Process for preparing an internal olefin sulfonate
US-9221750-B2 · Dec 29, 2015 · US
Compounds and method for enhanced oil recovery using sulfur surfactants
US10370582B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10370582-B2 |
| Application number | US-201414774568-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 13, 2014 |
| Priority date | Mar 15, 2013 |
| Publication date | Aug 6, 2019 |
| Grant date | Aug 6, 2019 |
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- Title
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- Abstract
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Abstract
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A method of enhanced oil recovery wherein: (a) a flooding composition is delivered into a subterranean reservoir; (b) the flooding composition includes a sulfur surfactant; and (c) the fluid produced from the subterranean reservoir can also be analyzed to determine if the surfactant is present in the fluid. The surfactant preferably includes a sulfonate moiety or other sulfur-containing moiety. The presence of the surfactant in the fluid produced from the subterranean reservoir is preferably determined by X-ray fluorescence spectroscopy, HPLC-AES, or HPLC-ICP.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound of a formula: wherein R is a linear or branched hydrocarbon constituent group having from 8 to 24 carbon atoms. 2. A method of enhanced oil recovery from a subterranean reservoir comprising the: (a) delivering a flooding composition into said subterranean reservoir, said flooding composition including a surfactant comprising at least one sulfonate moiety or other sulfur-containing moiety, or a combination thereof; and (b) analyzing a fluid produced from said subterranean reservoir to determine if said surfactant is present in said fluid, wherein said surfactant comprises one or more compounds having a formula: wherein R is a linear or branched hydrocarbon constituent group of having from 8 to 24 carbon atoms.
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Classifications
- C09K8/584Primary
characterised by the use of specific surfactants · CPC title
Radicals substituted by nitrogen atoms · CPC title
with oxygen atoms in positions 1 and 3, e.g. phthalimide · CPC title
with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms · CPC title
Ring systems containing three or more rings · CPC title
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- What does patent US10370582B2 cover?
- A method of enhanced oil recovery wherein: (a) a flooding composition is delivered into a subterranean reservoir; (b) the flooding composition includes a sulfur surfactant; and (c) the fluid produced from the subterranean reservoir can also be analyzed to determine if the surfactant is present in the fluid. The surfactant preferably includes a sulfonate moiety or other sulfur-containing moiety.…
- Who is the assignee on this patent?
- Ingevity South Carolina Llc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/584. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 06 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).