CA2633204A1 - Method of calculating pump flow rates and an automated pump control system - Google Patents

Method of calculating pump flow rates and an automated pump control system Download PDF

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Publication number
CA2633204A1
CA2633204A1 CA 2633204 CA2633204A CA2633204A1 CA 2633204 A1 CA2633204 A1 CA 2633204A1 CA 2633204 CA2633204 CA 2633204 CA 2633204 A CA2633204 A CA 2633204A CA 2633204 A1 CA2633204 A1 CA 2633204A1
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CA
Canada
Prior art keywords
pressure
pump
flow
delta
change
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2633204
Other languages
French (fr)
Other versions
CA2633204C (en
Inventor
Cameron Zarowny
Wayne Muir
Wendell Young
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noralta Technologies Inc
Original Assignee
Noralta Controls Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Noralta Controls Ltd filed Critical Noralta Controls Ltd
Priority to CA 2633204 priority Critical patent/CA2633204C/en
Publication of CA2633204A1 publication Critical patent/CA2633204A1/en
Application granted granted Critical
Publication of CA2633204C publication Critical patent/CA2633204C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0688—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by combined action on throttling means and flow sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
    • G01F1/88—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with differential-pressure measurement to determine the volume flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/24—Application for metering throughflow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/81—Sensor, e.g. electronic sensor for control or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/21—Pressure difference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/80—Diagnostics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • Y10T137/0329—Mixing of plural fluids of diverse characteristics or conditions
    • Y10T137/0352—Controlled by pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

A method of determining a flow rate of a pump involves determining a volume capacity for a flow line carrying produced fluids from the pump, determining a starting pressure for the flow line and setting an arbitrary target pressure for the purpose of testing.
The test is initiated by preventing flow in the flow line while continuing to operate the pump and monitoring pressure in the flow line to determine a time interval required to reach the target pressure. The method then involves performing calculations to determine flow rate using the volume capacity, the starting pressure, the change in pressure over the time interval required to reach the target pressure. The flow rate is equivalent to .DELTA.V
divided by a change in time .DELTA.T. The method is preferably used as part of a manual or automated pump control strategy to keep the pump operating within flow rate ranges that provide optimum pump efficiency.

Claims (5)

1. A method of determining a flow rate of a pump, comprising:
determining a volume capacity for a flow line carrying produced fluids from the pump;
determining a starting pressure for the flow line;
setting an arbitrary target pressure for the purpose of testing;
preventing flow in the flow line while continuing to operate the pump;
monitoring pressure in the flow line to determine a time interval required to reach the target pressure;
performing calculations to determine flow rate using the volume capacity, the starting pressure, the change in pressure over the time interval required to reach the target pressure, such calculations being based upon the fact that a change in pressure equals a change in volume .DELTA.P = .DELTA.V in a closed system and flow rate is equivalent to .DELTA.V divided by a change in time .DELTA.T.
2. The method of Claim 1, including a step of using the derived flow rate calculations as part of a pump control strategy in which flow rates are kept within a predetermined operating range to optimize pump efficiency.
3. The method of Claim 1, including a step of preparing a pressure profile of pressure rise over time that is used as a diagnostic tool to determine whether the pump is experiencing inflow problems.
4. An automated oil well pump control system, comprising:
an oil well having a pump;
a flow line carrying produced fluids from the oil well having a known volume capacity;
means of controlling the flow of produced fluids through the flow line;
a pressure sensor on the flow line between the pump and the control valve;
a controller controlling the speed of the pump, controlling the opening and closing of the control valve and receiving pressure readings from the pressure sensor, the controller having a control strategy in which the controller determines a starting pressure, closes the control valve and monitors a resulting rise in pressure in the flow line to an arbitrary target pressure over a time interval;
the controller performing calculations to determine flow rate using the volume capacity, the starting pressure, the change in pressure over the time interval required to reach the target pressure, such calculations being based upon the fact that a change in pressure equals a change in volume .DELTA.P = .DELTA.V in a closed system and flow rate is equivalent to .DELTA.V
divided by a change in time .DELTA.T;
the controller using the flow rate calculations to control pump speed within a predetermined operating range that optimizes pump efficiency.
5. The automated oil well pump control system of Claim 4, wherein the means of controlling the flow of produced fluids is an automated control valve.
CA 2633204 2007-06-01 2008-06-02 Method of calculating pump flow rates and an automated pump control system Active CA2633204C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2633204 CA2633204C (en) 2007-06-01 2008-06-02 Method of calculating pump flow rates and an automated pump control system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,591,395 2007-06-01
CA 2591395 CA2591395A1 (en) 2007-06-01 2007-06-01 Method of automated oil well pump control and an automated well pump control system
CA 2633204 CA2633204C (en) 2007-06-01 2008-06-02 Method of calculating pump flow rates and an automated pump control system

