IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition 2018
DOI: 10.2118/190991-ms
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A Precise MPD Technology to Reduce Risk in Drilling of Fractured Cavernous Carbonate with Narrow Pressure Margins

Abstract: It is effective to drill horizontal wells in carbonate to increase production. However, the horizontal sections were limited and hard to be extended by means of conventional drilling due to high risk of drilling in fractured cavernous carbonate. Application of a precisely pressure controlled drilling system was developed to have successfully drilled and extended horizontal sections, reduced risk of drilling in the said kind of wells with narrow pressure margins in western China’s Tarim basin. A … Show more

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