Downhole reservoir testing
Reliable, repeatable drillstem test data for informed characterization decisions
The information you need to understand the reservoir
Since performing the first drillstem test (DST) in 1926, we’ve performed downhole tests that help customers economically achieve their test objectives. When your goal is to unambiguously determine reservoir pressure, permeability, skin, and productivity, our downhole technologies reliably deliver the right answers.
Even in hostile well conditions, we’ll get you accurate downhole pressure measurements. Flexible tool designs deliver reservoir information from multiple zones on the same test, saving rig time and powering rapid updates for your reservoir models.
Formation Testing: The Early Days
Discover how, in 1926 near El Dorado, Arkansas, Edgar and Mordica Johnston performed the first commercial drillstem test (DST).
Read MoreDownhole Reservoir Testing Offerings
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Downhole Pressure Gauges
High-quality pressure measurement in all reservoir testing environmentsObtain precise pressure measurements in a wide range of environments with reliable downhole recorders.
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Quartet
Downhole reservoir testing systemMonitor and manage wellbore events as they happen, validate pressure data while you test, and ensure that you've met your test objectives before ending your test.
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Downhole Test Tools
Optimize the test string to meet your test objectivesAssemble an optimal downhole test string with a wide variety of tools and equipment designed to fit your test objectives in any operating environment.
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Quartet-HT
High-temperature downhole reservoir testing systemGet reservoir-representative fluid samples and high-resolution pressure measurements with multicycle flexibility in a single run and at ultrahigh temperatures.
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SenTREE 3
Subsea test treePerform well test and cleanup from any floating rig with a singular subsea safety solution.
