DST | TCP

Drill Stem Testing (DST) and Tubing Conveyed Perforating (TCP) solutions
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Drill Stem Testing (DST) and Tubing Conveyed Perforating (TCP) solutions

Drill Stem Testing (DST) and Tubing Conveyed Perforating (TCP) solutions

The accurate data we provide allows customers to plan the optimal exploitation of their reservoirs

The drill stem testing (DST) bottomhole assembly is designed around your test objectives and well parameters. Our focus is providing downhole systems, including perforating guns, with the functionality to effectively and safely perform the well test, while capturing quality data, such as bottom-hole pressures and temperatures during flow (drawdown) and shut-in (build up) periods and representative single-phase formation fluid samples.

  • Over 30 years of DST heritage
  • More than 2,000 successfully completed DST jobs
  • In more than 25 countries
  • For more than 65 clients including leading IOCs, NOCs and independents

Expro has been in the tubing conveyed perforating (TCP) business for over 35 years and provides industry leading gun systems with a full range of in-house designed firing heads, gun releases, vent subs and other associated equipment.

Brochures
Tubing Conveyed Perforating (TCP) Drill Stem Testing (DST) Extreme Pressure Series TCP Gun System
Datasheets
Annular pressure dual firing device Annulus operated reversing valve Annulus reference trap system Auto release firing device Automatic venting BigCat Packer HPHT Detonation interruption device Downhole safety valve EXACT™ tool Hydraulic jar Hydraulic actuated firing device Intelligent electronic trigger Multi reverse spot tool Mechanical firing device Metered Sleeve Pressure activated release tool Pressure actuated firing device Pyrotechnic delay firing device Pressure operated tester valve Safety impact firing device Safety joint and overshot Shot detection Self filling-tubing tester valve Slip joint Top fired dual firing device Vertical shock absorber
Technical papers
Deepwater testing, trials & triumphs
Case studies

DST tools withstand extreme-duration exposure

Expro’s DST equipment was left in the well for a total duration of over 14 months, being exposed to harsh downhole conditions of over 14,000psi and 270°F
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Safe, efficient and effective wellbore plug and abandonment operations

Expro tames “The Leopard”

HPHT well with underbalanced annulus successfully tested, onshore India

Creating confidence in the geology and injection storage simulation modelling allowing the Northern Lights Carbon Capture project to go ahead

Expro DST and TCP excels in world’s most active E&A offshore contract

Record breaking TCP performance offshore India

First TCP job in Argentina

TCP dynamic underbalance and vertical orientation to maximise production

First dual zone DST in India

Dynamic underbalanced TCP system avoids well stimulation

TCP ‘shoot and drop’ system used to complete an offshore production well

First EXACT™ tool deployment in UKCS

Collaborative cost-effective TCP solution enhances well productivity

High performing HPHT TCP services in Gulf of Mexico

Full DST and TCP services package to support local operator in Egypt

Innovation drives efficiency in rigless well abandonment in Southern North Sea

Modelling support avoids downhole equipment failure and costly fishing operations

Expro-designed dynamic underbalanced perforating improves production

Innovative perforating system for deepwater, high pressure, subsea wells

Lift clamp reduces time and improves safety in deploying record 5,000ft TCP gun length

Toe sliding sleeve solutions for HPHT wells eliminates intervention saving rig time

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