Patent ID: 11927086
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 17:
18. A pump system for pumping an oilfield fluid from a well surface to a wellbore comprising:
one or more clean pumps, which pump a non-gel fluid having no proppant added thereto;
one or more dirty pumps, which pump a dirty stream, comprising a solid material disposed in a fluid carrier, as a proppant with a concentration of the proppant in the fluid carrier of about 2 to 12 pounds per gallon, wherein the dirty stream causes a useful life of the one or more dirty pumps to be shortened relative to a reduction in a useful life of the one or more clean pumps due to the non-gel fluid; and
a manifold coupled to the one or more clean pumps and to the one or more dirty pumps such that, in operation, the manifold receives the non-gel fluid downstream of the one or more clean pumps, the non-gel fluid received by the manifold is fluid discharged directly from the one or more clean pumps, and the non-gel fluid and the dirty steam are combined by the manifold and together form an oilfield to be transmitted from the well surface to the wellbore.