RU98102598A - METHOD FOR MEASURING THE NUMBER OF WATER PUMPED BY CENTRIFUGAL ELECTRIC PUMPS OF WATER IN OIL LAYERS FOR THEIR PURPOSE OF THEIR REGULATION - Google Patents

METHOD FOR MEASURING THE NUMBER OF WATER PUMPED BY CENTRIFUGAL ELECTRIC PUMPS OF WATER IN OIL LAYERS FOR THEIR PURPOSE OF THEIR REGULATION

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Publication number
RU98102598A
RU98102598A RU98102598/28A RU98102598A RU98102598A RU 98102598 A RU98102598 A RU 98102598A RU 98102598/28 A RU98102598/28 A RU 98102598/28A RU 98102598 A RU98102598 A RU 98102598A RU 98102598 A RU98102598 A RU 98102598A
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RU
Russia
Prior art keywords
pump
flow rate
pressure
power
measuring
Prior art date
Application number
RU98102598/28A
Other languages
Russian (ru)
Other versions
RU2176732C2 (en
Inventor
В.О. Кричке
А.О. Громан
В.В. Кричке
Original Assignee
Самарская государственная архитектурно-строительная академия
Filing date
Publication date
Application filed by Самарская государственная архитектурно-строительная академия filed Critical Самарская государственная архитектурно-строительная академия
Priority to RU98102598A priority Critical patent/RU2176732C2/en
Priority claimed from RU98102598A external-priority patent/RU2176732C2/en
Publication of RU98102598A publication Critical patent/RU98102598A/en
Application granted granted Critical
Publication of RU2176732C2 publication Critical patent/RU2176732C2/en

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Claims (1)

Способ измерения количества заканчиваемой воды центробежным электронасосом в нефтяные пласты с целью их регулирования, включающий действительные рабочие характеристики насосной установки и электродвигателя, измерение перепада давления на насосе и мощности, действующей на валу насоса, измерение перепадов давления на диафрагмах, находящихся на трубопроводах, идущих к нагнетательным скважинам, отличающийся тем, что для повышения точности и упрощения процессов измерения количества закачиваемой центробежными электронасосами воды в нефтяные пласты, на каждом трубопроводе, идущем к скважине, измеряют с помощью установленных на них однотипных диафрагм перепад давления и вычисляют условный расход по каждой нагнетательной скважине путем извлечения корня квадратного из перепада давления и по действительным рабочим характеристикам насоса во всем диапазоне производительности вычисляют расходный коэффициент путем вычитания из результата деления мощности на валу насоса на развиваемое им давление при данной производительности результата деления мощности на валу насоса на создаваемое им давление при нулевой производительности, взятого в начале рабочей характеристики, и строят зависимость расходного коэффициента от производительности - расходную характеристику, измеряют активную мощность, потребляемую электродвигателем привода насоса из сети, измеряют давления на приеме и выкиде насоса, определяют мощность, действующую на валу насоса, путем умножения измеренной мощности на соответствующий КПД, взятый из характеристики электродвигателя в зависимости от действующего рабочего тока, и умножают на эксплуатационный коэффициент полезного действия насосной установки, определяют перепад давления на насосе путем вычитания действующего давления на выкиде насоса, давления, действующего на приеме насоса с учетом его знака, находят расходный коэффициент путем вычитания из результата деления найденного значения мощности на валу насоса на перепад давления на нем в текущий момент, значение результата деления мощности на валу насоса на перепад давления на нем при нулевой подаче в начале рабочей характеристики и по найденному значению расходного коэффициента по расходной характеристике находят объемный расход, вычисляют поправочный расходный коэффициент по каждой нагнетательной скважине, для чего суммируют полученные значения условных расходов по скважинам путем деления общего расхода на сумму условных расходов и определяют расход по каждой нагнетательной скважине путем умножения условных расходов на поправочный расходный коэффициент.A method for measuring the amount of water being completed by a centrifugal electric pump in oil reservoirs with the aim of regulating them, including the actual operating characteristics of the pumping unit and electric motor, measuring the pressure drop across the pump and the power acting on the pump shaft, measuring pressure drops across the diaphragms located on the pipelines to the discharge pipes wells, characterized in that to increase the accuracy and simplify the processes of measuring the amount of water pumped by centrifugal electric pumps in drawing strata, on each pipeline going to the well, the differential pressure is measured using the same diaphragms installed on them and the conditional flow rate for each injection well is calculated by extracting the square root of the differential pressure and the flow coefficient is calculated from the actual pump performance over the entire production range by subtracting from the result of dividing the power on the pump shaft by the pressure developed by it at a given performance the result of dividing the power on the pump shaft n and the pressure created by it at zero productivity, taken at the beginning of the operating characteristic, and they build the dependence of the flow coefficient on productivity - the flow characteristic, measure the active power consumed by the pump drive motor from the network, measure the pressure at the pump inlet and outlet, determine the power acting on the shaft pump, by multiplying the measured power by the corresponding efficiency, taken from the characteristics of the electric motor depending on the operating current, and multiply by the estimated efficiency of the pump installation, determine the pressure drop across the pump by subtracting the effective pressure on the pump outflow, the pressure acting on the pump intake taking into account its sign, find the expense coefficient by subtracting the result of dividing the found power value on the pump shaft by the pressure drop across it at the moment, the value of the result of dividing the power on the pump shaft by the pressure drop on it at zero flow at the beginning of the operating characteristic and by the found value of the flow rate of the coefficient for the flow rate characteristic, find the volumetric flow rate, calculate the correctional flow rate for each injection well, for which the obtained values of the conditional flow rates for the wells are summarized by dividing the total flow rate by the sum of the conditional costs and determine the flow rate for each injection well by multiplying the conditional costs by the correction flow rate.
RU98102598A 1998-02-16 1998-02-16 Process measuring amount of water pumped by centrifugal electric pump into oil pools RU2176732C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU98102598A RU2176732C2 (en) 1998-02-16 1998-02-16 Process measuring amount of water pumped by centrifugal electric pump into oil pools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU98102598A RU2176732C2 (en) 1998-02-16 1998-02-16 Process measuring amount of water pumped by centrifugal electric pump into oil pools

Publications (2)

Publication Number Publication Date
RU98102598A true RU98102598A (en) 1999-11-27
RU2176732C2 RU2176732C2 (en) 2001-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU98102598A RU2176732C2 (en) 1998-02-16 1998-02-16 Process measuring amount of water pumped by centrifugal electric pump into oil pools

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1866610T3 (en) * 2005-02-23 2013-02-28 Micro Motion Inc Single input, multiple output flow meter
CN111322058B (en) * 2018-12-14 2023-05-26 中国石油天然气股份有限公司 Method and device for determining working condition of oil pumping well based on electric parameter curve

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