Methodology for taking into account the effect of carbonate cement in predicting the reservoir properties of deep-seated reservoirs in Western Siberia
https://doi.org/10.7868/S2587739920040072
Abstract
The article proposes a method for normalizing neutron logging readings, considering the degree of carbonatization of rocks based on the use of lateral logging data. The presence of a large amount of carbonate cement leads to a decrease in the parameters of porosity and permeability, which cannot always be determined by standard methods for determining the reservoir properties by well logging. Recalculation of permeability, performed according to the proposed method, allows to consider the risks of low starting parameters in the areas affected by carbonatization.
About the Authors
S. P. MikhailovRussian Federation
Saint-Petersburg
A. A. Shtyrlyaeva
Russian Federation
Saint-Petersburg
Yu. G. Voronin
Russian Federation
Saint-Petersburg
L. A. Guryevskikh
Russian Federation
Saint-Petersburg
References
1. Zhukovskaya E.A., Popova O.A., Pischulyeva A.V. Regularities and factors of change in collector properties of the J14-J15 formations of the Urmano-Archinsky zone. Geofizika [Geophysics]. 2018, no. 4, pp. 59–66. (In Russ.)
2. Latyshova M.G., Dyakonova T.F., Tsirulnikov V.P. Dostovernost’ geofizicheskoi i geologicheskoi informatsii pri podschete zapasov nefti i gaza [Reliability of geophysical and geological information when calculating oil and gas reserves]. Moscow, Nedra, 1986.
3. Metodicheskie rekomendatsii po podschetu geologicheskikh zapasov nefti i gaza ob”emnym metodom: metodicheskie rekomendatsii [Methodical recommendations for calculating geological reserves of oil and gas by volumetric method: methodical recommendations], ed. V.I. Petersilje, V.I. Poroskun, G.G. Yatsenko. Moscow, 2003.
4. Phodnobesnih A.V., Ovchennikov V.P. The main types of secondary alteration of reservoir rocks of the sedimentary cover of the West Siberian plate. Vestnik Tomskogo gosudarstvennogo universiteta [Tomsk State University Journal]. 2015, no. 400, pp. 393–403. doi: 10.17223/15617793/400/60 (In Russ.)
5. Khamatdinov R.T. et al. Technical instructions for conducting geophysical surveys and work on the cable in oil and gas wells. Moscow, 2001.
Review
For citations:
Mikhailov S.P., Shtyrlyaeva A.A., Voronin Yu.G., Guryevskikh L.A. Methodology for taking into account the effect of carbonate cement in predicting the reservoir properties of deep-seated reservoirs in Western Siberia. PROneft. Professionally about Oil. 2020;(4):51-56. (In Russ.) https://doi.org/10.7868/S2587739920040072