Integrating Advanced Production and Image Logging in a High-GOR Horizontal Well

Production logging in high gas/oil ratio (GOR) horizontal wells is difficult because of complicated multiphase-flow regimes in long undulating wellbores. Accurate diagnosis of gas-entry points is important to understand well performance and the reservoir dynamics and characterization and, if possible, to plan remedial shutoff action. This paper summarizes a case study of a high-GOR horizontal well from which oil production decreased significantly because of gas entry. An integrated production-logging tool was used to detect gas-entry points and determine the flow profile.

View a Synopsis of SPE 93473.

This article, written by Technology Editor Dennis Denney, contains highlights of paper SPE 93473, "Integration of Advanced Production and Image Logging in a High-GOR Horizontal Well With Assessment of Remedial Actions," by A.A. Al-Fawwaz, SPE, and H.K. Mubarak, Saudi Aramco, and M. Zeybek, SPE, Schlumberger Oilfield Services, prepared for the 2005 SPE Middle East Oil & Gas Show and Conference, Bahrain, 12-15 March. The paper has not been peer reviewed.