Attenuation of Casing Cemented With Conventional and Expanding Cements Across Heavy-Oil and Sandstone Formations
1992; Volume: 7; Issue: 03 Linguagem: Inglês
10.2118/18027-pa
ISSN2469-8504
AutoresR. M. Beirute, M. Wilson, Fred Sabins,
Tópico(s)Geotechnical Engineering and Underground Structures
ResumoSummary Studies were conducted with a large-scale displacement model containing manmade tar and competent (hard) manmade sandstone formations. This paper investigates the cement placement process and the acoustic response with standard logging tools. This investigation revealed that the formations behind the cement make a significant contribution to the pipe-attenuation rate. The large-scale acoustic experiments indicate that lower pipe-attenuation-rate levels are measured when tar formations are cemented. This occurs even with the same type of cement and the same annular clearances. The tests suggest that low-attenuation-rate levels also may be measured across other low-restraint formations.
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