scholarly journals Development of Biochemically Enhanced Oil Recovery Technology for Oil Fields – A Review

Nafta-Gaz ◽  
2021 ◽  
Vol 77 (2) ◽  
pp. 63-75
Author(s):  
Kamalakshi Devi ◽  
◽  
Ranjan Kumar Bhagobaty ◽  
Keyword(s):  
Crude Oil ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
New Technologies ◽  
Limited Resource ◽  
Reservoir Rocks ◽  
Microbial Species ◽  
Tertiary Oil Recovery ◽  
By Products ◽  
Recovery Methods

Crude oil, a major source of energy, is being exploited as a driver of the economy throughout the world. Being a limited resource, the price of crude oil increases constantly and the exploitation of mature reservoirs becomes essential in order to meet the ever-increasing energy demands. As conventional recovery methods are not sufficient to fulfil the growing needs, there is an incessant demand for developing new technologies which can help in efficient tertiary recovery in old reservoirs. Petroleum biotechnology has been emerging as a branch that can provide solutions to major problems in the oil industry, including increasing oil production from marginal oil wells. The enhanced oil recovery (EOR) method comprises four methods – chemical, thermal, miscible, and immiscible gas flooding – as well as microbial interference to increase recovery of the remaining hydrocarbons trapped in reservoir rocks. Biochemically enhanced oil recovery comprises an array of blooming technologies for tertiary oil recovery methods which is eco-friendly, cost-effective, and efficient in extracting the residual oil trapped in reservoir rocks. Biochemical enhanced oil recovery (BcEOR) is based on the principle of using biochemical by-products produced by microbial species to enhance oil recovery, etc. All these technologies work on the principles of reducing viscosity, increasing permeability, modifying solid surfaces, emulsifying through adherence to hydrocarbons, and lowering interfacial tension. BcEOR technologies either employ the beneficial microorganism itself or the biochemical by-products produced by the microbial species to enhance tertiary oil recovery. This review paper discusses the chronological development of biologically enhanced oil recovery and its various mechanisms.

Mixtures of Anionic/Cationic Surfactants: A New Approach for Enhanced Oil Recovery in Low-Salinity, High-Temperature Sandstone Reservoir

SPE Journal ◽  
2016 ◽  
Vol 21 (04) ◽  
pp. 1164-1177 ◽  
Author(s):  
Yingcheng Li ◽  
Weidong Zhang ◽  
Bailing Kong ◽  
Maura Puerto ◽  
Xinning Bao ◽  
...  
Keyword(s):  
Crude Oil ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Cationic Surfactants ◽  
Surfactant Solution ◽  
Before And After ◽  
Tertiary Oil Recovery ◽  
Different Temperatures ◽  
Ultralow Interfacial Tension ◽  
Anionic And Cationic Surfactants

Summary Test results indicate that a lipophilic surfactant can be designed by mixing both hydrophilic anionic and cationic surfactants, which broaden the design of novel surfactant methodology and application scope for conventional chemical enhanced-oil-recovery (EOR) methods. These mixtures produced ultralow critical micelle concentrations (CMCs), ultralow interfacial tension (IFT), and high oil solubilization that promote high tertiary oil recovery. Mixtures of anionic and cationic surfactants with molar excess of anionic surfactant for EOR applications in sandstone reservoirs are described in this study. Physical chemistry properties, such as surface tension, CMC, surface excess, and area per molecule of individual surfactants and their mixtures, were measured by the Wilhelmy (1863) plate method. Morphologies of surfactant solutions, both surfactant/polymer (SP) and alkaline/surfactant/polymer (ASP), were studied by cryogenic-transmission electron microscopy (Cryo-TEM). Phase behaviors were recorded by visual inspection including crossed polarizers at different surfactant concentrations and different temperatures. IFTs between normal octane, crude oil, and surfactant solution were measured by the spinning-drop-tensiometer method. Properties of IFT, viscosity, and thermal stability of surfactant, SP, and ASP solutions were also tested. Static adsorption on sandstone was measured at reservoir temperature. IFT was measured before and after multiple contact adsorptions to recognize the influence of adsorption on interfacial properties. Forced displacements were conducted by flooding with water, SP, and ASP. The coreflooding experiments were conducted with synthetic brine with approximately 5,000 ppm of total dissolved solids (TDS), and with a crude oil from a Sinopec reservoir.

scholarly journals Polymer flooding for enhanced oil recovery

2019 ◽  
Author(s):  
Marcelo Eduardo Novaes Freire Filho ◽  
Rosangela Barros Zanoni Lopes Moreno
Keyword(s):  
Mathematical Models ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Polymer Solutions ◽  
Rheological Behaviour ◽  
Oil Industry ◽  
Polymer Flooding ◽  
Viscous Fluids ◽  
Reservoir Rocks ◽  
Recovery Methods

In this work, Enhanced Oil Recovery methods were studied, with a focus on polymer flooding. Several works were surveyed to verify which parameters most affect the rheological behaviour of polymer solutions. Characteristics of reservoir rocks, important definitions of the oil industry and mathematical models of the rheology of viscous fluids were investigated as well.

Preculaatities of evaluation of the effectiveness of flow deflection technologies

2018 ◽  
pp. 93-101
Author(s):  
A. A. Kazakov ◽  
V. V. Chelepov ◽  
R. G. Ramazanov
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Production Well ◽  
Oil Companies ◽  
Efficiency Calculation ◽  
Petroleum Companies ◽  
Flow Deflection ◽  
Recovery Methods

The features of evaluation of the effectiveness of flow deflection technologies of enhanced oil recovery methods. It is shown that the effect of zeroing component intensification of fluid withdrawal leads to an overestimation of the effect of flow deflection technology (PRP). Used in oil companies practice PRP efficiency calculation, which consists in calculating the effect on each production well responsive to subsequent summation effects, leads to the selective taking into account only the positive components of PRP effect. Negative constituents — not taken into account and it brings overestimate over to overstating of efficiency. On actual examples the groundless overstating and understating of efficiency is shown overestimate at calculations on applied in petroleum companies by a calculation.

scholarly journals Laboratory evaluation of hybrid chemical enhanced oil recovery methods coupled with carbon dioxide

2021 ◽  
Vol 7 ◽  
pp. 960-967
Author(s):  
Mohammad Hossein Ahmadi ◽  
S.M. Alizadeh ◽  
Dmitry Tananykhin ◽  
Saba Karbalaei Hadi ◽  
Pavel Iliushin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Laboratory Evaluation ◽  
Recovery Methods

Comparison of flow deviation technologies and hydrodynamic enhanced oil recovery methods

2021 ◽  
pp. 67-70
Author(s):  
A.N. Ivanov ◽  
◽  
M.M. Veliev ◽  
I.V. Vladimirov ◽  
E.A. Udalova ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Flow Deviation ◽  
Recovery Methods
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