US 12,078,036 B2
Single trip wellbore completion system
Jeremie Poizat, Houston, TX (US); John Whitsitt, Houston, TX (US); Oguzhan Guven, Bellaire, TX (US); Michael Huh, Pearland, TX (US); and Nabil Batita, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 17/907,562
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Apr. 7, 2021, PCT No. PCT/US2021/026104
§ 371(c)(1), (2) Date Sep. 28, 2022,
PCT Pub. No. WO2021/207304, PCT Pub. Date Oct. 14, 2021.
Claims priority of provisional application 63/006,994, filed on Apr. 8, 2020.
Prior Publication US 2023/0147546 A1, May 11, 2023
Int. Cl. E21B 43/10 (2006.01); E21B 23/06 (2006.01); E21B 33/12 (2006.01); E21B 34/06 (2006.01); E21B 34/14 (2006.01)
CPC E21B 43/10 (2013.01) [E21B 23/06 (2013.01); E21B 33/1208 (2013.01); E21B 34/063 (2013.01); E21B 34/142 (2020.05); E21B 2200/04 (2020.05)] 23 Claims
OG exemplary drawing
 
1. A completion string deployed in a wellbore extending through a plurality of well zones, the 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 assembly and a first circulating assembly, each disposed uphole of the washdown shoe in the bottom-most well zone;
wherein the top well zone comprises a return valve assembly and a production packer,
wherein the top well zone further comprises a second sand control assembly; and a second circulating assembly, each of the second sand control assembly and the second circulating assembly being downhole of the production packer,
wherein the completion string further comprises:
an outer string spanning from the bottom-most well zone to the top well zone; and
an inner production string concentrically arranged within the outer string creating an inner-annulus between the outer string and the inner production string, wherein the inner-annulus is continuous from the washdown shoe to the return valve assembly, the inner production string comprising: a first production valve disposed between the first sand control assembly and the first circulating assembly in the bottom-most well zone; and a second production valve disposed between the second sand control assembly and the second circulating assembly in the top well zone.