Integrated analysis of fault sealing capabilities when studying and mapping hydrocarbon traps in the Dnieper-Donets Depression


  • O. I. Okrepkyj Company "Burysma Group", Ukraine
  • O. M. Tiapkina Private University "Tutkovsky Institute", Ukraine



Dnieper-Donets Depression, fault traps, stratigraphic traps, fault sealing capabilities, Allan diagrams, Shale Gouge Ratio


This paper demonstrates how a set of advanced technologies provided a better understanding of the geological structure of the Solokha gas condensate field and underground gas storage located in onshore Ukraine. In particular, these technologies helped us improve the process of hydrocarbon trap delineation and subsequent exploration well planning in this area. The study area is structurally complex because it is located in the central part of the axial zone of the Dnieper-Donets Depression (DDD). This part of the DDD is characterized by active halokinesis that has produced morphologically developed salt bodies and associated with them plicative and disjunctive deformations of the host rocks. The structure of the area has to a large extent been formed under the impact of one of such bodies, the closely located and actively developed Bakeyski diapir. The workflow used consists in synergic integration of high-quality 3D seismic data processing, detailed structural and stratigraphic interpretation and seismic inversion combined with pore pressure measurements in wells, lithotype clustering using Kohonen self-organizing maps, and fault seal analysis. A ramified network of faults, which plays an important role in the study area, formed independent tectonic traps in the Middle Jurassic sediments of the Bayosian age and led to the compartmentalization of one of the stratigraphic traps in the Lower Carboniferous sediments of the Visean age. To analyze sealing capabilities of these faults, Allan diagrams and Shale Gouge Ratio are used. The first of these methods is based on the juxtaposition of permeable and impermeable rocks on both sides of the fault, and the second, more advanced, is based on the calculation of the percentage of the clay component of all rocks that have slipped along the fault past a given point.


Tiapkina, A. N., Tyapkin, Yu. K., & Okrepkyj, A. I. (2015). Adequate velocity model as a basis for effective seismic imaging when mapping hydrocarbon traps associated with salt domes. Geofizicheskiy zhurnal, 37(1), 147—164. (in Russian).

Tiapkina, A. N., Tyapkin, Yu. K., & Okrepkyj, A. I. (2014). Аdvanced methods for seismic imaging when mapping hydrocarbon traps associated with salt domes. Geofizicheskiy zhurnal, 36(3), 86—104. (in Russian).

Chirvinskaya, M. V., & Sollogub, V. B. 1980. Deep Structure of the Dniepr-Donets Aulacogen from Geophysical Data. Kiev: Naukova Dumka (in Russian).

Allan, U. S. (1989). Model for hydrocarbon migration and entrapment within faulted structures. AAPG Bulletin, 73(7), 803—811. doi: 10.1306/44B4A271-170A-11D7-8645000102 C1865D.

Asquith, G., & Krygowski, D. (2004). Basic Well Log Analysis. AAPG Methods in Exploration. No 16. Tulsa: AAPG.

Burianyk, M. (2003). Petroleum geophysics in Ukraine. The Leading Edge, 22(5), 430—433. doi: 10.1190/1.1579576.

Couples, G., Ma, J., Lewis, H., Olden, P., Quijano, J., Fasae, T., & Maguire, R. (2007). Geomechanics of faults: impacts on seismic imaging. First Break, 25(10), 83—90.

Farmer, P., Zhou, Z. Z., & Jones, D., (2009). The role of reverse time migration in imaging and model estimation. The Leading Edge, 28(4), 436—441. doi: 10.1190/1.3112761.

Kohonen, T. (2001). Self-Organizing Maps. New-York: Springer Verlag.

Manzocchi, T., Heath, A. E., Walsh, J. J., Childs, C. (2002). The representation of two-phase fault-rock properties in flow simulation models. Petroleum Geoscience, 8(2), 119—132. doi: 10.1144/petgeo.8.2.119.

Okrepkyj, O., & Tiapkina, O. (2015). The application of fault seal analysis at the Solokha field, Dnieper-Donets Basin, Ukraine — case studies. Geology, Geophysics and Environment, 41(3), 275—283. doi: 10.7494/geol.2015.41.3.275.

Stovba, S. M., & Stephenson, R. A. (2002). Style and timing of salt tectonics in the Dniepr-Donets Basin (Ukraine): implications for triggering and driving mechanisms of salt movement in sedimentary basins. Marine and Petroleum Geology, 19(10), 1169—1189. doi: 10.1016/S0264-8172(03)00023-0.

Tiapkina, O. M., & Okrepkyj, O. I. (2017). Reservoir characterization and delineation in a geologically complex area of onshore Ukraine — Challenges and solutions. 79th EAGE Conference, Extended Abstracts, Paper We A3 13. doi: 10.3997/2214-4609.201701169.

Tiapkina, O. M., Okrepkyj, O. I., & Kolisnichenko, V. G. (2012). Seismic imaging and interpretation of salt-trapped prospects in the Dnieper-Donets Basin, Ukraine — Case studies. 74th EAGE Conference, Extended Abstracts, Paper B039. doi: 10.3997/2214-4609.20148153.

Tiapkina, O. M., Solovyov, I. V., & Polunin, O. I. (2010). Imaging and mapping of hydrocarbon traps in a thrust zone from onshore Ukraine — A case study. 72nd EAGE Conference, Extended Abstracts, Paper P312. doi: 10.3997/2214-4609.201401197.

Tiapkina, O. M., Voitsytski, Z. Y., Sydorenko, G. D., & Parhomenko, T. V. (2008). Imaging and mapping of hydrocarbon traps in areas of complex salt tectonics in Ukraine — Case studies. 70th EAGE Conference, Extended Abstracts, Paper P076. doi: 10.3997/2214-4609.20147885.

Yielding, G., Freeman, B., & Needham, D. T. (1997). Quantitative fault seal prediction. AAPG Bulletin, 81(6), 897—917.

Yielding, G. (2012). Using probabilistic shale smear modelling to relate SGR predictions of column height to fault-zone heterogeneity. Petroleum Geoscience, 18(1), 33—42. doi: 10.1144/1354-079311-013.



How to Cite

Okrepkyj, O. I., & Tiapkina, O. M. (2018). Integrated analysis of fault sealing capabilities when studying and mapping hydrocarbon traps in the Dnieper-Donets Depression. Geofizičeskij žurnal, 40(6), 68–79.