SU825872A1

SU825872A1 - Luquid-metering device

Info

Publication number: SU825872A1
Application number: SU782652970A
Authority: SU
Inventors: Олег Федорович Лезов; Петр Владимирович Мишин; Игорь Константинович Постников
Original assignee: Lezov Oleg F; Mishin Petr V; Postnikov Igor K
Priority date: 1978-07-24
Filing date: 1978-07-24
Publication date: 1981-04-30

Description

Изобретение относится к горной промышленности, в частности.к устройствам для дозирования реагентов, и может быть использовано для дозирования при глубиннонасосной эксплуатации сквцжин нефтенасосных месторождений.The invention relates to the mining industry, in particular, to devices for dispensing reagents, and can be used for dispensing with deep pump operation of oil pumping wells.

Известен жидкостный дозатор,содержащий емкость с реагентом и кла- . пан для регулировки положения реагента в емкости И·Known liquid dispenser containing a container with a reagent and a valve. pan for adjusting the position of the reagent in the tank And

Недостатком известного устройства является ненадежность дозирования при изменении давления пластовой жидкости в забойной зоне.A disadvantage of the known device is the unreliability of dosing when the pressure of the reservoir fluid in the bottomhole zone changes.

Известен жидкостный дозатор, включающий корпус с подводящим и выходные каналами, размещенную в нем пробку с приводом, в полости которой установлен свободноплавающий поршень и емкость для реагента.Known liquid dispenser, comprising a housing with inlet and outlet channels, a plug with a drive placed in it, in the cavity of which a free-floating piston and a container for the reagent are installed.

Недостатком этого устройства является низкая эффективность дозирования в результате информационного расхода реагента относительно количества поступающей продукции скважины, а также то, что привод пробки дозатора не автоматизирован.The disadvantage of this device is the low dosing efficiency as a result of the information flow of the reagent relative to the amount of incoming well production, as well as the fact that the metering tube drive is not automated.

Цель изобретения - повышение эффективности дозирования за счет автоматического регулирования расхода реагента в зависимости от количества поступающей продукции скважины.The purpose of the invention is to increase the efficiency of dosing due to automatic control of reagent consumption depending on the amount of incoming well products.

WW

Поставленная цель достигается тем, что полость реагента гидравлически связана с нагнетательной полостью глубинного насоса, а привод _>5 пробки выполнен в виде турбинки, установленной под всасывающим клапаном глубинного насоса, причем корпус имеет окна для сообщения полости под турбинкой со скважиной, а также 20 тем, что пробка имеет запорный клапан, установленный в виде плунжера и кинематически связанного с ним запора, причем плунжер со стороны затвора гидравлически связан с подводящим каналом, а с противоположной стороны с внешней средой.This goal is achieved in that the reagent cavity is hydraulically connected to the injection cavity of the submersible pump, and the drive _{> 5} plugs is made in the form of a turbine mounted under the suction valve of the submersible pump, the housing has windows for communicating the cavity under the turbine with the well, and also 20 that the plug has a shut-off valve installed in the form of a plunger and a kinematically associated lock, and the plunger on the valve side is hydraulically connected to the inlet channel, and on the opposite side to the external environment.

На чертеже изображен забойный жидкостный дозатор, продольный разрез. ‘ ₍ The drawing shows a downhole liquid dispenser, a longitudinal section. ' ₍

Забойный жидкостный дозатор, преимущественно для Глубиннонасосной эксплуатации скважин, включает корпус 1, емкость 2 для реагента, гидравлически связанную через трубку 3 с нагнетательной частью 4 глубинного насоса 5, подводящего б и выходного 7 каналов корпуса, сообщающимися с полостью 8 пробки 9., с приводом - турбинкой 10 и свободноплавающим в полости пробки поршнем 11. Турбинка 10 расположена под всасы- вающим клапаном 12 насоса'5. Полость под турбинкой сообщена со скважиной при помощи окон 13 корпуса 1.'The downhole liquid dispenser, mainly for deep pump well operation, includes a housing 1, a reagent tank 2, hydraulically connected through a pipe 3 to a discharge part 4 of a deep pump 5, a supply b and an output 7 of the housing channels communicating with a cavity 8 of the plug 9., with a drive - a turbine 10 and a piston 11 freely floating in the tube cavity. The turbine 10 is located under the suction valve 12 of the pump'5. The cavity under the impeller communicated with the well using the windows 13 of the housing 1. '

В подводящем канале 6 установлен запорный клапан 14, выполненный в виде плунжера 15 и кинематически связанного с ним затвора 16, причем плунжер со стороны затвора гидравлически связан с подводящим каналом 6, а с противоположной стороны через канал 17 с внешней средой.A shut-off valve 14 is installed in the inlet channel 6, made in the form of a plunger 15 and a shutter 16 kinematically connected with it, the plunger on the side of the shutter being hydraulically connected to the inlet channel 6, and on the opposite side through the channel 17 with the external environment.

