Quartet Downhole Reservoir Testing System | SLB

Quartet

Downhole reservoir testing system

Isolate, control, measure, and sample your reservoir—wirelessly and in a single trip


The Quartet downhole reservoir testing system enabled by Muzic wireless telemetry lets you directly interact with the four integrated tools, modify test design based on downhole events, and validate real-time data while you test, so you can be certain that your objectives have been met before the test is over.
Quartet Downhole Reservoir Testing System

Four leading downhole tools in one advanced string for single-trip testing efficiency

75%
Shorter
90%
Less Nitrogen
60%
Fewer Connections
50%
Fewer Seals
35%
Lower Operating Pressure
Quartet Downhole Reservoir Testing System at downhole and surface

Downhole string technology—Simplified

The Quartet system is short but powerful, providing numerous advantages over conventional testing strings:

  • bidirectional wireless communication enhances tool command and pressure data verification.
  • lower operating pressure and less nitrogen increase operational safety.
  • shorter string combines four tools while eliminating drill collars and slip joints and requiring fewer seals and connections to provide more efficient handling for more cost-effective downhole testing

Isolate
The CERTIS high-integrity reservoir test isolation system combines many features of a conventional retrievable packer with those of a permanent production packer, including a built-in floating seal assembly that eliminates the need for drill collars and slip joints. No string manipulation is required for setting—just apply annulus pressure to activate the hydraulic setting mechanism. At the end of the test, a straight pull releases the packer and then reopens the bypass to eliminate swabbing when coming out of the well.
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Control
The IRDV intelligent remote dual valve combines a tester valve and a circulating valve that can be cycled independently or in sequence for efficient, nitrogen-free multicycle operations. Both valves can be operated with a single command that is immune to downhole pressure and temperature and easily applied with low-intensity annular pulses or with Muzic telemetry for bidirectional communication and verification.
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Measure
With 100% ceramic-based electronics and proprietary long-life batteries, Signature quartz gauges acquire high-quality pressure data for the entire test duration. Muzic telemetry delivers real-time wireless readout of downhole measurements.
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Sample
SCAR inline independent reservoir fluid sampling captures representative fluid samples from deep within the reservoir. Collection directly in the flow stream eliminates contamination caused by dead volumes. Independent, redundant sample capture is controlled via Muzic wireless telemetry.
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Quartet
Downhole reservoir testing system

Muzic Wireless Telemetry

The industry’s fastest, most advanced system for achieving real-time bidirectional communication between surface and downhole.

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