Vorrichtung und Verfahren zur Bestimmung der Bohrmethode, um Formationsbewertungsmessungen zu optimieren
There are many natural pauses during rotary drilling operations where a portion of the drill string remains stationary. Pauses include drill pipe connections, circulating time, and fishing operations. These pauses are used to obtain formation evaluation measurements that take a long time or that ben...
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Main Authors | , , , |
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Format | Patent |
Language | German |
Published |
22.09.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | There are many natural pauses during rotary drilling operations where a portion of the drill string remains stationary. Pauses include drill pipe connections, circulating time, and fishing operations. These pauses are used to obtain formation evaluation measurements that take a long time or that benefit from a quiet environment, as opposed to the naturally noisy drilling environment. Various techniques that are sensitive to the mud flow, weight-on-bit, or motion of the drill string may be used alone or in combination to identify the drilling mode and control the data acquisition sequence. |
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Bibliography: | Application Number: DE19996020078T |