Methods of hydrotreating a liquid stream to remove clogging compounds
AssigneeShell Oil Company
InventorsJohannes Kornelis Minderhoud, Richard Gene Nelson, Augustinus Wilhelmus Maria Roes, Robert Charles Ryan, Vijay Nair
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Abstract
A method includes producing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a gas stream. At least a portion of the liquid stream is provided to a hydrotreating unit. At least a portion of selected in situ heat treatment clogging compositions in the liquid stream are removed to produce a hydrotreated liquid stream by hydrotreating at least a portion of the liquid stream at conditions sufficient to remove the selected in situ heat treatment clogging compositions.
Claims22
A method, comprising:
- producing formation fluid from a subsurface in situ heat treatment process;
- separating the formation fluid to produce a liquid stream and a gas stream;
- providing at least a portion of the liquid stream to a hydrotreating unit;
- and
- removing at least a portion of selected in situ heat treatment clogging compositions in the liquid stream to produce a hydrotreated liquid stream by hydrotreating at least a portion of the liquid stream at conditions sufficient to remove the selected in situ heat treatment clogging compositions.
A method of removing clogging compositions, comprising:
- producing formation fluid from a subsurface in situ heat treatment process;
- separating the formation fluid to produce a liquid stream and a gas stream;
- providing at least a portion of the liquid stream to a hydrotreating unit;
- and
- removing at least a portion of selected in situ heat treatment clogging compositions in the liquid stream by hydrotreating at least a portion of the liquid stream, wherein the clogging compositions comprise di-olefins, and hydrotreating converts at least 50% of the di-olefins to mono-olefins relative to the initial di-olefins content of the liquid stream.
Dependencies are inferred from the claim text.