An intensive experimental study is presented of big data nanoindentation (BDNi) characterization to reveal the cross-scale mechanical properties of, and hence distinguish the roles of different phases in, inorganic-organic hybrid oilwell…
Intensive big data nanoindentation (BDNi) characterization was performed to reveal the cross-scale mechanical properties of, and hence distinguish the different phases in, inorganicorganic hybrid oilwell cement-elastomer composites, hydrothermally…
An intensive experimental study is presented of big data nanoindentation (BDNi) characterization to reveal the cross-scale mechanical properties of, and hence distinguish the roles of different phases in, inorganic-organic hybrid oilwell…
Intensive big data nanoindentation (BDNi) characterization was performed to reveal the cross-scale mechanical properties of, and hence distinguish the different phases in, inorganicorganic hybrid oilwell cement-elastomer composites, hydrothermally…
An intensive experimental study is presented of big data nanoindentation (BDNi) characterization to reveal the cross-scale mechanical properties of, and hence distinguish the roles of different phases in, inorganic-organic hybrid oilwell…
Intensive big data nanoindentation (BDNi) characterization was performed to reveal the cross-scale mechanical properties of, and hence distinguish the different phases in, inorganicorganic hybrid oilwell cement-elastomer composites, hydrothermally…
An intensive experimental study is presented of big data nanoindentation (BDNi) characterization to reveal the cross-scale mechanical properties of, and hence distinguish the roles of different phases in, inorganic-organic hybrid oilwell…
Intensive big data nanoindentation (BDNi) characterization was performed to reveal the cross-scale mechanical properties of, and hence distinguish the different phases in, inorganicorganic hybrid oilwell cement-elastomer composites, hydrothermally…
An intensive experimental study is presented of big data nanoindentation (BDNi) characterization to reveal the cross-scale mechanical properties of, and hence distinguish the roles of different phases in, inorganic-organic hybrid oilwell…
Intensive big data nanoindentation (BDNi) characterization was performed to reveal the cross-scale mechanical properties of, and hence distinguish the different phases in, inorganicorganic hybrid oilwell cement-elastomer composites, hydrothermally…
This paper summarizes an investigation of certain operating parameters on the viscosity of petroleum emulsions. The production of crude oil is accompanied by emulsified water production, which comes along with various challenges like corroding the…
The challenges associated with heavy crude oil emulsions during hydrocarbon exploitation cannot be overemphasized. As such, water/crude oil separation in oil fields becomes necessary before conveyance to the refinery. In this study, we investigated…
Directional self-transportation of tiny droplets is significant in many fields. However, almost all existing studies focus on the phenomenon in air, and to realize similar performance in complex environments, such as oil, is still extremely rare.…
The application of microfibrillated cellulose and sodium dodecyl sulfate (SDS) to obtain heavy crude oil emulsions in water has been considered. First of all, the optimal concentration of cellulose in its aqueous dispersion was studied. A rheological…
The objective of this work is to study the effect of emulsion formation on steel corrosion in a sweet environment in a laboratory scale. Field experience shows that improper sizing of pipelines in the petroleum industry is often caused by a lack of…
Objectives/Scope: Mature fields operations, which are almost 70% of today's production have a high water cut content. For each barrel of oil produced there can be 3 or more barrels of water. This means that operational conditions are challenging and…
In order to decrease transportation cost, experimental studies on viscosity reduction of heavy oil-water system and on viscosity changing rules by ultrasonic wave have been carried out. The results show that ultrasonic wave process can reduce reverse…
Water and crude oil emulsions can be produced during oilfield operations. Since most oilfields are in the secondary or tertiary recovery stages, the amount of produced water is not negligible. Furthermore, enhanced oil recovery makes use of…
The oil industry consists of a great diversity of stages such as the extraction, storage, transportation, and processing of crude oil. In particular, oil storage turns out to be an area of interest for research because this specific stage is…
Effectively breaking an emulsion is very important in the petroleum industry since the produced crude oil is accompanied by water, which is linked to emulsions and can cause various environmental issues. To resolve these issues, surfactants are…
The gelation of emulsions is a notorious problem during the transportation of crude oil. In this study, the impact of dispersed water on the paraffin crystallization behavior in waxy crude oil was investigated using the mesoscopic dissipative…
Emulsions are common in the oil industry, being present in the extraction and production stages. Its formation occurs with the contact of brine and crude oil under intense flow. The presence of emulsified water (dispersed droplet size, φ ≤ 50 μm) in…
When oilfield development enters the middle and late stages, the crude oil–water mixture (COWM) produced from oil wells often has a high water cut and cannot form a stable emulsion. The traditional viscosity model of an emulsion is not suitable for…
Fluidizing highly converted hydrate particles is a potential way for continuously producing gas hydrate in gas storage application. However, the fundamental problem is to prevent hydrate agglomeration while keeping a high formation rate. In this…
