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 four leading downhole 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.

Advantages over conventional string configurations

  • Four downhole tools combined in one string for single-trip efficiency
  • Simplified string design technology for a shorter string
  • No drill collars or slip joints with fewer seals and connections for more efficient handling
  • Lower operating pressure and less nitrogen for increased operational safety

Isolate with CERTIS 

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.

Control with IRDV 

The IRDV intelligent remote dual valve combines a tester valve and a circulating valve that can be cycled independently or in sequence for efficient multicycle operations. The IRDV dual valve as part of the Quartet system enabled by Muzic telemetry allows bidirectional communication for tool command and verification.

Measure with Signature

With 100% ceramic-based electronics and proprietary battery design, Signature quartz gauges acquire high-quality pressure data for the entire test duration. As part of the Quartet system enabled by Muzic telemetry, Signature gauges provide wireless readout of downhole pressure measurements in real time.

Sample with SCAR 

SCAR inline independent reservoir fluid sampling delivers representative fluid samples from deep within the reservoir. Samples are collected directly in the flow stream to eliminate contamination caused by dead volumes. SCAR sampling as part of the Quartet system enabled by Muzic telemetry allows independent, redundant sample capture via wireless commands.

Customizable real-time support

Critical test data obtained using the Quartet system enabled by Muzic telemetry is transmitted via a robust wireless network and is integrated with the Schlumberger real-time testing service that best helps you meet your test objectives.

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Quartet Downhole Reservoir Testing System
Enabling Signature quartz gauges with Muzic wireless telemetry allowed Petrobras to transmit real-time pressure and temperature data for offsite interpretation, optimizing operations and saving rig time and associated costs. Read case study