US 12,000,236 B2
Cement mixer and multiple purpose pumper (CMMP) for land rig
Jacques Orban, Katy, TX (US); Shunfeng Zheng, Katy, TX (US); Bartley Patton, Sugar Land, TX (US); and Eric Erickson, Sugar Land, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed on Jun. 27, 2022, as Appl. No. 17/809,185.
Application 17/809,185 is a continuation of application No. 15/456,050, filed on Mar. 10, 2017, granted, now 11,371,314.
Prior Publication US 2022/0325601 A1, Oct. 13, 2022
Int. Cl. E21B 33/13 (2006.01); B28C 7/04 (2006.01); B28C 9/00 (2006.01)
CPC E21B 33/13 (2013.01) [B28C 7/0418 (2013.01); B28C 9/004 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A pump assembly comprising:
a first line for delivering a first fluid;
a second line for delivering a second fluid, wherein the first line is coupled to the second line;
a first pump;
a second pump;
a first suction line coupled to the first line and the first pump for delivering the first fluid to the first pump;
a second suction line coupled to the second line and the second pump for delivering the first fluid and the second fluid to the second pump;
a third line coupled to the first line and the second suction line coupled to the second pump, the third line for delivering the first fluid to the second suction line coupled to the second pump from the first line;
a third suction line coupled to the first pump for delivering the first fluid and the second fluid to the first pump;
a fourth line coupled to the second line, the third line, and the third suction line coupled to the first pump, the fourth line for delivering the first fluid from the third line to the third suction line and for delivering the second fluid from the second line to the third suction line;
a first discharge line coupled to the first pump for delivering the first fluid from the first pump at a first pressure; and
a second discharge line coupled to the first pump for delivering the second fluid from the first pump at a second pressure, wherein the first discharge line and the second discharge line are isolated from each other; and
a third discharge line coupled to the second pump for delivering the first fluid and the first pressure and the second fluid at the second pressure from the second pump.