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1. (WO2017035557) CONTROL SYSTEM

Pub. No.:    WO/2017/035557    International Application No.:    PCT/AU2015/050503
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 29 01:59:59 CEST 2015
IPC: G01F 9/00
F02M 37/04
B24B 49/00
E21B 43/12
E21C 37/12
E21B 43/26
Applicants: OLITEK PTY LTD
Inventors: OLIVER, James
PAECH, Simon Benjamin
Title: CONTROL SYSTEM
Abstract:
A control system for controlling operation of a fluid delivery system that includes at least a first pump (14) for delivering a first fluid and a second pump (24) for mixing a second fluid with the first fluid. The control system includes a controller (58), the controller including a first pump map for the first pump (14), the first pump map having a first pump flow rate mapped against one or more variables including a control output signal, the controller (58) including a second pump map for the second pump (24), the second pump map having a second pump flow rate mapped against one or more variables including a control output signal, the controller (58) determining the control output signal for the first pump (14) to obtain a desired flow rate from the first pump, the controller determining the control output signal for the second pump (24) to obtain a target flow rate and a target percentage of the second fluid relative to the first fluid or a target percentage of the second fluid relative to an overall fluid flow, the respective control output signals for the first pump (14) and the second pump(24) being determined using the first pump map and the second pump map, respectively.