JPT

 

Vol. 59 No. 2

February 2007

Drilling and Cementing Technology

Cement-Bond-Log Interpretation Reliability

Two kinds of cement-bond-log (CBL) tools are run as part of a standard cement-evaluation program. The effectiveness of these tools and their evaluations often are challenged, and they are not regarded as a replacement for reservoir interzonal-communication tests performed between producing reservoirs. The value of continuing to run these tools was questioned by management. In response, the reliability of these tools and their ability to determine the existence of poor behind-casing cement quality were examined.

View a synopsis of SPE 101420 published in JPT

This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 101420, "Reliability of Cement-Bond-Log Interpretations Compared to Physical Communication Tests Between Formations," by Douglas Boyd, SPE, Salah Al-Kubti, SPE, Osama Hamdy Khedr, SPE, Naeem Khan, and Kholoud Al-Nayadi, SPE, Zadco; Didier Degouy, Adma-Opco; and Antoine Elkadi and Zaid Al Kindi, SPE, Schlumberger, prepared for the 2006 SPE Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE, 5-8 November.

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