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ICL Innovation, a technology incubator for the ICL group, seeks novel asphaltene inhibitors and asphaltene dispersants for the oil industry. As the efficiency of dispersants with different origins is questionable for each typical oil sample, the present study provides a reproducible and. Dodecyl resorcinol has the best performance at concentration of 50 ppm as an asphaltene dispersant and causes required n-heptane volume increment of 2%.

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There are two types classes of additives used to tackle the asphaltene problem at the production sites.

Asphaltene Dispersants

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As mentioned previously, the asphaltene performance is very oil-specific.

Publishers Content Coverage Privacy. Gonzalez, “Stabilization of asphaltenes by phenolic compounds extracted from cashew-nut shell liquid,” Journal of Applied Polymer Science, 73 1 Information on ICL’s current product line can disperssnt found at www.

The method was used to evaluate stabilization of asphaltenes in the crude oil and to screen asphaltene dispersants.

Asphaltene can precipitate deep inside the reservoir, in pipelines or onto safety equipment and cause asphalltene and severe emulsion formation resulting in reservoir damage, loss of crude oil recovery and escalating costs. AI agents are polymeric resinous materials that stabilize the asphaltenes and prevent destabilization, agglomeration and flocculation of asphaltenes by forming strong association with asphaltene moieties.

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About us Contact us Help Terms of use. Most common ones are xylene and toluene. Circulating the dispersant in a tank with heated crude has also dispersed the tarry solid ssphaltene the oil for sale with normal produced crude. Asphaltenes exist in the form of colloidal dispersions stabilized by other constituents of the crude oil. Therefore, some asphaltene inhibitors can function as asphaltene dispersants.

Asphaltene Dispersant & Pour Point Depressant

Once agglomeration occurs, destabilized asphaltenes can form a thick pad in the dehydration equipment, which significantly reduces the demulsification rate.

The proposal would need to clearly describe the technical concept chemical approach, structure if IP protected and proof of concept results, if available.

Most asphaltene solvents are based on aromatic solvents, sometimes with added enhancers [ 7 ]. Did you find what you were looking for? Marques, Gaspar Gonzalez, Jair B. Destabilization of petroleum asphaltenes may cause a multitude of problems in crude oil recovery and production. For example, continuous or batch downhole treatments prevented dlspersant in the flowlines and tubing providing increased production rates and decreased downtime for many producers.

The absorption interaction between an asphaltene and an amphiphile molecule natural resin dispdrsant synthetic additive is considered the most important parameter for the stabilization of asphltene micelles in crude oil.

Asphaltene Dispersants as Demulsification Aids. AI additives prevent the aggregation of asphaltene molecules, whereas AD additives are usually non-polymeric surfactants. Since asphaltene inhibitors prevent precipitation, they are best applied upstream of the location where asphaltene onset pressure occurs, typically downhole.

Asphaltenf typically do not show a critical concentration effect and the effectiveness is proportional to the concentration. Therefore, it is very important to conduct inhibitor screening on the actual crude sample.

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These naturally occurring dispersions can be easily dispersamt by a variety of mechanical and physicochemical conditions involved asphaltenne oil field recovery and production, Changes in temperature and pressure, commingling of crude and condensate streams, and especially the use of enhanced recovery techniques can result in asphaltene destabilization, precipitation, and eventual deposition.

Like asphaltene inhibitors, the performance of asphaltene dispersants is also specific to the types of oils. The technique monitors asphaltene agglomeration while undergoing titration with an incompatible solvent precipitant.

Proceedings of an international conference Oceanology: A product that works well on one type of oil may not work well on other fluids.

These are asphaltene dispersants AD and asphaltene inhibitors AI. This is partially contributed to the presence of organic acids in the oil. Although generally referred to as asphaltene inhibitors by the industrythis class of additives can actually further divided as asphaltene inhibitors and asphaltene dispersants, depending on their mechanisms of preventing asphaltene deposition.

Therefore, it is very important to use the actual oil during production selection. Cleanup of tank bottoms with an asphaltene dispersant has been a popular alternative to opening the tank in order to mechanically remove thick asphaltene solids for disposal.

In general asphaltene inhibitors are polymeric chemistries with charged groups that are aimed to function as artificial resins to keep the asphaltenes in solution.