[6] In addition, deep strata have poor diagenesis, weak pressure bearing capacity, so leakage is easy to happen, the risk of well control is high, and the treatment is difficult, which impact on deepwater wellbore integrity seriously.
Therefore, in this complex flow field with high spatiotemporal variability, the relevant petroleum equipment and tools will undergo varying degrees of corrosion, damage, and deformation.
Therefore, timely detection of leakage points and accurate evaluation are also important difficulties in ensuring the deepwater wellbore integrity.
By detecting the two important indicators of temperature and pressure, the change in borehole thickness of the casing string, as well as the location of leakage points and types of damage, can be determined.
Generally, when used together with acoustic acquisition tools and electromagnetic detectors, the detection and analysis of deepwater wellbore integrity will be more comprehensive.