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Geoinformatika 2016; 4(60) : 5-12 (in Ukrainian)

AN ALGORITHM AND SOFTWARE TO ESTIMATE THE DEVELOPMENT OF OFF-BALANCE PETROLEUM SHEET RESERVES IN UNPRODUCTIVE LAYERS

O.E. Lozynskyi, V.O. Lozynskyi

Ivano-Frankivsk National Technical University of Oil and Gas, 15, Karpatska Str., Ivano-Frankivsk, 76019, Ukraine,
e-mail: oeloz@nung.edu.ua

Purpose. The authors had a task to create an algorithm and an accessible for end customers modern computer program able to make decisions on the clarification of the geological factors which limit inflow of petroleum in the suspended wells draining off-balance stocks in productive layers; and to increase the productivity of layers.
Design/methodology/approach. To estimate prospects to increase the productivity of mining holes with the non-commercial inflow of petroleum due to additional channels of influx from layers in a mining hole, it is necessary to conduct experimental works to obtain information on the technological possibility of layers hydraulic fracturing depending on the possibility of a concrete mining hole size of pressure of liquid inflating; presence and size of changes in the hydraulic permeability of layers and near well bore at different values of supply pressure; the expected increase of the productivity of a mining hole while maintaining channels of filtration fixed at liquid inflating in the layers. It is feasible to obtain this information on condition the mining holes are studied by inflating liquid in to the layers with the gradual increase of supply pressure.
Findings. We suggest describing the drop of pressure at the well bore in multi-cycle research with an equation connecting pressure at the moment of closing the mining hole to register drawdown pressure curve with a complex parameter which includes aggregated volume of liquid inflating in to the layers before the mining hole closing, time duration of liquid inflating in to layers, duration of time from the beginning of the liquid inflating in to layers to the moment of time after stopping the inflating, and the coefficient of hydraulic permeability of the layer in any loop of research.
Practical value/implications. The created method and computer technology can permit to accumulate, store, process and recreate objective geological information and to make grounded decisions on measures to increase the productivity of petroleum containing layers, and as a result, to move the off-balance sheet supplies in the areas of wells draining to the balance ones and increase the total production of petroleum of a deposit.

Keywords: filtering, geological information, lean flow, oil and gas region, permeability, petroleum, petroleum reservoirs, repression, reservoir pressure, slaughter pressure, well.

The full text of papers

 

References:

  1. Boiko V.S., Boiko R.V. Pidzemna hidrohazomekhanika. Lviv, Apriori, 2006, pp. 1-450 (in Ukrainian).
  2. Boiko V.S. Proektuvannia rozrobky naftovykh rodovyshch. Ivano-Frankivsk, Nova zoria, 2012, pp. 1-588 (in Ukrainian).
  3. Boiko V.S. Tekhnolohiia rozrobky naftovykh rodovyshch. Ivano-Frankivsk, Nova zoria, 2011, pp. 1-509 (in Ukrainian).
  4. Zakirov S.N. Novye printsipy i metody razrabotki mestorozhdeniy nefti i gaza. Izhevsk, IKI, 2009, pp. 1-484 (in Russian).
  5. Kanevskaya R.D. Matematicheskoe modelirovanie razrabotki mestorozhdeniy nefti i gaza s primeneniem gidravlicheskogo razryva plasta. Moskva, Nedra-Biznestsentr, 1999, pp. 1-212 (in Russian).
  6. Lozynskyi V.O., Lozynskyi O.Ye., Zhuchenko H.O. Hidrodynamichni modeli maloproduktyvnykh naftonasychenykh plastiv. Rozvidka ta rozrobka naftovykh i hazovykh rodovyshch, 2008, vol. 2, pp. 61-63 (in Ukrainian).
  7. Lysenko V.D. Innovatsionnaya razrabotka neftyanykh mestorozhdeniy. Moskva, Nedra-Biznestsentr, 2000, pp. 1-516 (in Russian).
  8. Mysliuk M.A., Zarubin Yu.O. Modeliuvannia yavyshch i protsesiv u naftohazopromyslovii spravi. Ivano-Frankivsk, Ekor, 1999, pp. 1-496 (in Ukrainian).
  9. Shagiev R.G. Issledovanie skvazhin po KVD. Moskva, Nauka, 1998, pp. 1-144 (in Russian).
  10. Green D.W., Willhite G.P. Enhanced Oil Recovery. Texas, Richardson, 1998, pp. 1-204.
  11. Tarek A. Reservoir engeneering. Bombei, Gulg Professional Publishing, 2001, pp. 1-1016.