Showing results for: oil-in-water Articles
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Simple method estimates the variation of oil production rate with oil–water viscosity ratio and water injection rate
The proper design and maintenance of waterfloods requires comprehension of how viscous oil can be displaced by water, and how oil recovery can be optimised. In this work, simple predictive tools are developed to rapidly investigate the variation of heavy oil production rate with oil water viscosity ratio and water injection rate for 5–spot waterflood. Estimations are found to be in excellent ...
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Comparing Oil in Water Analysis Methods
Wilks Enterprise has published a new White Paper that discusses various oil in water methods and their correlation with regulatory methods. While the amount of oil in water is highly regulated -- it can also be a challenging measurement. It is complicated by the fact that oil comes in many forms and the measurement is defined by the particular regulatory method. When EPA 1664 is the regulatory ...
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3D simulation of hydrocarbon–expulsion history: a method and its application
During the hydrocarbon expulsion simulation process, it is needed to consider the different mechanisms, modes and kinds of expulsion efficiency at different stages, as well as the changes of oil and gas phases, and the solubility of gas in oil and water. Aiming at the above issues, the combination of modelling methods with stages of normal–pressure hydrocarbon–expulsion and over–pressure episodic ...
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Transport of Edible Oil Emulsions in Clayey Sands: One-Dimensional Column Results and Model Development
Abstract: The transport and retention of a soybean oil-in-water emulsion was evaluated in laboratory columns packed with a medium to fine clayey sand amended with varying amounts of kaolinite. Results from these experiments demonstrated that appropriately prepared soybean oil-in-water emulsions can be distributed in clayey sand at least 80 cm away from injection point. Kaolinite addition to the ...
By Redox Tech
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High-Pressure Microfluidisation Enables Oil Droplets to Enter Inorganic Crystals
Analytik reports on ground-breaking work by the Department of Chemistry at the University of Sheffield using a LV-1 Microfluidizer to create novel oil-in-water Nano emulsions that were subsequently occluded within a calcite crystalline lattice. Particle Technology is an important discipline that underpins many industrial sectors, including biomedical applications, latex paints and coatings, ...
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Quantifying the concentration of crude oil microdroplets in oil–water preparations
Dissolved constituents of crude oil, particularly polycyclic aromatic hydrocarbons (PAHs), can contribute substantially to the toxicity of aquatic organisms. Measured aqueous concentrations of high–molecular weight PAHs (e.g., chrysenes, benzo[a]pyrene) as well as long‐chain aliphatic hydrocarbons can exceed the theoretical solubility of these sparingly soluble compounds. This is attributed to ...
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What is an Emulsion Breaker?
Before we delve into emulsion breakers, let’s make sure we’re all on the same page. At its most basic, an emulsion is a mixture of two (or more) liquids that won’t normally mix (i.e., are “immiscible”). Oil and water are a perfect example. In general, we might expect immiscible fluids to separate on their own-as is the case with the oil and water in the bottle of ...
By Trucent
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Research of novel process route and scale-up based on oil-water separation flotation column
A novel process ‘coalescence-airflotation-carrier preferential adsorption’ utilising an oil-water separation flotation column with a unique structure was used in the oil-water separation field. The oil-water separation flotation column contains the cyclonic separation and airflotation separation which has advantages in oily sewage treatment, especially in polymer-flooding-drive oily sewage ...
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Surfactant-assisted oil-in-water monitoring
A variety of common surfactants have been used to reduce fouling and enhance the performance of fluorescence-based oil-in-water monitors. Among the most effective are the alcohol ethoxylates with HLB values close to 12. Examples are SurfonicTM L24-9 (Hunstman, USA, HLB 13) and TergitolTM 15-S-7 (HLB 12.1). These surfactants readily convert heterogeneous oil/water mixtures into homogeneous, ...
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Woodside goodwyn - treating flushing fluid
Client: Woodside Goodwyn During a scheduled shutdown on the Goodwyn platform, Woodside contracted CETCO Oilfield Services to treat the fluid generated during a flushing operation on the Goodwyn West Alpha condensate (water) stripping column T-100 and, install a permanent CETCO adsorption OIW (Oil in Water) package. During the shutdown of the Goodwyn platform, the vessel was drained, purged ...
