Peculiarities of Identification of Reservoir Fluids Properties of Two-Phase With Oil Rim and Gas Cap Deposits: From Sampling to Justification of the Parameters for Calculating Reserves and PVT Data for Hydrodynamic Simulation of Field Development

Mapping Intimacies â—½  
2018 â—½  
Author(s):  
Ivan Promzelev â—½  
Alexander Brusilovsky â—½  
Dmitriy Kuporosov â—½  
Taras Yushchenko
Keyword(s):  
Two Phase â—½  
Hydrodynamic Simulation â—½  
Field Development â—½  
Pvt Data â—½  
Oil Rim

Continuous Incremental Reserves in an Oil Rim Marginal Field Development through Integrated Technical Initiatives and Technology Advancements

2014 â—½  
Author(s):  
Rahim Masoudi â—½  
Hooman Karkooti â—½  
Keng S. Chan â—½  
Mohamad B. Othman â—½  
M. Mehmet Altunbay
Keyword(s):  
Field Development â—½  
Oil Rim â—½  
Marginal Field

Impact Of Multilateral Wells On Oil Recovery In An Oil Rim Field Development Using Multilateral Wells With Natural Gas Lift And Inflow Control Devices In A Fractured Carbonate Reservoir

10.2118/113866-ms â—½  
2008 â—½  
Author(s):  
Osaze Iyamu â—½  
Carolina Coll â—½  
Chamsi Bouhafs â—½  
Machiel K. Butter â—½  
Riadh Bejaoui â—½  
...  
Keyword(s):  
Natural Gas â—½  
Oil Recovery â—½  
Carbonate Reservoir â—½  
Field Development â—½  
Fractured Carbonate â—½  
Control Devices â—½  
Oil Rim â—½  
Gas Lift

scholarly journals Limitation of gas inflows under the conditions of development of Botuobinsky horizon

Oil and Gas Studies â—½  
2020 â—½  
pp. 159-166
Author(s):  
I. I. Krasnov â—½  
V. F. Tomskaya â—½  
E. I. Inyakina â—½  
K. O. Tomsky â—½  
M. S. Ivanova â—½  
...  
Keyword(s):  
Oil And Gas â—½  
Geological Structure â—½  
Operating Conditions â—½  
Computational Method â—½  
Field Development â—½  
Oil Reserves â—½  
Main Factors â—½  
The Republic â—½  
Effective Development â—½  
Oil Rim

The article presents the results of the study of the geological structure of oil and gas deposits in Botuobinsky horizon, affecting the gasification of producing wells and gas breakthrough into the oil rim in the conditions of field development. In the course of the research, a characteristic of the reservoir was given, and the optimal gas-free flow rate was determined by a computational method, which allows us to limit the gas inflow for the operating conditions of the Srednebotuobinskoye oil and gas condensate field. The field under consideration is one of the unique storehouses of the East-Siberian oil cluster located in the Republic of Sakha (Yakutia). The main factors influencing the effective development of oil reserves of gas and oil deposits within the Central block and the Kurung license area are substantiated.

scholarly journals Numerical modeling of multiphase mass transfer processes in fractured-porous reservoirs

2021 â—½  
Vol 2131 (2) â—½  
pp. 022002
Author(s):  
Yu O Bobreneva â—½  
P I Rahimly â—½  
Yu A Poveshchenko â—½  
V O Podryga â—½  
L V Enikeeva
Keyword(s):  
Mass Transfer â—½  
Difference Scheme â—½  
Water Saturation â—½  
Splitting Method â—½  
Double Porosity â—½  
Two Phase â—½  
One Dimensional â—½  
Field Development â—½  
Porous Reservoirs â—½  
Phase Fluid

Abstract The paper presents an algorithm for solving the problem of the process of mass transfer of a two-phase fluid in a fractured-porous reservoir in a one-dimensional formulation. The presence of natural fractures in such reservoirs impedes various types of exploration and field development. Fractured-porous reservoirs are characterized by intense exchange fluid flow between fractures and porous blocks. Each system has its own individual set of filtration-capacity parameters, and this fact complicates the problem under consideration. To study the mass transfer of a two-phase fluid in a medium with double porosity, a four-block mathematical model with splitting by physical processes is proposed. The model is described by a system of partial differential equations. The splitting method forms two functional blocks on the water saturation and the piezoconductivity. For the numerical solution of this system, an absolutely stable implicit finite-difference scheme is constructed in the one-dimensional case. On the basis of the proposed difference scheme, pressures and saturations in the fracture system and matrix are obtained.

