DETERMINATION OF THE SPATIAL POSITION OF ABANDONED WELLHEADS IN THE WATER AREA OF THE TAZ BAY BY MAGNETIC SURVEY
Abstract
The article presents the results of magnetometric engineering work at the Semakovsky subsoil block within the water area of the Taz Bay of the Kara Sea. The purpose of the work was to determine the coordinates of the exact location of the wellheads of 6 abandoned wells and to examine the wellhead area for the presence of foreign magnetic objects. This paper examines the procedure for finding abandoned wells using marine magnetic surveys and shows their reflection in an abnormal magnetic field. The relevance of the work is related to ensuring the environmental safety of the water area and the requirements of the Safety Rules in the oil and gas industry. To meet the requirements, it is necessary to check the technical condition of the wellheads of abandoned wells for the presence of hydrocarbon omissions. A diving survey of the area in the wellhead zone did not reveal any hydrocarbon passes, however, it confirmed the presence of a number of man-made objects near the wellheads identified by magnetic surveys. When working at shallow depths, the original configuration of the magnetometer was proposed and used.
References
- Ivanenko, A. N., V. V. Arhipov, and V. A. Sapunov, 2018: Opredelenie prostranstvennogo polozheniya podvodnyh truboprovodov s ispolzovaniem polnogradientnoj magnitometricheskoj sistemy. Vesti gazovoj nauki, 36 (4), 94–104.
Ivanenko, A. N., Yu. V. Brusilovskij, A. V. Hortov, and I. A. Veklich, 2020: Geofizicheskie issledovaniya Kerchensko Tamanskogo shelfa Chernogo morya pri inzhenernom stroitelstve. Journal of oceanological research, 48 (2), 91–106.
Ivanenko, A. N., Yu. V. Brusilovskij, A. M. Filin, and N. A. Shishkina, 2012: Metodiki obrabotki i interpretacii magnitnyh dannyh pri rabotah na mestorozhdeniyah nefti i gaza. Geofizika, 3, 60–70.
Gorodnitskiy, A. M., Yu. V. Brusilovskiy, A. N. Ivanenko, A. M. Filin, and N. A. Shishkina, 2013: New methods for processing and interpretation of marine magnetic anomalies and their application to structural research and oil and gas exploration in the Kuril forearc, the Barents Sea and the Caspian Sea, Russia. J. of Earth Science Frontiers, China, China University of Geosciences (Beijing), 4, 73–85.
NOAA, 2020, https://www.ngdc.noaa.gov/geomag/emag2.html.
Transfer of copyrights occurs on the basis of a license agreement between the Author and Shirshov Institute of Oceanology, RAS