Publications (2)

Publication Number Publication Date
CA2633204A1 true CA2633204A1 (en) 2008-12-01
CA2633204C CA2633204C (en) 2013-01-08

Family

ID=40089154

Family Applications (2)

Application Number Title Priority Date Filing Date
CA 2591395 Abandoned CA2591395A1 (en) 2007-06-01 2007-06-01 Method of automated oil well pump control and an automated well pump control system
CA 2633204 Active CA2633204C (en) 2007-06-01 2008-06-02 Method of calculating pump flow rates and an automated pump control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA 2591395 Abandoned CA2591395A1 (en) 2007-06-01 2007-06-01 Method of automated oil well pump control and an automated well pump control system

Country Status (2)

Country Link
US (1) US7957841B2 (en)
CA (2) CA2591395A1 (en)

Cited By (1)

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EP3882433A1 (en) * 2020-03-18 2021-09-22 Lutz Pumpen GmbH Pumping mechanism with integrated flow meter

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US9192720B2 (en) * 2008-10-22 2015-11-24 Debiotech S.A. MEMS fluid pump with integrated pressure sensor for dysfunction detection
US8439651B2 (en) * 2009-07-14 2013-05-14 Briggs & Stratton Corporation Garden hose booster water pump system
US8485796B2 (en) 2009-03-25 2013-07-16 Briggs & Stratton Corporation Booster water spraying system
US8700220B2 (en) * 2009-09-08 2014-04-15 Wixxi Technologies, Llc Methods and apparatuses for optimizing wells
US8874388B2 (en) * 2009-09-15 2014-10-28 On Site Gas Systems, Inc. Method and system for measuring a rate of flow of an output
US8544496B2 (en) 2010-05-25 2013-10-01 Briggs & Stratton Corporation Garden hose booster system
USD665652S1 (en) 2010-06-23 2012-08-21 Briggs & Stratton Corporation Garden hose container
CN101995277B (en) * 2010-10-26 2012-02-08 中国航天科技集团公司第五研究院第五一○研究所 Device for measuring ultralow gas flow
US8880362B2 (en) * 2011-02-03 2014-11-04 Epic Solutions, Inc. System and method for monitoring paint flow in pavement marking applications
US9051927B2 (en) 2012-02-17 2015-06-09 Briggs & Stratton Corporation Water pump having two operating conditions
US8814531B2 (en) 2012-08-02 2014-08-26 Briggs & Stratton Corporation Pressure washers including jet pumps
CN103308125B (en) * 2013-06-07 2016-01-20 中国人民解放军国防科学技术大学 A kind of Flows stable control method
US10130962B2 (en) 2013-10-10 2018-11-20 Briggs & Stratton Corporation Wirelessly controlled trigger start and chemical tank change-over for pressure washers
AU2015358511B2 (en) 2014-12-05 2018-11-29 Briggs & Stratton, Llc Pressure washers including jet pumps
WO2016094530A1 (en) 2014-12-09 2016-06-16 Schlumberger Canada Limited Electric submersible pump event detection
CN104775800A (en) * 2015-03-27 2015-07-15 承德石油高等专科学校 Valve type viscose oil pumping and oil production system
CN107978079B (en) * 2016-10-25 2021-07-13 富士电机株式会社 Beverage supply device
CN106761602B (en) * 2016-12-28 2020-02-14 中国石油天然气股份有限公司 Method and device for determining production conditions of oil well
CA2994678C (en) 2017-02-11 2020-02-11 Jeffrey Arnold Wilkens Thermoplastic paint marking system and method
US11828029B2 (en) 2020-09-23 2023-11-28 Epic Solutions, Inc. System for monitoring application of roadway marking tape
CN117662081A (en) * 2022-08-11 2024-03-08 斯伦贝谢技术有限公司 Methods and systems for reducing liquid accumulation in gas wells using autonomous choke control

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US7055600B2 (en) * 2001-04-24 2006-06-06 Shell Oil Company In situ thermal recovery from a relatively permeable formation with controlled production rate
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882433A1 (en) * 2020-03-18 2021-09-22 Lutz Pumpen GmbH Pumping mechanism with integrated flow meter
EP3882433B1 (en) 2020-03-18 2024-12-18 Lutz Pumpen GmbH Pumping mechanism with integrated flow meter

Also Published As

Publication number Publication date
CA2591395A1 (en) 2008-12-01
CA2633204C (en) 2013-01-08
US20080300727A1 (en) 2008-12-04
US7957841B2 (en) 2011-06-07

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