نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای redrill:
v: to cease producing oil and gas from a well when it becomes unprofitable or to cease further work on a newly drilled well when it proves not to contain profitable quantities of oil or gas. Several steps are involved: part of the casing may be removed and salvaged;one or more cement plugs are placed in the borehole to prevent migration of fluids between the different formations penetrated by the borehole;and the well is abandoned. In most oil-producing states, it is necessary to secure permission from official agencies before a well may be abandoned.
to cease efforts to produce or inject fluids in a wells and to plug the well sufficiently to protect the environment and the ability to redrill and develop other reserves at a later date.
n/v: Enlarge the small wellbore with enlarging bit .For example,in the upper well section drill a small wellbore with small bit firstly and then enlarge the bore to the required well diameter with oversized bit
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