Proppant compositions and methods of use
US-2016075937-A1 · Mar 17, 2016 · US
Polymeric tracers
US10408046B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10408046-B2 |
| Application number | US-201916383137-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2019 |
| Priority date | Nov 7, 2016 |
| Publication date | Sep 10, 2019 |
| Grant date | Sep 10, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
Tracing subterranean fluid flow includes providing a first polymeric tracer to a first injector, collecting a first aqueous sample from a first producer, and assessing the presence of the first polymeric tracer in the first aqueous sample. The first polymeric tracer includes a first polymer formed from at least a first monomer. The presence of the first polymeric tracer in the first aqueous sample is assessed by removing water from the first aqueous sample to yield a first dehydrated sample. pyrolyzing the first dehydrated sample to yield a first gaseous sample, and assessing the presence of a pyrolization product of the first polymer in the first gaseous sample. The presence of the pyrolization product of the first polymer in the first gaseous sample is indicative of the presence of a first subterranean flow pathway between the first injector location and the first producer location.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of tracing fluid flow in a subterranean formation, comprising: providing a polymeric tracer comprising a polymer nanoparticle having a polymeric core surrounded by a protective polymeric layer to an injector location in the subterranean formation, wherein the polymer nanoparticle comprises a surfactant layer between the polymeric core and the polymeric layer; collecting an aqueous sample from a producer location in the subterranean formation; removing water from the aqueous sample to yield a dehydrated sample; pyrolyzing the dehydrated sample to yield a gaseous sample; and assessing presence of a pyrolization product of the polymeric core in the gaseous sample, wherein the presence of the pyrolization product in the gaseous sample is indicative of presence of the polymeric tracer in the aqueous sample. 2. The method of claim 1 , wherein providing the polymeric tracer comprises providing the polymer tracer to the injector location to flow through the subterranean formation from the injector location to the producer location, and wherein the polymeric layer comprises polyethyleneimine (PEI) or a crosslinked carbohydrate-based coating. 3. The method of claim 1 , comprising preserving the polymeric core in reservoir conditions in the subterranean formation via the polymeric layer, wherein the polymeric core comprises a vinyl polymer, and wherein the surfactant layer comprises an anionic surfactant coated on the polymeric core.
Assignees
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Classifications
Bromine · CPC title
Chlorine · CPC title
Oxygen · CPC title
Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 · CPC title
Preparation of the fraction to be distributed · CPC title
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- What does patent US10408046B2 cover?
- Tracing subterranean fluid flow includes providing a first polymeric tracer to a first injector, collecting a first aqueous sample from a first producer, and assessing the presence of the first polymeric tracer in the first aqueous sample. The first polymeric tracer includes a first polymer formed from at least a first monomer. The presence of the first polymeric tracer in the first aqueous sam…
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification E21B47/1015. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Sep 10 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).