RU181704U1 - Electro-hydraulic flow control valve - Google Patents

Electro-hydraulic flow control valve Download PDF

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Publication number
RU181704U1
RU181704U1 RU2018113357U RU2018113357U RU181704U1 RU 181704 U1 RU181704 U1 RU 181704U1 RU 2018113357 U RU2018113357 U RU 2018113357U RU 2018113357 U RU2018113357 U RU 2018113357U RU 181704 U1 RU181704 U1 RU 181704U1
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RU
Russia
Prior art keywords
channel
electro
control valve
flow
secondary channel
Prior art date
Application number
RU2018113357U
Other languages
Russian (ru)
Inventor
Рамиль Назифович Бахтизин
Рустэм Адипович Исмаков
Екатерина Всеволодовна Денисова
Алина Ильдаровна Шакирова
Сергей Павлович Сидоров
Original Assignee
Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет"
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Application filed by Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" filed Critical Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет"
Priority to RU2018113357U priority Critical patent/RU181704U1/en
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Publication of RU181704U1 publication Critical patent/RU181704U1/en

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells
    • E21B34/08Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00Control of flow
    • G05D7/01Control of flow without auxiliary power
    • G05D7/0126Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs

Abstract

The utility model relates to the field of hydrocarbon production and can be used for well operation, in particular, for aligning the profile of fluid inflow along the length of a horizontal well. formation into the carrier pipe with the possibility of restricting the flow of unwanted liquid or gas through the valve and the possibility of adjustment erepada pressure in the channel network mouth skvazhiny.Elektrogidravlichesky inflow control valve includes a housing comprising a primary channel with the actuator overlapping channel and a secondary channel with a flow restrictor, to create the required differential pressure. The actuator is driven by a piston, the position of which is determined using a displacement sensor; in the secondary channel, a network of flow restrictors is made, made in the form of throttle packets and nozzles; a differential pressure sensor is installed, while the secondary channel is limited by a damper and an electromagnetic valve actuated from the surface of the well. In addition, the electro-hydraulic inflow control valve contains a buffer tank for liquid displaced by the damper.

Description

The utility model relates to the field of hydrocarbon production and can be used to operate wells, in particular, to align the profile of fluid inflow along the length of a horizontal well.

A fluid flow control device is known according to US20170234106A1. The device comprises a housing configured as an inlet for liquid from a reservoir to a production pipe in an underground oil well, the housing comprising a primary flow channel for primary fluid and an inlet for receiving fluids from the reservoir and an outlet for discharging fluids into the production pipe , a second flow channel located in the housing, and a valve mechanism between the inlet and the outlet. In the secondary channel there are flow restrictors, the first is a porous element, and the second is a hole. As the fluid passes through the porous element, the fluid experiences a pressure drop in accordance with Darcy's law, proportional to the viscosity of the fluid. When passing through a flow restrictor in the form of an orifice, the fluid experiences a pressure drop that is proportional to the density, diaphragm coefficient, and squared velocity of the fluid. Therefore, the pressure between the porous element and the hole will change if the properties (viscosity or density) of the fluid change. This difference between the pressure values is used to perform work, for example, actuating the actuator, which in turn can move the piston, housing and / or valve.

The disadvantage of this device is that the device is autonomous, i.e. it does not have the ability to control the position of the actuator from the wellhead, in addition, the use of a porous element to limit the flow, which may become clogged.

The objective of the utility model is to create a new device - an electro-hydraulic inflow control valve with the following technical result: ensuring the flow of fluid from the production formation into the carrier pipe with the possibility of limiting the flow of unwanted fluid or gas through the valve and the ability to adjust the pressure drop in the channel network from the wellhead.

The problem is solved in that in the electro-hydraulic valve for inflow control, comprising a housing containing a main channel containing an actuator that overlaps the channel and a secondary channel with flow restrictors, to create the required pressure drop, according to a utility model, the main channel contains an actuator driven in action by a piston, the position of which is determined using a displacement sensor; a network of flow restrictors is made in the secondary channel, a differential pressure sensor is installed, while the secondary channel is limited by a shutter and an electromagnetic valve actuated from the surface of the well. Moreover, the network of flow limiters is made in the form of throttle packets and nozzles. The electro-hydraulic inflow control valve contains a buffer tank for liquid displaced by the valve.

In FIG. 1 is a diagram of a valve device; FIG. 2 presents a throttle package.

The electro-hydraulic inflow control valve comprises a housing 1, which includes a main channel 2, a secondary channel 3 of the valve. In the secondary channel, flow restrictors are installed in the form of throttle packets 4, 5, and nozzles 6, 7, 8, 9, and a differential pressure sensor 10. The main channel contains an actuator 11, driven by a piston 12, the position of which is determined using the displacement sensor 13. The secondary channel 3 is limited by a shutter 14 and an electromagnetic valve 15, actuated from the surface of the well. The excess displaced in the area of the shutter 14, fall into the buffer tank 16.

