US 11,655,687 B2
Modular additive cementing
Carl D. Lindahl, Dhahran (SA); and Bandar S. Malki, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on May 10, 2021, as Appl. No. 17/315,901.
Claims priority of provisional application 63/104,962, filed on Oct. 23, 2020.
Prior Publication US 2022/0127928 A1, Apr. 28, 2022
Int. Cl. E21B 33/16 (2006.01); E21B 33/14 (2006.01); E21B 34/06 (2006.01)
CPC E21B 33/165 (2020.05) [E21B 33/146 (2013.01); E21B 34/063 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for flowing and mixing cement within a subterranean formation, the apparatus comprising:
a housing configured to contain a cement additive, the housing comprising:
a first end;
a second end opposite the first end; and
a wall connecting the first end to the second end;
a first port disposed at the first end of the housing, the first port configured to couple to a cement retainer;
a second port disposed at the second end of the housing;
a pressure injection port disposed at the wall of the housing;
a flow control device selected from the group consisting of a rupture disc and a float valve, the flow control device disposed at the second end of the housing; and
a plurality of baffles disposed within the housing.