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APPLICATIONS ■ Production well testing

 ■ Production and fiscal allocation

on land, platform, and subsea wells

 ■ Production trending

 ■ Production optimization

 ■ Reservoir management

 ■ Artificial lift system optimization

 ■ Oil, water, and gas measurements

for any given gas volume fraction

BENEFITS ■ Quicker, more efficient well testing,

saving response time and costs with

same hardware for multiphase and

wet gas measurements

 ■ Lower field development costs

 ■ Safer installation and operation

 ■ Better flow rate accuracy enabled

by fluid characterization services

FEATURES ■

Well-known track record around theworld in different operating conditions

 ■ Small, lightweight, and simple

 to operate and maintain

■ Remote real-time operation

and data acquisition

 ■ Repeatable, highly accurate

measurements

 ■ Exceptional dynamic response

 ■ No separation and no flowing

calibration required

 ■ Optional sampling capabilities

 ■ Flow measurements in slug, foam,

and emulsion environments

 ■ Common high-pressure-rating hardware

device for both oil and gas wells

Vx* multiphase well testing technology combines an instrumented venturi with a dual-energy

fraction meter. This combination measures the total mass flow rate and the fractions of gas, oil,

and water, which in turn determine the oil, water, and gas flow rates. Vx technology functions

without the need for separation or an upstream mixing device, which minimizes the size and

weight of the equipment. The technology has no moving parts and is essentially maintenance-free.

PhaseWatcher* fixed multiphase well production monitoring equipment uses Vx technology to

continuously measure flow rates in wells exhibiting one-, two-, or three-phase flow for production

monitoring on land, platform, and subsea wells. PhaseWatcher equipment with Vx technology

operates equally well in both oil and gas wells, making it possible to test dry gas, condensate, and

oil wells with a single meter. Because there is no need for separators, this significantly reduces

space, load, and maintenance requirements in offshore applications and decreases the footprint

in land-based applications. The meter enables safer, more efficient installations while reducing

field development costs.

A superior dynamic response enables PhaseWatcher equipment to take accurate and repeatable

measurements in less time than required for flow stabilization. These measurements enable

continuous diagnosis of production anomalies for fine-tuning of artificial lift systems and well

performance. Additionally, the meter is not affected by complex flow regimes such as slug flow,

so a higher frequency of well testing is both feasible and cost-effective.

The equipment can interface securely with the Internet to allow monitoring of and remote decision

making for well and field operations anywhere in the world. Because minimal operational input

is needed after the initial setup, data quality is assured online in real time. PhaseWatcher

equipment is ideal for satellite, unmanned, and subsea locations.

Regulatory bodies such as the US Minerals Management Service, the UK Department of Trade

and Industry, and the Norwegian Petroleum Directorate have recognized Vx technology by

approving applications of PhaseWatcher equipment for fiscal allocation of production. This

recognition has prompted industry organizations such as the American Petroleum Institute,

 the International Organization for Standardization, and the Norwegian Society for Oil and Gas

Measurement to rewrite production well testing and allocation standards.

PhaseWatcher equipment in 88-mm, 52-mm, and 29-mm multiphase meters with Vx technology.

PhaseWatcherPermanent multiphase well production monitoring equipment with Vx technology

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*Mark of Schlumberger

Other company, product, and service names

are the properties of their respective owners.

Copyright © 2014 Schlumberger. All rights reserved. 11-TS-0122

PhaseWatcher

www.slb.com/PhaseWatcher

Specifications

29 mm 52 mm 88 mm

Well applications Oil, condensate, and gas wells Oil, condensate, and gas wells Oil, condensate, and gas wells

Operating modes Oil mode and gas mode Oil mode and gas mode Oil mode and gas mode

Mechanical Specifications

Service H2S (wetted parts) H2S (wetted parts) H2S (wetted parts)Max. working pressure, psi [mPa] 5,000 [34]

(optional, 6,500 [45])5,000 [34](optional, 6,500 [45])