Electro-hydraulic valve control of the flow works as follows. The electro-hydraulic inflow control valve as part of other devices between which swellable packers are installed on the casing string is lowered into the well so that the packers divide the wellbore into sections that differ in different oil inflows. After temporary exposure, the packer increases in volume and overlaps the selected intervals. The fluid flow Q passes through the main channel 2, falling from the reservoir into the production pipe. In the secondary channel 3, when the liquid passes through the throttle packets 4 and 5, a pressure drop occurs, which depends on the density of the liquid and temperature.

The circuit diagram of the throttle package is shown in FIG. 2, the pressure drop can be adjusted by selecting the number of plates 17 in the bag and the diameter of the hole 18. It turns out that the pressure P3 will change if the properties of the flowing medium change, when a more viscous liquid, such as oil, flows, the valve is in the open state, with a lower viscosity, such as gas or water, the pressure P3 increases, this change is detected by the sensor 10. Depending on this difference, the position of the actuator 11 changes on the sensor 10. Changing the position of the valve allows a shutter 14 actuated by an automatic control system from the wellhead. In the event of a change in the fluid detected by the sensor 10, the shutter 14 closes or opens. When the shutter 14 moves to the closed state, the pressure P5 above the piston 12 increases, thereby moving the piston 12 downward by an amount X. The position sensor 13 can be controlled by the displacement sensor 13 on the piston 12. Thus, knowing the pressure drop and temperature, it is possible to indirectly determine what medium flows through the valve oil, gas or water.

Claims (3)

1. Electro-hydraulic valve for controlling the flow, including a housing containing a main channel containing an actuator, an overlapping channel, and a secondary channel with flow restrictors, to create the required pressure difference, characterized in that the main channel contains an actuator driven by a piston, position which is determined using a displacement sensor; a network of flow restrictors is made in the secondary channel, a differential pressure sensor is installed, while the secondary channel is limited by a shutter and an electromagnetic valve actuated from the surface of the well.
2. The electro-hydraulic inflow control valve according to claim 1, characterized in that the network of flow restrictors is made in the form of throttle packets and nozzles.
3. The electro-hydraulic inflow control valve according to claim 1, characterized in that it comprises a buffer tank for liquid displaced by the valve.
RU2018113357U 2018-04-12 2018-04-12 Electro-hydraulic flow control valve RU181704U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2018113357U RU181704U1 (en) 2018-04-12 2018-04-12 Electro-hydraulic flow control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2018113357U RU181704U1 (en) 2018-04-12 2018-04-12 Electro-hydraulic flow control valve

Publications (1)

Publication Number Publication Date
RU181704U1 true RU181704U1 (en) 2018-07-26

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942619A (en) * 1957-01-25 1960-06-28 Tecalemit Ltd Flow control valves
RU2099505C1 (en) * 1995-02-21 1997-12-20 Владимир Федорович Францев Subsurface safety valve
EA200501525A1 (en) * 2003-03-28 2006-02-24 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Surface-controlled flow valve and filter
EA200870408A1 (en) * 2006-04-03 2009-04-28 Эксонмобил Апстрим Рисерч Компани Wells method and device for prevention of sand removal and adjustment of the inflow during the bottom operations
RU2575371C2 (en) * 2010-02-04 2016-02-20 Халлибертон Энерджи Сервисез, Инк. Device for fluid flow control, device for flow control and channel-dependent system for resistance control
US20170234106A1 (en) * 2012-03-21 2017-08-17 Inflow Control AS Flow Control Device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942619A (en) * 1957-01-25 1960-06-28 Tecalemit Ltd Flow control valves
RU2099505C1 (en) * 1995-02-21 1997-12-20 Владимир Федорович Францев Subsurface safety valve
EA200501525A1 (en) * 2003-03-28 2006-02-24 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Surface-controlled flow valve and filter
EA200870408A1 (en) * 2006-04-03 2009-04-28 Эксонмобил Апстрим Рисерч Компани Wells method and device for prevention of sand removal and adjustment of the inflow during the bottom operations
RU2575371C2 (en) * 2010-02-04 2016-02-20 Халлибертон Энерджи Сервисез, Инк. Device for fluid flow control, device for flow control and channel-dependent system for resistance control
US20170234106A1 (en) * 2012-03-21 2017-08-17 Inflow Control AS Flow Control Device

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Legal Events

Date Code Title Description
MM9K Utility model has become invalid (non-payment of fees)

Effective date: 20180730