Prognosis of hydrocarbon recovery coefficients of offshore gas and gas-condensate fields
DOI:
https://doi.org/10.15587/2312-8372.2019.180542Keywords:
hydrocarbon recovery factor, gas and gas-condensate field, exploration data, field development efficiencyAbstract
One of the main and important sections of the offshore gas and gas condensate field’s development project is the forecast of hydrocarbon recovery coefficient. The most accurate forecast of the hydrocarbon recovery factor of offshore gas and gas condensate deposits is of particular importance for the quality management of their development processes through the timely establishment and implementation of the necessary priority measures. In view of this, the object of research is prediction of hydrocarbon recovery of offshore gas and gas condensate deposits at different stages of their development. The task of selection of models of prediction of coefficients of current and final gas and condensate recovery of sea gas and gas condensate deposits is investigated by creation of special models of their determination for different periods before watering. It is noted that for long-term gas and gas condensate fields, the use of evolutionary models is more efficient and efficient for accurate forecasting of recoverable gas reserves at certain stages of development. Evolutionary models were constructed in two stages – preliminary analysis stage (training interval) and prediction stage (examination interval). As a result of the research, reliable models are proposed for forecasting the coefficients of current and final gas and condensate recovery of offshore gas and gas condensate deposits by different stages of development. A distinctive feature of this definition of hydrocarbon recovery field coefficient prediction models is the use of balance and recoverable deposit reserves data for different stages of development. The study used geological and field data on the VII horizon of the Sangachal-Sea-Duvanna-Sea-Hara-Zira field (Azerbaijan). On the basis of selected mathematical models, coefficients of current and final hydrocarbon recovery can be determined at different stages and efficiency of the process of development of deposits can be estimated. The obtained results will create opportunities to control the development strategy of the deposit and to select the optimal method of determining geological and technical measures used to increase the coefficient of final hydrocarbon recovery.
References
- akirov, S. N. (1998). Razrabotka gazovykh, gazokondensatnykh i neftegazo-kondensatnykh mestorozhdeniy. Moscow: Struna, 628.
- Zakirov, S. N. (1998). O nefte-, gazo- i kondensatootdache plasta (v poryadke obsuzhdeniya). Neftyanoye khozyaystvo, 6, 38–40.
- Mirzadzhanzade, A. Kh., Shakhverdiyev, A. Kh. (1997). Dinamicheskiye protsessy v nefte gazodobyche. Moscow: Nauka, 253.
- Kalinkin, A. V., Lyugay, D. V., Bilalov, F. R. (2012). Realizatsiya osnovnykh polozheniy kontseptsii razrabotki mestorozhdeniy uglevodorodov na zavershayushchey stadii. Gazovaya promyshlennost, 4 (675), 20–23.
- Savchenko, V. V. (1994). Sozdaniye metodov povysheniya gazootdachi zalezhey prirodnykh gazov s uchetom primeneniya geologo-promyslovykh dannykh. GANG im. I. M. Gubkina, 44.
- Samedov, T. A., Mikailova, N. E. (2014). Uproshchennaya skhema rascheta koeffitsiyenta gazootdachi dlya morskikh mestorozhdeniy s pomoshchyu regressionnogo analiza. Oborudovaniye i tekhnologii dlya neftegazovogo kompleksa, 6, 47–50.
- Krasnova, Ye. I., Laputina, Ye. S., Krasnov, I. I. (2015). Prognozirovaniye vliyaniya plastovoy vody na kondensatootdachu. Neft i gaz Zapadnoy Sibiri: materialy Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii, posvyashchennoy 90-letiyu so dnya rozhdeniya Kosukhina Anatoliya Nikolayevicha. Tyumen: TyumGNGU, 49–53.
- Lysenko, V. D. (2006). Obosnovaniye proyektnoy dobychi nefti na morskom mestorozhdenii. Neftepromyslovoye delo, 1, 4–15.
- Vasilyev, Yu. N., Ilnitskaya, V. G. (2014). Osnovnyye faktory, vliyayushchiye na koeffitsiyent konechnoy gazootdachi. Vesti gazovoy nauki, 3 (19), 116–120.
- Zykin, M. Ya., Peremyshtsev, Yu. A., Friman, Yu. M. (2008). Osnovnyye polozheniya metodiki obosnovaniya konechnoy gazootdachi mestorozhdeniy (zalezhey). Nedropolzovaniye XXI vek, 5, 34–42.
- Brusilovskiy, A. I. (2002). Fazovyye prevrashcheniya pri razrabotke mestorozhdeniy nefti i gaza. Moscow: Graal, 575.
- Kondrat, R. M. (1992). Gazokondensatootdacha plastov. Moscow: Nedra, 255.
- Mirzadzhanzade, A. Kh., Stepanova, G. S. (1977). Matematicheskaya teoriya eksperimenta v dobyche nefti i gaza. Moscow: Nedra, 198.
- Aziz, K., Settari, A. (1979). Petroleum Reservoir Simulation. London: Elsevier Applied Science, 475.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2019 Tofig Samadov
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
