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Snub Drilling

Snub drilling

Snub Drilling Overview If very high formation pressures and uncontrollable loss of circulation are expected during underbalanced drilling, use of a snubbing or a coiled tubing (CT) unit may be necessary. This type of underbalanced drilling is known as snub drilling. Snub drilling should be considered for wells with: Very high …

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Flow Drilling

Flow Drilling

Flow drilling was first developed for the Austin chalk reservoirs in Texas. Underbalanced conditions are created using

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Gasified Liquids

Gasified Liquid Drilling

Gasified liquids, which are used for underbalanced drilling applications, generally do not contain surfactants. Bottomhole pressures are ...

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