Evaluation of Non-Nuclear Techniques for Well Logging: Technology Evaluation

Bond, Leonard J. ; Denslow, Kayte M. ; Griffin, Jeffrey W. ; Dale, Gregory E. ; Harris, Robert V. ; Moran, Traci L. ; Sheen, David M. ; Schenkel, Thomas

关键词: OIL WELLS;    WELL LOGGING;    TECHNOLOGY ASSESSMENT;    ECONOMICS;    EVALUATION;    NEUTRON SOURCES;    MATERIAL SUBSTITUTION;    INFORMATION SYSTEMS;    CORRELATIONS well logging;    nuclear techniques;    acoustic;    electromagnetic;    technology comparison;   

DOI  :  10.2172/1006309
RP-ID  :  PNNL-19867
PID  :  OSTI ID: 1006309
Others  :  Other: NN2001000
Others  :  TRN: US201106%%822

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来源: SciTech Connect

【 摘 要 】

This report presents an initial review of the state-of-the-art nuclear and non-nuclear well logging methods and seeks to understand the technical and economic issues if AmBe, and potentially other isotope sources, are reduced or even eliminated in the oil-field services industry. Prior to considering alternative logging technologies, there is a definite need to open up discussions with industry regarding the feasibility and acceptability of source replacement. Industry views appear to range from those who see AmBe as vital and irreplaceable to those who believe that, with research and investment, it may be possible to transition to electronic neutron sources and employ combinations of non-nuclear technologies to acquire the desired petro-physical parameters. In one sense, the simple answer to the question as to whether petro-physical parameters can be sensed with technologies other than AmBe is probably "Yes". The challenges come when attention turns to record interpretation. The many decades of existing records form a very valuable proprietary resource, and the interpretation of subtle features contained in these records are of significant value to the oil-gas exploration community to correctly characterize a well. The demonstration of equivalence and correspondence/correlation between established and any new sensing modality, and correlations with historic records is critical to ensuring accurate data interpretation. Establishing the technical basis for such a demonstration represents a significant effort.