An experimental method for predicting the composition and properties of a produced fluid under the conditions of a two-phase filtration of a gas-liquid mixture during field development for depletion

2019 â—½  
Vol 5 (4) â—½  
pp. 21-36 â—½  
Author(s):  
Sergey A. Zanochuev â—½  
Alexander B. Shabarov
Keyword(s):  
Experimental Data â—½  
Liquid Phase â—½  
Experimental Method â—½  
Gas Phase â—½  
Relative Phase â—½  
Oil And Gas â—½  
Liquid Mixture â—½  
Two Phase â—½  
Field Development â—½  
Reservoir Fluid

Within the objectives of predicting the composition and properties of the produced fluid during the development of oil and gas condensate fields, this article proposes an experimental method for predicting the composition and properties of the produced fluid. In addition, the authors show its practical use in a situation where the liquid phase (precipitated condensate or oil) is filtered together with the gas phase. Based on the proposed approach, experimental data were obtained on changes in the current gas saturation of the formation, as well as on changes in the composition and properties of the produced fluid during field development for depletion. The studies make use of the real reservoir fluid samples and the data from the results of stream experiments, in order to determine the relative phase permeabilities.

Experience of Application of Different Multiphase Metering Technologies for Cold Production and High Viscosity Oil Systems

10.2118/206483-ms â—½  
2021 â—½  
Author(s):  
Mikhail Igorevich Tonkonog â—½  
Yermek Talgatovich Kaipov â—½  
Dmitry Sergeevich Pruglo
Keyword(s):  
Volume Fraction â—½  
High Viscosity â—½  
Production Optimization â—½  
Gas Content â—½  
Two Phase â—½  
Production Monitoring â—½  
Oil Rim â—½  
Phase Separator â—½  
High Viscosity Oil â—½  
Gas Volume

Abstract Production monitoring is essential not only for fiscal applications, but also for production optimization and efficient reservoir management. So, production measurements must be both accurate and frequent enough, revealing a consistent trend of well operating parameters. This is especially important for reservoirs of complex geology, like oil rim reservoirs in poorly consolidated sandstone formations with presence of aquifer and gas cap drive. Production monitoring can be implemented with different technologies, accuracy of monitoring is however affected by different factors like gas content, viscosity and temperature of produced fluids. Paper presents pragmatic approach and analysis of applicability of different measurement technologies: compact two-phase separator and two different multiphase metering technologies applied at oil wells of Tazovskoye field operated by LLC "Meretoyakhaneftegaz", which production conditions are very challenging due to high gas volume fraction of the produced fluid, high viscosities and low temperatures.

scholarly journals A change in oil viscosity during field development influences the Muskat — Leverett model solutions

Oil and Gas Studies â—½  
2019 â—½  
pp. 39-46
Author(s):  
Oleg B. Bocharov â—½  
Igor G. Telegin
Keyword(s):  
Viscosity Ratio â—½  
Water Saturation â—½  
Chemical Properties â—½  
Linear Displacement â—½  
Oil Viscosity â—½  
Two Phase â—½  
Viscosity Change â—½  
Field Development â—½  
Total Filtration

It has been repeatedly noted in the literature that the physic-chemical properties of oil extracted at different stages of exploitation can vary significantly. We have investigated a modification of the Buckley — Leverett model (BL model) in our previous works to study the influence of oil viscosity change on the solutions of twophase filtration problems. In this model the change in oil viscosity was modeled using the dependence of the viscosity ratio on dynamic water saturation. The solutions to the linear displacement problem at a given total filtration rate were analyzed. This article considers a modification of the two-phase isothermal Muskat — Leverett model (ML model), which takes into account capillary forces. The influence of oil viscosity change in the process of oil production on the structure of the solution is studied numerically a case study of the problem of radial displacement with a given pressure drop.

scholarly journals Perencanaan Pipa Dua Fasa pada Fasilitas Produksi Panas Bumi Dieng

2019 â—½  
Vol 3 (1) â—½  
pp. 36
Author(s):  
Ady Setya Nugroho
Keyword(s):  
Pressure Drop â—½  
Geothermal Field â—½  
Pipe Diameter â—½  
Steam Quality â—½  
Two Phase â—½  
Field Development â—½  
Calculation Results â—½  
Steam Parameters â—½  
Turbine Capacity

