Apparatus and method for determining fluid interface proximate an electrical submersible pump and operating the same in response thereto

A production system placed inside a wellbore has a production tubing and an ESP for flowing fluid from the wellbore into the production tubing. A sensor string including distributed sensors is placed along the sensor string and provides temperature measurements along the production tubing uphole of...

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Bibliographic Details
Main Authors WANG XIAOWEI, GILL COOPER C, WINGSTROM LUKE
Format Patent
LanguageEnglish
Published 24.11.2015
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A production system placed inside a wellbore has a production tubing and an ESP for flowing fluid from the wellbore into the production tubing. A sensor string including distributed sensors is placed along the sensor string and provides temperature measurements along the production tubing uphole of the ESP. A controller determines from the temperature measurements a change in temperature that exceeds a threshold and determines therefrom level of a liquid in the wellbore.
Bibliography:Application Number: US201313838177