Optimization of the reservoir pressure maintenance system at the Zhetybay field
UDC: 622.276.4"722"
DOI: -
Authors:
JING YU1,
BAKIYEVA ALIYA B.
2,
LUO XIAOHAN1,
YANG SHUO1
1 Institute of Exploration and Development, TUHA Oilfield Branch, PetroChina Company Limited, Hami, China
2 Branch of JSC "KazNIPImunaigas" "KMG Engineering", Aktau, Kazakhstan
Keywords: compensation, pressure maintenance system, water-flooding element, injectivity, non-productive injection, development optimization, oil recovery, geological-hydrodynamic connectivity
Annotation:
The Zhetibay field, which has been under development since the 1960s, faces challenges such as reservoir heterogeneity, low rock permeability, and complex hydrodynamic connectivity between injection and production wells. The authors of the article conducted a hydrodynamic analysis of fluid filtration and redistribution processes in the reservoir. Based on the analysis results of pressure measurements, well production rates, and hydrodynamic modeling, areas with reduced pressure and accelerated water flooding were identified. Recommendations were proposed to optimize the placement of injection wells, adjust the water injection system and implement enhanced oil recovery technologies. The implementation of these measures resulted in an additional oil production of 75 tons from 10 completed operations, confirming their effectiveness.
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