Increasing efficiency of hydrocarbon fields development based on complex geomechanical research

Kashnikov, Yu. A.; Ashikhmin, S. G.; Shustov, D. V.; Yakimov, S. Yu.; Kukhtinskii, A. E.

doi:10.24887/0028-2448-2019-3-66-69

OIJ

2019

DOI: 10.24887/0028-2448-2019-3-66-69

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Increasing efficiency of hydrocarbon fields development based on complex geomechanical research

Yu. A. Kashnikov

S. G. Ashikhmin

D. V. Shustov

et al.

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Cited by 4 publications

(2 citation statements)

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“…One of notable features of the development of fractured reservoirs are the pronounced deformation processes occurring at a decreasing reservoir pressure. As a result, filtration characteristics can change significantly during exploitation of the field [26]. An example of the T-Fm reservoir of Sukharev field is the area of well 118.…”

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confidence: 99%

Estimation of the influence of fracture parameters uncertainty on the dynamics of technological development indicators of the Tournaisian-Famennian oil reservoir in Sukharev oil field

Kozyrev

Krivoshchekov

2022

PMI

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Issues related to the influence of reservoir properties uncertainty on oil field development modelling are considered. To increase the reliability of geological-hydrodynamic mathematical model in the course of multivariate matching, the influence of reservoir properties uncertainty on the design technological parameters of development was estimated, and their mutual influence was determined. The optimal conditions for the development of the deposit were determined, and multivariate forecasts were made. The described approach of history matching and calculation of the forecast of technological development indicators allows to obtain a more reliable and a less subjective history match as well as to increase the reliability of long-term and short-term forecasts.

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mentioning

confidence: 99%

Estimation of the influence of fracture parameters uncertainty on the dynamics of technological development indicators of the Tournaisian-Famennian oil reservoir in Sukharev oil field

Kozyrev

Krivoshchekov

2022

PMI

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“…In study [4], in order to construct a mathematical model, the authors developed a method to calculate oil filtration into the well taking into account dependency of filtration properties on the stress-strain state. In paper [2] in order to design hydraulic fracturing of the reservoir, a hydrodynamic model took into account geomechanical properties by assigning a dependency between permeability and pressure variation.…”

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confidence: 99%

Accounting of geomechanical layer properties in multi-layer oil field development

Galkin

Krivoshchekov

Kozyrev

et al. 2020

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Amid the ever-increasing urgency to develop oil fields with complex mining and geological conditions and low-efficiency reservoirs, in the process of structurally complex reservoir exploitation a number of problems arise, which are associated with the impact of layer fractures on filtration processes, significant heterogeneity of the structure, variability of stress-strain states of the rock mass, etc. Hence an important task in production engineering of such fields is a comprehensive accounting of their complex geology. In order to solve such problems, the authors suggest a methodological approach, which provides for a more reliable forecast of changes in reservoir pressure when constructing a geological and hydrodynamic model of a multi-layer field. Another relevant issue in the forecasting of performance parameters is accounting of rock compressibility and its impact on absolute permeability, which is the main factor defining the law of fluid filtration in the productive layer. The paper contains analysis of complex geology of a multi-layer formation at the Alpha field, results of compression test for 178 standard core samples, obtained dependencies between compressibility factor and porosity of each layer. By means of multiple regression, dependencies between permeability and a range of parameters (porosity, density, calcite and dolomite content, compressibility) were obtained, which allowed to take into account the impact of secondary processes on the formation of absolute permeability. At the final stage, efficiency of the proposed methodological approach for construction of a geological and hydrodynamic model of an oil field was assessed. An enhancement in the quality of well-by-well adaptation of main performance parameters, as well as an improvement in predictive ability of the adjusted model, was identified.

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Experimental evaluation of compressibility coefficients for fractures and intergranular pores of an oil and gas reservoir

Wang

Кузьмин

2021

PMI

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The paper is devoted to studies of the volumetric response of rocks caused by changes in their stress state. Changes in the volume of fracture and intergranular components of the pore space based on measurements of the volume of pore fluid extruded from a rock sample with an increase in its all-round compression have been experimentally obtained and analyzed. Determination of the fracture and intergranular porosity components is based on the authors' earlier proposed method of their calculation using the values of longitudinal wave velocity and total porosity. The results of experimental and analytical studies of changes in porosity and its two components (intergranular and fractured) under the action of effective stresses are considered. This approach allowed the authors to estimate the magnitude of the range of changes in the volumetric compressibility of both intergranular pores and fractures in a representative collection of 37 samples of the Vendian-age sand reservoir of the Chayanda field. The method of separate estimation of the compressibility coefficients of fractures and intergranular pores is proposed, their values and dependence on the effective pressure are experimentally obtained. It is determined that the knowledge of the values of fracture and intergranular porosity volumetric compressibility will increase the reliability of estimates of changes in petrophysical parameters of oil and gas reservoirs caused by changes in the stress state during the development of hydrocarbon fields.

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Increasing efficiency of hydrocarbon fields development based on complex geomechanical research

Cited by 4 publications

References 0 publications

Estimation of the influence of fracture parameters uncertainty on the dynamics of technological development indicators of the Tournaisian-Famennian oil reservoir in Sukharev oil field

Estimation of the influence of fracture parameters uncertainty on the dynamics of technological development indicators of the Tournaisian-Famennian oil reservoir in Sukharev oil field

Accounting of geomechanical layer properties in multi-layer oil field development

Experimental evaluation of compressibility coefficients for fractures and intergranular pores of an oil and gas reservoir

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