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THE EFFECT OF MOLECULAR WEIGHT OF WATERBORNE POLYURETHANES ON KINETIC HYDRATE INHIBITION

Abdolreza Farhadian

First published: 2019-06-20https://doi.org/10.5593/sgem2019/1.2/s06.141View metrics

Abstract

The oil and gas industry faces problems such as hydrates, waxes, corrosion and asphaltenes, which among them the formation of hydrates is one of the most serious problems.Gas hydrates include water and light gas molecules and the form at low temperatures and high pressures, as these conditions are available inside the oil and gas pipelines. They are responsible for the blockage of flow lines, valves and well heads, thereby causing great loss of production and other severe safety hazards to the oil and gas industry. Kinetic hydrate inhibitors (KHIs) are water-soluble polymers that are used to prevent gas hydrate blockages and they have been used in the field successfully. Recently, we introduced waterborne polyurethanes as a promising KHI. Here we are going to investigate the effect of molecular weight of waterborne polyurethane on inhibition performance. A high-pressure autoclave cell was used to evaluate the hydrate inhibition performances of waterborne polyurethanes. We checked the performance of inhibitors through the time when hydrate crystals are initially observed by naked eyes, and the time when rapid and continuous dropping of system pressure begins. The results revealed that the best performance of these inhibitors was achieved for the low molecular waterborne polyurethane.

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Publication details

Title
THE EFFECT OF MOLECULAR WEIGHT OF WATERBORNE POLYURETHANES ON KINETIC HYDRATE INHIBITION
Authors
Abdolreza Farhadian
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining
Publisher
STEF92 Technology
Year
2019
Pages
1109-1116
SWS Citekey
Farhadian2019611091116
ISSN
1314-2704
ISBN
978-619-7408-77-5
Language
en
Publication type
Conference Paper
Keywords
Kinetic hydrate inhibitorsFlow assuranceWaterborne polyurethaneMethane hydrate
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