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While most types of logs are used to characterize the wellbore, formation, and fluids prior to well completion, a number of logging tools are available to provide information during production operations and beyond. The temperature-logging tool includes a cage, which is open to the wellbore fluid, at the tool's bottom end. Inside the cage is a thermistor that senses the surrounding fluid temperature. The preferred sensor is a platinum element because the electrical resistance of the sensor varies linearly with temperature over a wide range and is stable over time. The circuitry of the tool is designed so that the voltage across the sensor is proportional to the sensor's electrical resistance.
- Information Technology > Knowledge Management (0.43)
- Information Technology > Communications > Collaboration (0.43)
The following safety and environmental tips should be considered on every production logging job: * All wireline units should be equipped with at least one 30-lbm dry chemical fire extinguisher. Drip pans should be provided for trucks on barges. Use of a plastic bucket rather than a metal one will minimize the danger of a static-electricity spark. When a potential risk is identified, the purchaser of the logging should make all required operational changes. Because service companies perform most of the production logging, it is also the purchaser's responsibility to ensure that a system is in place for: * Contractor selection and evaluation * Defining, communicating, and stewarding performance requirements * Managing interfaces between the purchaser and the contractor * Monitoring performance and correcting deficiencies
- Information Technology > Knowledge Management (0.43)
- Information Technology > Communications > Collaboration (0.43)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Advanced imaging technologies provide high-resolution information about lithology, structure, sedimentary features and borehole conditions. This Topic describes the operating principles, applications and limitations of acoustic and resistivity imaging tools, and illustrates how you can use borehole imaging as a reservoir monitoring and characterization tool.
- Geophysics > Seismic Surveying > Borehole Seismic Surveying (1.00)
- Geophysics > Borehole Geophysics (1.00)