Sepcor Inc.

Book. Enhanced oil recovery case study
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Table of Contents
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Chapter 1 Gas Flooding

Chapter 2 Enhanced Oil Recovery by Using CO2 Foams: Fundamentals and Field Applications

Chapter 3 Polymer Flooding - Fundamentals and Field Cases

Chapter 4 Polymer flooding Practice in Daqing

Chapter 5 Surfactant-Polymer Flooding

Chapter 6 Alkaline Flooding

Chapter 7 Alkaline-Polymer Flooding

Chapter 8 Alkaline-Surfactant Flooding

Chapter 9 ASP Fundamentals and Field Cases outside China

Chapter 10 ASP Process and Field Results

Chapter 11 Foams and Their Applications in Enhancing Oil Recovery

Chapter 12 Surfactant Enhanced Oil Recovery in Carbonate Reservoirs

Chapter 13 Water Based EOR in Carbonates and Sandstones: New Chemical Understanding of the EOR-Potential Using "Smart Water"

Chapter 14 Facility Requirements for Implementing a Chemical EOR Project

Chapter 15 Steam Flooding

Chapter 16 Cyclic Steam Stimulation

Chapter 17 SAGD for Heavy Oil Recovery

Chapter 18 In Situ Combustion

Chapter 19 Introduction to MEOR and Field Applications in China

Chapter 20 The Use of Microorganisms to Enhance Oil Recovery

Chapter 21 Field Application of Organic Oil Recovery (A New MEOR Method)

Chapter 22 Cold Production of Heavy Oil

رابط تحميل
https://www.mediafire.com/file/2p94e7tsbnx5xm5/%252814%2529_Enhanced_Oil_Recovery_Field_Case_Studies.pdf/file

عباس راضي
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Microbial enhanced oil recovery (MEOR) is an innovative approach gaining significant attention in the oil and gas industry. It involves the use of microorganisms to enhance the recovery of oil from reservoirs, which can offer a cost-effective and environmentally friendly solution for oil production.

Microbial EOR utilizes the natural abilities of certain microorganisms to alter the physical and chemical properties of the reservoir and mobilize trapped oil. These microorganisms, commonly known as microbes or bacteria, are introduced into the reservoir through injection wells. Once inside the reservoir, they initiate biological processes that help in increasing oil recovery.

One of the main mechanisms employed by microbes in MEOR is the production of biosurfactants. Biosurfactants are natural compounds produced by microorganisms that reduce the interfacial tension between oil and water. By doing so, they help in breaking down the oil-water interface and increasing the mobility of trapped oil. This enables the oil to flow more easily through the reservoir and be recovered through production wells.

Another mechanism utilized in microbial EOR is the production of biopolymers. Biopolymers are long-chain molecules produced by microbes that can improve the sweep efficiency of injected fluids. When injected into the reservoir, these biopolymers create a gel-like substance that reduces the flow of water through high-permeability zones and diverts it to low-permeability areas where oil is trapped. This ensures a more efficient displacement of oil, increases the reservoir sweep efficiency, and enhances oil recovery.

Furthermore, microbes can also modify the reservoir's rock properties. They can produce acids or enzymes that can dissolve or degrade the minerals present in the reservoir, thereby increasing the porosity and permeability of the rock. This alteration of the reservoir's rock properties improves the flow characteristics of fluids, facilitates the movement of oil, and enhances oil recovery.

The implementation of microbial EOR techniques requires a comprehensive understanding of the reservoir's geological and geochemical conditions, as well as the selection and optimization of suitable microorganisms. Thorough laboratory analysis and field trials are conducted to evaluate the effectiveness and feasibility of microbial EOR in specific reservoir conditions.

Microbial EOR offers several advantages over traditional EOR methods. It is a relatively low-cost technique compared to other methods such as chemical or thermal EOR. Additionally, it is considered environmentally friendly as it utilizes naturally occurring microorganisms and avoids the use of harsh chemicals.

Oilfield and Refinery Chemicals and Catalysts. Microbiological solutions for tank cleaning, soil and water restoration.

WELCOME TO SEPCOR, Inc. we're a specialty chemical company supplying natural gas and refining adsorbents and catalysts; microbes, oilfield and water treating chemicals. Our environmentally friendly technologies are utilized in the following industries: natural gas, oilfield, refining, petrochemical, agriculture, remediation, air and water purification. SEPCOR was incorporated in 2003 and provides solutions in separations, environmental solutions, microbial enhanced oil recovery, agriculture, and specialty chemicals.