5,000 [34](optional, 6,500 [45])

Temperature rating, degF [degC] –4 to 302 [–20 to 150] –4 to 302 [–20 to 150] –4 to 302 [–20 to 150]

Ambient working temperature, degF [degC] –4 to 185 [–20 to 85] –4 to 185 [–20 to 85] –4 to 185 [–20 to 85]

Ambient storage temperature, degF [degC] –40 to 185 [–40 to 85] –40 to 185 [–40 to 85] –40 to 185 [–40 to 85]

Dimensions (W × D × H), ft [m] 2.24 × 1.57 × 1.53[0.684 × 0.479 × 0.467]

2.18 × 2.25 × 2.08[0.663 × 0.686 × 0.633]

2.43 × 2.51 × 3.05[0.742 × 0.766 × 0.930]

Weight, lbm [kg] 463 [210] 595 [270] 877 [398]

Connections, in [mm] 3.0 [76]† 5.0 [127]† 8.0 [203]†

Power consumption 25 W continuous 25 W continuous 25 W continuous

Certification for explosion-proof equipment CENELEC EEx‡ d IIB T4 or NorthAmerican Flame Proof Class 1,Division 1, Groups C and D T4

CENELEC EEx‡ d IIB T4 or NorthAmerican Flame Proof Class 1,Division 1, Groups C and D T4

CENELEC EEx‡ d IIB T4 or NorthAmerican Flame Proof Class 1,Division 1, Groups C and D T4

Ingress protection (IP) IP 66 (US equivalent to NEMA 4X) IP 66 (US equivalent to NEMA 4X) IP 66 (US equivalent to NEMA 4X)

Communication protocols RS485 MODBUS RTU (standard), withoptional RS422 MODBUS RTU or TCP/IPover Ethernet or MODBUS

RS485 MODBUS RTU (standard), withoptional RS422 MODBUS RTU or TCP/IPover Ethernet or MODBUS

RS485 MODBUS RTU (standard), withoptional RS422 MODBUS RTU or TCP/IPover Ethernet or MODBUS

Common Metrological Specifications

Max. liquid viscosity range, cP [Pa.s] 2,000 [2] at line conditions 2,000 [2] at line conditions 2,000 [2] at line conditions

Repeatability Better than 1% (total massrate at line conditions)

Better than 1% (total massrate at line conditions)

Better than 1% (total massrate at line conditions)

Resolution Better than 0.1% (total massrate at line conditions)

Better than 0.1% (total massrate at line conditions)

Better than 0.1% (total massrate at line conditions)

Oil Mode Specifications

Water/liquid ratio 0 to 100% 0 to 100% 0 to 100%

Gas volume fraction 0 to 98% 0 to 98% 0 to 98%

Max. liquid flow capacity at low gasflow and line conditions, bbl/d [m3 /d]§

12,900 [2,051] 39,500 [6,280] 112,000 [17,807]

Gas Mode Specifications

Water/liquid ratio 0 to 100% 0 to 100% 0 to 100%

Liquid volume fraction 0 to 10% 0 to 10% 0 to 10%

Maximum gas flow capacityat zero liquid flow rate MMcf/d [m3 /d]††

36.3 [1.0 × 106] 116 [3.2 × 106] 323 [9.1 × 106]

† GRAYLOC® hub‡ European-approved explosion-proof equipment§ Maximum liquid capacity at gas/liquid ratio = 0, liquid density = 53 lbm/ft 3 [850 kg/m3], pressure = 300 psi [2.1 mPa], water/liquid ratio = 0,

venturi differential pressure = 72.5 psi [0.5 mPa], and maximum total fluid velocity of 0.3 Mach†† Maximum gas capacity at zero liquid flow rate, gas density = 70 lbm/ft 3 [1,121 kg/m3], pressure = 5,000 psi [34 mPa],

venturi differential pressure of 72.5 psi [0.5 mPa], and maximum total fluid velocity of 0.3 Mach