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Enhanced oil–mineral aggregation with modified bentonite
The application of modified-bentonite-enhanced oil dispersion in water and oil–mineral aggregate (OMA) formation was studied in the laboratory. The effect of modification on the surface properties of bentonite was characterized. The hydrophobicity and surface electric properties of bentonite were significantly improved by attaching cetyltrimethyl ammonium bromide to its surface. The ...
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The synthesis and use of steric–stabilised titania nanoparticles in Pickering–emulsion preparation
We employed the well–accepted sol–gel process to synthesise spherical titania nanoparticles of narrow size range 290 nm to 1,600 nm by mixing reactants such as titanium tetra isopropoxide (precursor), organic solvents (ethanol and isopropanol) and for the steric stabilisation, commercial surfactants (Brij 30, Brij 72, Brij 76 and Marlinat 242/28). Experimentally, the size distribution of ...
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Why Choose Glass Spray Bottles For Essential Oils
The glass spray bottles for essential oils are so versatile, they are perfect for making a room spray or facial spray with essential oils. The spray mechanism ensures even distribution of essential oils, allowing you to enjoy its benefits in a refreshing and convenient way. The best spray container is a glass spray bottle, because essential oils do not react chemically with glass. The essential ...
By Yafu Glass
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Performance Testing of Micro Media and Conventional Filters operating on Heavy Oil Produced Water in the San Joaquin Valley (California)
"Performance Testing of Micro Media and Conventional Filters operating on Heavy Oil Produced Water in the San Joaquin Valley (California)", an application note, was presented by Michael Dejak and Michael Sheedy at the 23rd Annual Produced Water Society Seminar taking place in Houston, TX, this past January. The Produced Water Society Seminar is held every year. Each seminar emphasizes the latest ...
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Shell - produced water treatment
Client: Shell Auk CETCO Oilfield Services mobilised an 18” diameter twin vessel CrudeSep® test skid and a RFV 3000 adsorption skid comprising of dual sock filter pods and two vessels holding adsorption media canisters. The CETCO equipment was tied in downstream of the existing WEMCO and hydrocylones and successfully treated produced water at a variety of rates. Samples were taken from a variety ...
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Introduction to Fluorescence for Oil in Water Monitoring
Fluorescence can be found in many applications throughout our day-to-day routines. Commercially, one of the most obvious uses is in fluorescent lighting. For this, fluorescence is used to emit light from a tube without the use of heat, unlike standard incandescent light bulbs that require a heated element. In this example, fluorescence also contributes to energy conservation efforts. At ...
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Matching oil in water analyses with regulatory methods
While the amount of oil in water is highly regulated, it can also be a challenging measurement. It is complicated by the fact that oil conies in many forms and the measurement is defined by the particular regulatory method. When EPA 1664 is the regulatory method, the "oil" is anything that is extracted into hexane and remains after the hcxanc has been evaporated and appears as weight. In regions ...
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Understanding Oil-in-Water Instrument Specifications
The measurement capabilities of oil-in-water analysis methods are described by several analytical figures-of-merit. Examples are: Range (Linear and Dynamic) Limit of Detection (LOD) Limit of Quantification (LOQ) Precision (Repeatability and Reproducibility) Sensitivity Accuracy Response Time Some or all of these are often specified by customers in the bid packages issued when selecting a ...
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New oil spill response application note from China
The Problem: Oil may spill out in the process of oil exploration & development, refining, storage and transportation and enter into open water environment like oceanic environment due to incident or incorrect operation. Oil spill damages include to human heath, safety, ecological environment, aquaculture. In China, the State Oceanic Administration requires the oil content in the discharge to ...
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BP Schiehallion - produced water degasser
Client: BP Schiehallion - UK In July 2004 BP was required to take its produced water degasser on the Schiehallion FPSO offline for essential upgrade work. Without a replacement technology BP potentially faced a production shutdown during repairs. CETCO offered its CrudeSep® technology to BP as a temporary degasser vessel. In addition to oil and solids removal the CrudeSep® also acts as an ...
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