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The AAPG/Datapages Combined Publications Database

Indonesian Petroleum Association


24th Annual Convention Proceedings (Volume 2), 1995
Pages 387-398

Transition Zone Drilling in Tunu Field (Total Indonesie): A Case Study

T. A. Syamlan, Djoko Minto, Darto Sayogyo, J. C. Dubroca


To establish sound drilling procedures for reaching geological and reservoir objectives safely and economically and for limiting kick occurrences and magnitudes, a method for drilling inside the transition zone has been established for the TUNU gas field TOTAL INDONESIE - East KALIMANTAN.

The new approach which involves polycrystalline diamond compact bits, constant mud weight and gas indices follow up through long connection testing, has been proved to be a valid alternative to classical methods such as : high mud weights, D' exponent, etc. .... which generate higher well costs.

This paper will present the technical and economical aspects of utilizing new alternative drilling procedures & a post analysis for getting cost saving and rig time efficiency.

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