Dynamic Reservoir-Pressure Maintenance System Study in Carbonate Reservoir with Complicated Pore Structure by Production Analysis, Production Logging and Well-Testing

Aslanyan, Artur; Gilfanov, A.; Gulyaev, Danila; Krichevsky, Vladimir; Timerbaev, M.

doi:10.2118/187776-ms

Day 2 Tue, October 17, 2017 2017

DOI: 10.2118/187776-ms

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Dynamic Reservoir-Pressure Maintenance System Study in Carbonate Reservoir with Complicated Pore Structure by Production Analysis, Production Logging and Well-Testing

Artur Aslanyan¹,

A. Gilfanov

Danila Gulyaev

et al.

Abstract: To discover remained reserves and recommend production enhancement operations in a carbonate reservoir with long production history it is important to perform not only production analysis, water breakthrough areas, but also areas, that took a lot of injected water during injection history. It's not an easy task in case of complicated formation pore structure especially than injection were carried on with high pressures and overbalancing. Combined approach was used for remained reserves localizat… Show more

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Cited by 15 publications

References 4 publications

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Oil Production Enhancement Operations Recommendations by Well-Testing and Decline Analyze

Lazutkin

Gulyaev

Morozovskiy

2017

Day 1 Mon, October 16, 2017

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In the paper, it is shown that the results of the interpretation of measurements of permanent reference gages on the electric submersible pump (ESP) together with the data on the change in the historical production rate of the wells allow carrying out the justification and support of the oil production enhancement operations and also the analysis of the efficiency of the oil production enhancement operations performed by estimating the current skin-factor of the wells and reservoir pressure. In particular, wells have been identified in which worsening of the skin-factor in time is observed. For them, the optimal time for performing repeated well interventions was chosen to improve the skin-factor and increase production from the wells. Separate results of the work are represented by an express method for selecting the optimal time for transferring production wells to injectors for pressure maintains to optimize the production of a section of the oilfield based on the telemetry gages on the ESP. At the same time, the forecasts were made on the basis of express 2D models in the software "Topaze", which significantly increases the speed of work execution compared to full 3D modeling, and the accuracy of forecasts remains quite high. The paper shows that the results of the historical flow rate of wells and the telemetry of pumps are a good informational basis for the application of a new method for analyzing cross-wellbore interference – multi-well deconvolution (MWD). Thus, without a loss of production, a analysis of the results of a production decline was carried out on the basis of the algorithms for interpretation of the well test and recommendations of production enhancement operations were justified to increase production.

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Oil Production Enhancement Operations Recommendations by Well-Testing and Decline Analyze

Lazutkin

Gulyaev

Morozovskiy

2017

Day 1 Mon, October 16, 2017

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Active Technologies of Production-Logging and Well-Testing in Injection Wells with Induced Fractures (Russian)

Musaleev

2017

SPE Russian Petroleum Technology Conference

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Verification Technique of Technical Efficiency of Physical-Chemical EOR

Morozovskiy¹,

Kanevskaya²,

Ulmukhametov

et al. 2018

Day 3 Wed, October 17, 2018

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The deterioration in the structure of stocks and the need to maintain the level of oil production leads to an ever-increasing use of tertiary methods of oil production. At present, the most popular of whom PJSC "NK Rosneft" is the physico-chemical methods for increasing oil recovery (PH-CH EOR). The application of such methods has shown its effectiveness and is actively scaled at various reservoirs and stages of field development. The variety of objects on which these technologies are applied required the creation of a uniform methodology for verifying the technological efficiency of the PH-CH EOR. This technique is considered in this paper. The methodology was based on the generalization of the experience accumulated in the Company in the field of application of technologies of physicochemical methods of increasing oil recovery. After summarizing the results, a transition was made to the estimation of dimensionless parameters that characterize the technological efficiency (TE) of PH-CH EOR measures. This approach allowed us to cluster implementation objects by the effectiveness of various methods. The generalization of the results of the implementation of the PH-CH EOR also allowed the development of a unified methodology for the calculation of technological efficiency, which became possible to formalize and, accordingly, to automate. Automation of the process of calculating technological efficiency allowed it to unify the majority of the Company's subsidiaries and significantly accelerate, which in turn made it possible to concentrate on selecting candidates and more efficient technologies, rather than on mechanical calculations.

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Dynamic Reservoir-Pressure Maintenance System Study in Carbonate Reservoir with Complicated Pore Structure by Production Analysis, Production Logging and Well-Testing

Cited by 15 publications

References 4 publications

Oil Production Enhancement Operations Recommendations by Well-Testing and Decline Analyze

Oil Production Enhancement Operations Recommendations by Well-Testing and Decline Analyze

Active Technologies of Production-Logging and Well-Testing in Injection Wells with Induced Fractures (Russian)

Verification Technique of Technical Efficiency of Physical-Chemical EOR

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