US 12,005,407 B2
Chemical injection and mixing device
Mohamed Ahmed Soliman, Ras Tanura (SA); Samer Osamah Abduljabbar, Ras Tanura (SA); and Samusideen Adewale Salu, Ras Tanura (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 22, 2021, as Appl. No. 17/156,061.
Prior Publication US 2022/0234009 A1, Jul. 28, 2022
Int. Cl. B01F 25/312 (2022.01); B01F 25/316 (2022.01); E21B 21/06 (2006.01); E21B 37/06 (2006.01)
CPC B01F 25/316 (2022.01) [B01F 25/312 (2022.01); E21B 21/062 (2013.01); E21B 37/06 (2013.01); Y10T 137/87643 (2015.04)] 8 Claims
OG exemplary drawing
 
1. A mixer comprising:
a body;
a passage formed through the body;
an annular plenum circumscribing the passage and having an inner radius that is parallel with a sidewall of the passage and a frusto-conical cross section, the plenum in communication with a source of an injection chemical;
a port in the sidewall of the passage that is in communication with the plenum;
the passage having an end with an opening that is in communication with a primary fluid, the primary fluid being selectively combined with the injection chemical to create a combined fluid when a velocity of the primary fluid is at a threshold magnitude so that the combined fluid is mixed inside the mixer and becomes a mixed fluid having a designated homogeneity; and
a valve assembly in the passage that is moveable to a blocking configuration when the velocity is below the threshold magnitude and defines a barrier to flow of the primary fluid and injection chemical into the passage, and when the velocity is at least at the threshold magnitude the valve assembly being moveable to a flowing configuration and that permits a flow of the primary fluid and injection chemical into the passage.