US 12,037,874 B1
Sleeve for multi-stage wellbore stimulation
Ahmed Mohamed, Al Khobar (SA); and Ibrahim El Mallawany, Al-Khobar (SA)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 25, 2023, as Appl. No. 18/323,609.
Int. Cl. E21B 34/14 (2006.01); E21B 43/16 (2006.01); E21B 43/25 (2006.01)
CPC E21B 34/14 (2013.01) [E21B 43/16 (2013.01); E21B 43/25 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An assembly for incorporation into a completion string and to be positioned in a wellbore, the assembly comprising:
a tubular housing having a bore therethrough and at least one stimulation port therein to communicate fluid from the bore to outside the tubular housing; and
a single sleeve comprising a first baffle configured to receive a first object and a second baffle configured to receive a second object, the single sleeve configured to be axially movable in the tubular housing to position both the first baffle and the second baffle to at least three different positions relative to the tubular housing,
wherein the single sleeve is initially in a first closed position, wherein the single sleeve is configured to axially move from the first closed position to an open position in response to the first baffle receiving the first object therein, wherein the at least one stimulation port is open in the open position, and
wherein the single sleeve is configured to axially move from the open position to a second closed position in response to the second baffle receiving the second object received therein, wherein the second object is larger than the first object, and wherein the at least one stimulation port is closed in the second closed position.