Saturday, May 7, 2011

Petroleum Goodies: Sidetrack

Petroleum Goodies: Sidetrack


Sidetrack

Posted: 07 May 2011 10:00 AM PDT

Sidetrack: To drill an alternative wellbore away from an initial wellbore. A sidetracking action may be performed on purpose or may happen unintentionally. Deliberate sidetracks might bypass an useless portion of the initial wellbore or investigate a geologic aspect close by.

In the bypass situation, the secondary wellbore is normally drilled considerably parallel to the previous well, which can be inaccessible because of an irretrievable fish, rubbish in the hole, or a collapsed wellbore. Commonly found in drilling.

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