HYDRAULIC INTERVAL CONTROL VALVE (ICV)

Model

Torrent-SW-HICV

The downhole multi-stage flow control device is a self-balancing, surface-controlled, and downhole-installed device.

When it is necessary to open the oil production layer where the downhole multi-stage flow control device is located, surface pressurization is applied. Hydraulic oil enters the opening pipeline of the downhole multi-stage flow control device, controlling the switch gate to move upward, thereby opening the external flow holes on the lower shaft and the throttle valve sleeve nozzle.

When it is necessary to close the oil production layer, surface pressurization is applied again. Hydraulic oil enters the closing pipeline interface of the downhole multi-stage flow control device, causing the switch gate to move downward, thereby closing the external flow holes on the lower shaft and the throttle valve sleeve nozzle.

The intelligent flow control system consists of three main hydraulic control pipelines and P branch hydraulic control pipelines. The main hydraulic control pipelines are connected to the hydraulic digital decoder inlet. By adjusting the pressurization sequence and pressure values in the main hydraulic control pipelines, different hydraulic channels are activated, separately opening the outlets of the P branch hydraulic control pipelines.

The ICV (Interval Control Valve) is selectively controlled by connecting it to the P branch hydraulic control pipelines.

‍

Feature

A 5-1/2 inch casing well can have up to 5 layers, while a 7-inch casing well can have up to 10 layers.
Fewer downhole control pipelines (only 3 lines), more controllable layers, and easier operation during construction.
High selectivity, allowing for sequential injection in different layers or simultaneous injection across the entire wellbore with a single tubing string.
Enables independent production and injection in multiple layers and sections, with no interference between layers and sections, ensuring balanced reservoir utilization.
Automatic data acquisition system, providing comprehensive real-time monitoring of temperature, pressure, and flow rate, facilitating accurate reservoir production analysis and evaluation.
In the late production stage with high water cut, the water-producing layer sliding sleeve can be closed to reduce water cut. If interlayer conflicts arise during later production, shift adjustment can be performed to control nozzle resistance, suppress high water-cut layers, and achieve balanced production across all layers.
High-pressure tubing system, with a pressure resistance of 80 MPa and temperature resistance up to 150°C, suitable for thin, high-pressure reservoirs such as beach-bar sand formations.
Downhole flow meters provide real-time monitoring of pressure, temperature, and flow rate for each layer.
ICV (Interval Control Valve) features 10 adjustable nozzle levels (oil nozzles), supporting a single-layer production range of 30-1000 m³/d.

‍

Application

ICV Specifications

Model	ICV-4.65”	ICV-5.83”	ICV-7.1”
Connection Thread Type	2-7/8" EUE B*P	3-1/2" EUE B*P	3-1/2" EUE B*P
Minimum Inner Diameter (mm)	58	72	76
Maximum Outer Diameter (mm)	118	148	180
Length (mm)	1600	1800	1800
Material	9Cr1Mo / 13CrL80	9Cr1Mo / 13CrL80	9Cr1Mo / 13CrL80
Opening Activation Pressure (PSI)	700–1500	700–1500	700–1500
Closing Activation Pressure (PSI)	700–1500	700–1500	700–1500
Sealing Component Temperature Rating (°C)	≤200	≤200	≤200
Overall Pressure Resistance (PSI)	5000	5000	5000
Piston Discharge Volume (mL)	131①	185①	285①
Maximum Control Line Pressure (PSI)	7500	7500	7500
Adjustment Levels	Single open/close or multi-stage (20 levels)	Single open/close or multi-stage (20 levels)	Single open/close or multi-stage (20 levels)
Control Line Slots	4 slots, each can accommodate 2 × 1/4" control lines	4 slots, each can accommodate 2 × 1/4" control lines	4 slots, each can accommodate 2 × 1/4" control lines