Oil Well Logging Sealed Radioactive Sources

Radioactive Sources

QSA Global, Inc. has over 60 years of experience developing and manufacturing thousands of sealed radioactive sources for major oil well logging (OWL) companies worldwide, including Schlumberger®, Halliburton®, Weatherford®, Baker Hughes®, and numerous independent tool manufacturers.

Our OWL sources are rugged and designed for downhole use, resulting in fast, precise measurements in Wireline and Measurement While Drilling (MWD or LWD) applications.

IsotopeRadiation TypeMeasurementActivity Range
Am-241 / BeNeutron SourcePorosity3-20 Ci
(111-740 GBq)
Cs-137High Energy Gamma SourceDensityUp to 2.5 Ci
(93 GBq)

Experts in Custom OWL Source Design

When you need a custom design for your bull plug or pressure vessel, QSA Global, Inc.’s technical experts are here to guide you through your unique production needs. For example, we can provide recommendations on superior materials that are better suited for high temperature, high pressure, and corrosive environments.

QSA Global, Inc. also provides technical guidance on capsule dimensions, interface, assembly, and specific handling features and tailors them to your preferences and needs

Cesium-137 (Cs-137) for Oil Well Logging.

QSA Global, Inc. has manufactured thousands of sealed Cesium-137 (Cs-137) density sources for notable oilfield service companies worldwide for oil well logging (OWL) including Schlumberger®, Halliburton®, Weatherford®, and Baker Hughes® as well as numerous independent tool manufacturers for over 60 years.

Achieve fast, accurate density measurements in Wireline, Measurement While Drilling (MWD), and Logging While Drilling (LWD) applications with superior design features such as:

  • A rattle-free design to ensure a fixed center of activity, resulting in consistent, precise measurements.
  • Highly insoluble fused glass provides maximum environmental safety.
  • The smallest focal on the market for more accurate measurements.

Americium-Beryllium (AmBe) Neutron Sources for Oil Well Logging.

QSA Global, Inc. has manufactured thousands of sealed Americium-Beryllium (AmBe) neutron sources for notable oilfield service companies worldwide for oil well logging (OWL) including Schlumberger®, Halliburton®, Weatherford®, and Baker Hughes® as well as numerous independent tool manufacturers for over 60 years.

QSA Global, Inc. blends 241AmO2 and beryllium powders to form cermet pellets using proprietary techniques that result in extremely high neutron output per Curie for fast, precise porosity measurements in Wireline, Measurement While Drilling (MWD), and Logging While Drilling (LWD)  surveying applications.