aligned first and second openings to facilitate the alignment of the feature with the window.
A multilateral completions assembly comprising:
- a main bore casing through a well and having a window exposed to a lateral bore;
- a tubular assembly including a junction window aligned with the window of the casing, the tubular assembly including an orienting interface comprising:
- an anchoring segment above the junction window with a plurality of first openings of a given number about a circumference of the anchoring segment at a same longitudinal location along the anchoring segment;
- an orienting device coupled to the anchoring segment with a feature aligned with the junction window, the device including a plurality of second openings of a different number than the given number about a circumference of the orienting device at a same longitudinal location along the orienting device;
- and
- a plurality of fasteners for securing the orienting device to the anchoring segment through selectively aligned first and second openings to facilitate the alignment of the feature with the junction window.
A method of aligning a profile of an orienting device with a window in a tubular for installation at a junction of a multilateral well, the method comprising:
- providing an anchoring segment of the tubular with a plurality of first openings of a given number about a circumference of the anchoring segment at a same longitudinal location along the anchoring segment;
- placing the orienting device at the anchoring segment with a plurality of second openings of a number different than the given number about a circumference of the orienting device at a same longitudinal location along the orienting device;
- aligning the profile of the orienting device to the window;
- and
- securing fasteners through selectively aligned first and second openings.
Dependencies are inferred from the claim text.