Tech Report Dual Packer Opens Geothermal Source at 11,000 psi
Successful stress test proves geothermal feasibility by fracturing a formation at 11,000 psi (~6,400 differential pressure).
Downhole Test Tools
Optimize the test string to meet your test objectives
Test string components that bring certainty
Selecting the right equipment for your downhole test string is the key to efficiently meeting your test objectives and, ultimately, accurately characterizing your reservoir.
You’ll be able to design an optimal test string with our downhole test tools, equipment, and expertise for reservoir testing success in any operating environment.
Downhole Test Tool Offerings
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Slip Joints
Accommodate any changes in testing string lengthAdapt to changes in string length caused by temperature and pressure during drillstem testing.
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Circulating and Reversing Valves
Flow control systemsCirculate and reverse circulate with a suite of multicycle and single-shot valves.
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Downhole Tester Valves
Open and shut case for reservoir testing certaintyControl downhole flow and shut-in with a variety of tester valves to fit your test objectives.
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Downhole Safety Valves
Reliable well shut-in for drillstem testing and shoot-and-pull tubing-conveyed perforatingShut in the well with pumpthrough flapper or single-ball safety valves.
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Pressure Test and Fill-Up Valves
Pressure testing filled or dry pipe and tubingFill and test tubing while running in hole.
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Hydraulic Jars and Safety Joints
Quick, effective response for stuck toolsShake stuck strings loose or quickly release from the packer.
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Reservoir Testing Packers
Effective sealing to isolate fluids for better test resultsSet and retrieve packers easily with systems capable of withstanding high flow rates, temperatures, and pressures during testing and perforating.
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uHPHT Single-Shot Reservoir Testing Systems
Simple, rugged, reliable test stringsReliably perform ultrahigh-temperature, ultrahigh-pressure reservoir tests.
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Surface-Controlled Downhole Test Tools
Fail-safe closure in an emergencyEnhance safety during testing operations with a surface-operated hydraulic safety valve.
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Slimhole DST String
Reservoir testing in slim holesEnable downhole reservoir testing in small-casing wells down to 4 1/2-in casing.
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