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US 2014/0174729 A1Published application
Method for determining parameters of a bottomhole and a near-bottomhole zone of a wellbore
AssigneeSchlumberger Technology Corporation
InventorsPAVEL EVEGENIEVICH SPESIVTSEV, VALERY VASILIEVICH SHAKO, BERTRAND THEUVENY
Life of this patent
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Abstract
Whiles moving a pipe string in a wellbore during tripping operations, pressure and temperature are measured. Based on the measured pressure and temperature, such parameters of a bottomhole and a near-bottomhole zone of the wellbore are calculated as skin factor, permeability, reservoir thickness, bottomhole pressure, and outflow or inflow from/to the zone under consideration.
Claims13
A method for determining parameters of a bottomhole and a near-bottomhole zone in a wellbore drilled in a reservoir, the method comprising:
- measuring pressure and temperature while moving a pipe string in the wellbore;
- and
- calculating parameters of the bottomhole and the near-bottomhole zone based on the measured pressure and temperature.
Dependencies are inferred from the claim text.