The White Tiger field is at the declining oil production stage, so the main focus of the development analysis is on maintaining the current production decline rates and improving the efficiency of oil reserves development. Comprehensive programs of geological and technological operations are being implemented, such as new wells drilling, sidetracking, transfer of wells to overlying horizons, hydraulic fracturing of terrigenous formations, expansion of the use of electric submersible pumps, application of enhanced oil recovery methods. With the increasing challenges of maintaining Vietsovpetro JV production levels, management and specialists are focusing on optimizing labor costs, in particular the process of automating the history matching of simulation models. An important advantage of the PEXEL software is the possibility of use by a wide range of specialists. The specialist's task is reduced to selecting the parameters to be modified, determining the acceptable range of their variation and setting the permissible error of matching; all the rest is performed automatically. Algorithms implemented in PEXEL software enable to reduce the time for history matching simulation models. This is especially important for large models (from 1 million cells), with a large number of wells (20 and more) and a long development period (from 10 years), as labor inputs for routine operations are significantly reduced. For small models (up to 500 thousand cells), objects with a small number of wells (up to 10) and a short development period (up to 5 years), due to the relative low complexity of history matching, labor cost savings can reach 70-80 %.
References
1. Ivanov A.N., Lubnin A.A., Dao Nguyen Hung et al., Improvement of development efficiency for the mature offshore field by the example of White Tiger Lower Miocene deposits (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2024, no. 5, pp. 105–109, DOI: https://www.doi.org/ 10.24887/0028-2448-2024-5-105-109
2. Syrtlanov V.R., On some issues of adaptation of hydrodynamic models of hydrocarbon deposits (In Russ.), Vestnik TsKR Rosnedra, 2009, no. 2, pp. 81-90.
3. Syrtlanov V.R., Golovatskiy Yu.A., Ishimov I.N., Mezhnova N.I., Assisted history matching for reservoir simulation model (In Russ.), SPE-196878-RU, 2019,
DOI: https://doi.org/10.2118/196878-MS
4. Syrtlanov V.R., Denisova N.I., Khismatullina F.S., Some aspects of reservoir modelling of large fields for field development planning and monitoring (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2007, no. 5, pp. 70-74.
5. Khismatullina F.S., Syrtlanov V.R., Syrtlanova V.S., Dubrovin A.V., Some aspects of a technique of adaptation of hydrodynamic models of non-uniform oil strata
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2005, no. 1, pp. 47-51.
6. Certificate on state registration of the computer program no. 2018661844. PEXEL (Peksel) - a program for creating and editing grids, properties and wells of geological and hydrodynamic models of oil and gas fields with the ability to dynamically compile and execute code, Author: Aubakirov A.R.
7. Ivanov A.N., Aubakirov A.R., Khismatullina F.S., PEXEL algorithm for automated history matching of relative phase permeabilities (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2024, no. 4, pp. 60–63, DOI: https://www.doi.org/10.24887/0028-2448-2024-4-60-63
8. Ivanov A.N., Khismatullina F.S., Aubakirov A.R., Kurguzkina I.V., The PEXEL algorithm application for automated history matching reservoir simulation mode (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2022, no. 9, pp. 49-52, DOI: https://doi.org/10.24887/0028-2448-2022-9-49-52
9. Gavura A.V., Sannikov I.N., Khismatullina F.S., Upravlenie razrabotkoy mestorozhdeniy na osnove modelirovaniya plastovykh protsessov (Field development management based on modeling of reservoir processes), Moscow: Publ. of Gubkin University, 2017, 157 p.
10. Pyatibratov P.V., Gidrodinamicheskoe modelirovanie razrabotki neftyanykh mestorozhdeniy (Hydrodynamic modeling of oil field development), Moscow: Publ. of Gubkin State University, 2015, 167 p.
