US 12,305,498 B2
Downhole fluid separator in a multilateral well
Michael Linley Fripp, Singapore (SG); Zac Arackakudiyil Suresh, Dhahran (SA); and Muhammad Arra'uf Abdul Shukor, Dhahran (SA)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Feb. 19, 2024, as Appl. No. 18/581,202.
Claims priority of provisional application 63/582,158, filed on Sep. 12, 2023.
Prior Publication US 2025/0084748 A1, Mar. 13, 2025
Int. Cl. E21B 43/38 (2006.01); E21B 43/12 (2006.01); E21B 43/14 (2006.01)
CPC E21B 43/385 (2013.01) [E21B 43/128 (2013.01); E21B 43/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multilateral well system comprising:
a fluid separator to be positioned at a junction between a main bore and at least one lateral well of a multilateral well, wherein the fluid separator is configured to receive a formation fluid from a subsurface formation surrounding the main bore, wherein the fluid separator is configured to separate the formation fluid into production fluid and nonproduction fluid;
a pump to be positioned at the junction and configured to pump the nonproduction fluid to the at least one lateral well for injection of the nonproduction fluid into a subsurface formation surrounding the at least one lateral well;
a first flow channel configured to be a conduit for delivery of the production fluid to the surface of the multilateral well; and
a second flow channel configured to deliver an injection of a surface fluid from the surface of the multilateral well into an injection zone downhole in the multilateral well.