US 12,448,848 B2
Downhole tool including a packer assembly, a completion assembly, and a removably coupled whipstock assembly
Borisa Lajesic, Stavanger (NO); Lars Petter Larsen, Stavanger (NO); Morten Falnes, Stavanger (NO); and Vegard Dyrseth, Stavanger (NO)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 5, 2023, as Appl. No. 18/481,793.
Claims priority of provisional application 63/414,308, filed on Oct. 7, 2022.
Prior Publication US 2024/0117680 A1, Apr. 11, 2024
Int. Cl. E21B 7/06 (2006.01); E21B 23/06 (2006.01)
CPC E21B 7/061 (2013.01) [E21B 23/06 (2013.01)] 21 Claims
OG exemplary drawing
 
10. A method for forming a well system, comprising:
forming a main wellbore within a subterranean formation;
positioning a downhole tool within the main wellbore using a two-part drilling and running tool, the downhole tool including:
a whipstock assembly;
a packer assembly removably coupled to the whipstock assembly;
an anchor assembly coupled to the packer assembly, wherein the anchor assembly includes:
a latch collet including a collet body, the collet body having a collet body opening extending through a thickness (tcb) thereof and a plurality of collet fingers;
a mandrel positioned within the collet body, the mandrel having a mandrel slot therein; and
a bore sensor positioned within the collet body opening and the mandrel slot, the bore sensor configured remain in a radially extended state when the latch collet is in too large size casing and thereby prevent the collet body and the mandrel from sliding relative to one another and be pushed to a radially compressed state when the latch collet is in the correct size casing and thereby not prevent the collet body and the mandrel from sliding relative to one another; and
a completion assembly coupled to the anchor assembly;
setting the anchor assembly, setting the packer assembly, and releasing the two-part drilling and running tool from the downhole tool;
using the released two-part drilling and running tool to form a lateral wellbore off of the main wellbore;
pulling the two-part drilling and running tool out of the lateral wellbore, the two-part drilling and running tool engaging with the whipstock assembly and withdrawing the whipstock assembly out of the main wellbore; and
positioning a multilateral junction assembly at a junction between the main wellbore and the lateral wellbore without the use of a deflector assembly.