Geology, geography and global energy

Scientific and Technical Journal

Methods of monitoring and surveys wells with annular pressure

2014. №3, pp. 66-68

Glebova Lyubov V. - C.Sc. in Geology and Mineralogy Associate Professor, Astrakhan State Technical University, 16 Tatishchev st., Astrakhan, 414056, Russian Federation, lvglebova@mail.ru

Mazina Mariya D. - Undergraduate, Astrakhan State Technical University, 16 Tatishchev st., Astrakhan, 414056, Russian Federation, mazina74@mail.ru

In this paper have been presented methods of monitoring and surveys wells with annular pressure. Moreover we describe causes of appearance and methods of liquidation annular pressure. Annular pressure is one of the powerful anthropogenic impacts on ecosystems, which arises in cemented annulus. This problem may form griffins, ethnogenic deposits and uncontrolled blowout. In Russia you can see a huge number of wells with annular pressure. This complication can be prevented by ensuring quality isolation of permeable intervals and integrity of casing string. Geophysical methods of quality control cementing are being used for research of annular place. Use sealing liquid is most effecting method of liquidation.

Key words: межколонное давление, межколонное пространство, антропогенные факторы, геофизические методы, герметичность обсадной колонны, цементирование, неконтролируемое фонтанирование, техногенные залежи, герметизирующие жидкости, грифоны, annular pressure, annular

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