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Innovative HP/HT Drilling Practices in Malaysia: A Case Study

Topics: HP/HT

Despite a short 18-month planning time and very limited geological data, the TTD-1 high-pressure/high-temperature (HP/HT) exploration well in East Malaysia’s Block SK was drilled successfully to its technical limit by adopting innovative practices. Various technical challenges were overcome, including an abnormally steep pressure ramp, high overbalance, and high temperatures.

Introduction

Malaysia has a relatively low number of offshore HP/HT wells drilled by various operators since the 1990s. In the last few years, a series of successful HP/HT discoveries has prompted operators to focus on this area. The major domestic operator began its first HP/HT exploration drilling in 2008.

In the 2012 HP/HT exploration campaign (Fig. 1), the operator of East Malaysia’s SK Block and their partners successfully drilled an HP/HT reservoir at a depth of 4830 m. TTD-1 was the deepest well of its kind drilled by this operator in Malaysia. The undisturbed-pore-pressure estimate was approximately 14,000 psi, with a maximum temperature of 325°F. Significant gas was discovered throughout the target reservoirs.

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 166110, “Successful HP/HT Drilling Through Innovative Practices: Sharing a Case Study of a Deep HP/HT Well,” by M. Syazwan, SPE, Y. Yap, SPE, L. Umar, SPE, and M.M. Pepple, SPE, Petronas Carigali, prepared for the 2013 SPE Annual Technical Conference and Exhibition, New Orleans, 30 September–2 October. The paper has not been peer reviewed.
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Innovative HP/HT Drilling Practices in Malaysia: A Case Study

01 April 2014

Volume: 66 | Issue: 4

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