Petroleum Science >2016, Issue 3: 489-495 DOI: https://doi.org/10.1007/s12182-016-0108-3
Experimental and modeling study of kinetics for methane hydrateformation in a crude oil-in-water emulsion Open Access
文章信息
作者：Shranish Kar,Himangshu Kakati,Ajay Mandal and Sukumar Laik
作者单位：
Department of Petroleum Engineering, Indian School of Mines, Dhanbad 826004, India;Department of Petroleum Engineering, Indian School of Mines, Dhanbad 826004, India;Department of Petroleum Engineering, Indian School of Mines, Dhanbad 826004, India;Department of Petroleum Engineering, Indian School of Mines, Dhanbad 826004, India
投稿时间：2015-12-22
引用方式：Kar, S., Kakati, H., Mandal, A. et al. Pet. Sci. (2016) 13: 489. https://doi.org/10.1007/s12182-016-0108-3
文章摘要
A low-viscosity emulsion of crude oil in water
can be believed to be the bulk of a flow regime in a
pipeline. To differentiate which crude oil would and which
would not counter the blockage of flow due to gas hydrate
formation in flow channels, varying amount of crude oil in
water emulsion without any other extraneous additives has
undergone methane gas hydrate formation in an autoclave
cell. Crude oil was able to thermodynamically inhibit the
gas hydrate formation as observed from its hydrate stability
zone. The normalized rate of hydrate formation in the
emulsion has been calculated from an illustrative chemical
affinity model, which showed a decrease in the methane
consumption (decreased normalized rate constant) with an
increase in the oil content in the emulsion. Fourier transform
infrared spectroscopy (FTIR) of the emulsion and
characteristic properties of the crude oil have been used to
find the chemical component that could be pivotal in selfinhibitory
characteristic of the crude oil collected from
Ankleshwar, India, against a situation of clogged flow due
to formation of gas hydrate and establish flow assurance.
can be believed to be the bulk of a flow regime in a
pipeline. To differentiate which crude oil would and which
would not counter the blockage of flow due to gas hydrate
formation in flow channels, varying amount of crude oil in
water emulsion without any other extraneous additives has
undergone methane gas hydrate formation in an autoclave
cell. Crude oil was able to thermodynamically inhibit the
gas hydrate formation as observed from its hydrate stability
zone. The normalized rate of hydrate formation in the
emulsion has been calculated from an illustrative chemical
affinity model, which showed a decrease in the methane
consumption (decreased normalized rate constant) with an
increase in the oil content in the emulsion. Fourier transform
infrared spectroscopy (FTIR) of the emulsion and
characteristic properties of the crude oil have been used to
find the chemical component that could be pivotal in selfinhibitory
characteristic of the crude oil collected from
Ankleshwar, India, against a situation of clogged flow due
to formation of gas hydrate and establish flow assurance.
关键词
-
Methane gas hydrates Organic inhibitors Chemical affinity model Normalized rate constant Asphaltenes