US 11,938,592 B2
High-pressure abrasive fluid injection using clear fluid pump
Earl H. Dearborn, Woodburn, KY (US); Thomas L. Dotson, Woodburn, KY (US); and John M. Piercy, Woodburn, KY (US)
Assigned to TD Tools, Inc., Woodburn, KY (US)
Filed by TD Tools, Inc., Woodburn, KY (US)
Filed on Sep. 3, 2020, as Appl. No. 17/011,284.
Claims priority of provisional application 62/899,057, filed on Sep. 11, 2019.
Prior Publication US 2021/0069863 A1, Mar. 11, 2021
Int. Cl. B24C 7/00 (2006.01); E21B 43/114 (2006.01); E21B 43/26 (2006.01)
CPC B24C 7/0023 (2013.01) [E21B 43/114 (2013.01); E21B 43/2607 (2020.05)] 19 Claims
OG exemplary drawing
 
1. A modular valve system, comprising:
a first valve block, comprising:
a block of material, the block comprising a fluid channel that extends from a first fluid inlet to a first fluid outlet; and
a valve seat attached to the fluid channel, wherein the valve seat is configured to prevent flow of fluid into the fluid channel when a valve poppet is pressed against the valve seat;
a second valve block comprising a second fluid inlet and a second fluid outlet;
first piping coupling the first fluid outlet to the second fluid outlet;
a third valve block comprising a third fluid inlet and a third fluid outlet;
a fourth valve block comprising a fourth fluid inlet and a fourth fluid outlet;
second piping coupled to the first fluid inlet and the third fluid inlet;
third piping coupled to the third fluid outlet and the fourth fluid outlet; and
fourth piping coupled to the fourth fluid inlet and the second fluid inlet.