Жидкостный дозатор работает следующим образом.The liquid dispenser operates as follows.

При работе глубинного насоса 5 в нагнетательной части 4 его создается давление, обеспечивающее выход пластовой жидкости на поверхность. Это давление через трубку. 3 воздействует на расположенный в емкости 2 реагент, вытесняя последний при открытом затворе 16 в подводящий канал 6. Как только пробка 9 под воздействием проходящей пластовой жидкости попадает на лопатки турбинки 10, последняя поворачивается да совмещения полости со свободно плавающим поршнем 11 с подводящим 6 и выходным 7 каналами, реагент через канал 6 под превышающим пластовое давлением заполняет полость .8,перемещающая поршень 11 до упора ^не показан) и, соответственно, вытесняя заполнявший полость 8 реагент в выходной канал.When the deep pump 5 is operating in the discharge part 4, a pressure is created which ensures the formation fluid exit to the surface. This pressure is through the tube. 3 acts on the reagent located in the tank 2, displacing the latter with the shutter 16 open into the supply channel 6. As soon as the plug 9 under the influence of a passing formation fluid enters the blades of the turbine 10, the latter rotates and the cavity coincides with the freely floating piston 11 with the supply 6 and output 7 channels, the reagent through the channel 6 under the reservoir pressure fills the cavity .8, moving the piston 11 to the stop (not shown) and, accordingly, displacing the reagent filling the cavity 8 into the outlet channel.

и далее в поступающую через окна 13 пластовую жидкость. При дальнейшем повороте пробки 9 на 180^цикл повторяется. Пропорциональное дозирование может обеспечиваться как выбором шага турбинки 10, так и ограничением хода поршня 11.and further into the reservoir fluid entering through the windows 13. With a further turn of the plug 9 by 180 ^, the cycle repeats. Proportional dosing can be provided as a choice of the pitch of the turbine 10, and limiting the stroke of the piston 11.

Когда в процессе поступления реагента из емкости 2 в подводящий канал 6 давление его на площадь плунжера 15 превысит противодействующие усилия пружины плунжера 15 и давление пластовой жидкости на забое, 5 плунжер 15 перемещается и перестает воздействовать на затвор 16, который перекрыва'ет подводящий канал 6, прекращая таким образом прямой доступ реагента из емкости 2 к пробке 9.When the pressure of the reagent from the tank 2 into the inlet channel 6, its pressure on the area of the plunger 15 exceeds the opposing forces of the spring of the plunger 15 and the pressure of the reservoir fluid at the bottom, 5 the plunger 15 moves and ceases to act on the shutter 16, which overlaps the inlet channel 6, thus terminating direct access of the reagent from the tank 2 to the plug 9.

Работа по обеспечению перемещения свободно плавающего поршня 11 в это iвремя обеспечивается за счет усилия поджатия пружины плунжера 15, обеспечивающей необходимое избыточное, по сравнению с пластовым, давление реагента в полости 8. По мере расходования реагента из подводящего канала 6 плунжер 15 под действием совместного усилия давления пласто2Q вой жидкости и пружины плунжера 15 перемещается, вступает в контакт с затвором 16 и открывает его.Цикл повторяется.The work to ensure the movement of the freely floating piston 11 at this time is ensured by the force of the spring of the plunger 15, which provides the necessary excess, compared with the reservoir pressure of the reagent in the cavity 8. As the reagent is expended from the supply channel 6, the plunger 15 under the combined pressure formation fluid and spring of the plunger 15 moves, makes contact with the valve 16 and opens it. The cycle repeats.

В связи с тем что переходник со25 единяет нагнетательную часть насоса с емкостью, дозатор может работать в скважинах разной глубины с емкостью любого требуемого объема, а установка турбинки на пробке обеспечи₃₀ вает автоматическое дозирование реагента в любой, наперед заданной пропорции. Наличие установленного в подводящем канале запорного клапана с гидравлическим управлением уменьшает перепад давлений в дозирующей .полости, что, соответственно, уменьшает утечки реагента через зазоры в движущихся частях и увеличивает срок службы дозатора из-за уменьшения действия сил инерции и трения.Due to the fact that the adapter combines the pumping part of the pump with the tank, the dispenser can work in wells of different depths with a tank of any desired volume, and the installation of a turbine on the tube provides ₃₀ automatic dispensing of the reagent in any predetermined proportion. The presence of a shut-off valve installed in the inlet channel with hydraulic control reduces the pressure drop in the dosing cavity, which, accordingly, reduces reagent leakage through gaps in moving parts and increases the life of the dispenser due to a decrease in the action of inertia and friction.

