Nanoparticles to help with oil production
Using nanoparticles will help raise significantly the coefficient rate in oil extraction.

The Siberian Federal University, together with the Novosibirsk State University, developed a model for the extraction of oil with a nano liquid from microporous materials.

    Results showed that the efficiency rating of extracting oil is considerably higher if nano particles are added to the oil being extracted – rather than water. As demonstrated by the scientists, the water moves through the material saturated in oil in the form of separate streams at the same time that the nano liquid extracts the oil with a homogeneous front.

    What is more, a large share of all known world oil reserves are located in sand formations and the extraction method involves flooding the stratum concerned. The liquid used in this process is water or solutions of surfactants — substances which tend to reduce the surface tension of a liquid in which they are dissolved. And the efficiency rate of extraction in this process is 25-40 %.

    Oil industry experts also use methods like a steam thermal effect on the stratum, combustion within the stratum, extraction with hot water, removal of air from within the stratum and others. All of these, however, may not prove to be efficient enough.

    “We used for our model experimental measured readings of interfacial tension and the wetting angle on the edge of the oil -rock formation-nano liquid. As a nano liquid we used a water suspension with nano particles of silicon oxide – with an average size of five nanometres. The concentration of nano particles varied from 0 to 1 MAC %. For example, a nano suspension of 1 Mac. % SiO2 with a size of five nanometres more than doubled the coefficient when compared with ordinary water. And this occurred solely because of an improved process of wetting the rock formation,” said Vladimir Zhigarev, co-author of the research and a laboratory researcher for physics-chemistry technologies involving difficult of access hydrocarbon reserves.

    The nano liquid moves on the porous material on a single, homogeneous front throughout the entire estimated surface area. And if the water comes through to the edge of the estimated area at approximately one second from the beginning of the flowing process of the stratum, the nano liquid with a concentration of particles of 1 Mac. 5 makes that burst occur over the course of approximately 1.8 seconds, the researchers said.

     “As a result of the use of the nano liquid, a considerably larger volume of porous rock is collected through the extraction movement. It therefore follows that a greater amount of oil is washed out from the rock. This research confirms the good prospects for the use of nano particles for developing current and planned deposits,” Zhigarev said.


Share on facebook
Share on telegram
Share on email
Share on twitter
Share on vk
Share on odnoklassniki
Share on reddit

Add comments

Your email address will not be published. Required fields are marked *

Fuel cell aircraft

Australian air carrier Skytrans and startup Stralis Aircraft have announced their intention to launch a hydrogen fuel cell plane by 2026. The companies plan retrofitting of a 19-seat Beechcraft 1900D airliner operating in Queensland, northeast Australia. A new hydrogen-electric propulsion system and a liquid hydrogen storage tank will replace a turbofan engine and a kerosene fuel system.

read more ...

Seven trends in global energy markets

China has replaced Japan as the world’s largest importer of liquefied natural gas (LNG), according to a new annual review of global energy by BP. China increased its LNG imports by 17% (to 109.5 bcm in regasified form) in 2021, while Japan decreased it by 0.1%, to 101.3 bcm. This allowed China to come out on top globally.

read more ...

Presa hidroeléctrica impresa en 3D

China va a construir la presa hidroeléctrica Yangqu en la meseta tibetana utilizando la impresión 3D. La presa de 180 metros de altura se construirá capa por capa utilizando una impresora 3D de propósito especial, que se empleará junto con camiones, excavadoras, excavadoras, pavimentadoras y rodillos controlados por inteligencia artificial

read more ...


October 2021