US 12,134,959 B2
Multi-trip wellbore completion system with a service string
Jeremie Poizat, Houston, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/995,611
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Apr. 14, 2021, PCT No. PCT/US2021/027205
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2021/211664, PCT Pub. Date Oct. 21, 2021.
Claims priority of provisional application 63/010,616, filed on Apr. 15, 2020.
Prior Publication US 2023/0228175 A1, Jul. 20, 2023
Int. Cl. E21B 43/14 (2006.01); E21B 17/18 (2006.01); E21B 33/12 (2006.01); E21B 34/06 (2006.01); E21B 43/04 (2006.01); E21B 43/08 (2006.01); E21B 43/12 (2006.01)
CPC E21B 43/14 (2013.01) [E21B 17/18 (2013.01); E21B 33/12 (2013.01); E21B 43/04 (2013.01); E21B 43/08 (2013.01); E21B 43/12 (2013.01); E21B 34/063 (2013.01); E21B 34/066 (2013.01); E21B 2200/06 (2020.05)] 12 Claims
OG exemplary drawing
 
1. A system deployed in a wellbore extending through a plurality of well zones, the system comprising:
an outer completion string comprising:
at least one isolation packer positioned between well zones of the plurality of well zones, the plurality of well zones comprising:
a bottom-most well zone and a top well zone;
a washdown shoe disposed in the bottom-most well zone;
a first sand control filter and a first gravel pack extension, each disposed uphole of the washdown shoe in the bottom-most well zone,
wherein in the top well zone, the outer completion string comprises a latch profile, a female inductive coupler, and a gravel pack packer,
wherein, in the top well zone, the outer completion string further comprises a second sand control filter and a second gravel pack extension,
each of the second sand control filter and the second gravel pack extension being disposed downhole of the gravel pack packer; and
an inner service string configured to connect within the outer completion string, the inner service string comprising:
a workstring;
a set and release that connects to the latch profile of the outer completion string;
a power source;
a return valve configured to control fluid communication between an upper-annulus and an inner-annulus of the inner service string;
a circulating assembly for each well zone of the plurality of well zones;
an inner concentric string that is concentrically arranged within the workstring creating the inner-annulus between the workstring and the inner concentric string, wherein the inner-annulus is continuous from the circulating assembly for the bottom-most well zone to the return valve, wherein the circulating assembly of the inner service string comprises a reverse valve configured to control flow from the inner-annulus to the inner concentric string, a treat valve configured to control flow from the inner concentric string to an outer annulus outside the outer completion string to at least one of the plurality of well zones, and an isolation valve configured to control flow inside the inner concentric string or to isolate the inner service string below the isolation valve;
a port closure sleeve collet; and
an upper completion comprising a male inductive coupler that is configured to connect with the female inductive coupler of the outer completion string to communicate power from the power source.