Detecting hydrodynamic barriers of reservoirs based on drilling of horizontal wells to refine geological models
https://doi.org/10.31660/0445-0108-2023-5-21-33
Abstract
During the geological modeling process, it can be problematic to substantiate predicted faults or barriers that are estimated from seismic data and require additional research. However, logging data from horizontal wells (LWD — logging while drilling), whose trajectories intersect predicted seismic faults or hydrodynamic barriers, can be used to validate such barriers.
The aim of this study is to substantiate hydrodynamic barriers in several fields in Western Siberia using data from a complex of geophysical surveys conducted while drilling horizontal wells that pass through such barriers. The main research method is azimuthal gamma-gamma density logging and its interpretation to identify hydrodynamic barriers, including tectonic faults, based on the criteria described in A. V. Chashkov's, S. Z. Mutaev's and other scholars' works.
This study presents the practical application of the azimuthal gamma-gamma density logging method to substantiate predicted seismic faults, estimated from seismic data and require additional research, using the example of the First field. This model has been examined and accepted by the State Reserves Committee.
About the Authors
Alena V. Ilmendeeva
KogalymNIPIneft Branch of LUKOIL-Engineering LLC in Tyumen
Russian Federation
Russian Federation
Alena V. Ilmendeeva, Leading Geologist,
Tyumen.
Nikita V. Nosov
KogalymNIPIneft Branch of LUKOIL-Engineering LLC in Tyumen
Russian Federation
Russian Federation
Nikita V. Nosov, Geologist of the 2nd category,
Tyumen.
References
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Review
For citations:
Ilmendeeva A.V., Nosov N.V. Detecting hydrodynamic barriers of reservoirs based on drilling of horizontal wells to refine geological models. Oil and Gas Studies. 2023;(5):21-33. (In Russ.) https://doi.org/10.31660/0445-0108-2023-5-21-33
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