The hydrate-based solidified natural gas (SNG) technology is a promising approach for natural gas storage and transportation. One challenge of this technology is to enhance the hydrate formation kinetics and achieve mild storage conditions. This work…
The development of concentrated and highly stable oil-in-water (O/W) emulsion is considered to be a cost-effective alternative for the transportation of produced heavy crude oils. However, the demulsification of a transported O/W emulsion is…
The low-temperature flow properties of waxy crude oils are considered the determining factor in pipeline transportation. Polymeric additives known as pour point depressants (PPDs) have been developed to control the growth habits of wax crystals to…
The formation of low-viscosity emulsions is a vital method for viscosity reduction of crude oil. Naphthenic acids, which are present in crude oil, are potential surface-active substances. Tertiary amines with CO2 response can be self-assembled in…
Crude oil transportation has been increasingly important for chemical industry, and to enhance the flowability of crude oil, various surfactants and amphipathic polymers have been utilized to form oil-in-water emulsions. As an alternative to…
The self-preservation phenomenon may be used for storage and transportation of natural gas in the form of gas hydrate. In this work, decomposition kinetics and self-preservation of methane hydrate dispersions in two types of crude oils were studied.…
In CO2 flooding, the dissolution of CO2 in produced fluid may change the stability of crude oil emulsion, thereby affecting the design/operation of the gathering pipeline and oil-water separation. The purpose of this study is to investigate the…
Emulsification behaviors of crude oil-water system has significant effects on flow pattern and pressure drop of crude oil-water two phase flow. The degree of emulsification, which is greatly affected by shearing intensity, water volume fraction and…
Wax diffusion characteristics are of great importance to the wax deposition prediction in crude oil pipelines. The wax diffusion process of water in oil emulsion (w/o emulsion) is more complicated on account of the influence from dispersed water…
Heavy crude oil shows high viscosity combined with low mobility, which affects the efficient transportation through pipelines. Drag has long been identified as the main reason for the loss of energy in pipeline fluid transmission and other similar…
This article thoroughly evaluates the performance of a synthesized surfactant as an emulsifier for the preparation of an Indian heavy crude oil-in-water (o/w) emulsion to enhance its ability to flow through offshore pipelines. The physico-chemical…
Although the problem of wax deposition in multiphase transportation pipelines have been addressed and some related wax deposition models have been developed in recent years, the complex wax deposition paths derived from the potential variety of flow…
This paper investigates the effect of the viscosity of crude oil and stress acting on buried oil pipelines inside dune sand. Due to the increase in energy demand, transportation of all hydrocarbons is obligatory. However, transportation of this oil…
The development of petroleum extraction and transport technology does not ensure complete isolation of these substances from the natural environment. This problem is exacerbated by the location of mining equipment on the sea shelf and the fact that…
The need for efficient demulsification process to treat emulsions in the petroleum industry is well acknowledged. For decades, numerous researches have been conducted to examine mechanisms of emulsification and demulsification. Untreated emulsion has…
Pipeline transportation is the most convenient means of transportation of crude oil continuously and economically from production site to refinery. However, transportation of heavy crude oil (HCO) through pipelines is difficult due to its high…
Wax can increase the viscosity of waxy crude oil, also precipitates and accumulates on the pipe wall, reducing the efficiency of pipe transportation. A strain of surfactant producing hydrocarbon degrading bacteria F-1 was isolated from crude oil…
Water (W) and oil (O) normally mix during production and while passing through valves and pumps to form a persistent water-in-oil (W/O) emulsion, which is a serious restriction in oil production and transporting and refining processes. The objective…
Emulsified water droplets must be extracted from crude oil for economical and transport purposes, which is achievable by chemical demulsification. Four different chemicals were tested on water-in-crude oil emulsions using a newly developed nuclear…
Recent work has shown the promise of cold flow technology for transporting waxy crude oils below their wax appearance temperatures. The thermal flux that results due to the difference between the temperature of the transported oil and the ambient is…
According to a survey of corrosion releases in hazardous liquids pipelines, of the 52 internal corrosion releases reported in 2009-2012, 31 occurred in intermittently operated lines. Pigging operations cannot be performed in many of these pipelines…
Formation of water/oil emulsions is a frequent and challenging problem to deal with during crude oil extraction and processing. Crude oil must have water contents (BS&W) below 0,5% to meet transport and export requirements. Lowering BS&W values in…
In this work, an experimental investigation on removing crude oil from a stainless steel tube using a biosurfactant such as emulsan was studied. The emulsan used in this study was produced byAcinetobacter calcoaceticusPTCC1318. The produced emulsan…