Nuclear Tools For Oilfield Logging-While-Drilling Applications
- Schlumberger PTC, 20 Wallace Rd., Princeton Junction, NJ 08550 (United States)
Schlumberger is an international oilfield service company with nearly 80,000 employees of 140 nationalities, operating globally in 80 countries. As a market leader in oilfield services, Schlumberger has developed a suite of technologies to assess the downhole environment, including, among others, electromagnetic, seismic, chemical, and nuclear measurements. In the past 10 years there has been a radical shift in the oilfield service industry from traditional wireline measurements to logging-while-drilling (LWD) analysis. For LWD measurements, the analysis is performed and the instruments are operated while the borehole is being drilled. The high temperature, high shock, and extreme vibration environment of LWD imposes stringent requirements for the devices used in these applications. This has a significant impact on the design of the components and subcomponents of a downhole tool. Another significant change in the past few years for nuclear-based oilwell logging tools is the desire to replace the sealed radioisotope sources with active, electronic ones. These active radiation sources provide great benefits compared to the isotopic sources, ranging from handling and safety to nonproliferation and well contamination issues. The challenge is to develop electronic generators that have a high degree of reliability for the entire lifetime of a downhole tool. LWD tool testing and operations are highlighted with particular emphasis on electronic radiation sources and nuclear detectors for the downhole environment.
- OSTI ID:
- 21513393
- Journal Information:
- AIP Conference Proceedings, Vol. 1336, Issue 1; Conference: CAARI 2010: 21. International Conference on the Application of Accelerators in Research and Industry, Fort Worth, TX (United States), 8-13 Aug 2010; Other Information: DOI: 10.1063/1.3586136; (c) 2011 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABSORPTION
BOREHOLES
CONTAMINATION
INDUSTRY
LIFETIME
MWD SYSTEMS
NEUTRONS
PERSONNEL
PROLIFERATION
RADIATION DETECTORS
RADIATION SOURCES
RADIOISOTOPES
RELIABILITY
SAFETY
BARYONS
CAVITIES
ELEMENTARY PARTICLES
FERMIONS
HADRONS
ISOTOPES
MEASURING INSTRUMENTS
NUCLEONS
REAL TIME SYSTEMS
SORPTION