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Identification of the source of pressure communicationbetween well tubing-casing and casing-casing annulipresents an enormous challenge to petroleumengineers. Qatar Petroleum recently field-tested anacoustics based tool to successfully pinpoint the sourceof high pressure in the tubing casing annulus in a deepgas well in an onshore field. This paper presents adescription of the technology and the findings from thefield trial.
Farooqui et al. (Mon,) studied this question.