Claims

The invention relates to the mining industry, in particular, to devices for dispensing reagents and can be used for dosing in deep-pumping exploitation of squads of oil-pumping deposits. A liquid metering device is known, which contains a reagent tank and a valve for adjusting the position of the reagent in the tank. A disadvantage of the known device is the unreliability of dosing the pressure variation of the formation fluid in the bottomhole zone. A liquid metering device is known, comprising a housing with inlet and outlet channels, a stopper with a drive in it, in the cavity of which a free-floating piston and a reagent tank are installed. The disadvantage of this device is the low efficiency of dosing as a result of the information consumption of the reagent relative to the amount of incoming production from the well, and the fact that the drive of the dosing plug is not automated. The purpose of the invention is to increase the metering efficiency by automatically controlling the flow of reagent depending on the amount of incoming well production. The goal is achieved by the fact that the reagent cavity is hydraulically connected to the injection cavity of the submersible pump, and the plug drive is made in the form of a impeller installed under the suction valve of the submersible pump, the housing having windows for communication of the cavity under the turbine with the well, and also the plug It has a shut-off valve installed in the form of a plunger and a constipation associated with it kinematically, the plunger from the gate side being hydraulically connected to the inlet channel, and from the opposite side to the external environment. The drawing shows a bottomhole fluid dispenser, a longitudinal section. . Downhole fluid dispenser, mainly for downhole pumping, V1 springs case 1, tank 2 for reagent, hydraulically connected via tube 3 to the injection part 4 of the deep pump 5, inlet b and outlet 7 channels of the case, communicating with cavity 8 of tube 9,. with an impeller pump 10 and a piston 11 fully free-floating in the plug 11. The impeller 10 is located under the suction valve 12 of the pump 5. The cavity under the impeller is communicated with the well by means of the windows 13 of the housing 1. In the inlet channel 6 a lock is installed second valve 14 is configured as a plunger 15 and kinematically associated with it shutter 16 do the hair plunger from the valve fluidly coupled to conductive supply channel 6 and the opposite side through a duct 17 to the outside. Liquid dispenser works as follows. During operation of the deep pump 5 in the injection part 4 it creates -. c pressure providing the formation fluid to the surface. This is the pressure through the tube. 3 acts on the reagent located in the tank 2, which displaces the latter when the shutter 16 is opened into the inlet channel 6. As soon as the plug 9 is exposed to the blades of the impeller 10 under the influence of the passing reservoir fluid, the latter turns to match the cavity with the freely floating piston 11 6 and outlet 7 channels, the reagent fills the cavity through the channel 6 with a pressure exceeding the reservoir pressure. 8 moving the piston 11 to the stop is not shown and, accordingly, displaces the recess of cavity 8 into the output channel. 7 and further into the formation fluid entering through the windows 13. Upon further rotation of the plug 9 by 180, the cycle is repeated. Proportional dosage can be provided both by spacing the pitch of the impeller 10 and by restricting the stroke of the piston 11. When in the process of the flow of reagent from the tank 2 into the inlet channel 6 its pressure on the area of the plunger 15 exceeds the counter force of the spring of the plunger 15 and the pressure of the formation fluid at the bottom , the plunger 15 moves and ceases to act on the shutter 16, which closes the supply channel 6, thus stopping the direct access of the reagent from the tank 2 to the stopper 9. Work to ensure the movement of free floating the piston 1 1 is at this time ensured by the force of pressing the spring of the plunger 15, which provides the necessary excess pressure compared to the reservoir pressure in the cavity 8. As the reagent from the supply channel 6 is consumed, the plunger 15 under the effect of the joint pressure of the gshast fluid and the spring the plunger 15 moves, comes in contact with the shutter 16 and opens it. The cycle repeats. Since the adapter connects the injection part of the pump to the tank, the metering device can work in wells of different depths with the capacity of any desired volume, and the installation of the impeller on the plug provides automatic dosing of the reagent to any predetermined proportion. The presence of a hydraulically controlled shut-off valve installed in the supply channel reduces the pressure drop in the metering cavity, which, respectively, reduces the leakage of the reagent through the gaps in the moving parts and increases the service life of the dispenser due to the reduced action of inertia and friction forces. The invention of the Liquid dispenser, mainly for deep-well operation, includes a housing with inlet and outlet channels, a plug with an actuator placed in it, in the cavity of which a free-floating piston and a reagent are installed that are different in order to increase the dosage efficiency. due to automatic control of reagent consumption depending on the amount of incoming well production, the reagent cavity is hydraulically connected to the injection cavity of the deep pump and,