JPT

 

Vol. 59 No. 3

March 2007

HP/HT Challenges

Swelling Packers Solve Zonal-Isolation Challenge in Oman High-Pressure Wells

The Harweel cluster of reservoirs in southern Oman is Petroleum Development Oman's first enhanced-oil-recovery project. Zonal isolation is crucial to the success of the planned miscible-gas-injection project. Previous isolation attempts using cementing technology alone have proved to be unsuccessful. On the basis of results obtained from both laboratory and field tests, swelling packers in combination with cement have demonstrated zonal isolation in these challenging high-pressure reservoirs. This could enable a significant increase in reserves and, hence, ultimate recovery in these fields.

View a synopsis of SPE 100361 published in JPT

This article, written by Assistant Tech-nology Editor Karen Bybee, contains highlights of paper SPE 100361, "PDO's Proactive Approach To Solving a Zonal-Isolation Challenge in Harweel HP Wells Using Swell Packers," by M.S. Laws, SPE, (now with Shell Abu Dhabi B.V.), J.E. Fraser, SPE, and H.F. Soek, SPE, Petroleum Development Oman, and N. Carter, SPE, Easywell UAE (now with Sensornet Ltd.), prepared for the 2006 IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Bangkok, Thailand, 13-15 November.

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