scholarly journals ASPECTS OF REGULATIONION THE PROCESS OF FORMATION WATER INFLOW INTO HETEROGENEOUS GAS CONDENSATE RESERVOIRS USING OF NON-HYDROCARBON GASES

2021 ◽  
Author(s):  
Serhii Matkivskyi ◽  
Liliya Khaidarova ◽  
Stepan Kovalchuk
Keyword(s):  
Gas Condensate ◽  
Water Inflow ◽  
Formation Water ◽  
Hydrocarbon Gases ◽  
Gas Condensate Reservoirs

scholarly journals Effects of the rate of natural gas production on the recovery factor during carbon dioxide injection at the initial gas-water contact

2021 ◽  
Vol 1 (3(57)) ◽  
pp. 6-11
Author(s):  
Serhii Matkivskyi
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Gas Production ◽  
Gas Condensate ◽  
Recovery Factor ◽  
Formation Water ◽  
Hydrocarbon Gases ◽  
Water Contact ◽  
Natural Gas Production ◽  
Gas Recovery

The object of research is gas condensate reservoirs, which is being developed under the conditions of the manifestation of the water drive of development and the negative effect of formation water on the process of natural gas production. The results of the performed theoretical and experimental studies show that a promising direction for increasing hydrocarbon recovery from fields at the final stage of development is the displacement of natural gas to producing wells by injection non-hydrocarbon gases into productive reservoirs. The final gas recovery factor according to the results of laboratory studies in the case of injection of non-hydrocarbon gases into productive reservoirs depends on the type of displacing agent and the level heterogeneity of reservoir. With the purpose update the existing technologies for the development of fields in conditions of the showing of water drive, the technology of injection carbon dioxide into productive reservoirs at the boundary of the gas-water contact was studied using a digital three-dimensional model of a gas condensate deposit. The study was carried out for various values of the rate of natural gas production. The production well rate for calculations is taken at the level of 30, 40, 50, 60, 70, 80 thousand m3/day. Based on the data obtained, it has been established that an increase in the rate of natural gas production has a positive effect on the development of a productive reservoir and leads to an increase in the gas recovery factor. Based on the results of statistical processing of the calculated data, the optimal value of the rate of natural gas production was determined when carbon dioxide is injected into the productive reservoir at the boundary of the gas-water contact is 55.93 thousand m3/day. The final gas recovery factor for the optimal natural gas production rate is 64.99 %. The results of the studies carried out indicate the technological efficiency of injecting carbon dioxide into productive reservoirs at the boundary of the gas-water contact in order to slow down the movement of formation water into productive reservoirs and increase the final gas recovery factor.

scholarly journals Studying the influence of the carbon dioxide injection period duration on the gas recovery factor during the gas condensate fields development under water drive

2021 ◽  
Vol 15 (2) ◽  
pp. 95-101
Author(s):  
Serhii Matkivskyi ◽  
Oleksandr Kondrat
Keyword(s):  
Carbon Dioxide ◽  
Gas Condensate ◽  
Recovery Factor ◽  
Water Inflow ◽  
Formation Water ◽  
Carbon Dioxide Injection ◽  
Water Contact ◽  
Hydrocarbon Recovery ◽  
Injection Period ◽  
Gas Recovery

Purpose. Studying the process of carbon dioxide injection at the boundary of the initial gas-water contact in order to slow down the formation water inflow into producing reservoirs and increase the final hydrocarbon recovery factors. Methods. To assess the influence on gas recovery factor of the duration of carbon dioxide injection period at the initial gas-water contact, a reservoir development is studied using the main Eclipse and Petrel hydrodynamic modeling tools of the Schlumberger company on the example of a hypothetical three-dimensional model of a gas-condensate reservoir. Findings. The dependence of the main technological indicators of reservoir development on the duration of the carbon dioxide injection period at the initial gas-water contact has been determined. It has been revealed that an increase in the duration of the non-hydrocarbon gas injection period leads to a decrease in the formation water cumulative production. It has been found that when injecting carbon dioxide, an artificial barrier is created due to which the formation water inflow into the gas-saturated intervals of the productive horizon is partially blocked. The final gas recovery factor when injecting carbon dioxide is 61.98%, and when developing the reservoir for depletion – 48.04%. The results of the research performed indicate the technological efficiency of carbon dioxide injection at the boundary of the initial gas-water contact in order to slow down the formation water inflow into producing reservoirs and increase the final hydrocarbon recovery factors for the conditions of a particular field. Originality. The optimal value of duration of the carbon dioxide injection period at the initial gas-water contact has been determined, which is 16.32 months based on the statistical processing of calculated data for the conditions of a particular field. Practical implications. The use of the results makes it possible to improve the existing technologies for the gas condensate fields development under water drive and to increase the final hydrocarbon recovery factor.

New Approaches to Improve Economical Efficiency of Development of Gas-Condensate Reservoirs with Thin Oil Rims (Russian)

2011 ◽  
Author(s):  
Anton Yushkov ◽  
A.S. Romanov ◽  
I.R. R. Mukminov ◽  
A.E. Ignatiev ◽  
S.V. Romashkin ◽  
...  
Keyword(s):  
Gas Condensate ◽  
Economical Efficiency ◽  
Gas Condensate Reservoirs ◽  
New Approaches

Nitrogen Injection Into Stratified Gas-Condensate Reservoirs

1994 ◽  
Author(s):  
P.J. Sänger ◽  
H.K. Bjørnstad ◽  
Jacques Hagoort
Keyword(s):  
Gas Condensate ◽  
Gas Condensate Reservoirs ◽  
Nitrogen Injection

Effect of disjoining pressure on the onset of condensate blockage in gas condensate reservoirs

2012 ◽  
Vol 9 ◽  
pp. 160-165 ◽  
Author(s):  
Mohammad Mohammadi-Khanaposhtani ◽  
Alireza Bahramian ◽  
Peyman Pourafshary ◽  
Babak Aminshahidy ◽  
Babak Fazelabdolabadi
Keyword(s):  
Disjoining Pressure ◽  
Gas Condensate ◽  
Gas Condensate Reservoirs ◽  
Condensate Blockage

Monitoring the composition of gas condensate well streams based on samples taken from multiphase flow meters

2021 ◽  
pp. 127-139
Author(s):  
E. A. Gromova ◽  
S. A. Zanochuev
Keyword(s):  
Multiphase Flow ◽  
Oil And Gas ◽  
Gas Condensate ◽  
Flow Meters ◽  
Gas Condensate Reservoirs ◽  
Reliable Estimation ◽  
Development Control ◽  
Hydrocarbon System ◽  
Labor Consuming

The article highlights the relevance of reliable estimation of the composition and properties of reservoir gas during the development of gas condensate fields and the complexity of the task for reservoirs containing zones of varying condensate content. The authors have developed a methodology that allows monitoring the composition of gas condensate well streams of similar reservoirs. There are successful examples of the approach applied in Achimov gas condensate reservoirs at the Urengoy oil and gas condensate field. The proposed approach is based on the use of the so-called fluid factors, which are calculated on the basis of the known component compositions of various flows of the studied hydrocarbon system. The correlation between certain "fluid factors" and the properties of reservoir gas (usually determined by more labor-consuming methods) allows one to quickly obtain important information necessary to solve various development control tasks.

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