Environmentally friendly dispersion system used in the preparation of inverse emulsion polymers
US-9193898-B2 · Nov 24, 2015 · US
Compositions, systems, and methods for removing iron sulfide scale from oilfield components
US2018169714A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018169714-A1 |
| Application number | US-201815897892-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 15, 2018 |
| Priority date | Apr 20, 2015 |
| Publication date | Jun 21, 2018 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
First claim
Opening claim text (preview).
1 - 20 . (canceled) 21 . A method of removing iron sulfide scale from an oilfield component with iron sulfide scale, the method comprising applying to the oilfield component in an amount and for a time sufficient to remove iron sulfide scale from the oilfield component a removal material comprising a composition with the general structural formula: wherein R 1 comprises a nitrile group and R 2 is R 1 , hydrogen (H), or a moiety comprising an electron withdrawing group, and wherein at least 80% of the iron sulfide scale on the oilfield component is broken into component ions by the composition with general structural formula (I). 22 . The method of claim 21 , wherein the removal material comprises at least two distinct compositions with the general structural formula (I). 23 . The method of claim 21 , wherein the removal material further comprises a polar solvent. 24 . The method of claim 21 , wherein at least 85% of the iron sulfide scale on the oilfield component is broken into component ions by the composition with general structural formula (I). 25 . The method of claim 21 , wherein applying occurs in a sealed container. 26 . The method of claim 21 , further comprising recovering the removal material. 27 . The method of claim 21 , wherein the oilfield component comprises a perforation, a casing, a production tubular, a valve, a pump, or downhole completion equipment with iron sulfide scale. 28 . The method of claim 21 , wherein at least 90% of the iron sulfide scale on the oilfield component is broken into component ions by the composition with general structural formula (I). 29 . The method of claim 21 , wherein at least 95% of the iron sulfide scale on the oilfield component is broken into component ions by the composition with general structural formula (I). 30 . The method of claim 21 , wherein substantially all of the iron sulfide scale on the oilfield component is broken into component ions by the composition with general structural formula (I).
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2018169714A1 cover?
- The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/528. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 21 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).