US 12,203,338 B2
Method and apparatus for cementing and cleaning a reservoir liner
Hans Martin Leistad, Tananger (NO); Donald R. Girdler, Austin, TX (US); and Leif Arne Kvarme, Tananger (NO)
Assigned to CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed by ConocoPhillips Company, Houston, TX (US)
Filed on Nov. 2, 2020, as Appl. No. 17/087,283.
Application 17/087,283 is a continuation of application No. 16/195,541, filed on Nov. 19, 2018, granted, now 10,851,618.
Claims priority of provisional application 62/591,043, filed on Nov. 27, 2017.
Prior Publication US 2021/0047897 A1, Feb. 18, 2021
Int. Cl. E21B 37/00 (2006.01); C09K 8/42 (2006.01); E21B 33/14 (2006.01); E21B 34/06 (2006.01); E21B 34/10 (2006.01); E21B 37/10 (2006.01); E21B 43/10 (2006.01)
CPC E21B 33/14 (2013.01) [E21B 34/063 (2013.01); E21B 34/10 (2013.01); E21B 37/00 (2013.01); E21B 37/10 (2013.01); E21B 43/10 (2013.01); C09K 8/42 (2013.01)] 6 Claims
OG exemplary drawing
 
1. Apparatus for cementing and cleaning a reservoir liner, the apparatus comprising:
(a) a drillpipe having an assembly fitted to a distal end thereof, the assembly comprising a reservoir liner hanger and a surface-actuatable valve adapted, on actuation, to seal the interior of the reservoir liner completely from the interior of a casing in the wellbore above the reservoir liner, wherein the reservoir liner includes a pressure release valve; and
(b) a cleanout string, no part of which is designed to pass down the reservoir liner, wherein the cleanout string comprises tubing that can be racked in stands, a stand consisting of two or more sections of pipe pre-made up to each-other.