Rheological and Emulsification Behavior of Xinjiang Heavy Oil and Model Oils

Abstract

Abstract:Transparent model oils are commonly used to study the flow patterns and pressure gradient of crude oil-water flow in gathering pipes. However, there are many differences between the model oil and crude oils. The existing literatures focus on the flow pattern transition and pressure gradient calculation of model oils. This paper compares two most commonly used model oils (white mineral oil and silicon oil) with Xinjiang crude oil from the perspectives of rheological properties, oil-water interfacial tensions, emulsion photomicrographs and demulsification process. It indicates that both the white mineral oil and the crude oils are pseudo plastic fluids, while silicon oil is Newtonian fluid. The viscosity-temperature relationship of white mineral oil is similar to that of the diluted crude oil, while the silicon oil presents a less viscosity gradient with the increasing temperature. The oil-water interfacial tension can be used to evaluate the oil dispersing ability in the water phase, but not to evaluate the emulsion stability. According to the Turbiscan lab and the stability test, the model oil emulsion is less stable than that of crude oil, and easier to present water separation.

Evaluation of Alkali/Surfactant/Polymer Flooding on Separation and Stabilization of Water/Oil Emulsion by Statistical Modeling

“…It uses a laser scattering technique, which precisely calculates the amount of dispersed phase settlement. Recently, a study on emulsion stabilization was conducted with laser transmission and backscattering techniques. ,, …”

“…Recently, a study on emulsion stabilization was conducted with laser transmission and backscattering techniques. 3,45,46 2.1. Materials.…”

Modulation of crude oil induced alteration of oxidative stress indices in rat by red palm oil

“…Crude oil is a diverse and harmful chemical that is injurious to the health of exposed animals and man (Ujuwundu et al, 2012;Jing et al, 2016;Dinesh, 2016).The health import of crude oil has been centred on its ability to induce oxidative stress (Achuba et al, 2016), a pathophysiological process that predisposes animals to many diseases (Ezejiofor et al, 2014;Conti and Shaik-Dasthagirisaeb, 2015;Khan et al, 2017) as well as organ and tissue damages (Achuba and Ogwumu, 2014a;Achuba and Nwokogba, 2015). This is the basis why many studies are focussing on search for materials with antioxidant capacity as antidote for crude oil toxicity (Achuba and Nwokogba, 2015;Achuba et al, 2016).…”