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US 12,392,223 B2Granted
Whipstock with detachable whipface and sealing capabilities for multilateral systems
AssigneeHalliburton Energy Services, Inc.
InventorsFranklin Rodriguez, Yoann Santin
Life of this patent
Estimating the term…
Abstract
Provided is a whipstock, a well system, and a method. The whipstock, in at least one aspect, includes a whipface having an angled casing string exit surface, a sub detachably coupled to the whipface, and a bottom hole assembly fixedly coupled to the sub, the bottom hole assembly having one or more seals along an inner surface thereof.
Claims32
A whipstock, comprising:
- a whipface having an angled casing string exit surface;
- an upper sub fixedly coupled to the whipface;
- a lower sub detachably coupled to the whipface and upper sub via one or more shear features;
- and
- a bottom hole assembly fixedly coupled to the lower sub, the bottom hole assembly having one or more seals along an inner surface thereof, wherein the bottom hole assembly includes an alignment key located along an outer surface thereof.
2 more elements
A well system, comprising:
- a main wellbore extending through one or more subterranean formations;
- a casing string located within the main wellbore;
- and
- a whipstock located in the casing string proximate a junction where a lateral wellbore is to exit the main wellbore, the whipstock including:
- a whipface having an angled casing string exit surface;
- an upper sub fixedly coupled to the whipface;
- a lower sub detachably coupled to the whipface and upper sub via one or more shear features;
- and
- a bottom hole assembly fixedly coupled to the lower sub, the bottom hole assembly having one or more seals along an inner surface thereof, wherein the bottom hole assembly includes an alignment key located along an outer surface thereof.
6 more elements
A method, comprising:
- forming a main wellbore through one or more subterranean formations;
- positioning a casing string within the main wellbore;
- and
- locating a whipstock in the casing string proximate a junction where a lateral wellbore is to exit the main wellbore, the whipstock including:
- a whipface having an angled casing string exit surface;
- an upper sub fixedly coupled to the whipface;
- a lower sub detachably coupled to the whipface and upper sub via one or more shear features;
- and
- a bottom hole assembly fixedly coupled to the lower sub, the bottom hole assembly having one or more seals along an inner surface thereof, wherein the bottom hole assembly includes an alignment key located along an outer surface thereof.
6 more elements
A whipstock, comprising:
- a whipface having an angled casing string exit surface;
- an upper sub fixedly coupled to the whipface;
- a lower sub detachably coupled to the whipface and upper sub via one or more shear features, wherein the upper sub includes a tubular that extends within the lower sub and at least a portion of the bottom hole assembly, and further including one or more debris collection devices located within the tubular;
- and
- a bottom hole assembly fixedly coupled to the lower sub, the bottom hole assembly having one or more seals along an inner surface thereof.
2 more elements
A whipstock, comprising:
- a whipface having an angled casing string exit surface;
- an upper sub fixedly coupled to the whipface;
- a lower sub detachably coupled to the whipface and upper sub via one or more shear features;
- a plurality of members and member profiles in the lower sub and upper sub, the members and member profiles configured to cooperate to rotationally fix the lower sub and the upper sub;
- and
- a bottom hole assembly fixedly coupled to the lower sub, the bottom hole assembly having one or more seals along an inner surface thereof.
3 more elements
Dependencies are inferred from the claim text.