Published May 2022, Pg. 22-25

Section: Oil and gas field development and exploitation

UOT: 622.276.52

DOI: 10.37474/0365-8554/ 2022-05-22-25

The solution of stationary hydrodynamic task on the replacement of incompressible viscous-plastic oil with thickened water in homogeneous porous medium

G.G. Mammadova - Azerbaijan State University of Oil and Industry

S.D. Mustafayev - Azerbaijan State University of Oil and Industry

Keywords:  
stationary filtration
hydrodynamic task
viscous-plastic oil
thickened water
filtration rate
current pressure
pressure gradient
polyacrilamide
carboxymethyl-cellulose
ionomer

The paper reviews the stationary hydrodynamic task on the replacement of the incompressible viscous-plastic oil with the thickened water in the horizontal circular reservoir, in the centre of which a vertical oil well is operated.

The formula of filtration rates in different zones, the oil recovery rate, current pressure, current pressure gradients, the pressure in the border of oil and thickened water, as well as the formula of the partial and full duration of oil motion in the reservoir have been developed using generalized Darcy filtration law.

 All hydrodynamic calculation formulas developed should be applied in the solution of various theoretic tasks on the development of such oil fields, as well as when planning the projects on the exploration of new oil fields.

Moreover, using the well known analytical dependence between the average actual rate of fluid motion in the porous channels and filtration rate, the formulas for the time calculation of the fluid motion though the border, in one case - on its current position, in another one – from the saturation contour to the well, have been developed. 

The formula of the first case is applied in the isolation of the produced water flooded with the contour water (in the formation of liquid fingers) in the wells via the hydrodynamic method for the time calculation of repeated flooding after the implementation of the first cycle of corresponding measure, i.e. after the viscous oil, which is also viscous-plastic fluid in the formation conditions, is injected into the layer.

References:

1. Mirzadzhanzade A.Kh., Akhmetov I.M., Khasayev A.M., Gusev V.I. Tekhnologiya i tekhnika dobychi nefti. – M.: Nedra, 1986, s. 254.

2. Mustafayev S.D., Asadov A.Sh., Mustafayev N.S., Sadigova N.S. Nesmeshivayushcheesya vytesnenie odnoy neszhimaemoy nenyutonovskoy zhidkosti drugoy v odnorodnoy poristoy srede // Mezhdunarodniy zhurnal “Azerbaijan Elmi”, 2010, No 7-8, s. 42-45.

3. Mamedova G.G., Mustafayev S.D. Plosko-radial´naya fil´tratsiya neszhimaemoy vyazko-plastichnoy nefti vodoy v odnorodnom plaste // Azerbaidzhanskoe neftyanoe khozaistvo, 2019, No 1, s. 27-30.

4. Zheltov Yu.V., Martos I.N., Mirzadzhanzade A.Kh., Stepanova G.S. Razrabotka i expluatatsiya neftagazokondensatnykh mestorozhdeniy. – M.: Nedra, 1974, s. 254.

5. Gasymly A.M., Bagirov A.D., Aliyev E.N. Povyshenie nefteotdachi plastov, nakhodyashchikhsya dlitel´noe vremya v razrabotke // Azerbaidzhanskoe neftyanoe khozaistvo, 2019, No 12, s. 30-33.

 6. Mustafayev S.D., Mammadova G.G. Sikhilmayan ozlu-plastik neftin birjins layda su ile yasti-paralel sikhishdirilmasi // Azerbaijan neft teserrufaty, 2019, No 1, s. 27-30.

7. Mustafayev S.D., Khankishiyeva T.U. Posledovatel´naya plosko-radial´naya fil´tratsiya neszhimaemykh nesmeshivayushchikhsya zhidkostey v odnorodnoy poristoy srede // Azerbaijan Muhendislik Akademiyasinin Kheberleri, t. 12, 2020, No 4, s. 85-91.

8. Mustafayev S.D., Kazymov F.K., Guseynova R.K. Polusfericheskie statsionarnye dvizheniya neszhimaemykh neftey v odnorodnom plaste po razlichnym zakonam fil´tratsii // Vektor GeoNauk, 2020, t. 3, No 2, s. 24-29.

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