Completion and Evaluation of Cased Horizontal Wells

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S.E. Robertshaw, Mobil Canada, S.C. Peach, R.E. Jensen, Schlumberger

Abstract

Horizontal well completion and evaluation techniques have been successfully developed. New technologies addressing well desi~m, formation, cement and production evaluation, and perforating of horizontal wells are being implemented. This paper reviews the utilization and engi- neered integration ol’ thc,e technologies. A commentary on each includes specific technical and procedural consid- erations with references to a recent cased horizontal completion, Mobil Rainbow 1-14KR-I 10-6W6_ presented. Technical considerations with supporting log examples demonstrate the utilization and integration of these technologies used to maximize the objectives of horizontal wells. These objectives typically include miai- mizing drawdown, avoiding high risk intervals, selective completion, and optimizing ultimate productivity and eco- nornic recovery.