Intelligent completion systems

Segmentation of a horizontal well and real-time management of production from each segment

Retrievable ICV system provides remote online control of production even in wells with 4 ½ liner or open hole

Shutting off high-water-cut segments with electrovalves controlled on-line from the office

Minimisation of water production and gas breakthrough

Increased oil production

Video review of
the system

On-line webinar: Intelligent well flow
control devices

Components

Shutting off high-water-cut segments with electrovalves controlled on-line from the office

Valve

As a unique feature, the cable is located within the valve body. The housing cannot damage the cable during installation in the horizontal open hole.

This is the only way to put the valve inside the 6'' open hole or 4.5" liner.

Valve specifications

Parameter
Inflow Channel
Through Channel

Flow rate range, bp
Accuracy

Maximum pressure, psi
Accuracy, psi

Maximum temperature, ⁰F
Accuracy, ⁰F

2.4'' Valve

0.6''
0.8''

1000
± 1.5%

5000
± 18.4

300
± 0.9

3.5'' Valve

0.8''
1.3''

1500
± 1.5%

10000
± 18.4

300
± 0.9

4.5'' Valve

1.3''
2''

3000
± 1.5%

15000
± 18.4

300
± 0.9

5.7'' Valve

2''
3''

6000
± 1.5%

15000
± 18.4

300
± 0.9

Valve type

Control panel

The control panel is used to control the system by opening and closing downhole valves to increase oil production.

Left: Control panel; Right: 114-mm valve and control panel

Expandable Casings

Expandable Casings contain expandable supports to prevent rubber seals from being squeezed into the casing annulus, which increases reliability and inhibits packer displacement.

Advantages

Reliable sealing of the production casing during operations when packers are under high differential pressures;

Easy removal without applying additional tension load;

Expandable Casing design proven by years of successful use

Cables and fittings

The cable powers the downhole tool and transfers its data to the surface recorder

Fitting

A pipe connector installed for branching, bending, pipe diameter changes and frequent assembly/disassembly of the pipeline. Fittings are also used for sealed cable entry and other purposes.

Downhole quartz pressure and temperature gauges

Each electric valve contains two pressure and temperature sensors

Details

Downhole vortex flowmeter

Flow metering of fluids with viscosities below 7 centipoises. Built-in pressure and temperature sensors. No moving parts.

Successful implementation cases

Our implementations of Intelligent Well
Completion Systems

Case Study 1. Two-section horizontal well

Intelligent completion allowed to determine the high-water-cut of Far Zone and isolated it by Electrovalve. The water rate production significantly dropped down up to 5 times which in a 1.5 times decreased the cost of oil price. The additional oil production has been 6000 tons for 3 years.

Case Study 2. Three sections completion in the open hole producers

Simultaneous production regulation of the three zones extended the oil production up to 2 years. Intelligent Completion system was pulled out the well in working condition after the maximum water-cut rate was reached. Endurance and reliability of smart systems even for downhole extreme conditions allowed to decrease CAPEX of completion of new wells.

Case study 3. Field Development – Injection Well

The one horizontal injection well with Intelligent Completion replaced the three vertical wells. Intelligent Completion system provided the full functional range of regulation of flow rate for three isolated zones for the Enhanced Oil Recovery operation with waterflooding. The replacement of Three wells to One Smart well decreased the CAPEX up to 1.5 times. Pressure and temperature sensors inserted in each valve allow hydrodynamic studies and reservoir parameters to be determined. Unique PT sensors in production wells monitor the influence of the injection well by pressure filtration waves for waterflooding regimes optimization

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Intelligent completion systems

Segmentation of a horizontal well and real-time management of production from each segment

Retrievable ICV system provides remote online control of production even in wells with 4 ½ liner or open hole

Video review of
the system

On-line webinar: Intelligent well flow
control devices

Components

Shutting off high-water-cut segments with electrovalves controlled on-line from the office

Valve