<p><span><span><span>Lapangan Panas Bumi Dieng beroperasi sejak tahun 2004 dengan kapasitas turbin 60 MW serta memiliki target produksi sebesar 55 MW selama tigapuluh tahun. Lapangan ini, masih layak untuk dilakukan pengembangan dengan total sebesar 110 MW. Dalam mengoptimalkan kualitas uap (<em>steam quality</em>) dari kepala sumur sampai dengan input turbin maka perlu adanya perencanan mengenai dimensi dari pipa yang mengalirkan uap. Parameter yang diperhatikan dalam perencanaan pipa dua fasa yaitu diameter pipa dan penurunan tekanan. Tujuan penelitian adalah menentukan diameter pipa dua fasa dan penurunan tekanan pada salah satu sumur pengembangan lapangan Panas Bumi Dieng. Metodologi perhitungan dimensi pipa ini menggunakan standar ASME dalam penentuan diameter pipa dan menghitung besarnya penurunan tekanan sebelum input turbin menggunakan <em>software pipesim. </em>Hasil perhitungan salah satu sumur yang memiliki masa aliran sebesar 60 kg/s <span> </span>didapatkan jenis pipa Xtra Strong (XS) kualitas uap 0.176 dengan diameter pipa 8 inchi serta kecepatan aliran yang optimal sebesar 27.33 m/s <span> </span>serta penurunan tekanan dari <em>well head</em> menuju separator adalah 7, 476 bar dengan tekanan input turbin sebesar 22,985 bar.</span></span></span></p><p><em>Dieng Geothermal Field operates since 2004 with a 60 MW turbine capacity and has a production target of 55 MW for thirty years. This field is still feasible for development with a total of 110 MW. In optimizing the quality of steam (steam quality) from the wellhead to the turbine input, it is necessary to plan on the dimensions of the pipe that flows steam. Parameters that are considered in planning two-phase pipes are pipe diameter and pressure drop. The research objective was to determine the two-phase pipe diameter and pressure drop at one of the wells in the Dieng Geothermal field development. The methodology for calculating the pipe dimensions uses the ASME standard in determining pipe diameter and calculating the amount of pressure drop before the turbine input using pipesim software. The calculation results of one well that has a flow period of 60 kg / s obtained Xtra Strong (XS) pipe type vapor quality 0.176 with 8 inches pipe diameter and optimal flow velocity of 27.33 m / s and pressure drop from well head to separator is 7 , 476 bars with turbine input pressure of 22,985 bars.</em></p>

scholarly journals Computer Simulation and Comparison of the Efficiency of Conventional, Polymer and Hydrogel Waterflooding of Inhomogeneous Oil Reservoirs

10.18321/ectj680 â—½  
2017 â—½  
Vol 19 (4) â—½  
pp. 323 â—½  
Author(s):  
A.N. Chekalin â—½  
V.M. Konyukhov â—½  
I.V. Konyukhov â—½  
A.V. Kosterin â—½  
S.V. Krasnov
Keyword(s):  
Computer Software â—½  
Polymer Flooding â—½  
Oil Field â—½  
Systems Of Nonlinear Equations â—½  
Two Phase â—½  
Field Development â—½  
Oil Displacement â—½  
Aqueous Polymer â—½  
First Case â—½  
Aqueous Polymer Solution

The oil displacement in a layered inhomogeneous reservoir using two types of physical-chemical technologies (polymer flooding and hydrogel flooding) is the subject of this research. In the first case the aqueous polymer solution of the desired concentration is injected into the porous reservoir creating the high-viscous moving fields. Unlike this technology, the hydrogel flooding is characterized by creation and evolution of the moving hydrogel field directly in porous medium in result of chemical reaction between the water solutions of two gel-forming components which one after another are injected into the oil reservoir with given time interruption. The first component is sorbed more intensively and moves slower than the second one, so when it gradually overtakes the first solution, they begin chemically react with creation of hydrogel. Special numerical methods, algorithms and computer software are developed to solve these systems of nonlinear equations, study and compare an efficiency of the oil field development at the different type of waterflooding. It is shown that creations of the moving polymer or hydrogel fields significantly increases the uniformity of oil displacement in all layers of reservoir and improve their basic exploitation parameters due to the cross-flows between layers and creation of the moving structures in the velocity field of two-phase flow. In doing so, hydrogel technology may be much more effectiveness in comparison with polymer flooding.

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